[amsat-bb] Re: Full Duplex as a Single Channel on a HT

Don Ferguson kd6irexx at gmail.com
Fri Apr 8 14:38:10 PDT 2011


The Alinco DJ-G7 is full duplex and has 100 cross band memory channels that
can do Satellites. You can setup 5 memory channel pairs to cover first
approach, near approach, Closest position, near departure, far departure.
Then just click through the memories as the satellite passes. Another DJ-G7
feature is it can also do 1 watt on 1.2GHZ uplink to AO51.

I suggest using 5khz steps on 435mhz so it does 5 memory sets. 

Good luck,
 Don - kd6ire
-----Original Message-----
From: amsat-bb-bounces at amsat.org [mailto:amsat-bb-bounces at amsat.org] On
Behalf Of Bill W1PA
Sent: Friday, April 08, 2011 12:10 PM
To: AMSAT-BB at amsat.org
Subject: [amsat-bb] Full Duplex as a Single Channel on a HT

Do any of the current or classic "satellite" HT's (FT-51R, IC-W32A, etc)
allow you to create a single channel with a FM bird rx/tx pair in full

I.e. I turn one knob and get   435.310  145.875
                                {click}      435.300  145.880
                                {click}      435.290  145.885

I could do this with the 20 DUP channels on the Ft-100D.

Even though the IC-W32A has two "knobs", it looks like (from the manual)
only one can be in memory mode at one time, so TX would be in VFO mode, and
the other would be in channel mode. Is this correct?

So for each change (AOS, MID, LOS), I have to turn both knobs one click,
correct? Even if I can have memories on both sides, I still have to turn
both knobs -- If so, why wouldn't I just use a
VX-170/VX-177 pair of HT's, and turn both knobs?

I can program my DJ-V5 to have the "odd split" (TX144/RX432) single knob
channels, but of course, it is not full duplex.

Bill  W1PA


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