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CX2SA > SATDIG 09.11.15 21:23l 1255 Lines 50180 Bytes #999 (0) @ WW
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Sent: 151109/1918Z @:CX2SA.SAL.URY.SOAM #:33200 [Salto] FBB7.00e $:AMSATBB10349
From: CX2SA@CX2SA.SAL.URY.SOAM
To : SATDIG@WW
Today's Topics:
1. FM signal on FO-29 (Todd W. Deckard)
2. Re: FM signal on FO-29? (Zach Leffke)
3. Upcoming ARISS Contact Schedule as of 2015-11-09 19:00 UTC
(AJ9N@xxx.xxxx
4. Re: AO-85 Testing November 8 and 9 (alancresswell@xxxx.xx.xxx
----------------------------------------------------------------------
Message: 1
Date: Mon, 9 Nov 2015 05:59:25 -0600
From: "Todd W. Deckard" <twdeckard@xxxxxxxxx.xxx>
To: "amsat-bb@xxxxx.xxxx <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] FM signal on FO-29
Message-ID: <4BE8EF56-05D9-4C7A-BC60-243E332E5C93@xxxxxxxxx.xxx>
Content-Type: text/plain; charset=us-ascii
It's not uncommon to hear Brazilian pirates on FLTSAT and UFO military
satcom frequencies. I wonder if the recent crackdowns have pushed them to
the OSCARS.
Sent from my iPhone
> On Nov 8, 2015, at 6:46 PM, amsat-bb-request@xxxxx.xxx wrote:
>
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> Today's Topics:
>
> 1. Re: FM signal on FO-29? (Zach Leffke)
> 2. Re: FM signal on FO-29? (Burns Fisher)
> 3. Re: FM signal on FO-29? (Robert Bruninga)
> 4. Re: FM signal on FO-29? (Robert Bruninga)
> 5. Re: FM signal on FO-29? (Zach Leffke)
> 6. Re: FM signal on FO-29? (Hector W5CBF/CO6CBF)
> 7. Re: FM signal on FO-29? (Zach Leffke)
> 8. Re: FM signal on FO-29? (Zach Leffke)
> 9. Re: FM signal on FO-29 (VK4NBL)
> 10. Re: Frequency chart and satellite information -online- (Ted)
> 11. Fm activity on FO29 (jeffory broughton)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Sun, 8 Nov 2015 17:54:28 -0500
> From: Zach Leffke <zleffke@xx.xxx>
> To: amsat-bb@xxxxx.xxx
> Subject: Re: [amsat-bb] FM signal on FO-29?
> Message-ID: <563FD2A4.9050200@xx.xxx>
> Content-Type: text/plain; charset=windows-1252; format=flowed
>
> well.. when I say students, I meant graduate students at VT that
> happened to be in the lab when I was doing the experiment. They work
> with me and Bob, so a few crude words here and there aren't uncommon to
> them.
>
> But good point, probably not the best thing for a public demo if your
> audience is a bit younger.
>
> Actually, I've seen so much FM activity (basically every time I've
> monitored FO-29 since we first came online in late september) that I've
> been toying with the idea of trying to locate where the source emitters
> actually are located based on doppler shift data. We know the doppler
> between the receiving ground station and FO-29, so we can back that
> out. We know the transponder mapping, so we can work through that to
> determine what the center frequency is as the signal enters the
> transponder uplink receiver. What we don't know is the uplink doppler,
> because we don't know where the emitter is and we don't know what exact
> center frequency they are on (but I bet you its in 5kHz steps, maybe
> 2.5kHz). So we have two unknowns. I'm betting there's a way to work
> through it though, and with enough observations and by watching the rate
> of change of the doppler, I bet there's a way to make an educated guess
> on what their center freq and location are.
>
> Or if someone listening knows Spanish and/or Portugese, maybe we could
> get lucky and hear what cross streets the taxi is going to (if it is in
> fact a taxi).
>
> -Zach, KJ4QLP
>
>> On 11/08/2015 05:30 PM, Clayton W5PFG wrote:
>> I wouldn't recommend playing the FM audio heard via FO-29 to a group
>> of children. Normally it's not English. It's most likely NOT a
>> religious broadcast based on their choice of crude words.
>>
>> 73
>> Clayton
>> W5PFG
>>
>>> On 11/8/2015 16:13, Zach Leffke wrote:
>>> So yes, in the last couple weeks I've seen a LOT of FM activity on
>>> FO-29. And based on my experience with Friday's pass, which was
>>> ascending, I'm leading towards the Central/South America QRM theory.
>>> Lots of strong FM activity as the pass started and the satellite was
>>> over the lower latitudes, but as FO-29 ascended over higher latitudes
>>> towards the north pole, the FM activity died down.
>>>
>>> -Zach, KJ4QLP
>> _______________________________________________
>> Sent via AMSAT-BB@xxxxx.xxx. AMSAT-NA makes this open forum available
>> to all interested persons worldwide without requiring membership.
>> Opinions expressed
>> are solely those of the author, and do not reflect the official views
>> of AMSAT-NA.
>> Not an AMSAT-NA member? Join now to support the amateur satellite
>> program!
>> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
>
>
>
> ------------------------------
>
> Message: 2
> Date: Sun, 8 Nov 2015 18:04:49 -0500
> From: Burns Fisher <burns@xxxxxx.xx>
> To: Paul Stoetzer <n8hm@xxxx.xxx>
> Cc: Clayton W5PFG <w5pfg@xxxxx.xxx>, "amsat-bb@xxxxx.xxxx
> <amsat-bb@xxxxx.xxx>
> Subject: Re: [amsat-bb] FM signal on FO-29?
> Message-ID:
> <CABX7KxWCRhJ+3093GEruVQcBgLhpHhQYqGR9bLmAgTC+4hy3QQ@xxxx.xxxxx.xxx>
> Content-Type: text/plain; charset=UTF-8
>
> Fun and interesting! AO85 and AO73 have been coinciding frequently of
> late, but they are not compatible.
>
>> On Sun, Nov 8, 2015 at 5:33 PM, Paul Stoetzer <n8hm@xxxx.xxx> wrote:
>> Speaking of FM signals on FO-29, you'll be able to hear the AO-85
>> transponder through FO-29 when their paths cross as well. I wonder if
>> you could get a high enough SNR to decode the DUV...
