Kenwood TS-530SP Instruction Manual page 10

16. PHONES JACK ®
The headphones jack allows use of a 4 to 16 ohm or
greater headphone through a 1/4" phone plug. When
phones are used the speaker is disconnected.
17. MIC CONNECTOR @
The four pin connector allows use of a microphone with
PTT Figure 2-1 B shows plug wiring. (Page 6)
18. MODE SWITCH
The mode switch selects type of emission, and TUNE.
TUNE -00-+e--e0 This position provides reduced carrier and
shorted key line for transceiver tuning. (In-
put power to the final section is reduced to
prevent tube damage during tune-up.) Use
this position to zero-beat an incoming CW
signal.
CW vvveseseeseeeee Used for CW operation.
USB vreeeeeees Used for upper-sideband operation. Inter-
national Amateur practice dictates the use
of USB on and above the 14 MHz band.
«- Selects lower-sideband. International Ama-
teur practice dictates the use of LSB on and
below the 7 MHz band.
19. MIC GAIN CONTROL @®
This contro! adjusts microphone amplifier gain for SSB
operation. Adjust for an on-scale ALC reading on voice
peaks.
20. NAR SWITCH ®
With optional filters installed, the IF bandwidth can be se-
lected by the Narrow Switch. The bandwidth varies with
filters being used. For details, refer to Narrow Switch on
page 16.
21. PROC (SPEECH PROCESSOR) SWITCH @
This switch is used during SSB operation. Set the switch
to the ON position and the speech processor will be activ-
ated, increasing the average talk power.
22. RF ATT SWITCH ®
With this switch ON, A 20 dB attenuator is_ in-
serted in the antenna circuit, protecting the RF amplifier
and mixer from overload on strong input signals.
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23. DIGITAL DISPLAY
The digital display indicates operating frequency to the
nearest 100 Hz.
24, ANALOG DIAL SCALE
The mono-scale permits direct analog frequency readout
over the O to 500 kHz range, graduated at 1-kHz intervals.
Opeating frequency equals the dial (in kHz) plus the BAND
switch frequency (in MHz). An additional 50 kHz both
above and below the 500 kHz range is also covered.
25. MAIN TUNING
This controls the VFO, selecting the transceiver's operat-
ing frequency. The indented knob is convenient for quick
tunig.
26. LOAD CONTROL @
This controls the loading of the network between the final
section and the antenna. Adjustment is described in Sec-
tion 4.
27. PLATE CONTROL @
This controls the plate tuning of the final amplifiers. Cali-
bration is approximate.
28. DRIVE CONTROL
This control tunes the plate tank circuit of the 12 B Y 7A
driver as well as the receiver's antenna and mixer coils. In
receive the DRIVE control is tuned for maximum sensitivity
(maximum S-meter deflection), and in transmit for a maxi-
mum ON-SCALE ALC reading. These points occur concur-
rently. Tuning for one also achieves the other.
29. RIT/XIT INDICATOR
This indicator will light when the RIT switch or XIT switch
is ON.
30. RIT/XIT CONTRL
This control allows the receive frequency, transmit fre-
quency or both to be shifted without using the main tuning
control. With the RIT switch ON, the RIT circuit is activat-
ed to shift only the receive frequency.
With the XIT switch ON, the XIT circuit is activated to shift
only the transmit frequency.
When both switches are ON, both frequencies are shift-
ed. The center (O) position equals no shift.