TH-K2AT/K2E/K2ET
27
ADJUSTM ENT
Single Tone M ode
This mode is used to check the DTM F deviation.
Operation
■
16key (K, K2, M , M 2 and E3 types)
1. Press the [PTT] key on the transceiver to sw itch to the
transmission mode.
2. Press the [M ONI] 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. W hen t he [M ONI] key is pressed again during t he
transmission, the transceiver sw itches to the reception
mode, the single tone mode turns OFF.
■
4key (E type)
1. Press the [PTT] key on the transceiver to sw itch to the
transmission mode.
2. Press the [M ONI] key to enter the single tone mode.
3. When the [VFO] key is pressed during the transmission, a
DTM F “ D” dual tone (combination of 1633 Hz and 941 Hz
frequencies) is transmitted.
4. When the [M R] key is pressed during the transmission,
single-tone 1633 Hz is transmitted.
5. W hen t he [M ONI] key is pressed again during t he
transmission, the transceiver sw itch to the reception mode,
the single tone mode is turned OFF.
• The single tone m ode can be enabled only during the
transmission.
• When DTM F memory is transmitted in the single tone
mode, the single tone mode turns OFF.
Adjustment M ode
This mode is used to replace or readjust the IC15 (EEPROM ).
Adjust the follow ing adjustment items after setting the
transceiver to “ Adjustment M ode” .
■
Adjustment Items
A. Overvoltage w arning reference voltage (14.8V [DC IN])
B. Battery terminal reference voltage (7.5 V [Battery terminal])
C. Squelch (SQL1, SQL2)
D. S-meter (Tw o segments in S-meter light, all segments in S-
meter light)
E. RX BPF (Low er limit frequency, center frequency, upper
limit frequency)
F. 7.5V TX H pow er (Low er limit frequency, center frequency,
upper limit frequency)
G. 7.5V TX M pow er (Low er limit frequency, center frequency,
upper limit frequency)
H. 7.5V TX L pow er (Low er limit frequency, center frequency,
upper limit frequency)
I. 13.8V TX H pow er (Low er limit frequency, center frequency,
upper limit frequency)
J. 13.8V TX M pow er (Low er limit frequency, center frequency,
upper limit frequency)
K. 13.8V TX L pow er (Low er limit frequency, center frequency,
upper limit frequency)
L. DCS modulation balance
M .Tone deviation (Low er limit frequency, center frequency,
upper limit frequency)
N. DCS deviation (Low er limit frequency, center frequency,
upper limit frequency)
O. VOX sensitivity (Level 1, level 9)
■
Operation in Adjustment M ode
1. Turn the transceiver ON.
2. Set the tone frequency to 151.4 Hz and the DCS code to
023 in M enu M ode to adjust tone and DCS modulation.
3. Set Adjustment M ode by shorting tw o lands (SET) on the
component side of the TX-RX unit (A/3).
4. W hen the Adjustm ent M ode is set, the “ Overvoltage
w arning reference voltage (14.8V [DC IN])” adjustment item
is displayed. (The “
” icon on the upper side of the LCD
blinks w hile the transceiver is in the Adjustment M ode.)
The current adjustment value is displayed at the low er digits
of t he f requency display, and t he value st ored in t he
EEPROM is displayed on the memory channel number
display.
5. The functions of transceiver keys in Adjustment M ode are
as follow s:
Short these tw o lands
SET
Adjustment item
Blink
The value stored in the
EEPROM . (00-FE)
Current adjustment
value (00-FE)