>>
>> 73,
>>
>> Paul, N8HM
>>
>>> On Sun, Nov 8, 2015 at 5:30 PM, Clayton W5PFG <w5pfg@xxxxx.xxx> wrote:
>>> I wouldn't recommend playing the FM audio heard via FO-29 to a group of
>>> children. Normally it's not English. It's most likely NOT a religious
>>> broadcast based on their choice of crude words.
>>>
>>> 73
>>> Clayton
>>> W5PFG
>>>
>>>> On 11/8/2015 16:13, Zach Leffke wrote:
>>>>
>>>> So yes, in the last couple weeks I've seen a LOT of FM activity on
>>>> FO-29. And based on my experience with Friday's pass, which was
>>>> ascending, I'm leading towards the Central/South America QRM theory.
>>>> Lots of strong FM activity as the pass started and the satellite was
>>>> over the lower latitudes, but as FO-29 ascended over higher latitudes
>>>> towards the north pole, the FM activity died down.
>>>>
>>>> -Zach, KJ4QLP
>>>
>>> _______________________________________________
>>> Sent via AMSAT-BB@xxxxx.xxx. AMSAT-NA makes this open forum available
>>> to all interested persons worldwide without requiring membership. Opinions
>>> expressed
>>> are solely those of the author, and do not reflect the official views of
>>> AMSAT-NA.
>>> Not an AMSAT-NA member? Join now to support the amateur satellite program!
>>> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
>> _______________________________________________
>> Sent via AMSAT-BB@xxxxx.xxx. AMSAT-NA makes this open forum available
>> to all interested persons worldwide without requiring membership.
Opinions expressed
>> are solely those of the author, and do not reflect the official views of
AMSAT-NA.
>> Not an AMSAT-NA member? Join now to support the amateur satellite program!
>> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
>
>
> ------------------------------
>
> Message: 3
> Date: Sun, 8 Nov 2015 18:10:48 -0500
> From: Robert Bruninga <bruninga@xxxx.xxx>
> To: Zach Leffke <zleffke@xx.xxx>
> Cc: amsat bb <amsat-bb@xxxxx.xxx>
> Subject: Re: [amsat-bb] FM signal on FO-29?
> Message-ID:
> <CALdCfNK9ctph66fy-=+Cd4k6oPxYM4rUVVUNwbCduPtWdzLmKA@xxxx.xxxxx.xxx>
> Content-Type: text/plain; charset=UTF-8
>
> Zach
>
>> On Sun, Nov 8, 2015 at 5:54 PM, Zach Leffke <zleffke@xx.xxx> wrote:
>>
>> well.. when I say students, I meant graduate students at VT that happened
>> to be in the lab when I was doing the experiment. They work with me and
>> Bob, so a few crude words here and there aren't uncommon to them.
>>
>> But good point, probably not the best thing for a public demo if your
>> audience is a bit younger.
>>
>> Actually, I've seen so much FM activity (basically every time I've
>> monitored FO-29 since we first came online in late september) that I've
>> been toying with the idea of trying to locate where the source emitters
>> actually are located based on doppler shift data. We know the doppler
>> between the receiving ground station and FO-29, so we can back that out.
>> We know the transponder mapping, so we can work through that to determine
>> what the center frequency is as the signal enters the transponder uplink
>> receiver. What we don't know is the uplink doppler, because we don't know
>> where the emitter is and we don't know what exact center frequency they are
>> on (but I bet you its in 5kHz steps, maybe 2.5kHz). So we have two
>> unknowns. I'm betting there's a way to work through it though, and with
>> enough observations and by watching the rate of change of the doppler, I
>> bet there's a way to make an educated guess on what their center freq and
>> location are.
>>
>> Or if someone listening knows Spanish and/or Portugese, maybe we could get
>> lucky and hear what cross streets the taxi is going to (if it is in fact a
>> taxi).
>>
>> -Zach, KJ4QLP
>>
>>> On 11/08/2015 05:30 PM, Clayton W5PFG wrote:
>>>
>>> I wouldn't recommend playing the FM audio heard via FO-29 to a group of
>>> children. Normally it's not English. It's most likely NOT a religious
>>> broadcast based on their choice of crude words.
>>>
>>> 73
>>> Clayton
>>> W5PFG
>>>
>>>> On 11/8/2015 16:13, Zach Leffke wrote:
>>>>
>>>> So yes, in the last couple weeks I've seen a LOT of FM activity on
>>>> FO-29. And based on my experience with Friday's pass, which was
>>>> ascending, I'm leading towards the Central/South America QRM theory.
>>>> Lots of strong FM activity as the pass started and the satellite was
>>>> over the lower latitudes, but as FO-29 ascended over higher latitudes
>>>> towards the north pole, the FM activity died down.
>>>>
>>>> -Zach, KJ4QLP
>>> _______________________________________________
>>> Sent via AMSAT-BB@xxxxx.xxx. AMSAT-NA makes this open forum available
>>> to all interested persons worldwide without requiring membership.
>>> Opinions expressed
>>> are solely those of the author, and do not reflect the official views of
>>> AMSAT-NA.
>>> Not an AMSAT-NA member? Join now to support the amateur satellite program!
>>> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
>>
>> _______________________________________________
>> Sent via AMSAT-BB@xxxxx.xxx. AMSAT-NA makes this open forum available
>> to all interested persons worldwide without requiring membership. Opinions
>> expressed
>> are solely those of the author, and do not reflect the official views of
>> AMSAT-NA.
>> Not an AMSAT-NA member? Join now to support the amateur satellite program!
>> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
>
>
> ------------------------------
>
> Message: 4
> Date: Sun, 8 Nov 2015 18:12:35 -0500
> From: Robert Bruninga <bruninga@xxxx.xxx>
> To: Zach Leffke <zleffke@xx.xxx>
> Cc: amsat bb <amsat-bb@xxxxx.xxx>
> Subject: Re: [amsat-bb] FM signal on FO-29?
> Message-ID:
> <CALdCfN+cyT1Cj_KYyeXisB_Hds5runD6fOoRfkLuohdfSC+u6Q@xxxx.xxxxx.xxx>
> Content-Type: text/plain; charset=UTF-8
>
> Zach
> You dont need to know the senders exact freq, just a plot of his freq
> during the pass will form an "S" curve and once you have enough of the "S",
> you can know his center freq, and hence his closest point of approach.
