MDS 05-4846A01, Rev. F
SD Series Technical Manual
49
•
Push-To-Talk Delay (ms)
—Allows programming a brief time delay
after a keying event, which must expire before the radio is
allowed to transmit. The allowable range is 0 to 255 ms, with the
default being 0.
•
Clear-To-Send Delay (ms)
—Allows programming a brief time delay
between when an RTS (ready-to-send) signal is received and
when the CTS (clear-to-send) signal is returned. The allowable
range is 0 to 255 ms, and the default is 0.
•
Automatic Freq. Correction
—Automatic Frequency Correction
(AFC), is used to counteract the slight RF frequency drift that
may occur over time or through wide swings of ambient temper-
ature.
•
Switched Carrier (B Modems)
—The Switched Carrier setting is only
for use on radios with “B” modem suffixes, and only applies to
remote radios. (“B” modems are intended for compatibility with
earlier MDS x710 radios.) In some networks, the master unit is
not keyed continuously, and transmits only when it has data to
send to remotes. This is known as
Switched Carrier
operation. In
such a network, the remote radios should have the Switched Car-
rier setting turned
ON
. The default setting is
OFF
.
•
RX Signal Attenuation
—This setting is intended for use in very
strong signal environments (-20dbm or stronger). It should be
kept off when working with normal or weak signal levels.
•
Force DCD to Asserted
—Some systems require a constant Data
Carrier Detect (DCD) signal. This setting allows the radio to be
configured to provide a DCD signal without the need for special
cabling.
