[1000mp] tip: switching in extra band filters for reception

Gian Luca Cazzola [email protected]
Mon, 29 Apr 2002 19:14:40 +0100


I use between the IN and OUT connectors on the MP an KAY rf attenuator (O to
41dB in 1 dB steps), very good  expecially in contests for keeping the
lowest band noise with a less tiring reception.
I am thinking to insert here also an MFJ 1025 noise reductor and  a passive
preselector.
It is also a good place, expecially for us European, to insert a narrow
(10 - 20 khz) two or four pole quartz filter for 40 meter (as those produced
by INRAD-W2VJN) for deleting the 50dB over S9 broadcasting.
73
Ian IK4EWX


----- Original Message -----
From: "Anders Larsson" <[email protected]>
To: <[email protected]>
Sent: Sunday, April 28, 2002 4:35 PM
Subject: Re: [1000mp] tip: switching in extra band filters for reception


> Hi,
> Bandpass filters for receive only using the IN and OUT connectors on the
MP
> sounds like an excellent idea. I have searched the web and have found the
> W3LPL design. Does anyone know of other filter designs for such an
> application?
> Andy DF3IAL
> [email protected]
>
> At 11:56 27-04-02, you wrote:
> >Hi,
> >Found this article on the VA3CR website.
> >In cases where the MP gets overloaded with signals (this is in my case
> >160m with a large antenna) it is easy to switch in an extra narrow
> >bandfilter. This use of the backside connectors of the MP was absolutely
> >new to me!
> >In this article a ANC4 is switched in.
> >Read all about it.
> >http://www.qsl.net/va3cr/files/FT1000MP%20and%20ANC-4.txt
> >
> >73, Arie PA3AAM
> >
> >
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