> That gives a line of bearing. Anothe pass gives another one, and so on...
>
> bob
>
>> On Sun, Nov 8, 2015 at 5:54 PM, Zach Leffke <zleffke@xx.xxx> wrote:
>>
>> well.. when I say students, I meant graduate students at VT that happened
>> to be in the lab when I was doing the experiment. They work with me and
>> Bob, so a few crude words here and there aren't uncommon to them.
>>
>> But good point, probably not the best thing for a public demo if your
>> audience is a bit younger.
>>
>> Actually, I've seen so much FM activity (basically every time I've
>> monitored FO-29 since we first came online in late september) that I've
>> been toying with the idea of trying to locate where the source emitters
>> actually are located based on doppler shift data. We know the doppler
>> between the receiving ground station and FO-29, so we can back that out.
>> We know the transponder mapping, so we can work through that to determine
>> what the center frequency is as the signal enters the transponder uplink
>> receiver. What we don't know is the uplink doppler, because we don't know
>> where the emitter is and we don't know what exact center frequency they are
>> on (but I bet you its in 5kHz steps, maybe 2.5kHz). So we have two
>> unknowns. I'm betting there's a way to work through it though, and with
>> enough observations and by watching the rate of change of the doppler, I
>> bet there's a way to make an educated guess on what their center freq and
>> location are.
>>
>> Or if someone listening knows Spanish and/or Portugese, maybe we could get
>> lucky and hear what cross streets the taxi is going to (if it is in fact a
>> taxi).
>>
>> -Zach, KJ4QLP
>>
>>> On 11/08/2015 05:30 PM, Clayton W5PFG wrote:
>>>
>>> I wouldn't recommend playing the FM audio heard via FO-29 to a group of
>>> children. Normally it's not English. It's most likely NOT a religious
>>> broadcast based on their choice of crude words.
>>>
>>> 73
>>> Clayton
>>> W5PFG
>>>
>>>> On 11/8/2015 16:13, Zach Leffke wrote:
>>>>
>>>> So yes, in the last couple weeks I've seen a LOT of FM activity on
>>>> FO-29. And based on my experience with Friday's pass, which was
>>>> ascending, I'm leading towards the Central/South America QRM theory.
>>>> Lots of strong FM activity as the pass started and the satellite was
>>>> over the lower latitudes, but as FO-29 ascended over higher latitudes
>>>> towards the north pole, the FM activity died down.
>>>>
>>>> -Zach, KJ4QLP
>>> _______________________________________________
>>> Sent via AMSAT-BB@xxxxx.xxx. AMSAT-NA makes this open forum available
>>> to all interested persons worldwide without requiring membership.
>>> Opinions expressed
>>> are solely those of the author, and do not reflect the official views of
>>> AMSAT-NA.
>>> Not an AMSAT-NA member? Join now to support the amateur satellite program!
>>> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
>>
>> _______________________________________________
>> Sent via AMSAT-BB@xxxxx.xxx. AMSAT-NA makes this open forum available
>> to all interested persons worldwide without requiring membership. Opinions
>> expressed
>> are solely those of the author, and do not reflect the official views of
>> AMSAT-NA.
>> Not an AMSAT-NA member? Join now to support the amateur satellite program!
>> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
>
>
> ------------------------------
>
> Message: 5
> Date: Sun, 8 Nov 2015 18:30:33 -0500
> From: Zach Leffke <zleffke@xx.xxx>
> To: amsat-bb@xxxxx.xxx
> Subject: Re: [amsat-bb] FM signal on FO-29?
> Message-ID: <563FDB19.7070501@xx.xxx>
> Content-Type: text/plain; charset=windows-1252; format=flowed
>
> Sweet, second cross link signal to look into! I missed that, you got
> the gears turning.......
>
> So lets see.... 145.900MHz to 146.000MHz for FO-29 passband.
>
> A quick look through JE9PEL satlist reveals these downlinks:
>
> AO73 tlm bcn, 145.935 MHz
> AO73 transponder, 145.970-145.950 MHz
> AO85, 145.978 MHz
> First-MOVE cubesat (NORAD ID 39439), 145.970MHz
> DUCHIFAT, 145.980 MHz
> QB50p1/FUNcube3 (EO-79) transponder, 145.970-145.945 MHz
> VELOX-I, 145.980 MHz
> UKube-1/FUNcube-2, 145.915 MHz
> DeorbitSail, 145.975 MHz
> CAS-3E (XW-2E) transponder, 145.935-145.915 MHz
> CAS-3F (XW-2F) transponder, 146.000-146.980 MHz
> Fox-1B, 145.960 MHz
> Fox-1C, 145.920 MHz
>
> I guess its not that surprising when FO-29 has half of the 2m Satellite
> Service allocation for its uplink. Next thing to do is figure out which
> ones are the most likely to be successful based on power levels,
> modulation schemes, transmission rate, which ones are using Forward
> Error Correction, etc. And then look at the orbits for possible chain
> events.
>
> fun stuff!
>
> Does anyone know the uplink receiver sensitivity and antenna gain/design
> on FO-29?
>
> -Zach, KJ4QLP
>
>
>> On 11/08/2015 05:33 PM, Paul Stoetzer wrote:
>> Speaking of FM signals on FO-29, you'll be able to hear the AO-85
>> transponder through FO-29 when their paths cross as well. I wonder if
>> you could get a high enough SNR to decode the DUV...
>>
>> 73,
>>
>> Paul, N8HM
>>
>>> On Sun, Nov 8, 2015 at 5:30 PM, Clayton W5PFG <w5pfg@xxxxx.xxx> wrote:
>>> I wouldn't recommend playing the FM audio heard via FO-29 to a group of
>>> children. Normally it's not English. It's most likely NOT a religious
>>> broadcast based on their choice of crude words.
>>>
>>> 73
>>> Clayton
>>> W5PFG
>>>
>>>> On 11/8/2015 16:13, Zach Leffke wrote:
>>>> So yes, in the last couple weeks I've seen a LOT of FM activity on
>>>> FO-29. And based on my experience with Friday's pass, which was
>>>> ascending, I'm leading towards the Central/South America QRM theory.
