0
0
0
0
FREQUENCY MOVES IN GREATER THAN 1 kHz STEPS WHEN
FINE TUNING
Tuning knob is being turned too fast. Use the finger dimple in the
tuning knob when fine tuning.
CANNOT PROPERLY RESOLVE SSB SIGNALS
Check that correct sideband is selected. Adjust the clarifier control
for best sound.
If
there is insufficient adjustment on the clarifier
control, return the clarifier to the central position and retune the
main tuning knob.
SOME SIGNALS PARTICULARLY AROUND
27
MHz ARE
DIFFICULT TO HEAR
That is because they are frequency modulated (FM). The receiver
does not have an
FM
facility, however, tuning off the centre of the
signal
will
allow these signals to be heard. This is commonly called
“slope detection”.
DISPLAY SHOWS RANDOM CHARACTERS
A
supply transient could upset the internal processor.
If
turning the
tuning knob does not clear the problem then press RST. This
performs a reset then returns to stored frequency display.
NB. The HF3 receiver is optimised for speech communications. When
listening to music, the audio response
will
be restricted.
The
HF3 receiver has no facility for external audio
output. The internal speaker is referenced to the positive rail. Any
connection made to the speaker other than through a capacitor
will damage the audio amplifier.
THIS UNIT
IS
PACKED WITH
A
12
VOLT D.C POWER CABLE
INCORPORATING A
1
AMP FUSE. CONNECT RED LEAD TO
POSITIVE AND THE LEAD WITH THE BLACK STRIP TO
NEGATIVE (SUPPLY REVERSAL WILL BLOW THE FUSE).
CONNECT TO
A
12
VOLT BATTERY
OR
A
REGULATED D.C
POWER SUPPLY. DO NOT EXCEED
13.8
VOLTS.
11
To Next Page
Loading...