Product manual

Software Configuration Program

Figure 13: VOX Mode System Configuration Menu

Conventional Radio - TX on COR Communication Modes

There are two different COR communications modes, “COR, Tx on COR High” and

“COR, Tx on COR Low”. (See

Figure 11) These two communications modes are

designed for operation with a conventional radio interface where the Model 26 uses the

radio’s COR signal to detect channel availability. The only difference between these two

modes is the logic state the COR line is in when the channel is clear to transmit on.

If this mode is selected the VOX Control jumper (JP3) must be in the “B” position

(disable) and the COR Input Pull-up jumper (JP8) needs to be selected based on the

radio’s COR circuitry (refer to

Hardware Jumper Settings starting on page 19).