>>>> Lots of strong FM activity as the pass started and the satellite was
>>>> over the lower latitudes, but as FO-29 ascended over higher latitudes
>>>> towards the north pole, the FM activity died down.
>>>>
>>>> -Zach, KJ4QLP
>>> _______________________________________________
>>> Sent via AMSAT-BB@xxxxx.xxx. AMSAT-NA makes this open forum available
>>> to all interested persons worldwide without requiring membership. Opinions
>>> expressed
>>> are solely those of the author, and do not reflect the official views of
>>> AMSAT-NA.
>>> Not an AMSAT-NA member? Join now to support the amateur satellite program!
>>> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
>> _______________________________________________
>> Sent via AMSAT-BB@xxxxx.xxx. AMSAT-NA makes this open forum available
>> to all interested persons worldwide without requiring membership.
Opinions expressed
>> are solely those of the author, and do not reflect the official views of
AMSAT-NA.
>> Not an AMSAT-NA member? Join now to support the amateur satellite program!
>> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
>
>
>
> ------------------------------
>
> Message: 6
> Date: Sun, 8 Nov 2015 17:34:43 -0600
> From: "Hector W5CBF/CO6CBF" <kf5yxv@xxxxx.xxx>
> To: "'Zach Leffke'" <zleffke@xx.xxx>, <amsat-bb@xxxxx.xxx>
> Subject: Re: [amsat-bb] FM signal on FO-29?
> Message-ID: <01dd01d11a7e$0d033310$27099930$@xxxxx.xxx>
> Content-Type: text/plain; charset="us-ascii"
>
> Hi Zach and group
>
> I think, the main problem is they are not always the same stations. I have
> heard several different stations in terrestrial QSOs QRMing FO-29; majority
> of them speaking Spanish and without any kind of ID. I have not heard them
> recently, though.
>
> 73!
>
> Hector, CO6CBF/W5CBF
>
> -----Mensaje original-----
> De: AMSAT-BB [mailto:amsat-bb-bounces@xxxxx.xxxx En nombre de Zach Leffke
> Enviado el: Sunday, November 08, 2015 4:54 PM
> Para: amsat-bb@xxxxx.xxx
> Asunto: Re: [amsat-bb] FM signal on FO-29?
>
> well.. when I say students, I meant graduate students at VT that happened to
> be in the lab when I was doing the experiment. They work with me and Bob,
> so a few crude words here and there aren't uncommon to them.
>
> But good point, probably not the best thing for a public demo if your
> audience is a bit younger.
>
> Actually, I've seen so much FM activity (basically every time I've monitored
> FO-29 since we first came online in late september) that I've been toying
> with the idea of trying to locate where the source emitters actually are
> located based on doppler shift data. We know the doppler between the
> receiving ground station and FO-29, so we can back that out. We know the
> transponder mapping, so we can work through that to determine what the
> center frequency is as the signal enters the transponder uplink receiver.
> What we don't know is the uplink doppler, because we don't know where the
> emitter is and we don't know what exact center frequency they are on (but I
> bet you its in 5kHz steps, maybe 2.5kHz). So we have two unknowns. I'm
> betting there's a way to work through it though, and with enough
> observations and by watching the rate of change of the doppler, I bet
> there's a way to make an educated guess on what their center freq and
> location are.
>
> Or if someone listening knows Spanish and/or Portugese, maybe we could get
> lucky and hear what cross streets the taxi is going to (if it is in fact a
> taxi).
>
> -Zach, KJ4QLP
>
>> On 11/08/2015 05:30 PM, Clayton W5PFG wrote:
>> I wouldn't recommend playing the FM audio heard via FO-29 to a group
>> of children. Normally it's not English. It's most likely NOT a
>> religious broadcast based on their choice of crude words.
>>
>> 73
>> Clayton
>> W5PFG
>>
>>> On 11/8/2015 16:13, Zach Leffke wrote:
>>> So yes, in the last couple weeks I've seen a LOT of FM activity on
>>> FO-29. And based on my experience with Friday's pass, which was
>>> ascending, I'm leading towards the Central/South America QRM theory.
>>> Lots of strong FM activity as the pass started and the satellite was
>>> over the lower latitudes, but as FO-29 ascended over higher latitudes
>>> towards the north pole, the FM activity died down.
>>>
>>> -Zach, KJ4QLP
>> _______________________________________________
>> Sent via AMSAT-BB@xxxxx.xxx. AMSAT-NA makes this open forum available
>> to all interested persons worldwide without requiring membership.
>> Opinions expressed
>> are solely those of the author, and do not reflect the official views
>> of AMSAT-NA.
>> Not an AMSAT-NA member? Join now to support the amateur satellite
>> program!
>> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
>
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. AMSAT-NA makes this open forum available to all
> interested persons worldwide without requiring membership. Opinions
> expressed are solely those of the author, and do not reflect the official
> views of AMSAT-NA.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
>
>
>
> ------------------------------
>
> Message: 7
> Date: Sun, 8 Nov 2015 18:40:48 -0500
> From: Zach Leffke <zleffke@xx.xxx>
> To: Hector W5CBF/CO6CBF <kf5yxv@xxxxx.xxx>, amsat-bb@xxxxx.xxx
> Subject: Re: [amsat-bb] FM signal on FO-29?
> Message-ID: <563FDD80.1010702@xx.xxx>
> Content-Type: text/plain; charset=windows-1252; format=flowed
>
> That makes sense Hector. I've seen the FM activity kind of all over the
> transponder. More so than I would expect if it was the same transmitter
> each time on the same frequency and the different pass geometries
> causing a bit of swing due to doppler.
>
>
> -Zach, KJ4QLP
>
>> On 11/08/2015 06:34 PM, Hector W5CBF/CO6CBF wrote:
>> Hi Zach and group
>>
>> I think, the main problem is they are not always the same stations. I have
>> heard several different stations in terrestrial QSOs QRMing FO-29;
majority
>> of them speaking Spanish and without any kind of ID. I have not heard them
>> recently, though.
>>
>> 73!
>>
>> Hector, CO6CBF/W5CBF
>>
>> -----Mensaje original-----
>> De: AMSAT-BB [mailto:amsat-bb-bounces@xxxxx.xxxx En nombre de Zach Leffke
>> Enviado el: Sunday, November 08, 2015 4:54 PM
>> Para: amsat-bb@xxxxx.xxx
>> Asunto: Re: [amsat-bb] FM signal on FO-29?
