First you need to check what freq range the unit is on. There were 3 ranges
for the MSR2000; 132-150.8, 150.8-162 and 162-174MHz. First one is easy,
just tune according to directions in manual. Second range is doable; third
one could get messy. The PA should be turned down to save the transistors
as the last time I saw a dead PA the final transistors were on a 6+ month
engineering hold.
There are 2 different backplanes, the one for full options is the easiest to
interface to. Module wisw you will need a station control module and the
timeout timer is a good idea if you don't have one in the controller. By
using the cards you list you could make a repeater using station control,
squelch gate and timeout timer. A better way to make a ham repeater is to
use the station control module and set up the unit as a full duplex rx and
tx then tie the appropriate signals to an external controller.
A good duplexer will be an absolute must or a lot of tower space ( 60 feet
vertical spacing min between Tx & RX antennas) and good feedline such as
double shielded coax (don't use 9913) or hardline.
good luck
Milt
N3LTQ
