Kenwood TS-830S Instruction Manual page 17

Desired signal
Desired signal
Unwanted signal nulled by NOTCH
IF
SHIFT—@— NOTCH
NOTCH ON NOTCH OFF
Fig. 4-7 NOTCH Operation
(9) NOISE BLANKER (NB)
For pulse type noise, such as generated by automotive ig-
nition systems, turn the NB switch ON. Adjusting the NB
LEVEL control varies the blanker's threshold, eliminating
even low level noises.
(10) TONE CONTROL
Adjust this control to obtain desired tone quality.
CAUTION:
DO NOT turn the BANDSWITCH while the transceiver is in
transmit mode.
SS EEE © | Power meter
Fig. 4-8 Testing with a Dummy Load or Power Meter
1. Connect a 502 antenna for the band you will operate or a
dummy load, and connect a Key. SWR must be 2: 1 or
better. The life of the final tubes is directly related to
the SWR of the antenna, and to the length of tuning
periods.
2. Turn POWER and HEATER Switches ON.
. Place the MODE switch to SSB, METER switch to Ip.
CAUTION:
If the plate current is higher than 60 mA do not leave the
stand-by switch on for more than a few seconds.
Excessive
plate current shortens the life of the final tubes.
wo
Fig. 4-9 i
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