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4. Operating instructions
◎ Connect the AC power supply and push the red power button on the control box. A blue
LED will light up.
◎ Tune your receiver to the desired frequency.
◎ Now you need to select one of the 6 available band ranges, using the band switch
numbered from 1 to 6. Refer to the printed switch number / band range information on
the top of the control box.
Please note that position 6 is non-tunable, as the loop is wired to act as an amplified
whip antenna.
◎ Peak the received signal by turning the TUNING knob slowly to either the left or the right.
The white dot on the tuning know helps you to see the approximate location of the tuning.
For your reference, when the dot is on top as on the above illustration, the tuning PEAK
is approximately in the middle of the selected band.
For example for band switch position 1 (150kHz to 800kHz), it would be roughly peaked
on 475kHz.
Tuning is most critical above 3MHz. For best performance of LA800 and optimal
reception conditions, make sure the selected band is appropriate for the received
frequency, and search for the signal peak with the tuning knob.
◎ A loop antenna is very directional. Reception can be improved by using a third party
antenna mast rotator, and rotate the loop element until your receiver's signal strength
meter (S-meter) deflects to maximum and the incoming signal sounds clearest. If your
receiver does not have an S-meter, simply adjust for maximum received signal.
Band switch
6
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