| |
CX2SA > SATDIG 29.12.16 21:30l 860 Lines 25252 Bytes #999 (0) @ WW
BID : AMSATBB11407
Read: GUEST
Subj: AMSAT-BB-digest V11 407
Path: IW8PGT<CX2SA
Sent: 161229/1919Z @:CX2SA.SAL.URY.SOAM #:61227 [Salto] FBB7.00e $:AMSATBB11407
From: CX2SA@CX2SA.SAL.URY.SOAM
To : SATDIG@WW
Today's Topics:
1. Re: BY 70-1 operable (Greg D)
2. BY70-1 over GG54 (PY5LF)
3. Re: BY 70-1 operable (Greg D)
4. BY70-1 identified (Nico Janssen)
5. Excellent BY70-1 Pass Just Now (Andy)
6. Re: BY70-1 identified (Pedro Converso)
7. Mode B operating question... (Chad Phillips)
8. Re: Mode B operating question... (Paul Stoetzer)
9. Re: Mode B operating question... (Chad Phillips)
10. BY70-1 (KO6TZ Bob)
11. BY70-1 with an HT (Matthew Stevens)
12. Re: Mode B operating question... (Devin L. Ganger)
13. FW: Mode B operating question... (Ray Hoad)
----------------------------------------------------------------------
Message: 1
Date: Wed, 28 Dec 2016 12:29:49 -0800
From: Greg D <ko6th.greg@xxxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: Re: [amsat-bb] BY 70-1 operable
Message-ID: <586420BD.7080707@xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
Weak pass, as expected. But I did hear myself towards the very end of
the pass. Downlink seemed to be about 2 khz low, but hard to know for
sure. I tried moving the transmit side a bit, but no real conclusion
there on what works best. Maybe a khz or so low there too.
Next pass is late tonight, if I remember.
Greg KO6TH
Greg D wrote:
> Ok, found the frequencies: 436.200 up, 145.920 down, per Wakita-san's
> website (http://www.ne.jp/asahi/hamradio/je9pel/by70ca45.htm).
>
> Have Gpredict programmed and ready to go. Will try for a
> fully-automated pass. Fingers crossed.
>
> Greg KO6TH
>
>
> Greg D wrote:
>> The PL tone use was per Jari OH2FQV. Interesting that you heard me more
>> than once; I only heard my downlink the one time (announced call, and
>> then grid square after a slight surprise-induced pause).
>>
>> What are the base (non-doppler adjusted) frequencies?
>>
>> Greg KO6TH
>>
>>
>> KO6TZ Bob wrote:
>>> Greg,
>>>
>>> I heard you more than once. I didn't think to use a PL tone.
>>>
>>> Bob
>>> KO6TZ
>>>
>>>
>>>
>>> Hi all,
>>>
>>> I just had a nice 60 degree pass over CM98, and using the tracking info
>>> from http://amsat.org.ar/pass.htm# I was able to throw my call sign
>>> through the satellite, but only once. There is about a half-second
>>> delay on the Receive side, but it's not at all a problem.
>>>
>>> The success was just a bit after TCA. I did have the 67 hz tone enabled
>>> throughout the pass, manual tuning of Tx and Rx, per the info from the
>>> website (thanks Pedro!). Very clear audio on the downlink, nice and
>>> strong. But I couldn't do it again. Just the one transmit / receive
>>> event. No other traffic heard, though there might have been some weak
>>> stuff earlier in the pass while I was tuning around.
>>>
>>> Next pass is very low to the north west, but may give it a try.
>>>
>>> Greg KO6TH
>>>
>>> _______________________________________________
>>> 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: Thu, 29 Dec 2016 02:45:23 -0200
From: PY5LF <py5lf@xxxxxxxxxxxxx.xxx.xx>
To: AMSAT-BB <AMSAT-BB@xxxxx.xxx>
Subject: [amsat-bb] BY70-1 over GG54
Message-ID:
<CAAy53m6q-XuNFuoOfqBV8pq9Jxsu9jfkmJerwALebQM0mEOH2Q@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
Very nice pass of BY70 over here .
https://youtu.be/3nM_2KtMQnE
The audio is very nice , with a little delay .
73
------------------------------
Message: 3
Date: Wed, 28 Dec 2016 22:58:50 -0800
From: Greg D <ko6th.greg@xxxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: Re: [amsat-bb] BY 70-1 operable
Message-ID: <5864B42A.5090903@xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
The 06:34 UTC pass was much better. Heard myself with full quieting
through the second half of the pass, down to about 2 degrees. Oddly,
not able to get in during the first half... No idea why. Base
frequencies used (plus Doppler) and Keps for 2016-083A as picked up from
Celestrak this morning.
