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Re: Comparing rigs TS-2000 vs FT-897D



The FT-897 has the distinct advantage of being wholly portable with optional internal batteries, which sounds like just the thing for your HF mission. However it is not a satellite radio and only operates half-duplex. See the upcoming Journal for an article I wrote about using the 897's little brother, the 817, for FO-29 portable operations. It's possible to work the linear transponders half duplex with some major caveats involving power and tuning procedures. Half duplex is NOT recommended for the FM voice satellites due to collisions on the single uplink frequency and the confusion and congestion this causes. You need to be able to hear if you are interfering with other users.

I've had good luck using a FT-817, paired with either a FT-100 or a single band portable allmode rig like the FT-790mkII, on both AO-40 and the low orbit satellites. You could do the same thing with the 897 and a single bander for probably much less than the 2000 costs.

Also, be aware of the birdie issues with the 2000 and the downlink for AO-27 and SO-50 (2/3 rds of the FM fleet).

I'd be happy to help you any way I can, I'm a bit of a portable satellite fan myself.....

73, Drew KO4MA

-----Original Message-----
From: "Michael E. Mc Kaughan" <drmmckaugh@earthlink.net>
Sent: Jan 19, 2005 10:09 PM
To: amsat-bb@amsat.org
Subject: [amsat-bb] Comparing rigs TS-2000 vs FT-897D

Greetings net,

     I have begun comparing radios for a potential trip to some isolated
locations in Alaska this summer.  I am interested in what some of you might
think.  Portability is an issue, since I will be traveling via various modes
of transportation to get to remote sites like Loran-C transmitter sites,
Differential GPS transmitter sites, etc.  I will be doing HF propagation
studies, but would also be overjoyed to be able to operate some of the
satellites.

     Please feel free to reply off-net or on-net.

Thank you in advance,

Michael McKaughan
k1dm@arrl.net or
mmckaughan@exmail.uscga.edu
----
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