1. OPERATION

14

1.14 Operation with an External Receiver
When the receive signal is particularly w e ak or the internal receiver is producing only bl urred
recordings, you may wish to receive facsimile broadcasts with an external receiver.

1.14.1 Enabling, disabling extern al receiver use

1. Press the PRG key followed by the 1 key.
2. Press the 1 key to use the internal receiver, or press th e 2 ke y to use an external receiver.
3. Press the E key.

1.14.2 Operation

Beat adjustment

When using an external rec eiver whose beat frequency is adjustable within a range of ±2 kHz or
more by means of a beat knob, set the frequency dial so the deflection of the receiver’s S-meter
is maximum, and adjust the beat knob so that the center LED of the tuning indicato r of this unit is
lit. When a signal from a station with ISB communication (U.S. Naval Station Guam, Pearl Harbor,
San Francisco, etc.) is received, sometimes an adjustment of the frequency is necessary, with a
variable condenser, because the frequency may shift from the nominal frequency of the station by
±2 kHz.

Bandwidth

Increase bandwidth when no ise is few, and lower band width by about 1 kHz when noise is great.

Recording

Set up for recording referring to par agraph 1.6 (automatic) or paragraph 1 .7 (manual). For reverse
reception, set the mode on the external receiver to BFO (Beat Frequency Oscillator), or switch
between LSB (Lower Sideband) and USB (Upper Sideband).
AF IN : INT
1-INT 2-EXT