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CX2SA > SATDIG 10.04.16 23:25l 761 Lines 29874 Bytes #999 (0) @ WW
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Today's Topics:
1. STATIONS WITH DISTORTED AUDIO ON AO-85 (jeffory broughton)
2. Re: Satellite Connection (Rupert Hamblin)
3. Re: Link budgets for upcoming HEO/GEO sats (John Toscano)
4. Will this antenna work for the potential new GEO sat? (John Brier)
5. Re: Link budgets for upcoming HEO/GEO sats (John Toscano)
6. AO-7 MODE A AGAIN TODAY ! (jeffory broughton)
7. Re: AO-7 MODE A AGAIN TODAY ! (Joe)
8. Re: STATIONS WITH DISTORTED AUDIO ON AO-85 (Clayton W5PFG)
9. Re: Will this antenna work for the potential new GEO sat?
(Daniel Cussen)
10. FUNcube-1 (Graham Shirville)
----------------------------------------------------------------------
Message: 1
Date: Sun, 10 Apr 2016 10:22:27 -0400
From: jeffory broughton <jefforybroughton@xxxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] STATIONS WITH DISTORTED AUDIO ON AO-85
Message-ID:
<CACm2je2P6VHJCEQpJWDXOmC5Ohm-yYGTebi38AQLBEPyJ_2Nfg@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
I hear many stations with grossly distorted uplink audio on AO-85.
A- Be sure your keps are up to date.
B- use the newest doppler.sqf files
C- use N.B. tx ,if your rig does not have
It,back off the mic and reduce the mic gain while monitoring your down link
for clean audio.
D- it is possible to have crystal clear audio on AO-85 with a little fine
tuning.
Jeff ,WB8RJY
jeff broughton
------------------------------
Message: 2
Date: Sun, 10 Apr 2016 16:09:05 +0100
From: Rupert Hamblin <rupert.hamblin@xxxxx.xxx>
To: Greg <gjd1958@xxxxxxx.xxx>, John Brier <johnbrier@xxxxx.xxx>
Cc: AMSAT BB <amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] Satellite Connection
Message-ID: <570A6C91.5090000@xxxxx.xxx>
Content-Type: text/plain; charset=windows-1252; format=flowed
Hi All,
Thought I would update on my current situation, having been through a
few "hoops" to get to where I am now !
So the bottom line is, thankfully, I am now active on the SATS and have
nearly a dozen QSO's in the log..!
Following up the comments below, I did a number of things to the
stations to finally get working, these included,
setting the correct CTCSS tones on the 847, realigning the azimuth on
the rotator, it was around 20 degress out - all
of which helped....but the biggest impact was the 847, its been in for
repair under warrenty twice now, thankfully,
so far all looks ok now. Two issues were identified:
Frequency and control error on VHF/UHF bands, a couple of chips were
replaced, and the killer one was, whenever I
switched to SAT mode, the TX output would drop to nearly zero on UHF,
whilst on VHF power was also reduced and
the CTCSS tones were corrupted.....apparently from the dealer repair I
was told both issues were known problems.
Thankfully, all now resolved - and up and running....!
As I finally get my head round the station / Doppler / SatPC32, I may
post a couple more queries....thanks for your
tips and advice here...!
Cheers RH / G0TKZ
On 17/03/2016 20:32, Greg wrote:
> Good point re: SO-50.
>
> G
> MVF
>
>
> On Mar 17, 2016, at 4:23 PM, John Brier <johnbrier@xxxxx.xxx> wrote:
>
> If he can hear the FM sat SO-50 he shouldn't have to worry about doppler.
He doesn't have to find himself like on an SSB sat's passband.
>
> Rupert, can you get into terrestrial repeaters? Verify in a simple way
that transmit works.
>
> On Mar 17, 2016 4:14 PM, "Greg" <gjd1958@xxxxxxx.xxx> wrote:
> Are you having issues adjusting for Doppler?
>
> greg
> N3MVF
>
>
> On Mar 17, 2016, at 3:16 PM, Rupert Hamblin <rupert.hamblin@xxxxx.xxx>
wrote:
>
> Hi All,
>
> Would be grateful for any advice or your thoughts on the following...!
>
> Ok, so I have my station virtually completed now. I have the rotator setup
correctly
> and with the LVB Tracker interface unit and SatPC32 now tracking SATs
correctly (it appears).
> I have a 4 ELE (2M) and 9 ELE (70cm) on the rotator.
