Skip [None, 1; Skipsync [On/Off]; Snr - Microwave Data Systems MDS 9810 Installation And Operation Manual

46 MDS 9810 Installation and Operation Guide

SKIP [NONE, 1...8]

This command sets or displays which, if any, of the eight 3.2 MHz (128
frequency) zones will be skipped from the radio's hopping sequence.
Skipping zones is one way of dealing with constant interference on one
or more frequencies. See Section 3.3 (Page 10) for more information on
dealing with interference.
Figure 24 shows the frequency range covered by each zone. The com-
mand parameter is either the keyword
up to seven digits where each digit 1...8 represents a corresponding zone
to skip. (For zone parameter input, the digits can appear in any order and
can be optionally separated by a blank space.) The
read-only at remote radios. (Remotes must be synchronized with the
master radio to read the skip status.)
ZONE 1 ZONE 2 ZONE 3
902.200 905.400 908.600
to to
905.375 908.575 911.775
Figure 24. Frequency Zones for MDS 9810 Transceiver

SKIPSYNC [ON/OFF]

Selectively suppresses transmission of SYNC messages in skipped
zones (see command above). With
SKIP
ceiver will not transmit SYNC messages in skipped frequency zones.
This command is only available to transceivers that are set to be a master
( ). The default setting for this command is
MODE M
NOTE: Using
SYNCSKIP
cantly lengthen the time it takes a remote to achieve synchro-
nization with the master. (This will also manifest itself as very
slow RSSI reading response).

SNR

This command displays the signal-to-noise ratio of the received signal
expressed in dB. As used in this guide, the definition of signal-to-noise
is based upon the signal level following equalization, for valid frames
only. (A valid frame is defined as containing no more than one bit error,
and belonging to a frame addressed for the receiving radio.) SNR is
updated and latched for each valid frame received. A filter in the DSP
tempers the effect of any sudden changes in the value.
NONE
ZONE 4 ZONE 5
911.800 915.000
to to to
914.975 918.175
SKIPSYNC
when many zones are skipped will signifi-
or an undelimited string of
command is
SKIP
ZONE 6 ZONE 7 ZONE 8
918.200 921.400 924.600
to to to
921.375 924.575 927.775
set to , the trans-
ON
.
OFF
MDS 05-3301A01, Rev. C