You can home build one for about $10.

See link below:

http://www.mindspring.com/~n2wwd/html/doppler_compensation.html http://www.mindspring.com/~n2wwd/html/doppler_compensation.html

73, Ken N2WWD

On Jan 7, 2019, at 3:27 AM, Laird Taylor lairdctaylor@gmail.com wrote:

I have an FT-736R and have just purchased MacDoppler from AMSAT. It will be installed in a MacBook running OS 10.13.6.

I’m shopping for a CAT cable to go between the two units. The guy at HRO said the original Yaesu cable to go with Macs has part# FIF-65A but I don’t see anything yet on Google by that moniker. He also said the Yaesu CAT cable for PCs is FIF-232C - which I DO see around.

Then I see a caution that there are lots of cheap cables around that use terrible chips that are a nightmare to keep running. The only cable I’ve found so far (on eBay) is $35 and the vendor doesn’t seem to admit which chip set is used. Amazon in the UK has a cable for sale for 16 GBP, which could be one of the cheaper ones.

Immediate questions:

1. What subset of the alleged plethora of available cables is MacDoppler compatible with CAT on the FT-736R?
2. Who sells such cables nowadays? So far I’ve found only eBay and Amazon; it’s not even clear they’re selling the same cable - never mind the one I must use...

73 Laird Taylor N7RSR _______________________________________________ Sent via AMSAT-BB@amsat.org. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb