PM-30 SWR/Power Meter
Owner's Manual
1
PM-30 SWR/Power Meter
INTRODUCTION
The PM-30 can simultaneously measure and display forward
power, reflected power, and SWR in the frequency range of 1.8 to
60 MHz. Accuracy of the readings is assured because the PM-30
features a true shielded directional coupler. The back lit meter
can also display either peak or average power readings.
SPECIFICATIONS
FREQUENCY RANGE: ...............................1.8 to 60 MHz
POWER RANGE: .........................................300 and 3000 W
Ranges
METER LAMP: ............................................12 Vdc with on/off
switch
OPTIONAL ADAPTER:...............................Vectronics AC-12
DIMENSIONS: .............................................5.3"W x 5.75"D x
3.5"H
WEIGHT: ......................................................1.2 lbs.
CHASSIS:......................................................Alodine
Plated
Aluminum
FRONT PANEL CONTROLS
ON/OFF.........................................................Meter Lamp Switch
3000W/300W ................................................Range Switch
PEAK/AVG...................................................Selection Switch
REAR PANEL CONNECTIONS
RF OUTPUT .................................................SO-239 Connector
RF INPUT .....................................................SO-239 Connector
POWER CONNECTOR................................2.5mm coaxial type
jack
PM-30 SWR/Power Meter
Owner's Manual
2
INSTALLATION
1. Connect the coax connector labeled
RF INPUT
to the
transmitter using PL-259 connectors. If using an antenna
tuner, the PM-30 should be placed between the transmitter and
antenna tuner.
2. Connect the coax connector labeled
RF OUTPUT
to the
antenna using a PL-259 connector. If using an antenna tuner,
the
RF OUTPUT
is connected to the antenna tuner input.
Note:
Vectronics recommends using high quality coax cable
for all coax connections.
3. If a lighted meter is desired, a 9-12Vdc power supply, such as
the AC-12, must be connected to the power jack on the back of
the unit. This is a 2.5mm coaxial type jack with the center
positive.
OPERATION
1. Set the desired power range by using the push-button switch on
the front panel labeled
POWER 3000W/300W
. With the
switch in the out position, the
300W
range is selected. When
the switch is locked in, the
3000W
range is selected.
2. The Peak Reading feature may be switch on/off by using the
push-button switch labeled
POWER PEAK/AVG
. Peak
reading is activated when the switch is locked in.
3. SWR is indicated at the intersection of the two meter pointers.
While transmitting, read the SWR from the red SWR line
nearest the intersecting point.