>
> I can receive very good copy of downlinks from quite low passes on both 2M
& 70CM,
> and I have recently had the FT-847 lab repaired and tested on output -
which I know are
> working ok.
>
> The problem I have is - whichever satellite i try to work, low pass / high
pass, SSB or FM, high power
> or low power - I am unable to hear my own signal on the downlink and hence
so far have no QSO's
> ....Any suggestions or clues as to what I may be doing wrong or have setup
incorrectly...?
>
> Would appreciate any clues / tips here ! :-)
>
> Cheers
>
> RH / G0TKZ
>
>
> _______________________________________________
> 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, 10 Apr 2016 12:39:21 -0500
From: John Toscano <tosca005@xxx.xxx>
To: Jim Barbre <jbarbre@xxxxxxxx.xxx>
Cc: AMSAT BB <AMSAT-BB@xxxxx.xxx>
Subject: Re: [amsat-bb] Link budgets for upcoming HEO/GEO sats
Message-ID:
<CABGf72r_fcc6csrqDjp1aeNeh6hn8+pice0w6sen5wc5X2F8hg@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
Information is hard to come by, so I will test my own to know for sure,
once they arrive. I did find one web site listing specs for a visually
identical unit:
Specification:
Model Number: TXPA58002W5
MAX input power: 600mW/27.8dBm
Frequency Band: 5-6 GHz
Power Supply Voltage: 12-16V
Cooling mode: active magnetic fan
Lithium battery: 3S 4S
Weight: 50 g
Power dissipation: 20W
Box Size (L * W * H) : 10 * 10 * 4 cm
Battery operating time reference:
3S 2200mAh 30 minutes
4S 5200mAh 90 minutes
Output connector type: RP-SMA jack
Input connector type: RP-SMA plug
MAX output power: 2500 mW/+34dbm
Temperature: andlt; 80?
As you can see, they specify a maximum input of 600mW, but don't specify
the gain, so I'm not sure what is the minimum power needed to drive it to
full power output. The other interesting thing is that the listings call
them a "...Booster Amplifier 3W 4.5W for FPV " but the specs say that the
maximum power output is 2.5 watts, so I'm not sure what the "3W 4.5W"
refers to...
I'm not sure what you mean about a mount/rotator specifically designed for
these satellites. There are az/el rotators out there already that should do
the job. And there are folks out there who are writing code for Arduino
controllers to take over control of Yaesu (and maybe other) rotators...
John
On Sat, Apr 9, 2016 at 5:54 PM, Jim Barbre <jbarbre@xxxxxxxx.xxx> wrote:
> Thanks John for your responses. How much power is needed to drive the
> "drone" linears? Will a HackRF provide enough power to run one?
> Anyone working on a mount/rotator specifically designed for these
> satellites?
>
> 73
> Jim
> KB7YSY
>
> On 4/9/2016 3:34 PM, John Toscano wrote:
>
> Estimates suggest aiming for 8 watts of RF and a re-purposed
> 3-foot-diameter satellite TV dish to be able to get into the bird. It would
> be nice if only 3 - 4 watts were enough to do the job, because there are
> inexpensive 3 - 4 watt linear amplifiers designed for First Person Video on
> radio-controlled "drone" aircraft like this:
>
>
http://www.ebay.com/itm/262249565979?_trksid=p2057872.m2749.l2649&ssPageName=S
TRK%3AMEBIDX%3AIT
>
> So, time will tell. It is possible that with a slower digital transmission
> rate the bird might hear well enough for the lesser power. I expect I will
> try one of these low-power amps, and might even consider driving a pair of
> them into an appropriate combiner to get twice the power if one by itself
> does not make the grade. They are small and light, but would require
> protection from weather. On the other hand, I should have 10 watts
> available if I need it, once I perform these modification on a much bigger
> and heavier surplus power amplifier:
> http://www.g4fre.com/avantekpa.htm
> (In fact, I have two of these beasts awaiting modification. I think they
> are much too large and heavy for my tripod-mounted rover station, but one
> of them might be doable on a fixed station.)
>
> It would be hard to equal the gain of a dish by using a helix. Once upon a
> time, I thought that the helix was the greatest antenna in existence, just
> make it longer and longer to get outrageous amounts of gain. But the more I
> investigated the less excited I got about building a humongous helix
> antenna. (In fact, at one point, I was dreaming about a 2x2 quad array of
> helices of great length, but I never actually attempted to build one.) On
> the other hand, I have been amazed by the ability of a scrap-heap satellite
> TV dish (less than 3 feet in diameter) and a couple of watts of power to
> make terrestrial 10 GHz SSB QSO's over distances of well over 100 Km, at
> least when I stopped using a dish that was bent like a Pringles Potato
> Chip, causing it to lose 10-20 db of its gain! I expect even greater things
> when an un-damaged dish is pointed up into the sky, away from trees and
> hills!