>>
>> well.. when I say students, I meant graduate students at VT that happened
to
>> be in the lab when I was doing the experiment. They work with me and Bob,
>> so a few crude words here and there aren't uncommon to them.
>>
>> But good point, probably not the best thing for a public demo if your
>> audience is a bit younger.
>>
>> Actually, I've seen so much FM activity (basically every time I've
monitored
>> FO-29 since we first came online in late september) that I've been toying
>> with the idea of trying to locate where the source emitters actually are
>> located based on doppler shift data. We know the doppler between the
>> receiving ground station and FO-29, so we can back that out. We know the
>> transponder mapping, so we can work through that to determine what the
>> center frequency is as the signal enters the transponder uplink receiver.
>> What we don't know is the uplink doppler, because we don't know where the
>> emitter is and we don't know what exact center frequency they are on (but I
>> bet you its in 5kHz steps, maybe 2.5kHz). So we have two unknowns. I'm
>> betting there's a way to work through it though, and with enough
>> observations and by watching the rate of change of the doppler, I bet
>> there's a way to make an educated guess on what their center freq and
>> location are.
>>
>> Or if someone listening knows Spanish and/or Portugese, maybe we could get
>> lucky and hear what cross streets the taxi is going to (if it is in fact a
>> taxi).
>>
>> -Zach, KJ4QLP
>>
>>> On 11/08/2015 05:30 PM, Clayton W5PFG wrote:
>>> I wouldn't recommend playing the FM audio heard via FO-29 to a group
>>> of children. Normally it's not English. It's most likely NOT a
>>> religious broadcast based on their choice of crude words.
>>>
>>> 73
>>> Clayton
>>> W5PFG
>>>
>>>> On 11/8/2015 16:13, Zach Leffke wrote:
>>>> So yes, in the last couple weeks I've seen a LOT of FM activity on
>>>> FO-29. And based on my experience with Friday's pass, which was
>>>> ascending, I'm leading towards the Central/South America QRM theory.
>>>> Lots of strong FM activity as the pass started and the satellite was
>>>> over the lower latitudes, but as FO-29 ascended over higher latitudes
>>>> towards the north pole, the FM activity died down.
>>>>
>>>> -Zach, KJ4QLP
>>> _______________________________________________
>>> Sent via AMSAT-BB@xxxxx.xxx. AMSAT-NA makes this open forum available
>>> to all interested persons worldwide without requiring membership.
>>> Opinions expressed
>>> are solely those of the author, and do not reflect the official views
>>> of AMSAT-NA.
>>> Not an AMSAT-NA member? Join now to support the amateur satellite
>>> program!
>>> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
>> _______________________________________________
>> Sent via AMSAT-BB@xxxxx.xxx. AMSAT-NA makes this open forum available to
all
>> interested persons worldwide without requiring membership. Opinions
>> expressed are solely those of the author, and do not reflect the official
>> views of AMSAT-NA.
>> Not an AMSAT-NA member? Join now to support the amateur satellite program!
>> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
>
>
>
> ------------------------------
>
> Message: 8
> Date: Sun, 8 Nov 2015 18:55:00 -0500
> From: Zach Leffke <zleffke@xx.xxx>
> To: Robert Bruninga <bruninga@xxxx.xxx>
> Cc: amsat bb <amsat-bb@xxxxx.xxx>
> Subject: Re: [amsat-bb] FM signal on FO-29?
> Message-ID: <563FE0D4.5020503@xx.xxx>
> Content-Type: text/plain; charset=utf-8; format=flowed
>
> Good point Bob. I haven't fully worked through the problem yet, but
> thats pretty much right in line with what I'm thinking. Thats what I
> meant by saying watching the 'rate of change of doppler.' When the
> slope of the doppler s-curve is at a maximum, that should be the point
> of closest approach.
>
> Actually, that brings up a question. Do you know what type of equation
> would fit the doppler S-Curve profile? something that could be used to
> generate a regression equation from a few doppler observations?
>
> -Zach, KJ4QLP
>
>
>> On 11/08/2015 06:12 PM, Robert Bruninga wrote:
>> Zach
>> You dont need to know the senders exact freq, just a plot of his freq
>> during the pass will form an "S" curve and once you have enough of the
>> "S", you can know his center freq, and hence his closest point of
>> approach. That gives a line of bearing. Anothe pass gives another
>> one, and so on...
>>
>> bob
>>
>> On Sun, Nov 8, 2015 at 5:54 PM, Zach Leffke <zleffke@xx.xxx
>> <mailto:zleffke@xx.xxx>> wrote:
>>
>> well.. when I say students, I meant graduate students at VT that
>> happened to be in the lab when I was doing the experiment. They
>> work with me and Bob, so a few crude words here and there aren't
>> uncommon to them.
>>
>> But good point, probably not the best thing for a public demo if
>> your audience is a bit younger.
>>
>> Actually, I've seen so much FM activity (basically every time I've
>> monitored FO-29 since we first came online in late september) that
>> I've been toying with the idea of trying to locate where the
>> source emitters actually are located based on doppler shift data.
>> We know the doppler between the receiving ground station and
>> FO-29, so we can back that out. We know the transponder mapping,
>> so we can work through that to determine what the center frequency
>> is as the signal enters the transponder uplink receiver. What we
>> don't know is the uplink doppler, because we don't know where the
>> emitter is and we don't know what exact center frequency they are
>> on (but I bet you its in 5kHz steps, maybe 2.5kHz). So we have
>> two unknowns. I'm betting there's a way to work through it though,
>> and with enough observations and by watching the rate of change of
>> the doppler, I bet there's a way to make an educated guess on what
>> their center freq and location are.
>>
>> Or if someone listening knows Spanish and/or Portugese, maybe we
>> could get lucky and hear what cross streets the taxi is going to
>> (if it is in fact a taxi).
>>
>> -Zach, KJ4QLP
>>
>> On 11/08/2015 05:30 PM, Clayton W5PFG wrote:
>>
>> I wouldn't recommend playing the FM audio heard via FO-29 to a
>> group of children. Normally it's not English. It's most
>> likely NOT a religious broadcast based on their choice of
>> crude words.
