Kenwood TS-480SAT, TS-480HX instruction manual FM Repeater Operation, Enhanced Communications

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.

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.

HF/ 6 m band repeaters operate usually in the

29MHz 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,

10m 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.

◆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.

29.520 MHz
88.5 Hz	29.620 MHz

29.620 MHz	29.520 MHz
	88.5 Hz

1Press [A/B / M/V] to select VFO A or VFO B.

•“tA” or “tB” appears to show which VFO is selected.

2Turn the Tuning control or MULTI control to select the reception frequency.

3Press [MODE] to select FM mode {page 19}.

4Press [A=B/ SPLIT] to duplicate the frequencies and other data to the other VFO.

5Turn the Tuning control or MULTI control to select the transmission frequency.

•The frequency selected on this VFO will be used for transmission.

6Press [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}.

•To quit the Subtone function, press [NB/T/ 7] twice.

7Press [A=B/ SPLIT] (1 s).

•“” appears.

8Press [A/B / M/V] to go back to the original reception frequency.

9Press 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.

10Press [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}.

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.

◆To check the tone frequency stored in a memory channel, recall the desired memory channel, and press [NB/T/ 7] (1 s).

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