Didn't hear anybody else.
One other thing I've noticed is a very strong signal that swept upwards
through the downlink passband during the pass. Heard it last time too.
It didn't seem to have a specific carrier (sounded like a full quieting
signal on both SSB and FM mode). Didn't seem digital (no buzzing, not
GMSK), but was definitely wide banded. Never heard anything like it
before. What else was launched with this bird that might also be using
the 2m ham band for a downlink?
Greg KO6TH
Greg D wrote:
> Weak pass, as expected. But I did hear myself towards the very end of
> the pass. Downlink seemed to be about 2 khz low, but hard to know for
> sure. I tried moving the transmit side a bit, but no real conclusion
> there on what works best. Maybe a khz or so low there too.
>
> Next pass is late tonight, if I remember.
>
> Greg KO6TH
>
>
> Greg D wrote:
>> Ok, found the frequencies: 436.200 up, 145.920 down, per Wakita-san's
>> website (http://www.ne.jp/asahi/hamradio/je9pel/by70ca45.htm).
>>
>> Have Gpredict programmed and ready to go. Will try for a
>> fully-automated pass. Fingers crossed.
>>
>> Greg KO6TH
>>
>>
>> Greg D wrote:
>>> The PL tone use was per Jari OH2FQV. Interesting that you heard me more
>>> than once; I only heard my downlink the one time (announced call, and
>>> then grid square after a slight surprise-induced pause).
>>>
>>> What are the base (non-doppler adjusted) frequencies?
>>>
>>> Greg KO6TH
>>>
>>>
>>> KO6TZ Bob wrote:
>>>> Greg,
>>>>
>>>> I heard you more than once. I didn't think to use a PL tone.
>>>>
>>>> Bob
>>>> KO6TZ
>>>>
>>>>
>>>>
>>>> Hi all,
>>>>
>>>> I just had a nice 60 degree pass over CM98, and using the tracking info
>>>> from http://amsat.org.ar/pass.htm# I was able to throw my call sign
>>>> through the satellite, but only once. There is about a half-second
>>>> delay on the Receive side, but it's not at all a problem.
>>>>
>>>> The success was just a bit after TCA. I did have the 67 hz tone enabled
>>>> throughout the pass, manual tuning of Tx and Rx, per the info from the
>>>> website (thanks Pedro!). Very clear audio on the downlink, nice and
>>>> strong. But I couldn't do it again. Just the one transmit / receive
>>>> event. No other traffic heard, though there might have been some weak
>>>> stuff earlier in the pass while I was tuning around.
>>>>
>>>> Next pass is very low to the north west, but may give it a try.
>>>>
>>>> Greg KO6TH
>>>>
>>>> _______________________________________________
>>>> 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: Thu, 29 Dec 2016 14:00:00 +0100
From: Nico Janssen <hamsat@xxxxxx.xx>
To: amsat-bb@xxxxx.xxxx Ray Hoad <ray.hoad@xxxxxxxx.xxx>
Subject: [amsat-bb] BY70-1 identified
Message-ID: <ff115110-f4b8-8daf-bac7-e033dc2f0b5b@xxxxxx.xx>
Content-Type: text/plain; charset=utf-8; format=flowed
All,
Detailed doppler measurements show that BY70-1 is object 41909,
2016-083C.
The latest TLEs show that its perigee is now 216 km and its
apogee 520 km.
73,
Nico PA0DLO
------------------------------
Message: 5
Date: Wed, 28 Dec 2016 23:11:12 -0600
From: "Andy" <w5acm@xxxxxx.xxx>
To: <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Excellent BY70-1 Pass Just Now
Message-ID: <004801d26191$f9e03ba0$eda0b2e0$@xxxxxx.xxx>
Content-Type: text/plain; charset="us-ascii"
Nice signals and good QSOs with NP4JV and AC0RA via BY70-1.
Using Keps for 2016-083A.
Uplink on 145.920 with 67 Hz tone.
Downlink on 436.200.
C U on BY70-1 soon!
Andy W5ACM
------------------------------
Message: 6
Date: Thu, 29 Dec 2016 12:36:34 -0300
From: Pedro Converso <pconver@xxxxx.xxx>
To: Nico Janssen <hamsat@xxxxxx.xx>
Cc: AMSAT <amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] BY70-1 identified
Message-ID:
<CANTZqKnNU3s7M3CTYtwP2+Uf-Wbv4SNfVrDw8EcDzCNG+Mzayg@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
Thanks! Nico, PA0DLO, for identifying BY70-1 TLEs.