>>
>> 73
>> Clayton
>> W5PFG
>>
>> On 11/8/2015 16:13, Zach Leffke wrote:
>>
>> So yes, in the last couple weeks I've seen a LOT of FM
>> activity on
>> FO-29. And based on my experience with Friday's pass,
>> which was
>> ascending, I'm leading towards the Central/South America
>> QRM theory.
>> Lots of strong FM activity as the pass started and the
>> satellite was
>> over the lower latitudes, but as FO-29 ascended over
>> higher latitudes
>> towards the north pole, the FM activity died down.
>>
>> -Zach, KJ4QLP
>>
>> _______________________________________________
>> Sent via AMSAT-BB@xxxxx.xxx <mailto:AMSAT-BB@xxxxx.xxx>.
>> AMSAT-NA makes this open forum available
>> to all interested persons worldwide without requiring
>> membership. Opinions expressed
>> are solely those of the author, and do not reflect the
>> official views of AMSAT-NA.
>> Not an AMSAT-NA member? Join now to support the amateur
>> satellite program!
>> Subscription settings:
>> http://www.amsat.org/mailman/listinfo/amsat-bb
>>
>>
>> _______________________________________________
>> Sent via AMSAT-BB@xxxxx.xxx <mailto:AMSAT-BB@xxxxx.xxx>. AMSAT-NA
>> makes this open forum available
>> to all interested persons worldwide without requiring membership.
>> Opinions expressed
>> are solely those of the author, and do not reflect the official
>> views of AMSAT-NA.
>> Not an AMSAT-NA member? Join now to support the amateur satellite
>> program!
>> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
>
>
>
> ------------------------------
>
> Message: 9
> Date: Mon, 9 Nov 2015 10:21:57 +1000
> From: VK4NBL <vk4nbl@xxxxxxx.xxx>
> To: <amsat-bb@xxxxx.xxx>
> Subject: Re: [amsat-bb] FM signal on FO-29
> Message-ID: <BLU436-SMTP20894C252E8F97C94778D4685150@xxx.xxx>
> Content-Type: text/plain; format=flowed; charset="iso-8859-1";
> reply-type=original
>
>
> With regards to FM signals on FO-29, we can also here them here in
> Australia.
> This is most noticeable when the Sat is travelling South to North.
> When it gets above Northern Queensland all we can hear is Indonesian fishing
> boats on the 2m uplink.
> It does suck the power from the Sat and usually ends some very good QSO's
> long before LOS.
>
> 73
> Peter
> vk4nbl
>
>
>
> ------------------------------
>
> Message: 10
> Date: Sun, 8 Nov 2015 16:30:59 -0800
> From: "Ted" <k7trkradio@xxxxxxx.xxx>
> To: "'Stefan Wagener'" <wageners@xxxxx.xxx>, "'AMSAT BB'"
> <amsat-bb@xxxxx.xxx>
> Subject: Re: [amsat-bb] Frequency chart and satellite information
> -online-
> Message-ID: <000801d11a85$e8322cf0$b89686d0$@xxxxxxx.xxx>
> Content-Type: text/plain; charset="us-ascii"
>
> Good stuff, Stefan...tnx!
> 73, K7trk
>
> -----Original Message-----
> From: AMSAT-BB [mailto:amsat-bb-bounces@xxxxx.xxxx On Behalf Of Stefan
> Wagener
> Sent: Sunday, November 08, 2015 6:12 AM
> To: AMSAT BB
> Subject: [amsat-bb] Frequency chart and satellite information -online-
>
> Hi folks,
>
> Some of the most comprehensive and very frequently updated sources of
> amateur radio satellite information can be found here:
>
> 1. From Mineo Wakita, JE9PEL
>
> http://www.ne.jp/asahi/hamradio/je9pel/satslist.htm
>
> 2. From Mike Rupprecht, DK3WN
>
> http://www.dk3wn.info/satellites.shtml
>
> Bookmarked on my Mac for immediate access :-)
>
> Stefan, VE4NSA
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. AMSAT-NA makes this open forum available to all
> interested persons worldwide without requiring membership. Opinions
> expressed are solely those of the author, and do not reflect the official
> views of AMSAT-NA.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
>
>
>
> ------------------------------
>
> Message: 11
> Date: Sun, 8 Nov 2015 19:46:38 -0500
> From: jeffory broughton <jefforybroughton@xxxxx.xxx>
> To: amsat-bb@xxxxx.xxx
> Subject: [amsat-bb] Fm activity on FO29
> Message-ID:
> <CACm2je12MnYrso645LUPCBvn58vCNsjingQA1DZpy+rgq5KXFg@xxxx.xxxxx.xxx>
> Content-Type: text/plain; charset=UTF-8
>
> A couple weeks ago . fo29 made a pass over canada.I am in michigan and I
> was barely in the footprint when I clearly heard two guys loading trucks on
> the upper end of the transponder .it almost had to be coming from canada.
>
> jeff broughton
>
>
> ------------------------------
>
> Subject: Digest Footer
>
> _______________________________________________
> Sent via amsat-bb@xxxxx.xxx.
> AMSAT-NA makes this open forum available to all interested persons
worldwide without requiring membership. Opinions expressed
> are solely those of the author, and do not reflect the official views of
AMSAT-NA.
> Not an AMSAT member? Join now to support the amateur satellite program!
> http://www.amsat.org/mailman/listinfo/amsat-bb
>
> ------------------------------
>
> End of AMSAT-BB Digest, Vol 10, Issue 346
> *****************************************
------------------------------
Message: 2
Date: Mon, 9 Nov 2015 12:59:31 -0500
From: Zach Leffke <zleffke@xx.xxx>
To: Robert Bruninga <bruninga@xxxx.xxx>
Cc: amsat bb <amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] FM signal on FO-29?
Message-ID: <5640DF03.4080901@xx.xxx>
Content-Type: text/plain; charset=utf-8; format=flowed
No worries, I thought on it a bit more and I think a cubic polynomial is
the right fit. I also found some python tools for regression
calculations that I think will be useful for this. Also, I think this
is pretty similar to how the COSPAS/SARSAT system used to locate lost
ships (EPIRBs) and downed Aircraft (ELTs) before the proliferation of
GPS and its inclusion in the locator beacons.
