SureCall | 48346 Milmont Drive, Fremont CA 94538 | 1-888-365-6283 | [email protected]
28
700 MHz / 800 MHz
1. CENTER FREQUENCY:
This column is used to input the frequency of the channel.
For example, enter
869.000000
in the center frequency box of channel 1, and click the
Set
button. The channel will then
work at 869 MHz. The uplink channel will automatically work on the corresponding channel pair.
2. SWITCH:
Use the switch column to open or close a channel.
OFF
closes the channel
ON
opens the channel
3. UPLINK ATT
/
DOWNLINK ATT:
These columns are used to lower the gain of a single channel. Enter a positive value in the
range of 1-25.
4. UPLINK PIN
/
DOWNLINK PIN:
These columns show the input power of the uplink and downlink channels. This parameter
can only be queried.
5. BANDWIDTH COLUMN:
The bandwidth column is used to display the bandwidth of a particular frequency channel- from
12.5K, 25K, 75K
Sentry Configuration & Monitoring
ATTENUATION THROUGH SENTRY SOFTWARE IS CUMULATIVE
WITH THAT OF THE BOOSTER’S DIP SWITCHES.
ATTENUATION GREATER THAN 25 DB (EITHER MADE BY THE
BOOSTER’S DIP SWITCHES OR CUMULATIVE ADJUSTMENTS OF DIP
SWITCHES AND SOFTWARE) WILL CAUSE THE AFFECTED BAND TO
SHUT OFF AND DISPLAY A SOLID RED LED.
1
2
3
4
5
7.7 Sentry Operation
Leaving all DIP switches off by default allows the AGC to adjust gain as needed. The absence of red LEDs indicates that the
system is working as intended.
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