[Hallicrafters] Re: An AM antenna
Bill Krause
bkrause at sos.net
Sun May 2 21:52:06 EDT 2004
Well that certainly is something I never knew. I have a feeling this
thread is going to teach me a lot of things.
Bill
Glen Zook wrote:
>One thing that often is the case, the r.f. amplifier
>stage of many general coverage receivers is "padded"
>so that the gain in the AM broadcast band is not as
>great as on the rest of the bands. This is because
>the very strong, high powered stations, tend to
>overload the receiver. As such, to prevent this from
>happening, the manufacturer lowered the gain in the
>540 KHz - 1700 KHz range.
>
>You might look at the schematic and find the loading
>resistor(s) and remove them. You may have to reduce
>the r.f. gain control when listening to local stations
>but then can increase it when looking for "DX".
>
>Glen, K9STH
>
>On Sun, 02 May 2004 12:55:20 -0700 Bill Krause
><bkrause at sos.net> writes:
>
>Using a variety of shortwave antennas ranging from
>dipoles with traps to long wires I get very little AM
>reception, day or night, on any of my various
>Hallicrafters boat anchors or modern SWL rigs.
>
>Would my best bet be to try and work with one of my
>old Hallicrafters or should I concentrate on one of
>the modern SWL rigs.
>
>=====
>Glen, K9STH
>
>Web sites
>
>http://home.comcast.net/~k9sth
>http://home.comcast.net/~zcomco
>
>
>
>
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