>
> For the 10 GHz downlink, a possible low-cost scenario might work out to be
> a direct-to-home satellite TV dish of approximately one meter in diameter,
> and a PLL-based LNBF, which would mix the 10.5 GHz satellite signal down to
> the 600 MHz or so range, and the receiving that with some sort of SDR,
> possibly even a RTL-SDR USB dongle, though perhaps a better SDR might be
> required. The downlink is going to be DVB-S2x which is NOT the native
> format of the inexpensive USB dongles. DVB-S2x requires a bit of
> computation ability on the computer controlling the SDR, especially if the
> VLSNR (Very Low Signal to Noise Ratio) extensions are needed. It is also
> possible that we can find (and suitably modify) an inexpensive
> direct-to-home satellite TV receiver. AMSAT also expects to have a familiar
> USA company building complete ground station transceivers, but those will
> likely command a bit of a (well-deserved) premium price. We are actively
> pursuing a lot of different choices, so stay tuned!
>
> From what I have heard, the bird will be in a geosynchronous orbit, NOT a
> geostationary orbit, so periodic dish re-positioning of some sort will be
> necessary. Since the primary payload onto which we get to piggyback is
> owned by a government agency that likes to keep secrets, an exact proposed
> orbit is not widely discussed, if at all. So it is hard (for me, at least)
> to give more specifics at this time. You won't need the
> horizon-to-zenith-to-horizon pointing ability needed to chase a satellite
> in Low Earth Orbit, but some positioning in both azimuth and elevation will
> be needed. High precision will be more valuable than a wide range of
> pointing directions. In other words, being able to tweak the position by a
> degree at a time to fine-tune the pointing would be more helpful than being
> able to move the dish by 30 or 40 degrees. I wish I could be more specific,
> but I can't at this time. On the other hand, one of the other projects in
> the works is the NASA-sponsored CubeQuest Challenge, and for that bird you
> would need to be able to point at any part of the sky where you observe the
> moon, since the package is going to be headed for lunar orbit! We are
> trying to make these two birds compatible with the same ground station
> equipment.
>
> Sorry for the vagueness, but I hope it helps a little bit.
> 73 de W0JT/5, EL09vu
>
> On Sat, Apr 9, 2016 at 12:42 PM, Jim Barbre <jbarbre@xxxxxxxx.xxx> wrote:
>
>> Hi all,
>>
>> Given that people are currently working on groundstations for the
>> upcoming HEO/GEO sats, I am in hopes that at least some of the following
>> questions can be answered.
>>
>> What kind of power will be required on the 5GHz uplink?
>>
>> Does anyone currently make a linear amp or upconverter that can be
>> mounted at the antenna for the 5GHz uplink?
>>
>> Will I be able to use a helix antenna on the uplink or will I be limited
>> to using a dish?
>>
>> Same question with regards to antenna usage for 10GHz downlink.
>>
>> What size dish?
>>
>> With AO-10 and AO-13 I could point my antennas at the satellite and not
>> have to move them for an hour or longer. These new sats will be using
>> microwave frequencies. What kind of realistic expectation do I have of
>> being able to point a dish at the satellite before having to tweak it?
>> Otherwise said, will a rotator be absolutely necessary?
>>
>> Thanks for the info. Looking forward to working the next generation of
>> HEO/GEO sats.
>>
>> 73
>> Jim Barbre
>> KB7YSY
>> _______________________________________________
>> 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, 10 Apr 2016 14:24:14 -0400
From: John Brier <johnbrier@xxxxx.xxx>
To: AMSAT BB <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Will this antenna work for the potential new GEO
sat?
