Motorola HT 1000, Руководство пользователя

Страница: 148 / 205

142
Field Definitions
Channel Use the UP/DOWN arrow keys or the F3 and F4 keys to scroll through
the available channels.
Programmed Use the UP/DOWN arrow keys to enable/disable channel positions.
When a channel is disabled (i.e. this field is set to Yes) for an HT 1000
or JT1000 radio, the radio will indicate an invalid channel by sounding
a continuous alert tone when the radio user selects this channel using
the appropriate rotary switch. A VISAR radio will NOT display a channel
or allow unprogrammed channels to be selected.
When a channel is disabled (that is, this field set to No), navigation to any
other field on this screen other than the Channel number and the
Programmed/Unprogrammed field will NOT be allowed.
Rx Frequency (MHz) Enter the Receive Frequency directly in MHz. It must be divisible by
6.25 kHz or 5.0 kHz, or by 2.5 kHz for VHF HT 1000/VISAR models. The
RSS will allow frequencies inside the bandsplit only. DO NOT enter the
decimal point. The RSS assumes its presence.
Note: With the receive frequencies listed below, there is a
potential for the HT 1000 or VISAR radio to generate
interference which will quiet its own receiver. The following
RECEIVE frequencies should therefore be avoided if possible.
If these
frequencies are used, radio may performance could be
degraded
.
Tx Frequency (MHz) The valid range of the Transmit Frequency depends upon the radio’s
bandsplit. The transmit frequency, in MHz, can be entered directly
using the number keys but must be divisible by 6.25 kHz or 5.0 kHz or
by 2.5 kHz for VHF HT 1000/VISAR models. The RSS will allow
frequencies inside the bandsplit only. DO NOT enter the decimal point. The
RSS assumes its presence.
Talkaround Use the UP/DOWN arrow keys to enable/disable this feature.
Talkaround is used most often the situation where the radio is set up
to be operated on a repeater, but is being used in an area which is out
of the repeater's range. In this case, the radios transmit and receive on
the same frequency in a simplex (also referred to as Direct) manner.
The Talkaround field allows a radio (on a channel-by-channel basis) to
transmit and receive on the repeater transmit frequency instead of
transmitting and receiving on different frequencies. Enabling
Talkaround on a channel is functionally equivalent to programming
the Tx and Rx frequencies to the same value (and the use of HT 1000
toggle switch for switching between Direct and Repeat modes).
Therefore, this field will not be visible for VISAR models.
151.0175 MHz 420.0000 MHz 487.2000 MHz
151.2000 MHz 436.8000 MHz 504.0000 MHz
151.0325 MHz 440.1000 MHz 513.4500 MHz
168.0000 MHz 453.6000 MHz 856.8000 MHz
403.2000 MHz 470.4000 MHz