[amsat-bb] AO-7 Mode B Questions (difficulty getting in)

[Bill Gaylord]

Question is it possible to use the other mode? Or does it not work or something else?

> On Aug 24, 2019, at 11:40 AM, Andrew Glasbrenner via AMSAT-BB <amsat-bb at amsat.org> wrote:
> 
> Do you see the other strong signals while you are transmitting as well?
> 
> 73, Drew KO4MA
> 
>> On Aug 24, 2019, at 12:23 PM, Roy Dean via AMSAT-BB <amsat-bb at amsat.org> wrote:
>> 
>> Hi all.
>> 
>> I'm hoping for some suggestions to help me "get in" to AO-7 mode B.
>> 
>> So far, my experience is as follows (on any pass, regardless of elevation):
>> No matter what my output setting is on my IC-706MKIIG, I can only just
>> barely get into the transponder.   Even on a good day, when I am seeing
>> multiple strong CW and SSB QSO's happening on the waterfall, my uplink can
>> only just barely be seen, let alone heard.   The 706MKIIG ouputs 20W on
>> UHF, and checking with a wattmeter - it seems to be spot on (using FM -
>> could SSB be performing differently?).   I've hooked up my M2 UHF cross
>> yagi to an SWR meter, and it comes in at less than 1.5.   I can get into
>> all the other linears with relative ease.
>> 
>> My UHF crossed dipole is supposed to be RHCP (if I connected everything
>> correctly), and I believe that the 70cm Rx antenna on AO-7 is also CP,
>> correct?   But is it RH or LH?    And does anybody know of a RHCP UHF
>> downlink on a satellite that I can use to to positively confirm my UHF
>> cross yagi polarization?
>> 
>> Any other suggestions welcome.
>> 
>> FYI - I am using an RTL-SDR.com V3 dongle on receive, with GQRX controlled
>> by Gpredict - this setup actually works pretty well for me on all the other
>> linears, believe it or not!   I am positive that this is NOT an Rx issue on
>> my end because I can see other strong QSOs in the waterfall - just not my
>> own.   So I believe this is an issue with my Tx.
>> 
>> --Roy
>> K3RLD
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> 
> _______________________________________________
> Sent via AMSAT-BB at amsat.org. 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: https://www.amsat.org/mailman/listinfo/amsat-bb