Message-ID:
<CALn0fKPdDh-K6xyz=Tv0LONTtKimnQfw9kw2kJ9CYzpm6fEE+g@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
http://www.wvgazettemail.com/news/20160409/perfect-man-cave-awaits-buyer-in-ru
ral-preston-county
73, KG4AKV
------------------------------
Message: 5
Date: Sun, 10 Apr 2016 13:24:40 -0500
From: John Toscano <tosca005@xxx.xxx>
To: n1jez@xxxxxxxxxxxxxxxxx.xxx
Cc: AMSAT BB <amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] Link budgets for upcoming HEO/GEO sats
Message-ID:
<CABGf72qkJyX8hPvBhHY7Nu_ZqU4JmthAL+4gXSHhi7egxJcdCQ@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
Looking forward to testing mine too. I found another web site that claims
that 600mW of input drive would give nearly 5W of output.
http://www.aliexpress.com/item/Free-Shipping-Power-Microwave-TXPA58002W5-5-8GH
z-5-8G-AV-Wireless-Transmitter-Tx-Signal-Booster/32231215867.html?spm=2114.400
10208.4.133.5VRg7W
He has a few pictures showing him taking power measurements himself, making
this a bit more believable. Would have to watch the heat dissipation
closely, since they quote 20 watts of supply power (so 15 or more watts of
heat).
John
On Sun, Apr 10, 2016 at 6:14 AM, Mike Seguin <n1jez@xxxxxxxxxxxxxxxxx.xxx>
wrote:
> Preliminary tests on the amp show ~ 11.5 dBm in will give 3.5 watts out.
> That is after a mod to remove an internal pad. Testing done at 5760 MHz.
>
> From the HackRF specs, you would need 10-20 dB of gain to drive the amp as
> output between 4000-6000 MHz is -10 to 0 dBm. I'd probably use a simple
> MMIC amp for starters.
>
> I hope to test the system once my amp arrives in the next week or so.
>
> Mike
>
> On 4/9/2016 6:54 PM, Jim Barbre wrote:
>
>> Thanks John for your responses. How much power is needed to drive the
>> "drone" linears? Will a HackRF provide enough power to run one?
>> Anyone working on a mount/rotator specifically designed for these
>> satellites?
>>
>> 73
>> Jim
>> KB7YSY
>>
>> On 4/9/2016 3:34 PM, John Toscano wrote:
>>
>>> Estimates suggest aiming for 8 watts of RF and a re-purposed
>>> 3-foot-diameter satellite TV dish to be able to get into the bird. It
>>> would be nice if only 3 - 4 watts were enough to do the job, because
>>> there are inexpensive 3 - 4 watt linear amplifiers designed for First
>>> Person Video on radio-controlled "drone" aircraft like this:
>>>
>>>
http://www.ebay.com/itm/262249565979?_trksid=p2057872.m2749.l2649&ssPageName=S
TRK%3AMEBIDX%3AIT
>>>
>>> So, time will tell. It is possible that with a slower digital
>>> transmission rate the bird might hear well enough for the lesser
>>> power. I expect I will try one of these low-power amps, and might
>>> even consider driving a pair of them into an appropriate combiner to
>>> get twice the power if one by itself does not make the grade. They are
>>> small and light, but would require protection from weather. On the
>>> other hand, I should have 10 watts available if I need it, once I
>>> perform these modification on a much bigger and heavier surplus power
>>> amplifier:
>>> http://www.g4fre.com/avantekpa.htm
>>> (In fact, I have two of these beasts awaiting modification. I think
>>> they are much too large and heavy for my tripod-mounted rover station,
>>> but one of them might be doable on a fixed station.)
>>>
>>> It would be hard to equal the gain of a dish by using a helix. Once
>>> upon a time, I thought that the helix was the greatest antenna in
>>> existence, just make it longer and longer to get outrageous amounts of
>>> gain. But the more I investigated the less excited I got about
>>> building a humongous helix antenna. (In fact, at one point, I was
>>> dreaming about a 2x2 quad array of helices of great length, but I
>>> never actually attempted to build one.) On the other hand, I have been
>>> amazed by the ability of a scrap-heap satellite TV dish (less than 3
>>> feet in diameter) and a couple of watts of power to make terrestrial
>>> 10 GHz SSB QSO's over distances of well over 100 Km, at least when I
>>> stopped using a dish that was bent like a Pringles Potato Chip,
>>> causing it to lose 10-20 db of its gain! I expect even greater things
>>> when an un-damaged dish is pointed up into the sky, away from trees
>>> and hills!
>>>
>>> For the 10 GHz downlink, a possible low-cost scenario might work out
>>> to be a direct-to-home satellite TV dish of approximately one meter in
>>> diameter, and a PLL-based LNBF, which would mix the 10.5 GHz satellite
>>> signal down to the 600 MHz or so range, and the receiving that with
>>> some sort of SDR, possibly even a RTL-SDR USB dongle, though perhaps a
>>> better SDR might be required. The downlink is going to be DVB-S2x
>>> which is NOT the native format of the inexpensive USB dongles. DVB-S2x
>>> requires a bit of computation ability on the computer controlling the
>>> SDR, especially if the VLSNR (Very Low Signal to Noise Ratio)
>>> extensions are needed. It is also possible that we can find (and
>>> suitably modify) an inexpensive direct-to-home satellite TV receiver.
