Kenwood TS-B2000 Communicating Aids, RIT Receive Incremental Tuning, AGC Automatic Gain Control

9 COMMUNICATING AIDS

■Fine Tuning

The default step value when turning the Tuning control to change the frequency is 10 Hz for SSB, CW, and FSK modes, and 100 Hz for FM and AM modes. However, you can change the step size to

1Hz for SSB, CW, and FSK modes, and 10 Hz for FM and AM modes.

1Press [9/ FINE/STEP].

• “FINE” appears.

3Turn the RIT/ SUB control to change your receive frequency.

4To turn off RIT, press [RIT/ CW TUNE].

•The receive frequency is returned to the frequency that was selected prior to step 1.

Note:

◆RIT works only on the main transceiver.

◆When storing the frequency in a Memory channel with RIT function ON, RIT offset frequency is added or subtracted to/ from the VFO frequency. Then the calculated data is stored in the Memory channel.

2Turn the Tuning control to select the exact frequency.

3To quit the function, press [9/ FINE/STEP] again.

• “FINE” disappears.

Note:

◆Fine Tuning works only on the main transceiver.

◆If Menu No. 03 is ON, you cannot perform fine tuning in FM mode for all bands and AM mode for the 144 MHz/

430 (440) MHz/ 1.2 GHz (TS-2000 optional) bands.

■Equalizing VFO Frequencies (A=B)

This function allows you to copy the frequency and modulation mode of the active VFO to the inactive VFO.

1 Select the frequency and mode on VFO A or VFO B.

2 Press [A=B].

•The frequency and mode selected in step 1 are copied to the inactive VFO.

3Press [A/B] to confirm that the frequency was copied.

RIT (RECEIVE INCREMENTAL TUNING)

RIT provides the ability to change your receive frequency by ±20.00 kHz in steps of 10 Hz without changing your transmit frequency. If the Fine Tuning ([9/ FINE/STEP]) function is ON, the step size becomes 1 Hz. RIT works equally well with all modulation modes and while using VFO or Memory Recall mode.

1Press [RIT/ CW TUNE].

• “RIT” and the RIT offset appear.

2If required, press [CLEAR] to reset the RIT offset to 0.

AGC (AUTOMATIC GAIN CONTROL)

When using a mode other than FM, AGC selects the time constant for the automatic gain control circuit.

Selecting a slow time constant will cause the receiver gain and S-meter readings to react slowly to large input changes. A fast time constant causes the receiver gain and the S-meter to react quickly to changes in the input signal. A fast AGC setting is particularly useful in the following situations:

•Tuning rapidly

•Receiving weak signals

•Receiving high-speed CW

Unlike other transceivers, the TS-2000’s digital AGC circuit allows you to adjust the time constant from slow to fast in 20 steps, where 1 is the slowest and 20 is the fastest. Furthermore, you can switch the AGC OFF if you desire.

For your convenience, the following default AGC time constant has already been programmed.

SSB: Level 7	CW: Level 12
FSK: Level 14	AM: Level 5

To change the default time constant:

1Press [8/ AGC/OFF].

•The AGC time constant scale appears on the sub dot-matrix display.

2To select a slower time constant, turn the MULTI/ CH control counterclockwise. The bar indicator moves from F(ast) to S(low). To select a faster time constant, turn the MULTI/ CH control clockwise. The bar indicator moves from S(low) to F(ast).

3If you want to turn the AGC OFF, press [FUNC], [8/ AGC/OFF].

Note: You cannot adjust the AGC time constant on the sub-receiver.

38