AMERITRON ALS-1306, Руководство пользователя

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indicate voltage, are evenly spaced. The lower right scale (fig.2 ref 2B) is for power amplifier module voltages
HV1 and HV2 (0-70 volts).
Initial Operation
For your personal and equipment safety, double-check all wiring and connections (fig. 1) before turning power
on. After you have verified amplifier connections, follow the procedures below. The following steps are
necessary during initial checks:
1. Place the MULTIMETER switch (fig.2 ref 5) in the HV2 position. Place the ALC SET control (fig.2
ref 4) full clockwise (10 on knob scale). The multimeter is the right-side scale on the rightmost panel
meter (fig.2 ref 5B).
1. With the STANDBY/OPERATE switch (fig.2 ref 7) on STANDBY , turn the power switch (ref 8) ON .
2. There will be a slightly delayed “click” from the power supply. HV2 (fig.2, ref 2) should immediately
rise to near full scale, and after a slight delay, you should hear another “click”. The meters and the
appropriate
BAND LED (fig.2, ref 3) should illuminate.
3. The multimeter’s HV2 scale (fig.2, ref 2B, bottom right scale) should read between 45 and 55 volts.
4. Change the meter switch (fig.2 ref 6) to HV1 . The voltage should be the same as in step 4.
5. Rotate the BAND switch (fig.2 ref 3) through all positions. The appropriate BAND LED will illuminate,
and you should hear band-filter relays switch between 160-80, 80-40, 40-30, 20-17, 15-12, and 10-6
selector position changes.
6. Set the BAND switch (fig.2 ref 3) to a band where a good 50-ohm high-power load is connected.
7. Change the meter switch (ref 6) to REF . In this position, the multimeter indicates reflected power.
8. With no modulation in the FM, AM, RTTY, or CW mode, and the amplifier still on standby, adjust your
exciter power to about ten watts. This is to have a steady unmodulated carrier. Verify you have very low
power, ideally around 10-watts carrier (not critical), and
the antenna system VSWR is low. You should
see almost no meter deflection on the reflected power scale (fig.1 ref 2) with the MULTIMETER
switch in the REF position. If you see reflected power deflection, check your RF cables. Reminder:
You cannot use a tuner in your radio, or between your radio and this amplifier, to match the
antenna system. Antenna matching must be between the amplifier and the antenna, and the
antenna tuner and anything installed beyond the amplifier must conservatively be able to handle
over 1200-watts of carrier or peak envelope power.
9. Place the amplifier in OPERATE position (fig.2 ref 8). Be sure the BAND on the amplifier matches the
band selected on the transceiver.
10. Place the transmitter or transceiver into transmit in a FM, AM, RTTY, or CW mode. The green TX
LED (fig.2 ref 6) should light. The forward power (fig.2 ref 2A) should increase to over ten times the
initial exciter power reading. Reflected power should remain very low, and PA current should increase
slightly on both scales of the current meter (fig.2 ref 1A and 1B). No other LED’s should illuminate.
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