>>> AMSAT also expects to have a familiar USA company building complete
>>> ground station transceivers, but those will likely command a bit of a
>>> (well-deserved) premium price. We are actively pursuing a lot of
>>> different choices, so stay tuned!
>>>
>>> From what I have heard, the bird will be in a geosynchronous orbit,
>>> NOT a geostationary orbit, so periodic dish re-positioning of some
>>> sort will be necessary. Since the primary payload onto which we get to
>>> piggyback is owned by a government agency that likes to keep secrets,
>>> an exact proposed orbit is not widely discussed, if at all. So it is
>>> hard (for me, at least) to give more specifics at this time. You won't
>>> need the horizon-to-zenith-to-horizon pointing ability needed to chase
>>> a satellite in Low Earth Orbit, but some positioning in both azimuth
>>> and elevation will be needed. High precision will be more valuable
>>> than a wide range of pointing directions. In other words, being able
>>> to tweak the position by a degree at a time to fine-tune the pointing
>>> would be more helpful than being able to move the dish by 30 or 40
>>> degrees. I wish I could be more specific, but I can't at this time. On
>>> the other hand, one of the other projects in the works is the
>>> NASA-sponsored CubeQuest Challenge, and for that bird you would need
>>> to be able to point at any part of the sky where you observe the moon,
>>> since the package is going to be headed for lunar orbit! We are trying
>>> to make these two birds compatible with the same ground station
>>> equipment.
>>>
>>> Sorry for the vagueness, but I hope it helps a little bit.
>>> 73 de W0JT/5, EL09vu
>>>
>>> On Sat, Apr 9, 2016 at 12:42 PM, Jim Barbre <jbarbre@xxxxxxxx.xxx
>>> <mailto:jbarbre@xxxxxxxx.xxx>> wrote:
>>>
>>> Hi all,
>>>
>>> Given that people are currently working on groundstations for
>>> the upcoming HEO/GEO sats, I am in hopes that at least some of the
>>> following questions can be answered.
>>>
>>> What kind of power will be required on the 5GHz uplink?
>>>
>>> Does anyone currently make a linear amp or upconverter that can be
>>> mounted at the antenna for the 5GHz uplink?
>>>
>>> Will I be able to use a helix antenna on the uplink or will I be
>>> limited to using a dish?
>>>
>>> Same question with regards to antenna usage for 10GHz downlink.
>>>
>>> What size dish?
>>>
>>> With AO-10 and AO-13 I could point my antennas at the satellite
>>> and not have to move them for an hour or longer. These new sats
>>> will be using microwave frequencies. What kind of realistic
>>> expectation do I have of being able to point a dish at the
>>> satellite before having to tweak it? Otherwise said, will a
>>> rotator be absolutely necessary?
>>>
>>> Thanks for the info. Looking forward to working the next
>>> generation of HEO/GEO sats.
>>>
>>> 73
>>> Jim Barbre
>>> KB7YSY
>>> _______________________________________________
>>> 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. 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
>>
>
> --
>
> 73,
> Mike, N1JEZ
> "A closed mouth gathers no feet"
> _______________________________________________
> 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, 10 Apr 2016 15:21:24 -0400
From: jeffory broughton <jefforybroughton@xxxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] AO-7 MODE A AGAIN TODAY !
Message-ID:
<CACm2je1QRpK8BQjVsrRqBYc9wEoCE0286wnSDJFRw9rmfxGWFg@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
Caught Oscar 7 in mode A again this afternoon.Was on with WN9M on 29.450.He
was smart enough to listen for the beacon I n 29.502 and heard it !
I was not so smart. Discovered a secrete, listen on mode B, if you don't
hear the typical transponder noise Oscar generates ,it's in mode A !
jeff broughton. WB8RJY
------------------------------
Message: 7
Date: Sun, 10 Apr 2016 14:27:15 -0500
From: Joe <nss@xxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: Re: [amsat-bb] AO-7 MODE A AGAIN TODAY !
Message-ID: <570AA913.7000107@xxx.xxx>
Content-Type: text/plain; charset=windows-1252; format=flowed
How loud is the 29.502 beacon?
