Kenwood TS-830S Instruction Manual page 21

@ SEMI-BREAK-IN OPERATION
The TS-830S has a built-in side-tone oscillator to permit
semi-break-in operation, besides the normal CW operation.
During semi-break-in operation, the transceiver is set in
transmit mode when the key is depressed, and returns to
receive mode when the key is released. For semi-break-in
operation, place the STANDBY switch to REC and turn the
VOX GAIN contro! ON. Adjust the DELAY control for your
preference.
A fixed channel is available for common use on all bands by
installing a crystal in the socket on the PLL unit
(X50-1680-00). The crystal frequency can be computed by
the following formula:
Crystal Frequency (MHz) = 5.5 MHz — X + Operating
Frequency (MHz).
X = Band Switch frequency (1.5, 3.5, etc.)
Crystal specifications: See Fig. 4-15
receive, and the RIT/XIT circuit are not effective in FIXED
'CHANNEL OPERATION.
To use the fixed frequency oscillator, depress the FIX push
switch.
OC+9V
Q1, Q2 :2SC1815(Y)
1.8K
100P * 0022
100 150 py
if
CRYSTAL SPECIFICATIONS
1. Type of holder: HC-25/u
I
2. Frequency: 5.5 ~ 6.0 MHz
3. Multiplication: Fundamental
4. Tolerance: 0.002% (Normal temperature)
5. Capacitance
6. Loading
7. Correction factor
8. Drive level
Fig. 4-15 Crystal Oscillator Circuit
4.6 DIGITAL DISPLAY CALIBRATION
Connect the antenna and set the BAND switch to WWV.
Turn the main tuning dial to receive 10 MHz WWV. Adjust
the dial until a low-frequency beat is heard. Next, turn the
MIC control to the CAL position and a marker signal will be
superimposed on the WWYV signal. A double beat (two beat
signals of high and low frequencies) will now be heard.
Adjust the IF shift for low AF response.
While receiving this double beat, adjust the Standard oscil-
lator trimmer through the reference frequency adjustment
access opening (on the bottom of the TS-830S) so the two
beats are heard as a single beat. Repeat this procedure 2 or
3 times. This completes calibration of the Digital Display.
After calibration turn of the CAL switch.
Access (STD.OSC. F.ADJ)
Insulated tuning tool
Fig. 4-16 Digital Display Calibration
4.7 ANALOG DIAL CALIBRATION
The dial scale is graduated at 1 kHz intervals. One revo-
lution of the main dial covers 25 kHz. To calibrate the scale,
turn the MIC control to the CAL position. Zero-beat in either
SSB or CW mode. Hold the main tuning knob from rotating
and slip the clibration ring to the nearest major (5 kHz)
graduation.
The dial is now calibrated.
NOTE: —
For exact frequency, read the Digital Display.
Pointer
Fig. 4-17 Analog Dial Calibration
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