Hy-Gain LP-1009A, Инструкция по эксплуатации

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Troubleshooting
If you encounter problems with the operation of
your LP-1009, follow these steps to isolate the
cause of your problem.
Usually you can isolate problems that occur in
either your antenna or coaxial feedline or balun. If
you experience high VSWR on some frequency
bands, look for assembly errors in the antenna
element lengths and log-periodic feedline connec-
tions or nearby resonant structures or antennas.
If you have high VSWR on all frequencies, look
for shorts, opens or water in the coaxial feedline.
The balun and coaxial cable may also have been
damaged by lightning.
Symptom: Possible Causes:
VSWR above 3:1 on all frequencies. Shorted coaxial connector.
Water inside of coax.
Coax damaged by lightning.
Balun damaged by lightning.
Antenna too close to roof.
Antenna too close to ground.
Balun not connected to antenna.
VSWR above 2:1 on all frequencies. Antenna too close to roof.
Antenna too close to ground.
Antenna too close to wires.
VSWR above 2:1 from 13 - 14 MHz. Antenna too close to ground.
Beta tubes assembled wrong.
Element #11 or #12 not
assembled or connected right.
VSWR above 2:1 from 14 - 16 MHz. Antenna too close to ground.
Element #10 or #11 not
assembled or connected right.
VSWR above 2:1 from 16 - 20 MHz. Check elements 7, 8, 9, 10.
VSWR above 2:1 from 20 - 25 MHz. Check elements 5, 6, 7, 8.
VSWR above 2:1 from 25 - 30 MHz. Check elements 2, 3, 4, 5.
VSWR above 2:1 in one 200 KHz spot. Adjust Beta short position.