Neutralize finals

[Stewart D. Lyon]

Greg,
The problem is you are trying to measure RF with a AC/DC voltmeter. You need
a method of rectifing the RF into DC such as a RF Probe.

One method you could try is to increase the sensitivity of the existing Rel
Pwr circuit in the HW-101. This could be done by shorting out the 10K
resistor that connects to the antenna relay. I don't have a HW manual but on
the SB-101, it's R913. Then with the meter switch in some other position
than REL PWR, put your voltmeter between the "banded" end of the diode
(CR901?)and ground. It should give you a very sensitive indication.  Just
don't forget to remove the short when you are finish or you will be in the
market for a new diode.

The method of neutralizing that you are trying to use does a much better job
than the method in the manual.

73, Stu W6CUX

----- Original Message -----
From: "Greg Hockenjos" <nunu726 at lycos.com>
To: <HEATH at LISTSERV.TEMPE.GOV>
Sent: Monday, February 12, 2001 9:08 AM
Subject: Neutralize finals


> Hello. I have tried the method of neutralizing the finals on my hw-101
that is described by removing the 100 ohm resistor from pins 3 on V8 and V9
and disconnecting the red wire going into the final cage. When I try to get
a reading I get no voltage, ac or dc with the volt meter probe in the
antenna jack and the ground grounded, with the mic gain up or turned down.
Am I missing something? The radio neutralizes by the heath way in the manual
by turning the screw and checking minimum plate current and maximum power
out at the same setting. Greg.
>
>
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