Recently, I asked the amsat-bb list if its members knew of any obscure CAT controlled radios which I might doppler tune with my satpack project. Sergej, UZ2HZ, kindly pointed out to me the FT-727R. According to the previous link, "All serial data consists of single byte binary codes sent at 4800 baud, TTL levels, with two INVERTED stop bits and one INVERTED start bit." Yikes. Still, the price might be right for this HT.
Another possibility is the Yaesu FT-5100. It can be controlled at ttl levels with a modified mike interface.
Video: Farhan in the SolderSmoke Shack! BITX, JBOTS, McDonald Straw Sig Gen, uBITX, Sweperino and more! - Thanks again to Farhan for visiting us. It was great to see his reaction to my humble implementations of his great designs. I got him to sign my BITX17. ...
14 hours ago