Accordingly http://amsat.org.ar/pass.htm &
http://amsat.org.ar/pass,exe had been updated to use 2016-03C
Obj.41909 for tracking.
Congratulations to all that succeded using this amazing and short
living bird and to Wei MingChuan BG2BHC and team to provide this
excellebt facility for ham radio satellite fan amateurs,
73, lu7abf, Pedro
On Thu, Dec 29, 2016 at 10:00 AM, Nico Janssen <hamsat@xxxxxx.xx> wrote:
> All,
>
> Detailed doppler measurements show that BY70-1 is object 41909,
> 2016-083C.
>
> The latest TLEs show that its perigee is now 216 km and its
> apogee 520 km.
>
> 73,
> Nico PA0DLO
>
>
> _______________________________________________
> 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: Thu, 29 Dec 2016 10:10:01 -0600
From: Chad Phillips <chad.kg0mw@xxxxx.xxx>
To: Amsat BB <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Mode B operating question...
Message-ID: <E4764172-DC4F-46FD-9E76-720328F04E53@xxxxx.xxx>
Content-Type: text/plain; charset=utf-8
I first got on the sats back on AO-13. Seem to me back then when we operated
linear satellites (FO-29, RS?s etc) we found ourselves on the receive
passband and as the doppler changed we adjusted our transmit freq to make
sure we stayed on the receive frequency.
Of course things have changed since then and many use some sort of satellite
tracking software to control the doppler adjustments on the radio. But when
you are operating portable what is the proper procedure on the linear sats?
Thanks,
Chad
kg0mw/en13
------------------------------
Message: 8
Date: Thu, 29 Dec 2016 16:37:56 +0000
From: Paul Stoetzer <n8hm@xxxx.xxx>
To: Amsat BB <amsat-bb@xxxxx.xxx>, Chad Phillips
<chad.kg0mw@xxxxx.xxx>
Subject: Re: [amsat-bb] Mode B operating question...
Message-ID:
<CABzOSOptAm1aXJTQfXjH-iynifpybms8FZ28eRNL-zHVTfUipA@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
Always tune the highest of the tune frequencies.
On Mode B, tune your transmitter and maintain a constant downlink and on
Mode J, tune your receiver and maintain a constant uplink.
This keeps you from drifting too far and possibly into QSOs of people using
computer control.
Much to my dismay, some literature, including the most recent edition of
the ARRL Operating Manual still include the outdated suggestion to always
tune your transmitter.
73,
Paul, N8HM
On Thu, Dec 29, 2016 at 11:10 Chad Phillips <chad.kg0mw@xxxxx.xxx> wrote:
> I first got on the sats back on AO-13. Seem to me back then when we
> operated linear satellites (FO-29, RS?s etc) we found ourselves on the
> receive passband and as the doppler changed we adjusted our transmit freq
> to make sure we stayed on the receive frequency.
>
>
>
> Of course things have changed since then and many use some sort of
> satellite tracking software to control the doppler adjustments on the
> radio. But when you are operating portable what is the proper procedure on
> the linear sats?
>
>
>
> Thanks,
>
>
>
> Chad
>
> kg0mw/en13
>
>
>
>
>
> _______________________________________________
>
> 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: 9
Date: Thu, 29 Dec 2016 10:59:20 -0600
From: Chad Phillips <chad.kg0mw@xxxxx.xxx>
To: Paul Stoetzer <n8hm@xxxx.xxx>
Cc: Amsat BB <amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] Mode B operating question...
Message-ID: <8CAF3E2F-5D80-4880-BEF9-FE1E27A5F691@xxxxx.xxx>
Content-Type: text/plain; charset=utf-8
Thanks guys. That is why I am asking. After this past weekend of operating
and a few conversations I noticed something wasn't right. Makes total sense
to adjust the higher frequency.
Keep learning every day and every pass!
Chad
Sent from my iPhone
> On Dec 29, 2016, at 10:37 AM, Paul Stoetzer <n8hm@xxxx.xxx> wrote:
>
> Always tune the highest of the tune frequencies.
>
> On Mode B, tune your transmitter and maintain a constant downlink and on
Mode J, tune your receiver and maintain a constant uplink.
>
> This keeps you from drifting too far and possibly into QSOs of people
using computer control.
>
> Much to my dismay, some literature, including the most recent edition of
the ARRL Operating Manual still include the outdated suggestion to always
tune your transmitter.
>
> 73,
>
> Paul, N8HM
>
>> On Thu, Dec 29, 2016 at 11:10 Chad Phillips <chad.kg0mw@xxxxx.xxx> wrote:
>> I first got on the sats back on AO-13. Seem to me back then when we
operated linear satellites (FO-29, RS?s etc) we found ourselves on the
receive passband and as the doppler changed we adjusted our transmit freq to
make sure we stayed on the receive frequency.
>>
>>
>>
>> Of course things have changed since then and many use some sort of
satellite tracking software to control the doppler adjustments on the radio.
But when you are operating portable what is the proper procedure on the
linear sats?
>>
>>
>>
>> Thanks,
>>
>>
>>
>> Chad
>>
>> kg0mw/en13
>>
>>
>>
>>
>>
>> _______________________________________________
>>
>> 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: 10
Date: Thu, 29 Dec 2016 10:25:19 -0800
From: KO6TZ Bob <my.callsign@xxxxxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] BY70-1
Message-ID: <e0adb8d7-a9e4-248c-408e-2642e2c87b55@xxxxxxx.xxx>
Content-Type: text/plain; charset=utf-8; format=flowed
Worked BY70-1 on the 1745utc pass over USA. The published frequencies
are correct, and there is a 67.0Hz PL tone..
Very nice satellite, Thank you to the Chinese team.
?????????????
KO6TZ
Bob
------------------------------
Message: 11
Date: Thu, 29 Dec 2016 13:35:34 -0500
From: Matthew Stevens <matthew@xxxxxxxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] BY70-1 with an HT
Message-ID: <06CA25D8-57BA-402D-80B6-51ED0B2F66A0@xxxxxxxxx.xxx>
Content-Type: text/plain; charset=utf-8
I worked N8HM, AC0RA, AA5PK, and XE2AT on a 75? pass earlier this morning,
using 5w from a D72A HT and an Arrow antenna. Because of the 5khz tuning
steps on the HT, it was a little tough getting in except for a short window
+/- about 1 minute before and after TCA due to uplink Doppler shift. I could
key the transponder earlier/later in the pass, but my audio was pretty poor
except during that brief window around TCA.
On the same pass I heard KI4RO work several stations, and also last evening
W4FS, both who were using HTs and handheld antennas. So, it's definitely
possible with low power from an HT. I'll be experimenting some more on
upcoming passes to see just what is possible with basic equipment.
73,
- Matthew KK4FEM
Sent from my iPhone
------------------------------
Message: 12
Date: Thu, 29 Dec 2016 18:07:05 +0000
From: "Devin L. Ganger" <devin@xxxxxxxx.xxx>
To: Chad Phillips <chad.kg0mw@xxxxx.xxx>, Paul Stoetzer
<n8hm@xxxx.xxx>
Cc: Amsat BB <amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] Mode B operating question...
Message-ID:
<DM5PR01MB2442C0DE1B782AE4C8756892CA6B0@xxxxxxxxxxxxx.xxxx.xxxxxxxxxxxx.xxx>
Content-Type: text/plain; charset="Windows-1252"
Hope nobody minds a newby breaking in.
What is the theory behind changing the higher frequency, or is it just an
operating convention?
Also, what is a good beginning HT to use to work the sats? I have a little
Baofeng UV5R variant. My family got me the Elk dual-band log periodic
antenna so that is good, but am I screwed with the radio?
Devin Ganger (WA7DLG)
Sent from my Windows 10 phone
From: Chad Phillips<mailto:chad.kg0mw@xxxxx.xxx>
Sent: Thursday, December 29, 2016 8:59 AM
To: Paul Stoetzer<mailto:n8hm@xxxx.xxx>
Cc: Amsat BB<mailto:amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] Mode B operating question...
Thanks guys. That is why I am asking. After this past weekend of operating
and a few conversations I noticed something wasn't right. Makes total sense
to adjust the higher frequency.
Keep learning every day and every pass!
Chad
Sent from my iPhone
> On Dec 29, 2016, at 10:37 AM, Paul Stoetzer <n8hm@xxxx.xxx> wrote:
>
> Always tune the highest of the tune frequencies.
>
> On Mode B, tune your transmitter and maintain a constant downlink and on
Mode J, tune your receiver and maintain a constant uplink.
>
> This keeps you from drifting too far and possibly into QSOs of people
using computer control.
>
> Much to my dismay, some literature, including the most recent edition of
the ARRL Operating Manual still include the outdated suggestion to always
tune your transmitter.
>
> 73,
>
> Paul, N8HM
>
>> On Thu, Dec 29, 2016 at 11:10 Chad Phillips <chad.kg0mw@xxxxx.xxx> wrote:
>> I first got on the sats back on AO-13. Seem to me back then when we
operated linear satellites (FO-29, RS?s etc) we found ourselves on the
receive passband and as the doppler changed we adjusted our transmit freq to
make sure we stayed on the receive frequency.