Concerning the lines of bearing. I'm still churning this one in my
head, but I think basically point of closest approach will give us a
line that is perpendicular to the ground track at that point. That
should be the moment when range rate and thus doppler hits zero. Like
you said take enough measurements over enough orbits and see where the
lines begin to cross. I know there are some more algorithms for this,
like Brown's Least Squares Triangulation Algorithm.
The work flow that's forming in my head is as follows:
1. Measure the signal doppler shift.
2. Work backwards through the transponder to get the uplink doppler as
it enters the receiver (to remove doppler between measuring G/S and FO-29).
3. use regression to get the cubic polynomial S-curve of doppler.
4. Find the inflection point in the S-Curve (the zero crossing) that
gives the instant in time for PCA.
5. Go back to SGPs+TLEs to determine subsatellite point and ground
track at that instant. Which gives us the line of bearing for that orbit.
6. Repeat 1 - 5 over multiple orbits to get multiple lines of bearing.
7. Use triangulation algorithms to determine the likely lat/long of the
emitter as well as the confidence interval (Error elliptical probable).
Things that kill this plan are multiple emitters on different
frequencies. If its a taxi then the emitter is moving around which will
dilute precision in the position estimate. Frequency drifts in the
emitter and spacecraft can introduce errors. Stale TLEs will cause more
errors.
A stretch goal might be to turn this into a Master's Level research
topic for a graduate student, especially when trying to characterize all
the sources of error and how that impacts the final estimate. If we
could develop a working tool that AMSAT could use to locate illegal
emitters, maybe that could provide a body of evidence that could be
taken to say the IARU, to then maybe put pressure on the host countries
to crack down on illegal use of the Amateur bands (likely a pipe dream
to see actual political movement though, or see any real reduction in
the QRM, but one can hope!).
Fun Stuff!
-Zach, KJ4QLP
Research Associate
Ted & Karyn Hume Center for National Security & Technology
Virginia Polytechnic Institute & State University
Work Phone: 540-231-4174
Cell Phone: 540-808-6305
On 11/9/2015 9:54 AM, Robert Bruninga wrote:
>
> No, I?m all talk and no do? compared to whiz kids and Matlab? Im old
> fashioned enough to just plot it on graph paper and LOOK for the
> middle hi hi?
>
> *From:*Zach Leffke [mailto:zleffke@xx.xxx <mailto:zleffke@xx.xxx>]
> *Sent:* Sunday, November 08, 2015 6:55 PM
> *To:* Robert Bruninga
> *Cc:* amsat bb
> *Subject:* Re: [amsat-bb] FM signal on FO-29?
>
> Good point Bob. I haven't fully worked through the problem yet, but
> thats pretty much right in line with what I'm thinking. Thats what I
> meant by saying watching the 'rate of change of doppler.' When the
> slope of the doppler s-curve is at a maximum, that should be the point
> of closest approach.
>
> Actually, that brings up a question. Do you know what type of
> equation would fit the doppler S-Curve profile? something that could
> be used to generate a regression equation from a few doppler observations?
>
> -Zach, KJ4QLP
>
> On 11/08/2015 06:12 PM, Robert Bruninga wrote:
>
> Zach
>
> You dont need to know the senders exact freq, just a plot of his
> freq during the pass will form an "S" curve and once you have
> enough of the "S", you can know his center freq, and hence his
> closest point of approach. That gives a line of bearing. Anothe
> pass gives another one, and so on...
>
> bob
>
> On Sun, Nov 8, 2015 at 5:54 PM, Zach Leffke <zleffke@xx.xxx
> <mailto:zleffke@xx.xxx>> wrote:
>
> well.. when I say students, I meant graduate students at VT that
> happened to be in the lab when I was doing the experiment. They
> work with me and Bob, so a few crude words here and there aren't
> uncommon to them.
>
> But good point, probably not the best thing for a public demo if
> your audience is a bit younger.
>
> Actually, I've seen so much FM activity (basically every time I've
> monitored FO-29 since we first came online in late september) that
> I've been toying with the idea of trying to locate where the
> source emitters actually are located based on doppler shift data.
> We know the doppler between the receiving ground station and
> FO-29, so we can back that out. We know the transponder mapping,
> so we can work through that to determine what the center frequency
> is as the signal enters the transponder uplink receiver. What we
> don't know is the uplink doppler, because we don't know where the
> emitter is and we don't know what exact center frequency they are
> on (but I bet you its in 5kHz steps, maybe 2.5kHz). So we have
> two unknowns. I'm betting there's a way to work through it
> though, and with enough observations and by watching the rate of
> change of the doppler, I bet there's a way to make an educated
> guess on what their center freq and location are.
>
> Or if someone listening knows Spanish and/or Portugese, maybe we
> could get lucky and hear what cross streets the taxi is going to
> (if it is in fact a taxi).
>
> -Zach, KJ4QLP
>
> On 11/08/2015 05:30 PM, Clayton W5PFG wrote:
>
> I wouldn't recommend playing the FM audio heard via FO-29 to a
> group of children. Normally it's not English. It's most likely NOT
> a religious broadcast based on their choice of crude words.
>
> 73
> Clayton
> W5PFG
>
> On 11/8/2015 16:13, Zach Leffke wrote:
>
> So yes, in the last couple weeks I've seen a LOT of FM activity on
> FO-29. And based on my experience with Friday's pass, which was
> ascending, I'm leading towards the Central/South America QRM theory.
> Lots of strong FM activity as the pass started and the satellite was
> over the lower latitudes, but as FO-29 ascended over higher latitudes
> towards the north pole, the FM activity died down.
>
> -Zach, KJ4QLP
>
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx <mailto:AMSAT-BB@xxxxx.xxx>. AMSAT-NA
> makes this open forum available
> to all interested persons worldwide without requiring membership.
> Opinions expressed
> are solely those of the author, and do not reflect the official
> views of AMSAT-NA.
> Not an AMSAT-NA member? Join now to support the amateur satellite
> program!
> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
>
>
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx <mailto:AMSAT-BB@xxxxx.xxx>. AMSAT-NA
> makes this open forum available
> to all interested persons worldwide without requiring membership.
> Opinions expressed
> are solely those of the author, and do not reflect the official
> views of AMSAT-NA.
