Jeff, Mike , Duane,
Thanks for all of the information. I have got some good reading for a while.
In answer to Jeff's question, let's keep this simple for step one.
For this first link, I will be using Grainger radios and Grainger 6 channel
Mux's for our own amateur microwave system. Since it is our own system, amateur
radio will be the primary users for a change.
Channel one will be connected to Arcom RC-210 controllers on both ends
connected to Micor UHF Repeaters and Motorola half duplex link radios
connecting to other sites.
The second channel will be connected to Link-Com DSP-404 new series controllers
with Kenwood UHF repeaters connected to them.
Channel three may be the most interesting to make work as I am hoping to ship
AX.25 packet and WL2K traffic between sites to a internet gateway at one end.
One of the goals here is to get multiple amateur groups playing well together
for the betterment of the hobby. Each of the controllers and radios connected
to the three channels listed above belongs to separate amateur groups that have
equipment on both sites.
Joe - WA7JAW
--- In Repeater-Builder@yahoogroups.com, Jeff DePolo j...@... wrote:
It depends on what kind of EM interface it is. There are several (5, IIRC)
physical EM signalling/voltage types. Depending on which one it is, it
might be as simple as wiring COR and PTT directly to the E and M leads, or,
if the interface only will work with -48 VDC battery voltage levels, you'll
need to add additional interfacing circuitry (relays, optos, transistors,
whatever).
What kind of equipment are you interfacing (both EM trunk side as well as
radios)?
