When pulsating noise, such as that caused by automobile ignitions is encountered, place the NB 1 switch ON.

This switch will not help to eliminate atomospheric or line noises, only pulse type noise.

Note:

NB 1 is disabled during FM operations.

18 NB level control

Controls the noise blanker operating level.

Use only the minimum level necessary.

19 1 MHz (UP/DOWN) key

Increases (UP) or decreases (DOWN) the displayed frequency in 1 MHz steps, throughout the entire frequency range of the receiver. Pressing and holding either key will cause the frequency to continuouslly step up or down as long as the key is held depressed.

20 HF/VHF key

Selects the HF or VHF band. If the optional VC-20 VHF Converter Unit is not installed, only HF band reception will be possible. When the VHF band is selected, the frequency of the VHF band is displayed momentary. Then the display will return to the HF band.

®TUNING knob (VFO)

Rotate the knob to select the desired frequency. Fast tuning is possible by rotating the knob rapidly. (Except in the FM and AM modes.) This knob may also be used to select the desired memory channel. The dial drag is adjustable by holding the outside knob and turning the inside knob clockwise to increase drag, and counterclockwise to de-

22 crease drag.

Program keys

M>V : Used to transfer a frequency from memory to the VFO.

SCAN : Pressing during VFO operation will initiate program scan, and pressing during memory operation will initiate memory scan.

CLEAR : Used to cancel memory storage operations, or to cancel an entry during direct keyboard entry of frequency using the ENT key.

VFO/M : Used to switch between memory or VFO operations.

M.IN : Used to enter data into a memory channel.

ENT : Used to directly enter a frequency from the numeric keypad.

23 PHONES jack

Output terminal for headphones.

24 REC (Recording) jack

This terminal may be used for recording broadcasts on tape.

(25 CLOCK and TIMER function switches

See page 25.

26 DIM (Dimmer) switch

For operator convenience, this switch selects either high or low intensity of both the digital display and meter illu- mination.

a VOICE switch

When the optional VS-1 Voice Synthesizer Unit is installed the operating frequency will be announced whenever the VOICE switch is depressed. For a dial frequency of 14.200.00 the frequency will be announced as: "one", "four", "point", "two", "zero", "zero", "zero", "zero".

Press this switch again to stop the announcement.

A. Display Panel

1 M CH display : Turns ON during a Memory Channel operation.

OSCAN display : Turns ON during scanning.

3VFO A/B diaply : Turns ON when VFO A (or VFO B) operates.

A (or B) display : Indicates the VFO which was operating before switching to memory Channel operation.

®* display : Turns ON while the TIMER oper- ates.

•STEP display : Turns ON while the STEP key is ON.

®Time display : Indicates current time.

: display

: Steady when the CLOCK does

 

not operate; blinks when CLOCK

 

operates.

15