Palstar AT4K Owner's Manual - page 9
12
Operating Your AT4K
1-800-773- 7931 W W W .PALST AR.CO M
CAUTION — Before Operating
1. To avoid possible damage to the AT4K set INPUT, OUT-
PUT, and INDUCTOR controls as outlined in the chart be-
fore applying transmitter power.
2. Begin tuning with your transmitter/amp into the tuner set
at a low output power setting (100-150 Watts).
Tuning
1. Select the band and frequency of desired operation.
2. Set INPUT, OUTPUT, and INDUCTOR controls to the
suggested settings before applying transmitter power (see
chart below). Actual settings will vary from antenna to an-
tenna.
3. Set your transmitter/amplifier to a low power output
(100-150 watts). If your transmitter/amplifier combination
has a LOW POWER position, select that position to obtain
the 100-150 watts for the initial tune-up.
WARNING: DO NOT OPERATE THE AT4K
WITH THE COVER OFF.
INPUT CAP
OUPUT CAP
INDUC TOR
BAND
Sug-
gested
Actual
Sug-
gested
Actual
Sug-
gested
Actual
160 M
59
64
81
80 M
57
66
169
40 M
53
77
206
20 M
44
43
210
15 M
21
19
222
10M
21
12
229
d. TUNED COAX 1 Selects COAX 1 connector through the
impedance matching T circuit.
e. TUNED COAX 2 Selects COAX 2 connector through the
tuner matching T circuit.
f. BALANCED OUT Selects the balanced output connectors
located after the impedance matching circuit.
3. PEAK HOLD Select (IN) to hold Peak readings for approxi-
mately 2 sec. on the SWR meter.
4. PEAK Select PEAK (IN) or AVGERAGE (OUT) power read-
ings.
5. RANGE Select metering range: 3000 Watts (IN) or 300
Watts (OUT).
6. POWER Select (IN) to turn on Peak/Hold metering with
backlight.
7. INDUCTOR 24 µH, continuously variable, steatite ceramic
core roller inductor driven by a crank handle. Maximum induc-
tance is a turns counter reading of zero, minimum inductance is
228.
8. TUNED OUTPUT BALANCED (IN) lifts ground off roller
inductor for balanced line feed. Direct/Tuned switch must be in
the TUNED BALANCED LINE position. COAX (OUT) puts di-
rect ground on roller inductor for coax feed. Direct/Tuned
switch must be set to TUNED Coax 1 or Coax 2.
9. OUTPUT Continuously adjustable output capacitor with
Vernier. Minimum capacitance is zero on dial and 100 is maximum
capacitance.
10. INPUT Continuously adjustable input capacitor with
Vernier. Zero is minimum capacitance and 100 is maximum ca-
pacitance.
Front Panel Description
9
1-800-773- 7931 W W W .PALST AR.CO M