[amsat-bb] Re: Getting back into Satellites

[Greg D]

Hi Kevin,

With SSB, pretty much required, in order to get your Tx and Rx aligned 
with each other and with the others you are talking to. It can be done 
by computer with half duplex, but the operator on the other end will 
probably need to work harder.

With FM it's highly recommended, not so much for frequency control, but 
because it's so easy to step on someone else. Full duplex lets you know 
you're not the one controlling the channel, so you can back off and let 
the QSO occur.

Hope to work you some day,

Greg KO6TH



Kevin Muenzler, WB5RUE wrote:
> 73/all
>
> Is Full Duplex really required or just nice to have?  Currently my setup
> (which doesn't include an antenna at the moment due to storms) is a Yaesu
> FT-790(uhf) and FT-290(vhf).  Both do FM and SSB at about 25 watts.  I've
> used to use my 290 for the old RS-12/13 and RS-15 birds along with my FT-890
> (RIP) for the 10 meter downlink so I do have "full duplex" but is it a
> necessary feature?  I know it's nice to be able to hear yourself to know
> that you are even getting into the machine.
>
> 73/
>
> Kevin Muenzler, WB5RUE
> Grid EL09uf
> Eagle Creek Observatory
> http://www.eaglecreekobservatory.org
> I have not yet begun to procrastinate!
>
>
>
> -----Original Message-----
> From: amsat-bb-bounces at amsat.org [mailto:amsat-bb-bounces at amsat.org] On
> Behalf Of Andrew Glasbrenner
> Sent: Thursday, February 07, 2013 11:04 AM
> To: jeffrey.embry at gmail.com
> Cc: amsat-bb at amsat.org
> Subject: [amsat-bb] Re: Getting back into Satellites
>
> There is only one currently operable FM satellite, and many of the sats due
> to be launched this year are transponders or FM/DSB repeaters.
>
> My suggestion would be to find a Yaesu 817 to get a toe into transponders,
> and add -any- UHF receiver for full duplex FM. The little Baofeng UV3s are
> like $45 and have good receivers in them.
>
> 73, Drew KO4MA
>
> Sent from my iPhone
>
> On Feb 7, 2013, at 10:26 AM, Jeffrey Embry<jeffrey.embry at gmail.com>  wrote:
>
>> Good Day all,
>>
>> After a few years hiatis, I am contemplating getting back on the
>> birds.  Because I currently live in an apartment, I plan on starting
>> the easy route using an arrow antenna.  My question is, since I sold
>> my last HT about a decade ago, what is recommended for the current
>> models of HTs that have full-duplex capabilities?
>>
>> 73es,
>>
>> --
>> Jeff Embry, K3OQ
>> FM19nb
>> ARCI #11643, FPQRP #-696,
>> QRP-L # 67, NAQCC #25, ARS #1733
>> AMSAT LM-2263
>>
>> --
>> Success is the ability to go from one failure to another with no loss
>> of enthusiasm.  - Sir Winston Churchill
>> _______________________________________________
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