Heathkit HM-2102 - Page 16

GegurarHrKit:
( )
Install
the
brown
wire
and
bead
combination
at
G
(S-1).
install
the
green
wire
and
bead
combination
at
F
(S-1).
Install the white wire and bead combination at C
(S-1).
Install the red wire and bead combination at B (S-1).
Page 13
) Cut off the excess lead lengths on the foil side of the
circuit board.
)
Carefully
inspect
the
foil
side
of
the
circuit
board
and
be
sure
that
all
the
connections
are
soldered
and
that
there
are
no
solder
bridges
between
foils.
NOTE:
Some
of
the
circuit
board
holes
and
one
capacitor
will
not
be
used.
This completes the “Step-by-Step Assembly.’’ Proceed to
the “Adjustment and Calibration” section.
ADJUSTMENT AND CALIBRATION
To perform the following steps, the Wattmeter must be
connected in the transmission line between the transmitter
and the load. An internal calibration circuit is provided for
the calibration steps.
NOTE: if you have an accurate VHF Wattmeter, you can
calibrate to it with similar results. The Wattmeter must also
be connected in series with your HM-2102 VHF Wattmeter.
~——__—— NUT STARTER
Figure 1
PREPARATION
(
) Prepare an alignment tool in the following manner:
Insert the 1/8” x 3/4” alignment tool blade into the
small end of the nut starter as shown in Figure 1.
Leave 1/4" of the blade exposed.
) Check to see that the meter needie is directly over the
zero on the scale. If it is not, adjust the screw on the
meter case slightly to position the needle over the
zero.
(
(
(
(
) Connect a 50 2 noninductive load, such as the
Heathkit Cantenna to the remote chassis OUTPUT
Jack.
) Connect the transmitter output to the INPUT jack.
PULL TO SET
SWR SENS.
HEATHKIT
HM-2102
SENSITIVITY
CONTROL AND
SWITCH
FUNCTION
SWITCH
Figure 2
) Set the FUNCTION switch to 25 (see Figure 2).
) Push the SWR SENS control knob in and turn the
control fully counterclockwise.