User's Manual

7-4 December 1, 2000 68P81093C75-O
7. Once the power out is aligned, press F8 to save the settings
to the station codeplug.
4. Squelch:
1. From the Alignment Menu, tab over to the Squelch Adjust
field and press F2 to perform the alignment. The Squelch
control bar is shown in the center of the screen.
2. To open the squelch completely, press F2. To close the
squelch completely, press F4. To adjust the squelch
between fully open and fully closed, use the Pg Up/Pg Dn
keys on the PC.
3. Once the squelch is set, press F8 to save the setting to the
station codeplug.
5. ASTRO Bit Error Report:
1. From the Alignment Menu, tab over to the V.52 Rx BER and
RSSI Report, or PROJECT 25 Rx BER and RSSI Report.
2. Connect the R2670 Communications System Analyzer RF
“OUT” port to the Rx UHF-type connector on the station
top panel.
3. Set the generate frequency to the PDR 3500 receive
frequency, and the output level to –113 dBm, with
modulation either V.52 or Project 25 1011 Pattern
generation.
4. Press F2 to perform the alignment. The values for the report
will appear on the RSS screen.
Channel Information From the Main Menu, press F4. Press F4 again to arrive at the
Channel Information Screen. From this screen, the user may
configure the TX/RX frequencies, RF power out, modulation type,
and the various channel traits for up to 16 channels.
1. In this screen, first set the Rx1 and Tx frequency to the proper
values.
NOTE: The Rx2 frequency is set to 0.00000 MHz and cannot
be edited. This is because the PDR 3500 does not
allow for 2 receivers. The station will automatically
calculate the Tx Idle Frequency to be the same as the
Tx Frequency.
In most applications, the Tx Idle Frequency should remain the same
as the Tx Frequency. However, in case of portable or mobile radios
unsquelching near the PDR 3500, adjust the Tx Idle frequency to Tx
Frequency -6.25 kHz.
2. Set the modulation type to either Analog, ASTRO, ASTRO CAI,