Neutralization; Use As A Relative Field-Strength Meter - Heathkit HD-1250 Manual

Page
52
NEUTRALIZATION
1
.
Remove
the
final voltage
from the
transmitter.
2.
Apply power
to the
driver stage.
3.
Use
the
Dip Meter
in
the absorption
mode.
4.
Couple
the dip meter
coil
to the
output
of the
stage being neutralized.
5.
Adjust the Dip Meter to the
driver
frequency
to obtain
a
maximum
meter
deflection.
6.
Adjust the
neutralizing capacitor for
a
minimum
meter
reading.
USE
AS
A
RELATIVE FIELD-STRENGTH METER
Refer to Figure 3-5 for the following
steps.
1.
Connect
a short
antenna around
the dip meter pickup
coil
as
shown.
2.
Set the Dip Meter
for use
in
the absorption mode.
3.
Tune
the
Dip Meter
to the resonant frequency of the
transmitter output.
4.
Position the pickup antenna
at
various points around
the transmitting
antenna
to
determine
relative strength.
Figure 3-5