> Not an AMSAT-NA member? Join now to support the amateur satellite
> program!
> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
>
------------------------------
Message: 3
Date: Mon, 9 Nov 2015 13:35:40 -0500
From: AJ9N@xxx.xxx
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Upcoming ARISS Contact Schedule as of 2015-11-09
19:00 UTC
Message-ID: <9faf4.3fd9b077.4372417b@xxx.xxx>
Content-Type: text/plain; charset="ISO-8859-1"
Upcoming ARISS Contact Schedule as of 2015-11-09 19:00 UTC
Quick list of scheduled contacts and events:
BORG Monsbergergasse, Graz, Austria, direct via OE?ARISS
The ISS callsign is presently scheduled to be OR4ISS
The scheduled astronaut is Kjell Lindgren KO5MOS
Contact was successful: Mon 2015-11-09 09:42:15 UTC 49 deg (***)
Ste. Genevieve du Bois Catholic Elementary School, Warson Woods, Missouri,
direct via N?KBA
The ISS callsign is presently scheduled to be NA1SS
The scheduled astronaut is Kjell Lindgren KO5MOS
The contact is a go for: Thu 2015-11-12 16:25:16 UTC 55 deg
****************************************************************************
**
>From 2015-12-20 to 2016-01-04, there will be no US Operational Segment
(USOS)
hams on board ISS. So any schools contacts during this period will be
conducted by the ARISS Russia team.
****************************************************************************
ARISS is always glad to receive listener reports for the above contacts.
ARISS thanks everyone in advance for their assistance. Feel free to send
your reports to aj9n@xxxxx.xxx or aj9n@xxx.xxx.
****************************************************************************
Several of you have sent me emails asking about the RAC ARISS website and
not being able to get in. That has now been changed to
http://www.ariss.org/
Note that there are links to other ARISS websites from this site.
****************************************************************************
Looking for something new to do? How about receiving DATV from the ISS?
If interested, then please go to the ARISS-EU website for complete
details. Look for the buttons indicating Ham Video.
http://www.ariss-eu.org/
If you need some assistance, ARISS mentor Kerry N6IZW, might be able to
provide some insight. Contact Kerry at kbanke@xxxxxxxxx.xxx
****************************************************************************
ARISS congratulations the following mentors who have now mentored over 100
schools:
Gaston ON4WF with 121
Francesco IK?WGF with 114
Satoshi 7M3TJZ with 112
****************************************************************************
The webpages listed below were all reviewed for accuracy. Out of date
webpages were removed and new ones have been added. If there are
additional
ARISS websites I need to know about, please let me know.
Note, all times are approximate. It is recommended that you do your own
orbital prediction or start listening about 10 minutes before the listed
time.
All dates and times listed follow International Standard ISO 8061 date
and
time format YYYY-MM-DD HH:MM:SS
The complete schedule page has been updated as of 2015-11-09 19:00 UTC.
(***)
Here you will find a listing of all scheduled school contacts, and
questions, other ISS related websites, IRLP and Echolink websites, and
instructions for any contact that may be streamed live.
http://www.amsat.org/amsat/ariss/news/arissnews.rtf
Total number of ARISS ISS to earth school events is 1007. (***)
Each school counts as 1 event.
Total number of ARISS ISS to earth school contacts is 972. (***)
Each contact may have multiple schools sharing the same time slot.
Total number of ARISS supported terrestrial contacts is 46.
A complete year by year breakdown of the contacts may be found in the
file.
http://www.amsat.org/amsat/ariss/news/arissnews.rtf
Please feel free to contact me if more detailed statistics are needed.
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
The following US states and entities have never had an ARISS contact:
Arkansas, Delaware, North Dakota, Rhode Island, South Dakota, Vermont,
Wyoming, American Samoa, Guam, Northern Marianas Islands, and the Virgin
Islands.
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
QSL information may be found at:
http://www.ariss.org/qsl-cards.html
ISS callsigns: DP?ISS, IR?ISS, NA1SS, OR4ISS, RS?ISS
****************************************************************************
The successful school list has been updated as of 2015-11-09 19:00 UTC.
(***)
http://www.amsat.org/amsat/ariss/news/Successful_ARISS_schools.rtf
Frequency chart for packet, voice, and crossband repeater modes showing
Doppler correction as of 2005-07-29 04:00 UTC
http://www.amsat.org/amsat/ariss/news/ISS_frequencies_and_Doppler_correction
.rtf
Listing of ARISS related magazine articles as of 2006-07-10 03:30 UTC.
http://www.amsat.org/amsat/ariss/news/ARISS_magazine_articles.rtf
Check out the Zoho reports of the ARISS contacts
https://reports.zoho.com/ZDBDataSheetView.cc?DBID=412218000000020415
****************************************************************************
Exp. 43/44 on orbit
Scott Kelly
Mikhail Kornienko RN3BF
Exp. 44 on orbit
Oleg Kononenko RN3DX
Kimiya Yui KG5BPH
Kjell Lindgren KO5MOS
Exp. 45 on orbit
Sergey Volkov RU3DIS
****************************************************************************
73,
Charlie Sufana AJ9N
One of the ARISS operation team mentors
------------------------------
Message: 4
Date: Mon, 9 Nov 2015 19:16:42 -0000
From: <alancresswell@xxxx.xx.xx>
To: "AMSAT-BB" <amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] AO-85 Testing November 8 and 9
Message-ID: <5E2C7101606047E89E91998406543C94@xxxxxxxxxx>
Content-Type: text/plain; format=flowed; charset="utf-8";
reply-type=original
AO-85 Orbit 461
No telemetry, No tone required for access. Excellent signal from the
transponder on the 1855 UT 15 deg pass over ZL this morning.
Alan
ZL2BX
------------------------------
Subject: Digest Footer
_______________________________________________
Sent via amsat-bb@xxxxx.xxx.
AMSAT-NA makes this open forum available to all interested persons worldwide
without requiring membership. Opinions expressed
are solely those of the author, and do not reflect the official views of
AMSAT-NA.
Not an AMSAT member? Join now to support the amateur satellite program!
http://www.amsat.org/mailman/listinfo/amsat-bb
------------------------------
End of AMSAT-BB Digest, Vol 10, Issue 349
*****************************************
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