[VHFcontesting] Yaesu FT-736R

Terry Signature terry at directivesystems.com
Sat Jul 8 12:49:18 EDT 2017

Partially correct - yes the FT736 only takes commands, there is no 
feedback or polling. I wrote a program on an old CP/M system back in 
1983 when I got my FT736 but without polling, it's not very useful. Most 
modern software doesn't support the rig either. The only items you can 
poll is the s-meter (pretty useless) and the status of the squelch 
(almost as useless!!). You could also set up the duplex for crossband 
operation. The radio came with the CAT interface but it's a DIN 
connector and operates at TTL levels so you need to use a MAX232 or 
similar chip to get RS232 levels. I think Yaesu's incarnation was a 
FIF-232 but the Kenwoood unit for a TS850 worked with the correct pinout 
on the DIN.

Hope this helps!

Terry Price, W8ZN
On 2017-07-08 09:48, Peter Laws wrote:
> On Sat, Jul 8, 2017 at 8:26 AM, Ethan Miller K8GU <ethan at k8gu.com> 
> wrote:
>> If I recall
>> correctly, the 736 has an unusual computer control arrangement in that
>> frequencies may be commanded to it, but it has no facility to read
>> back the frequency.
> And that the computer "control" card was optional - not all radios had
> them.  I thought I read that on this group - if there are archives for
> this list, it might be worth a grep.

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