Service manual

Page 19

SVR-250 Service Manual

Channel Data

Note: The number of channels available is determined by the setting in Common Data.

Tx and Rx Frequency: Enter the Transmit and Receive frequencies 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 either CTCSS, DCS or Inverted DCS. These can be selected on a per channel basis, but

cannot be mixed with a channel.

Rx Code: The primary tone/code, when received will put the SVR-250 into portable-to-base repeat mode.

Emg/Dual Code: The secondary tone/code, when received will initiate an Emergency sequence or confirm

reception of other SVR-250s in an application with co-channel interference. Emergency and Dual tone are

mutually exclusive. See page 6 for a complete description of these modes.

Tx Code: In normal operation, the SVR-250 does not transmit sub-audible signalling. If enabled, the Tx code

should not be the same as the primary Rx Code. If Dual Tone mode is enabled, the Tx Code must match the

secondary code.

Lock Tone: This is the tone burst first transmitted when the SVR-250 is enabled and sent every 10 seconds if

ESP

priority mode is selected. The tone must be the same in all vehicular repeaters in the system.

PL Encode: If selected, sub-audible transmit is enabled for that channel.

EMG: If selected, the Emergency function is enabled for that channel. Emergency and Dual Tone are mutually

exclusive.

Dual Tone: If selected, the Dual Tone Receive function is enabled for that channel. Emergency and Dual Tone

are mutually exclusive.

NB: If selected, the channel BW is 12.5/15 kHz. If not selected the channel BW is 25/30kHz. Low Band is 20kHz

only. 700 and 900 MHz are 12.5kHz only.

Courtesy Beep: If selected, a short beep will be sent to the handheld user at the end of each portable-to-base

transmission to confirm they are still within range.

Aux Rx: If enabled under common data and selected for a channel, the non-priority SVR-250s will look to the

auxiliary receiver for mobile COR rather than to their own mobile radios.

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