[amsat-bb] Re: New ICOM VHF / UHF / SHF Radio

[Gary "Joe" Mayfield]

I believe the K-3 sub receiver does full duplex on HF as long as you use
different antenna ports.  Sounds like a great solution to me.  One would
think you could do that with the transverters, and have a full duplex
satellite radio.

73,
Joe kk0sd

-----Original Message-----
From: amsat-bb-bounces at amsat.org [mailto:amsat-bb-bounces at amsat.org] On
Behalf Of James Duffey
Sent: Sunday, August 23, 2009 9:46 AM
To: k7dd at cox.net
Cc: James Duffey; 'AMSAT-BB'
Subject: [amsat-bb] Re: New ICOM VHF / UHF / SHF Radio


On Aug 23, 2009, at 7:49 AM, Michael Baker wrote:

>
> 	If that's the case, I think I would opt for a K3 with transverters
> as that would be a better combination performance wise for the $$$
> investment.

While the raw performance of a K-3 is pretty impressive, it will cost  
a lot more to reproduce the new ICOM-9100, or even the current  
TS-2000, with a K-3 and even then, you will not have the ability to do  
full duplex, which is required for serious satellite work. A modestly  
equipped K-3 with 10W 2M output will set you back $2700 or more, you  
need to add a 100W 2M amplifier at about $400, a 432 MHz transverter  
at $400, a 432 MHz amplifier at $400, a 75 Watt amp at $400, and a  
1296 MHz transverter at $600, so you are close to $5k, still without  
the capability to do duplex for satellites.

For sheer performance you are better off with the K-3, but you pay for  
it, and serious satellite use is precluded. - Duffey
--
KK6MC
James Duffey
Cedar Crest NM





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