RELM Communications Inc SRU50ABC 用户手册
S Series Repeater USER MANUAL
©RELM Communications Inc. Revision 1.0
36
DIP Switch 2 User Function Select
Switch Number
Description
Switch 1
PTT Delay
Inserts a 100mS delay for the Transmitter RF rise time. Must be
selected when using a coaxial simplex changeover relay to prevent
switching RF power.
Inserts a 100mS delay for the Transmitter RF rise time. Must be
selected when using a coaxial simplex changeover relay to prevent
switching RF power.
Switch 2
Simplex On
Selects simplex mode of operation.
Selects simplex mode of operation.
Switch 3
Tx Timer On
Transmitter is disabled after 2 minutes continuous use.
Transmitter is disabled after 2 minutes continuous use.
Switch 4
Repeater On
Selects automatic Receiver to Transmitter repeater function. The
Transmitter will also have a 2 second ‘hang time’.
Selects automatic Receiver to Transmitter repeater function. The
Transmitter will also have a 2 second ‘hang time’.
Switch 5
Tx VCO Cont
Enables the Transmitter’s VCO to operate continuously in ‘hot
stand by’ mode. This speeds up the Transmitter’s rise time to 4mS.
Caution: Low level signal leakage may affect the receiver’s
performance if the Transmitter is on the same frequency.
Enables the Transmitter’s VCO to operate continuously in ‘hot
stand by’ mode. This speeds up the Transmitter’s rise time to 4mS.
Caution: Low level signal leakage may affect the receiver’s
performance if the Transmitter is on the same frequency.
Switch 6
Tx FSK
Generates an FSK test signal. Not normally used.
Generates an FSK test signal. Not normally used.