[amsat-bb] Re: Alinco DJ-G7T programming cable

[Howard Long]

FWIW, Drew and I ran two DJ-G7's in full duplex mode into a comms tests set,
one was Drew's very early model and mine was a more recent model. We also
took the opportunity to test a TH-D7.

We ran the tests using AO-51's uplink and downlink frequencies. Drew has the
actual figures, but as I remember it they were like this:

Early DJ-G7 15dB desense
Later DJ-G7 5dB desense
TH-D7 1dB desense

The test involved adjusting receive signal power until we had a 12dB SINAD
measurement, first without transmitting then while holding the radio's PTT.

73, Howard G6LVB

-----Original Message-----
From: amsat-bb-bounces at amsat.org [mailto:amsat-bb-bounces at amsat.org] On
Behalf Of Alan P. Biddle
Sent: 17 August 2009 20:49
To: AMSAT-BB
Subject: [amsat-bb] Alinco DJ-G7T programming cable

Hi,

Sometime back, while my rig was on back order, I asked if anyone had used
Icom programming cables with it.  My rig finally arrived, as did shortly
thereafter new firmware and most recently a memory cloning program.  With
that, I have been able to test both the Icom OPC-478 and the RT Systems
CT-29A cables.  (Both need a stereo 3.5 mm to 2.5 mm adapter, plus the
EDS-10 adapter which breaks out the Alinco connector to separate microphone
and earphone connectors.)  In both cases, I have found that they work
perfectly for both memory management and firmware upgrade.  If you already
have a similar cable, you can probably get by with a $4 adapter from RS
rather than a new $55 cable.

Unfortunately, the DJ-G7T is not so far proving to be an adequate satellite
rig, but that is another issue.


Alan
WA4SCA


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