Service manual

Page 21
SVR-250 Service Manual
ARS-250 Programming
The ARS-250 is a 16 channel auxiliary scanning receiver that provides mobile COR to the SVR-250 logic in
half duplex systems that do not repeat car to car. The ARS-250 mounts inside the SVR-250 extrusion and is
programmed to the mobile transmit frequency. When the SVR-250 is at non-priority status and a portable-to-base
repeat condition exists, the ARS-250 COR output is sampled rather than the mobile COR. The Aux Rx option
can be enabled or disabled in the SVR-250 on a per channel basis.
The ARS-250 should be programmed with all mobile frequencies that will need to be monitored, including
CTCSS or DCS if needed. Programming the ARS-250 is done through the same programming socket (P7) as the
SVR-250, using the ARS-250CPS software:
Common Data
File Name: 15 character name for this profile stored in E²PROM.
Band: Select the frequency band to match your ARS-250. Changing bands resets all data to default values
(confirmation required.)
Number of Chans: Select the number of
channels to scan. Range 1-16.
Scan Speed: Scan speed is determined by the
time spent on each channel looking for carrier.
Default is 50mS (20 channels per second).
Decode Dwell Time: The amount of time the
receiver will pause to look for CTCSS or DCS
after Carrier is detected. If Dwell time is too
short, the receiver may not decode properly.
Channel Data
Note: The number of channels available is determined by the setting in Common Data.
Receive Frequency: Enter the Receive frequency for each channel. The frequency must be in the range for the
band selected under Common Data and will be rounded to the nearest channel step.
Squelch Type: Select Carrier Squelch, CTCSS, DCS or Inverted DCS.
Code: Select the CTCSS tone or DCS/Inv DCS code for each channel.
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