>>
>>
>>
>> Of course things have changed since then and many use some sort of
satellite tracking software to control the doppler adjustments on the radio.
But when you are operating portable what is the proper procedure on the
linear sats?
>>
>>
>>
>> Thanks,
>>
>>
>>
>> Chad
>>
>> kg0mw/en13
>>
>>
>>
>>
>>
>> _______________________________________________
>>
>> 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: 13
Date: Thu, 29 Dec 2016 13:17:20 -0600
From: "Ray Hoad" <ray.hoad@xxxxxxxx.xxx>
To: "'amsat-bb'" <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] FW: Mode B operating question...
Message-ID: <002e01d26208$2fcd9bb0$8f68d310$@xxxxxxxx.xxx>
Content-Type: text/plain; charset="us-ascii"
Opps. I should have sent this via AMSAT-BB.
Raymond Hoad
WA5QGD
-----Original Message-----
From: Ray Hoad [mailto:ray.hoad@xxxxxxxx.xxxx
Sent: Thursday, December 29, 2016 13:15
To: 'Devin L. Ganger' <devin@xxxxxxxx.xxx>
Subject: RE: [amsat-bb] Mode B operating question...
If you move the higher frequency you will remove more of the Doppler shift.
Doppler shift is proportional to frequency, so the higher frequency is
responsible for more of the Doppler shift.
A good place to start is on the AMSAT website. Go to www.amsat.org and click
on "Satellite Info" > "Station and Operating Hints". Go to the bottom of
the page and read "The One True Rule for Doppler Tuning" by Paul Williamson,
KB5MU. Paragraph 10 contains the answer to your question. Then read
"Bringing the One True Rule of Doppler Tuning into the 21st Century by Alan
Biddle, WA4SCA. These are two very good articles on a complex subject.
Ray Hoad
WA5QGD
Orbital Elements Manager
-----Original Message-----
From: AMSAT-BB [mailto:amsat-bb-bounces@xxxxx.xxxx On Behalf Of Devin L.
Ganger
Sent: Thursday, December 29, 2016 12:07
To: Chad Phillips <chad.kg0mw@xxxxx.xxx>; Paul Stoetzer <n8hm@xxxx.xxx>
Cc: Amsat BB <amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] Mode B operating question...
Hope nobody minds a newby breaking in.
What is the theory behind changing the higher frequency, or is it just an
operating convention?
Also, what is a good beginning HT to use to work the sats? I have a little
Baofeng UV5R variant. My family got me the Elk dual-band log periodic
antenna so that is good, but am I screwed with the radio?
Devin Ganger (WA7DLG)
Sent from my Windows 10 phone
From: Chad Phillips<mailto:chad.kg0mw@xxxxx.xxx>
Sent: Thursday, December 29, 2016 8:59 AM
To: Paul Stoetzer<mailto:n8hm@xxxx.xxx>
Cc: Amsat BB<mailto:amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] Mode B operating question...
Thanks guys. That is why I am asking. After this past weekend of operating
and a few conversations I noticed something wasn't right. Makes total sense
to adjust the higher frequency.
Keep learning every day and every pass!
Chad
Sent from my iPhone
> On Dec 29, 2016, at 10:37 AM, Paul Stoetzer <n8hm@xxxx.xxx> wrote:
>
> Always tune the highest of the tune frequencies.
>
> On Mode B, tune your transmitter and maintain a constant downlink and on
Mode J, tune your receiver and maintain a constant uplink.
>
> This keeps you from drifting too far and possibly into QSOs of people
using computer control.
>
> Much to my dismay, some literature, including the most recent edition of
the ARRL Operating Manual still include the outdated suggestion to always
tune your transmitter.
>
> 73,
>
> Paul, N8HM
>
>> On Thu, Dec 29, 2016 at 11:10 Chad Phillips <chad.kg0mw@xxxxx.xxx> wrote:
>> I first got on the sats back on AO-13. Seem to me back then when we
operated linear satellites (FO-29, RS's etc) we found ourselves on the
receive passband and as the doppler changed we adjusted our transmit freq to
make sure we stayed on the receive frequency.
>>
>>
>>
>> Of course things have changed since then and many use some sort of
satellite tracking software to control the doppler adjustments on the radio.
But when you are operating portable what is the proper procedure on the
linear sats?
>>
>>
>>
>> Thanks,
>>
>>
>>
>> Chad
>>
>> kg0mw/en13
>>
>>
>>
>>
>>
>> _______________________________________________
>>
>> 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
_______________________________________________
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
------------------------------
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 11, Issue 407
*****************************************
Read previous mail | Read next mail
| |
