Reading the front panel meter
300
250
100
0
200
150
50
50
75
25
100
0
DEVIATION kHz
AMPS VOLTS(X10)
5
2.5
10
0
7.5
PTEK
POWER Watts
300
250
100
0
200
150
50
50
75
25
100
0
DEVIATION kHz
AMPS VOLTS(X10)
5
2.5
10
0
7.5
PTEK
POWER Watts
300
250
100
0
200
150
50
50
75
25
100
0
DEVIATION kHz
AMPS VOLTS(X10)
5
2.5
10
0
7.5
PTEK
POWER Watts
300
250
100
0
200
150
50
50
75
25
100
0
DEVIATION kHz
AMPS VOLTS(X10)
5
2.5
10
0
7.5
PTEK
POWER Watts
Forward Power
The forward power reading is amount of power going to the
antenna. The example shown is a reading of 250 Watts. This
setting can be changed with the front panel raise lower
switch and should be set to the licenced power output (see
“calculation transmitter power setting”).
Reverse Power
The Reverse power reading is amount of power returning
from the antenna. The example shown is a reading of 2.5
Watts. A correctly matched antenna should not return any
power back to the transmitter. The ration of Reverse Power
to Forward Power in this example 2.5/250 would give a
return loss of 1% or -20dB this would classified as a good
antenna. Reverse Powers approaching 10% will cause the
transmitter to reduce the output power (See antenna VSWR
Effects)
Final Voltage (V)
This is the voltage applied to the output amplifier stage. The
example shown is a reading of 48 Volts. Used in conjunction
with the final current reading will give an alternate method
of measuring output power. (Output power = V*I*0.7). 0.7
is the efficiency of the output power amplifier.
Final Current (I)
This is the current consumed by the output amplifier Final
stage. The example shown is a reading of 8 Amps. Used in
conjunction with the final Voltage reading will give an
alternate method of measuring output power as described
above. This reading will change with output power setting,
also antenna match will give different results.
FINAL CURRENT
FINAL VOLTAGE
FORWARD POWER
REVERSE POWER
DEVIATION
Use the range selection switch
(shown Left) to select the meter
range
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