Question about Radio Communications
I did a lot of digging around. Your FT-301 is a nice radio. However the service manual does not have the mic "pin out. " The Ham Forums do not have the mic wiring either. I did find that almost all mics are not wired the same as the Yaesu. Could you just buy a Yaesu mic? Sorry I cannot find this.
Posted on Nov 02, 2019
Looking at the end of the plug that goes into the 290 the pins are labeled, with the notch at the top, the connection to the right is pin 1 , counting clockwise connection 2 thru 6 (6 is to the left of the notch.) 7 centre
1mic earth and common return for up/down button via lock switch and ptt, 2mic, 3ptt, 4 +5V, 5 spkr, 6 up button, 7down button
Hope this helps
Posted on Jul 31, 2008
SOURCE: dm 452 microphone
this radio is made by PEIRCE SIMPSON and is wired like a cobra.
pin 1 shiels or ground
pin 2 is audio
pin 3 is transmit
pin 4 is recieve
shield is a bare wire wraped around the audio wire.i dont know the colors of the wires in the echo mic.the transmit wire will have contiuity with the shield wire when the mic is keyed that wiregoes to pin 3 . there should be 2 wires left. check these wires one at a time with the shield wire one will have contiunity . this wire will go to pin 4 recieve.the other wire will go with the shield wire on pin 1
this is the way you find how it wires. it will take an ohm meter to find whice wire goes where.
Posted on Mar 10, 2009
There is a users group on yahoo that you could join and ask your question. I am not too familiar with this radio and this is the best I could do...
Posted on Feb 14, 2010
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