User's Manual

17
P D L U ser's G uide
 Warning: Failure to transmit your station identification is in violation of FCC regulations. Use
 PDLCONF software to enter your FCC callsign.
Carrier Sense Multiple Access (CSMA)
CSMA is a technology implemented in the PDL Base to meet FCC transmitter requirements. CSMA
holds off the radio transmission if the frequency is currently being used by a co-channel user. On
occasion, you may note that the radio broadcasts stop for short periods of time. Most often, this is a case
of co-channel interference and the PDL Base is holding off broadcasts due to the FCC mandated CSMA.
GPS RTK equipment is designed to function with intermittent gaps in the data. Heavy co-channel use
may limit the ability of the PDL Base to transmit the required information. In areas of heavy co-channel
usage, try changing channels to a less used frequency.