Table 3-1. Receiver Control Operator Controls and Instruments - continued

TM 11-5865-215-13

Table 3-1.

Receiver Control Operator Controls

and Instruments - Continued

Function

Control or instrument

Causes receiver to change frequency in l-kHz steps

FINE

when in MAN TUNE operation.

(S38)

Causes receiver to change frequency in 5-kHz steps

MEDIUM

when in MAN TUNE operation.

(S39)

Causes receiver to change frequency in 10-Hz steps

COARSE

when in MAN TUNE operation.

(S40)

LAMP INTENSITY

Controls intensity of all li ghting on receiver con-

MIN/MAX

trol front panel.

(potentiomenter R4)

SWEEP/STEP RATE

Controls rate of frequency changes in AUTO SWEEP mode

MIN/MAX

or rate of receiver command changes in AUTO STEP mode.

(potentiometer R3)

Sweep rate selections are modified by selected re-

eiver IF bandwidth. This ensures that the sweep rate

is not too fast fox the receiver in the selected

bandwidth. MIN change rate is 11 s per change. MAX

change rate is 0.7 s per change.

Changes in MANUAL TUNING mode, the receiver frequency

MANUAL TUNING

in], 5, or 1.0 kHz steps at a rate of 50 steps per

(shaft encoder A1)

revolution when respective FINE, MEDIUM, or COURSE

key is also pressed.