Specifications

2-3
The Doug Hall RBI-1 Remote Base Interface supports the Kenwood transceivers listed in
Figure 2-3. Not all transceivers are capable of remote control of CTCSS encoder
frequency and transmitter power settings. Consult the Kenwood manual.
140 MHz 220 MHz 440 MHz 1200 MHz DUAL BAND
TM-221 TM-321 TM-421 TM-521 TM-621 TM-731
TM-231 TM-331 TM-431 TM-531 TM-631 TM-701
TM-241 TM-441 TM-541 TM-721
Dual Repeater Mode
In the dual repeater mode the CAT-1000B will support a second repeater connected the
RF #2 port. PTT #2 will follow the activity of PTT #1. This means the second
repeater PTT will remain ON during the squelch tail period. PTT #2 will also be ON
when COR #2 is active. The CAT-1000B will support both repeaters in a cross band
configuration. To control the second repeater use the Link Connect [5001] and Link
Disconnect [5000] commands. If the two repeaters are separated, the second repeater
must be switched to another controller.
Dip Switch
A eight position dip switch is used to configure the CAT-1000B.
Switch 1
This switch determines Repeater COR input logic. Switch #1 should be ON if the
repeater receiver's COR is an active low and OFF if COR is active high.
Switch 2
This switch determines Transceiver COR input logic. This switch should be ON if the
auxiliary receiver's COR is an active low and OFF if COR is active high.
Switch 3 - Switch 4 - Switch 5
These switches configure the second RF port. They also define the type of serial
tuning when the CAT-1000B is set for remote base operation.
Mode Tuning Switch #3 Switch #4 Switch #5
Control Receiver None OFF OFF OFF
Dual Repeater None ON OFF OFF
Link (Backbone) None OFF ON OFF
Remote Base BCD OFF OFF ON
Remote Base Push Button ON OFF ON
Remote Base Doug Hall OFF ON ON
Reserved ON ON ON
Switch 6
This switch is used to initialize the CAT-1000B when the Program PROM is changed
during a software update. This will initialize and flush only the areas of memory
affected by the software update. Set this switch to ON and cycle power. The voice
will say: "ALTERNATE RESET DATA LOAD COMPLETED." Set switch #6 to the OFF position.
Switch 7
This switch is used to initialize the CAT-1000B. Set this switch to ON. Cycle the
power OFF and back ON. During power-up, the memory will be flushed and reloaded with
default values. The voice will say: "RESET DATA LOAD COMPLETED." Set switch #7 to
the OFF position.