46 SD Series Technical Manual MDS 05-4846A01, Rev. D
disruption of the wireless network. The TX time-out is cleared
when the keying source goes away and the radio keys again.The
default selection is ON (transmitter shuts down when time limit is
reached).
• TX Time-Out Delay (sec)—Sets the time delay, after which a keyed
transmitter is taken offline. The default time-out setting is 30 sec-
onds.
• Datakey—Determines whether or not the radio is configured to
key (transmit) upon receipt of payload data at its interface port.
The default setting is ON.
• RTS Key—Determines whether or not the radio is configured to
key (transmit) upon receipt of an RTS (ready to send) signal at its
interface port. The default setting is ON.
• 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.
To Next Page
Loading...