[Dx4win] ICOM 7600-7700-7800 and there so called VFO-B SPLIT function

Sun Feb 13 13:02:24 EST 2011

Ciao Dick and Guy
maybe the logic could be changed in the way of:

IF THE SPLIT IS ACTIVE
   THEN
     SET VFO-B ACTIVE
     READ ACTIVE VFO
END-IF

But still not very safe for all the other equipment on the CI-V chain.
Sometimes the split frequency can drop on the "next frequency segment"
like happens on the STeppIr and on the Expert-K1.

----------------------

73 de Max, I8NHJ/NH7CU
one of EL2PP, 1A0KM, JT1Y, E30GA, T77V, TT8MM, T32R, K5K, XR0X, S05X, 4O3T, BS7H, K4M, PJ7E

on domenica 13 febbraio 2011 you wrote:

DF> It is possible to read the second VFO "on demand" 
DF> instead of only when polling?  I think it would 
DF> be safe to bounce the VFOs like you are doing at 
DF> the point of writing a log entry and when 
DF> processing an ALT-A command.  At least I would like to try such a system.

DF> Dick

DF> At 09:13 AM 2/13/2011, ON4AOI wrote:
 >>Hi All with Icom tranceivers,
 >>
 >>With ICOM announcing that the split status can be read from some of their
 >>radios,
 >>we had hope that support for obtaining the split frequency was finally
 >>possible in DX4WIN.
 >>The way we tried to read the VFO-B frequency is not working as we hoped and
 >>SHOULD NOT BE USED. I have asked Jim to remove the rig files for the IC7600
 >>and IC7700.
 >>
 >>Here my comments about the new firmware where it all should have been fixed
 >>and working now!!!!!!!!!!!
 >>
 >>This is not TRUE and probably never will be
 >>UNLESS WE STOP TO BUY THERE TRANCEIVERS.
 >>MAYBE THEN THEY WILL LISTEN TO RADIOAMATEURS.
 >>
 >>WHY?
 >>
 >>This is an email (answer) I got in 2009 when I had talked to a Staff member
 >>of ICOM in Friedrichshafen.
 >>I left out the name of the sender because it was forwarded.
 >>
 >>****************************************************************************
 >>*********
 >>Dear Mr. Guy,
 >>
 >>I’ve just got an answer regarding "readout of the VFO B via PC / CI-V" .
 >>
 >>Unfortunately, it’s a negative response.
 >>For reasons of compatibility with other devices without a second VFO, ICOM
 >>Inc did not (and will not) include this function.
 >>We are sorry, but we cannot give you any other information.
 >>
 >>****************************************************************************
 >>********
 >>
 >>This is crap , because older transceivers can´t be updated via software
 >>new transceivers should not have this possibility?
 >>It's like driving a Ferrari with bicycle wheels.
 >>
 >>B4 the latest firmware you could only SET SPLIT ON/OFF,
 >>now you can also READ if SPLIT is ON/OFF.
 >>There is still NO READ VFO-B or should I say SUB VFO in ICOM language.
 >>
 >>How Paul implemented it in DX4WIN is in short like this
 >>Check split status
 >>Change to SUB-VFO (in our terms VFO-B)
 >>Read the freq and mode of SUB-VFO
 >>Change to MAIN-VFO (in our terms VFO-A)
 >>Read the freq and mode of MAIN-VFO
 >>Set SPLIT ON/OFF if needed
 >>
 >>This is the reason why you see the switching between MAIN/SUB
 >>
 >>Is it safe?
 >>I tested this out for many hours on my IC-7800 and had no problems even with
 >>dualwatch,
 >>but I have a second receiver in the radio and that is a big difference
 >>compared
 >>to the IC7600 and IC7700. My polling rate is at 2500 or even higher so the
 >>switching is not that often.
 >>Also because my antennas and other stuff are controlled from a station
 >>master where I can select the frequency he needs to use
 >>For switching between my antennas.
 >>I thought it was SAFE.................................
 >>
 >>But Friday night Dick,K7VC send me an email about the tests he did with his
 >>IC7700 and the new (v2 not available) rigfile.
 >>Freq and mode are readout ok for both Main and Sub VFO BUT He was testing
 >>with following settings
 >>(probably for the wpx-rtty contest SO2R)
 >>MAIN VFO 14090 FSK
 >>SUB VFO 28090 FSK
 >>
 >>With short pollings he had strange effects in  TX with his tuner because the
 >>radio
 >>was going shortly from 20m fsk to 10m fsk.
 >>I never tried this since I had it running only in same band.
 >>
 >>SO IT IS NOT SAFE AND THIS IS THE REASON WHY I ASKED JIM TO WITHDRAW THE
 >>RIGFILES FOR DOWNLOAD BECAUSE YOU CAN IMAGINE
 >>WHAT COULD HAPPEN IF THERE IS AN AMPLIFIER CONNECTED AND YOU ARE RUNNING ON
 >>DIFFERENT BANDS.
 >>
 >>I will check with Paul if it can be solved but I guess NOT
 >>The following command 1C0200FD or 1C0201FD could maybe help but never got
 >>any reaction from the transceiver when I tried out.
 >>Cmd 1C, Sub Cmd 02, Data 00,01 ===> Send Read transmit frequency monitor
 >>setting, (00=OFF, 01=ON)
 >>
 >>In worst case the support for SPLIT will be removed for ICOM radios until
 >>they come with a descent command for VFO-B
 >>
 >>There are other programs I tested out and they are acting the same or have
 >>other effects.
 >>
 >>
 >>The RS-BA1 that I own also does not do what we hoped for,
 >>It only read onetime but when retuning the sub-vfo you have
 >>to manually switch between Main and Sub to get it on screen.
 >>
 >>
 >>Guy ON4AOI
 >>
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DF> --
DF> Dick Flanagan K7VC
DF> dick at k7vc.com

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