12
Operating Your BT1500A
1-800-773-7931 WWW.PALSTAR.COM
Before Operating
1.
To avoid possible damage to the BT1500A, set TUNE, IN-
DUCTOR, and POWER RANGE switches as outlined in the chart
below before applying transmitter power. (NOTE: the BT1500A
must be supplied with 12VDC for the switch functions and the
Peak/Peak Hold metering to work.)
2.
Begin tuning with your transmitter/amp that is feeding the
tuner set at a low output power setting (100 Watts).
Tuning
1.
Select the band and frequency of desired operation.
2.
Set TUNE and INDUCTOR controls to the suggested set-
ting before applying transmitter power (see chart - documented
with 270Ω non-reactive). Actual settings will vary from antenna
to antenna.
3.
Set your transmitter/amplifier to a low power output. If
your transmitter has a TUNE position, select that position.
4.
If you use a linear amplifier, set it to Standby. Do not use
the linear amplifier until the BT1500A is tuned.
Do not exceed
1000 watts continous (single tone) during operation
.
5.
Set RANGE switch to 300W (button out).
6.
Key your transmitter and adjust the power level for a
WARNING: DO NOT OPERATE THE BT1500A
WITH THE COVER OFF.
TUNING
SWITCH SETTING
INDUCTOR
SUGGESTED
ACTUAL
HI-C LO-C
HI-Z LO-Z
SUGGESTED
ACTUAL
160 M
66
HI-C
HI-Z
156
80 M
35
HI-C
HI-Z
184
40 M
20
HI-C
HI-Z
215
20 M
11
HI-C
HI-Z
231
17 M
15 M
35
HI-C
HI-Z
237
12 M
18
HI-C
HI-Z
238
10 M
15
HI-C
HI-Z
240
BAND
function only works if the unit is provided with
12VDC at the rear power jack.
5. INDUCTOR
. Two 22uH roller inductors mounted
in tandem, with turns counter.
6. POWER.
A two position button. When in the IN
position, turns on meter illumination and powers the Hi-
Lo Pass and Hi-Lo Capacitor switch functions and the
metering functions. The unit must be provided with
12VDC at the rear power jack.
7. RANGE.
Two-position switch selects the range of
FORWARD and REFLECTED power displayed on the
power meter.
When the RANGE button is OUT, the FORWARD
meter scale reads 300 watts full scale and the RE-
FLECTED meter scale reads 60 watts full scale.
When the RANGE button is IN, the FORWARD
meter scale reads 3000 watts full scale and the RE-
FLECTED meter reads 600 watts full scale.
8. PEAK/AVERAGE.
Selects between Average
power reading and Peak power reading. Active circuitry
provides a peak reading for SSB. For the Peak reading
function to work, the POWER switch (#6) must be on.
9. PEAK HOLD.
When the Peak reading function is
selected (#8), the Peak Hold provides an approximate
2 second hold at the peak level for easy viewing.
NOTE: The Peak Hold will function only if the PEAK
button (#8) and the Power button (#6) are depressed
as well.
ront Panel Description 9
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