MFJ-836 SWR/Wattmeter and RF Ammeter
Instruction Manual
5
SWR/Wattmeter Calibration (cont.)
8.
With the
3000/300-Watts
button pushed
in
for the 600 Watt reflected scale,
Transmit 100 Watts as indicated on the reference meter. Adjust the HI REF trim
pot to set the reflected power scale to 100 Watts.
9.
SWR requires no calibration.
Figure 1
: SWR/Wattmeter and RF Ammeter Test Setup
Figure 2
: SWR/Wattmeter PCB Layout and Trim Pot Location
Transmitter/
Transceiver
Standard
Reference
Wattmeter
MFJ-836
SWR/
Wattmeter
and
RF
Ammeter
50-Ohm
Dummy Load
HI FWD
LO REF
HI REF
LO FWD