Joe WB9SBD
Sig
The Original Rolling Ball Clock
Idle Tyme
Idle-Tyme.com
http://www.idle-tyme.com
On 4/10/2016 2:21 PM, jeffory broughton wrote:
> Caught Oscar 7 in mode A again this afternoon.Was on with WN9M on 29.450.He
> was smart enough to listen for the beacon I n 29.502 and heard it !
> I was not so smart. Discovered a secrete, listen on mode B, if you don't
> hear the typical transponder noise Oscar generates ,it's in mode A !
>
> jeff broughton. WB8RJY
> _______________________________________________
> 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, 10 Apr 2016 15:31:50 -0500
From: Clayton W5PFG <w5pfg@xxxxx.xxx>
To: jeffory broughton <jefforybroughton@xxxxx.xxx>, amsat-bb@xxxxx.xxx
Subject: Re: [amsat-bb] STATIONS WITH DISTORTED AUDIO ON AO-85
Message-ID: <570AB836.3030003@xxxxx.xxx>
Content-Type: text/plain; charset=windows-1252; format=flowed
All good points, Jeff.
One other thing I've noticed is that some people using Narrow FM mode
might want to try normal deviation to sound better. The Narrow doesn't
always help. There is no "one size fits all" on the Narrow/Wide FM
debate for AO-85. Use what works best for your station. Some radios
like the IC-9100 allow you to set Narrow for either the uplink or
downlink separately.
73
Clayton
W5PFG
On 4/10/2016 09:22, jeffory broughton wrote:
> I hear many stations with grossly distorted uplink audio on AO-85.
> A- Be sure your keps are up to date.
> B- use the newest doppler.sqf files
> C- use N.B. tx ,if your rig does not have
> It,back off the mic and reduce the mic gain while monitoring your down link
> for clean audio.
> D- it is possible to have crystal clear audio on AO-85 with a little fine
> tuning.
> Jeff ,WB8RJY
>
> jeff broughton
> _______________________________________________
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------------------------------
Message: 9
Date: Sun, 10 Apr 2016 21:52:33 +0100
From: Daniel Cussen <dan@xxxx.xxx>
To: AMSAT BB <amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] Will this antenna work for the potential new
GEO sat?
Message-ID:
<CAF3DnKgNko3WmyjdOpWCgQN1D8qof_cYu0Yt30xVGByOSMvMxA@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
There are similar ground stations on the European side of the pond.
The one in Ireland also houses the small 4 foot dish for the HAMTV ISS
ground station.
Normally the locations are specifically chosen as they are radio
quiet, meaning they are far from towns and sources of RF noise. They
normally have full backup generators and microwave link towers. Often
the main dishes no longer move, and if they do, they are really only
suitable for geostationary satellites, and often designed for low
frequencies, and as such, obsolete for modern uplinks.
Often they do have some obstructions, such as nearby small hills,
designed to block direct strong winds, as they are designed to operate
in all weathers and the dishes act as a sail.
Often these sites end up derelict, as they are so remote they are not
of desire to anyone.
On 10/04/2016, John Brier <johnbrier@xxxxx.xxx> wrote:
>
http://www.wvgazettemail.com/news/20160409/perfect-man-cave-awaits-buyer-in-ru
ral-preston-county
>
> 73, KG4AKV
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Message: 10
Date: Sun, 10 Apr 2016 22:14:26 +0100
From: "Graham Shirville" <g.shirville@xxxxxxxxxx.xxx>
To: "AMSAT BB" <amsat-bb@xxxxx.xxx>, <funcube@xxxxxxxxxxx.xx.xx>
Subject: [amsat-bb] FUNcube-1
Message-ID: <02038659782B458A85BC4D28F1FCA5F5@xxxxxxx.xxxxx>
Content-Type: text/plain; charset="UTF-8"
Hi All,
FUNcube-1 is now changing mode autonomously again. In sunlight ? Educational
Mode and in eclipse ? Amateur mode.
The FUNcube operations team really appreciates the telemetry that we
continue to receive from stations around the globe. This data is proving
invaluable in helping us understand exactly what the status is of all the on
board systems and we are very grateful for everyone?s support.
If you have the opportunity to leave a receiver running on the 145.935MHz
nominal downlink frequency with FUNcube Dashboard running we would be very
pleased to have the data you receive. Full details of the FUNcube Dashboard
and the associated Data Warehouse can be found at the
https://funcube.org.uk/ website.
Many thanks and 73
Graham
G3VZV
------------------------------
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 112
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