[TenTec] Adapting a Kenwood mic to Ten Tec Scout

[Stuart Rohre]

OK, Jim,
Best for you to make two columns of pin numbers.  Make first col. the MC 
50 kenwood list of 1 to 4.  Then the next column are the pins to use on 
the Ten Tec Scout connector.  What I did for a similar case was to buy 
an inline female connector, and cross wire it with Scout mail connector. 
  That way, you keep the Scout standard Ten Tec Scout.  you can use 
short hookup wire of a couple of inches or even a four conductor 
shielded cable if you have it.  The shield won't connect anywhere in 
this adapter.

MC 50                 Scout
1  mic hi    goes to  1  mic hi
2  PTT       goes to  2 (gnd)
3  PTT hi         to    3  PPT Scout
4  mic lo    goes to  2 (gnd.)

This scheme keeps like pins together as much as possible.
It appears that the MC 50 has floating pins for separate mic and PTT 
lines, but Ten Tec Scout only uses 3 wires as above, ground is shared 
with low side  of mike and one side of the PTT line.

The mike I have adapted is at home, and I will have to check this with 
it.  But, this is they way it would be done if your pin numbers and 
functions are in agreement with my Scout manual.

It is good to make a drawing of the above chart connections to help you 
visualize.  Also, be aware the numbering of the connectors may be 
clockwise on one and counterclockwise on the other.  There are small 
numbers molded next to the pins on the solder side, as I recall the 
Scout four pin connector.  (four pins only because they bring out 
voltage for other uses).

If the MC 50 is that desk mike with PTT base buttons; be aware it is a 
dual impedance mike.  The plug at the back of the base is NOT keyed.
It must be plugged in so as to align one of tow color dots with a silver 
raised bar, to select either low impedance or high impedance. Otherwise 
your audio will be down 6 dB.

I have run high impedance high output mics like the unamplified D104 
crystal mike on my Scout.  But, I forget if the Scout was rated as 
taking a high or low impedance mike, but the hand mike used with it from 
another Ten Tec is probably low impedance.

GL,
Stuart Rohre
K5KVH