Saturday, April 26, 2025

Yaesu YD-844 Microphone

 This is a Yaesu YD-844 mic that a friend in Western NC sent to me for repairs. He bought it on eBay for his Yaesu FT-901...but when it arrived, it didn't work on his rig.

I checked it over and found it incorrectly wired for his rig, found broken wires in the base of the mic, discovered some unknown "goo" where the cord entered the mic, and the 4-pin plug was missing a locking screw. On the bright side, the mic was in good cosmetic condition, the mic cartridge was in good shape, and the cord was fine.

I cleaned the sticky goo from the cord and mic, repaired the broken wires, rewired the connector, and replaced the missing locking screw. 

I also disabled the Yaesu "lift to talk" switch. I've found most hams hate this feature, and in my opinion, it was a horrible idea. A sprint loaded post extends out the bottom of the mic, and connects to a switch, inside. When the mic is lifted off the table, it keys the transmitter. It also keys the transmitter went bumped over on it's side for some reason. 

Here's a vid and a few pics. It's back at its new home, and being used on a FT-901. Great mic!