[Dxbase] Icom Split OK driver problem

Fri Oct 28 14:38:39 EDT 2011

Hopefully the last bit on this topic, but wanted to clarify it just a bit...
After some further discussions on a different reflector with Dave AA6YQ I 
had reset my CI-V Transceive menu item back to ON under the impression that 
if I left it OFF I would again be exposed to data collisions with the PW-1 
on the CI-V buss. Additional input from Joe W4TV and a recheck of the 
MicroHAM MKII documentation regarding the CI-V buss on the MicroHAM MKII 
keyer have led me to revert back to CI-V Transceive OFF in my IC-7600.
Per the MKII documentation, "CI-V port settings: The CI-V port will emulate 
an Icom transceiver and "broadcast" the frequency data if Router can 
determine it by polling the rig or reading polling data from the logging 
program. The transceive broadcast can be used to control peripherals that 
use Icom protocol." This means that the MKII CI-V buss is a dedicated 
private buss connected to my PW-1 ONLY.
This situation is unique to my hardware configuration. Per Joe W4TV, "... 
if the logging program does not poll for the necessary data, Router will do 
so. It generates periodic "CI-V transceive" data broadcasts on the CI-V 
port (MK II or DigiKeyer II), ACC port (MK2R/MK2R+ if so configured) or PA 
Port (Station Master if PA is enabled) that will allow any Icom compatible 
accessory to "track" the transceiver. In addition, the CI-V port will 
respond to the "where are you" inquiries from the PW-1 and *not* pass them 
back to the transceiver preventing buss collisions." If you do not have one 
of these MicroHAM products that features a dedicated CI-V bus connected to 
your PW-1 you should probably leave the CI-V Transceive set to it's default 
of ON.
So once again I a happy camper able to use the IC7600_SPLITOK driver in DXB. 
Yahoo!
73,
Gary AL9A
----- Original Message ----- 
From: "Gary AL9A" <al9a at mtaonline.net>
To: "DXbase Reflector" <dxbase at mailman.qth.net>
Sent: October 24, 2011 4:28 PM
Subject: Re: [Dxbase] Icom Split OK driver problem
> Just to update the reflector, I found the problem and it is now resolved!
> Joe helped me quite a bit off line by suggesting modifying the IC-7600
> driver by changing the Pacing and ECO settings to slow down the
> communication between the radio and DXB. Unfortunately many hours of
> tinkering did not show consistent and reliable improvement.
>> Finally I focused on the possibility that the problem was related to CIV
> data collisions somewhere along the line. My IC-7600 is connected to a
> Microham MKII keyer and an IC-PW-1 amp. I went into the Set/Others menu 
> and
> changed the CIV Transceive function from its default ON to OFF. That did
> the trick. Now I get no erratic or intermittent behavior when DXB reads 
> the
> VFOs while in Split mode. So, if you have an Icom radio and start seeing
> problems with your VFOs changing frequencies after DXB reads them try
> turning the CIV Transceive OFF and see if the problem goes away.
>> As always thanks again to Joe - for updating the Icom drivers in the
> radios.ini file and for jumping in to help me resolve my issue. Turns out
> his driver settings were not the problem, but I still appreciate his 
> taking
> an interest in my problem and trying to help me get it solved. Great
> support!
>> 73,
> Gary AL9A
>