Kenwood TS-590S Manuel d'utilisateur télécharger pdf (Page 32)

ENHANCED COMMUNICATIONS

SPLIT-FREQUENCY OPERATION

Usually you can communicate with other stations

using a single frequency for receiving and

transmitting. In this case, you select only one

frequency on either VFO A or VFO B. However, there

are cases where you must select one frequency for

receiving and a different frequency for transmitting.

This requires the use of 2 VFOs. This is referred to

as “split-frequency operation”. One typical case which

requires this type of operation is when you use an FM

repeater {page 25}. Another typical case is when you

call a rare DX station.

When a rare or desirable DX station is heard, that

operator may immediately get many simultaneous

responses. Often, such a station is lost under the noise

and confusion of many calling stations. If you find that

you are suddenly being called by many operators, it

is your responsibility to control the situation. You may

announce that you will be “listening up 5 (kHz, from

your present transmission frequency)”, or “listening

down between 5 and 10 (kHz)”.

1 Press [A/B (A=B)] to select VFO A or VFO B.

• “

” or “ ” appears to show which VFO is

selected.

2 Select an operating frequency.

• This frequency will be used for transmission.

• To copy the selected VFO frequency to the

other VFO, press and hold [A/B (A=B)].

3 Press [A/B (A=B)] to select the other VFO.

4 Select an operating frequency.

• This frequency will be used for reception.

5 Press [SPLIT].

• “ ” appears.

• Each time you press [A/B (A=B)], the reception

and transmission frequencies are swapped.

6 To quit split-frequency operation, press [SPLIT]

again.

• “

” disappears.

TF-SET (TRANSMISSION FREQUENCY SET)

TF-SET allows you to temporarily switch your

transmission frequency and reception frequency.

Canceling this function immediately restores the

original transmission and reception frequencies.

By activating TF-SET, you can listen on your transmit

frequency, and change it while listening. This allows

you to check whether or not the newly selected

transmission frequency is free of interference.

1 Configure split-frequency operation as explained in

the previous section.

2 Press and hold [TF-SET], then turn the Tuning

control or press Mic [UP]/ [DWN] to change the

transmission frequency.

• The transceiver receives on the frequency as

you change, but the frequency shown on the

sub-display (the original reception frequency)

stays unchanged.

3 Release [TF-SET].

• You are now receiving again on your original

reception frequency.

Successfully contacting a DX station in a pileup

often depends on making a well-timed call on a clear

frequency. That is, it is important to select a relatively

clear transmission frequency and to transmit at the

exact instant when the DX station is listening but the

majority of the groups aren’t transmitting. Switch

your reception and transmission frequencies by using

the TF-SET function and listen to your transmission

frequency. You will soon learn the rhythm of the

DX station and the pileup. The more proficient you

become at using this function, the more DX stations

you will contact.

Note:

◆ TF-SET is disabled while transmitting.

◆ You can change the transmission frequency even when the

Frequency lock function is ON.

◆ An RIT offset frequency is not added; however, an XIT offset

frequency is added to the transmit frequency during TF-SET.

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Kenwood TS-590S Manuel d'utilisateur Page 32

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