[amsat-bb] FT 736R

Mark Spencer mspencer12345 at yahoo.ca
Sat May 21 13:50:06 UTC 2016

Hi,   I seem to recall running my FT 736 with sat32 pc running on a Windows 98 laptop (it has been some time since I have worked any satellites.)

I used a generic USB to RS232 converter unit and a home brew RS232 to yaesu computer control interface that came with my radio.  Sorry I don't have a schematic for it.

There are some schematics floating around for the RS 232 to yaesu computer control interface.

This link seems helpful but I can't vouch for it's accuracy as I haven't tried building the circuit.  


If I was building an interface today  I'd probably skip the RS 232 step and try using a USB to 5 volt TTL serial converter (I'd want to double check the voltage levels on the radio interface first but the prior URL implies to me that the voltage levels are 5 volt TTL which seems reasonable to me given the age of the radio.)

Most of the USB to serial interfaces I've seen are 3.3 volt but I seem to recall seeing 5 volt ones advertised.

Hope this helps

Mark S

Sent from my iPhone

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