Kenwood TS-2000 Operation Manual - Page 42
Fm Repeater Operation, Enhanced Communications, Programming An Offset
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8 ENHANCED COMMUNICATIONS FM REPEATER OPERATION When using FM mode, you may access a repeater to enjoy long distance communications. Repeaters, which are often installed and maintained by radio clubs, are usually located on mountain tops or other elevated locations. Generally they operate at higher ERP (Effective Radiated Power) than a typical station. This combination of elevation and high ERP allows communications in FM over much greater distances than FM communications without using repeaters. Most repeaters use a receive and transmit frequency pair with an offset. In addition, some repeaters must receive a tone from the transceiver before it allows access. Repeaters are available on the 29, 50, 144, 430/ 440 MHz, and 1.2 GHz bands (TS-2000/ TS-B2000 Optional). For further information, including repeater frequencies, consult your local repeater reference. This transceiver provides the following three methods for programming two separate frequencies: • Using the Split-Frequency function {page 31} • Programming an offset (29, 50, 144, 430/ 440 MHz and 1.2 GHz bands) • Storing in a Split-Frequency channel {page 59} Note: ◆ When programming two separate frequencies using two 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 PROGRAMMING AN OFFSET When using the 29, 50, 144, 430/ 440 MHz or 1.2 GHz band (TS-2000/ TS-B2000 Optional), selecting a single frequency and an offset is another method for programming two separate frequencies. Unlike the Split-Frequency function, this method requires only a single VFO. Note: If you store offset settings in a memory channel, you need not reprogram each time. Refer to "MEMORY FEATURES" {page 58}. ■ Selecting an Offset Direction 1 Select a receive frequency. 2 Press [0/ SHIFT/OFFSET] to switch the offset direction. • Select whether the transmit frequency will be higher (+) or lower (-) than the receive frequency. • "+" or "-" appears to indicate which offset direction is selected. • To program the -7.6 MHz (430 MHz) or -6.0 MHz (1.2 GHz) offset on all E-types, repeatedly press [0/ SHIFT/OFFSET] until "=" appears. If the offset transmit frequency falls outside the allowable range, transmitting is inhibited. Use one of the following methods to bring the transmit frequency within the band limits: • Move the receive frequency further inside the band. • Change the offset direction. Note: ◆ You can only change the offset direction while in FM mode. ◆ While using an odd-split memory channel for transmitting, you cannot change the offset direction. ■ Selecting an Offset Frequency To access a repeater which requires an odd-split frequency pair, change the offset frequency from the default which is used by most repeaters. The default offset frequencies are as follows. Band K-type All E-types 144 MHz 430/ 440 MHz 1.2 GHz ±600 kHz ±5.0 MHz ±12.0 MHz ±1.6 MHz -7.6 MHz ±35.0 MHz -6.0 MHz As for the 29 and 50 MHz bands, the default offset is set to 0 MHz (Simplex). Program the desired offset frequency for these bands. 1 Press [FUNC], [0/ SHIFT/OFFSET]. 2 Turn the MULTI/ CH control to select the appropriate offset frequency. • The selectable range is from 0.00 MHz to 59.95 MHz in steps of 50 kHz. 3 Press [FUNC], [0/ SHIFT/OFFSET] again to complete the setting. All E-types only: If you have selected " =" for the offset direction, you cannot change the default (-7.6 MHz or -6.0 MHz). 32
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