Kenwood TS-850S User Manual download pdf (Page 12)

(i|) RIT/XIT frequency display

Shows the amount of RIT/XIT offset to the nearest

10 Hz. Minus “ —” appears in the display when the

RIT / XIT offset is below the transmit / receive

frequency.

Shows the scan speed during scanning.

Note

This switch is disabled during FM operation.

@ NOTCH control

The NOTCH function is used to reduce or eliminate

heterodyne, or CW type signals. The NOTCH filter

will not be effective against SSB, AM or FM type

signals.

@ SQL (Squelch) control

This control is used to eliminate atmospheric noise,

and receiver static noise during no signal periods.

Slowly rotate the control clockwise to the point

where the ambient noise just disappears, and the

speaker shuts off. This point is known as the

squelch threshold point. Now you will only hear

output from the speaker when an incoming signal is

present. For weak signal reception this control

should be fully counterclockwise.

@ NB LEVEL control

Controls the noise blanker operating level.

Use only the minimum level necessary.

(§) NB2 WIDTH control

This control varies the width of the blanking pulse of

NB2.

Notes

1. The NB2 control only works on woodpecker

type noise.

2. If the control is turned too far, the received

signal may be distorted. Set the control for the

best receive signal.

(24) RIT switch

Press to turn the RIT ON or OFF.

@XIT switch

Press to turn the XIT ON or OFF.

@NB 1 switch

For pulse type noise, such as generated by

automotive ignition systems, turn the NB 1 switch

ON.

This switch will not help to eliminate atmospheric or

line noises, only pulse type noise.

(^ NB 2 switch

Noise blanker 2 is used for long duration pulse

noise, like the “woodpecker”. To reduce

“woodpecker” radar noise interference, set switch

NB 2 to the ON position (NB 2’s effectiveness

depends on the specific type of interference). If you

use NB 2 for short duration pulse noise, the receive

signal may become distorted, making it difficult to

hear.

Unfortunately no noise blanker can remove all

different types of interference; but the two noise

blankers that have been provided in the TS-850 are

effective in most cases.

If there is no “woodpecker” present, the switch

should be in the OFF position.

® @ ® 0

(§) REC/SEND switch

This switch is used when you want to manually

control transmit or receive.

REC : Places the transceiver into receive.

SEND : Places the transceiver into transmit.

(§)THRU/AUTO switch

THRU : The auto antenna tuner is not used in

transmit.

AUTO: The auto antenna tuner is used in transmit.

(§) NOTCH switch

When this switch is ON, the notch filter is activated.

0 AT TUNE switch

When this switch is tuned ON and the THRU/AUTO

switch is placed in the AUTO position, the automatic

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Kenwood TS-850S User Manual Page 12

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