[amsat-bb] Mode B operating question...

[Devin L. Ganger]

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 at gmail.com>
Sent: Thursday, December 29, 2016 8:59 AM
To: Paul Stoetzer<mailto:n8hm at arrl.net>
Cc: Amsat BB<mailto:amsat-bb at amsat.org>
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 at arrl.net> 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 Much to my dismay, some literature, including the most recent edition of the ARRL Operating Manual still include the outdated suggestion to always tune your transmitter.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 at gmail.com> 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
>>
>>
>>
>>
>>
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_______________________________________________
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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