[amsat-bb] Icom AND HAM RADIO DELUXE-Sat Control

Ted k7trkradio at charter.net
Sun Jan 8 23:16:54 UTC 2017

This information was just posted on the IC-9100 Group. I thought it might be useful for anyone here struggling with an ICOM (other than an IC-9100) and HRD. Apparently, the IC-9100 does not have any problem with SatPC32


73, Ted



From: ic9100 at yahoogroups.com [mailto:ic9100 at yahoogroups.com] 
Sent: Sunday, January 8, 2017 6:09 AM
To: ic9100 at yahoogroups.com
Subject: [ic9100] Re: IC 9100 AND HAM RADIO DELUXE





Last year I had the same problem! Look for the HRD answer:



Dear Julio,

With RX and TX checked, the frequencies for uplink and downlink should be adjusted for Doppler effect, however, with the Icom radios there is a major issue which is due to the design of the radio itself.

All rigs use a set of commands to control their functions.
The command set is usually included in the operating manual for the rig.
Any software needs to use these commands to control the various functions of your rig.

Icom, has elected NOT to include commands in all their rigs to directly address VFO B or the Sub VFO.
This makes it difficult to impossible to display or control VFO B.

Some software authors have decided to use a kluge of sorts to work around this issue.
They do this by sending the command to swap VFO's - that is, the frequency in VFO A becomes the frequency in VFO B and vice versa.

The rig control program then reads the data from VFO A and stores it as VFO B.
It then swaps the VFOs back to the initial frequencies.

This takes a few microsecond to seconds depending on your Rig/Computer/Link speed and what data is being shared on the control bus (remember Icom CI-V is a shared serial data bus). 
This is an important consideration as it will interrupt the signal being received on VFO A for that period of time it is swapping back and forth as well as getting the data from the rig.

It would make copying data or CW signals impossible as they would be constantly interrupted for an update of the frequency in VFO B.

While that update may be a very short period of time, it would not be consistent or predictable.

HRD has elected NOT to place this kludge in it's software because of this reason with the exception of the IC-9100.
The IC-9100 in Satellite Mode (ONLY) will perform this swapping of VFOs as it is necessary for satellite work and the IC-9100 has individual audio outputs for the two VFOs.

It's important to realize this is a shortcoming on the part of Icom by not including these commands.
All attempts to work with Icom to address the issue have met with denial of a problem from Icom.

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