[bars] AFSK Serial modems?

William Smith w_smith at compusmiths.com
Fri Sep 4 09:03:22 EDT 2020


In doing a little spring cleaning, I discovered a trio (no idea why 3) of RS-232->AFSK modems which I was going to use on my teleoperations project.

They have DB-25s on the serial side, phono connectors on audio in and out, and use 2211 and 2206 modulator/demodulator chips.  A MAX232 chip does level translation to RS-232.



It looks like I put them in aluminum boxes, so they are ready to go.  No idea when/where I got the boards, but if someone wanted to play around with them, they probably work...  7 pots, so looks like lots of adjustability.

Free for pickup in North Reading, or I can ship them at your expense.

Willie
N1JBJ

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