YSI 6200 - Manual (Page 108)

YSI 6200 DAS USER Manual
YSI/Massachusetts 508.748.0366, Fax 508.748.2543 Page 9-16
Radio Communication
Caution: Any type of RF work requires a certified technician/engineer.
Never use more RF power then required.
The RF transceiver is used “as is” from the factory. The simplex communication always starts at
the base station to the site(s). Because each base transmission packet contains site ID
information, only one site at a time will respond. If two sites inadvertently end up with the same
ID number, there will be a communication conflict, where the strongest signal or closest site
might win, in most cases the information just becomes gibberish to the base station and the
packet is discarded. Interference may come from other sources as well. Remember that the FCC
allows three customers per frequency in one general area.
SYMPTOMS POSSIBLE CAUSE ACTION REF
Depleted battery at site. Check battery voltage, replace if
necessary 4.3
Damaged base station
transceiver, or problems with
the serial interface connections Check serial connection, verify
transceiver is operational, and use
scanner to monitor the operating
frequency. If the tones sound raspy
or noisy then monitor the RF
information packet. The tones
should sound clear, not raspy. 6.3
Damaged base station RF cable
or antenna, RF connector
corroded. Check RF cables and base antenna,
repair or replace as needed. 6.3
Site is out of range. Check for line of site, too great a
distance between sites,
obstructions, such as wet foliage in
the summer time. Call factory for
suggestions. 6.3
RF connection
6200 DCP will not
respond to the base
station
Site antenna or cable damage Visit site, verify 6200 DCP is
operational. Check RF cables and
base antenna, repair or replace as
needed. 6.3