Kenwood TS-480SAT Manual Do Utilizador
31
7 ENHANCED COMMUNICATIONS
FM REPEATER OPERATION
Most Amateur radio voice repeaters use a separate
reception and transmission frequency. The
transmission frequency may be higher or lower than
the reception frequency. In addition, some repeaters
may require the transceiver to transmit a subtone
before the repeater can be used.
reception and transmission frequency. The
transmission frequency may be higher or lower than
the reception frequency. In addition, some repeaters
may require the transceiver to transmit a subtone
before the repeater can be used.
Compared to simplex communication, you can
usually transmit over much greater distances by
using a repeater. Repeaters are typically located on
a mountain top or other elevated location. Often they
operate at higher ERP (Effective Radiated Power)
than a typical station. This combination of elevation
and high ERP allows communications over
considerable distances.
usually transmit over much greater distances by
using a repeater. Repeaters are typically located on
a mountain top or other elevated location. Often they
operate at higher ERP (Effective Radiated Power)
than a typical station. This combination of elevation
and high ERP allows communications over
considerable distances.
HF/ 6 m band repeaters operate usually in the
29 MHz FM sub-band and 51-54 MHz band. This
special service combines the advantages of FM
operation, good fidelity with noise and interference
immunity, with the excitement of HF DX (long
distance) communications. Even on a quiet day,
10 m FM provides reliable around-town
communications with the potential for sudden DX
from across the country or around the world.
29 MHz FM sub-band and 51-54 MHz band. This
special service combines the advantages of FM
operation, good fidelity with noise and interference
immunity, with the excitement of HF DX (long
distance) communications. Even on a quiet day,
10 m FM provides reliable around-town
communications with the potential for sudden DX
from across the country or around the world.
Note:
◆
When programming 2 separate frequencies using 2 VFOs, be
sure to select FM mode on both VFOs.
sure to select FM mode on both VFOs.
◆
When operating through a repeater, over deviation caused by
speaking too loudly into the microphone can cause your signal to
“talk-off” (break up) through the repeater.
speaking too loudly into the microphone can cause your signal to
“talk-off” (break up) through the repeater.
1 Press [A/B / M/V] to select VFO A or VFO B.
•
“tA” or “tB” appears to show which VFO is
selected.
selected.
2 Turn the Tuning control or MULTI control to select
the reception frequency.
3 Press [MODE] to select FM mode {page 19}.
4 Press [A=B/ SPLIT] to duplicate the frequencies
and other data to the other VFO.
5 Turn the Tuning control or MULTI control to select
the transmission frequency.
•
The frequency selected on this VFO will be
used for transmission.
used for transmission.
6 Press [NB/T/ 7] to turn the Tone function ON if the
repeater requires a subtone.
•
“T” appears.
•
Refer to “Selecting a Tone Frequency” for
more details on the subtone {page 32}.
more details on the subtone {page 32}.
•
To quit the Subtone function, press [NB/T/ 7]
twice.
twice.
7 Press [A=B/ SPLIT] (1 s).
•
“
” appears.
8 Press [A/B / M/V] to go back to the original
reception frequency.
9 Press Mic [PTT] to transmit.
•
The VFO changes to the other VFO to transmit.
•
Each time you press [A/B / M/V], the reception
and the transmission frequency are swapped.
and the transmission frequency are swapped.
10 Press [A=B/ SPLIT] (1 s) to quit split-frequency
operation.
•
“
” disappears.
The data that you select in steps 1 to 8 can be stored
in memory. Refer to “Split-Frequency Channels”
{page 51}.
in memory. Refer to “Split-Frequency Channels”
{page 51}.
Note:
◆
When operating through a repeater, over deviation caused by
speaking too loudly into the microphone can cause your signal
to “talk-off” (break up) through the repeater.
speaking too loudly into the microphone can cause your signal
to “talk-off” (break up) through the repeater.
◆
To check the tone frequency stored in a memory channel,
recall the desired memory channel, and press
recall the desired memory channel, and press
[NB/T/ 7] (1 s)
.
29.520 MHz
88.5 Hz
88.5 Hz
29.520 MHz
88.5 Hz
88.5 Hz
29.620 MHz
29.620 MHz