TH-K2AT/K2E/K2ET

ADJUSTMENT

Single Tone Mode

This mode is used to check the DTMF deviation.

Operation

■16key (K, K2, M, M2 and E3 types)

1.Press the [PTT] key on the transceiver to switch to the transmission mode.

2.Press the [MONI] key to enter the single tone mode.

3.Press any key from [1] to [8] keys to transmit a single tone. The single tone is consisting of eight frequencies.

[1]697Hz

[2]770Hz

[3]852Hz

[4]941Hz

[5]1209Hz

[6]1336Hz

[7]1477Hz

[8]1633Hz

4.When the [MONI] key is pressed again during the transmission, the transceiver switches to the reception mode, the single tone mode turns OFF.

■4key (E type)

1.Press the [PTT] key on the transceiver to switch to the transmission mode.

2.Press the [MONI] key to enter the single tone mode.

3.When the [VFO] key is pressed during the transmission, a DTMF “D” dual tone (combination of 1633 Hz and 941 Hz frequencies) is transmitted.

4.When the [MR] key is pressed during the transmission, single-tone 1633 Hz is transmitted.

5.When the [MONI] key is pressed again during the transmission, the transceiver switch to the reception mode, the single tone mode is turned OFF.

•The single tone mode can be enabled only during the transmission.

•When DTMF memory is transmitted in the single tone mode, the single tone mode turns OFF.

Adjustment Mode

This mode is used to replace or readjust the IC15 (EEPROM). Adjust the following adjustment items after setting the

transceiver to “Adjustment Mode”.

■Adjustment Items

A. Overvoltage warning reference voltage (14.8V [DC IN])

B.Battery terminal reference voltage (7.5 V [Battery terminal])

C.Squelch (SQL1, SQL2)

D.S-meter (Two segments in S-meter light, all segments in S- meter light)

E.RX BPF (Lower limit frequency, center frequency, upper limit frequency)

F.7.5V TX H power (Lower limit frequency, center frequency, upper limit frequency)

G. 7.5V TX M power (Lower limit frequency, center frequency, upper limit frequency)

H. 7.5V TX L power (Lower limit frequency, center frequency, upper limit frequency)

I.13.8V TX H power (Lower limit frequency, center frequency, upper limit frequency)

J.13.8V TX M power (Lower limit frequency, center frequency, upper limit frequency)

K.13.8V TX L power (Lower limit frequency, center frequency, upper limit frequency)

L.DCS modulation balance

M.Tone deviation (Lower limit frequency, center frequency, upper limit frequency)

N. DCS deviation (Lower limit frequency, center frequency, upper limit frequency)

O. VOX sensitivity (Level 1, level 9)

■Operation in Adjustment Mode

1. Turn the transceiver ON.

2. Set the tone frequency to 151.4 Hz and the DCS code to 023 in Menu Mode to adjust tone and DCS modulation.

3. Set Adjustment Mode by shorting two lands (SET) on the component side of the TX-RX unit (A/3).

Short these two lands

SET

4.When the Adjustment Mode is set, the “Overvoltage warning reference voltage (14.8V [DC IN])” adjustment item is displayed. (The “” icon on the upper side of the LCD blinks while the transceiver is in the Adjustment Mode.)

The current adjustment value is displayed at the lower digits of the frequency display, and the value stored in the EEPROM is displayed on the memory channel number display.

Blink

The value stored in the

EEPROM. (00-FE)

Adjustment item Current adjustment value (00-FE)

5.The functions of transceiver keys in Adjustment Mode are as follows:

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