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Re: Re: 3373 & filter?



The item I used is this one:
http://www.downeastmicrowave.com/Mmic.htm

This material is low loss and the right thickness for 2400. If you use .0625
FR4 then it might be a little lossy.

Pieter

----- Original Message -----
From: "Kevin Uhlir" <kevinu@flochart.com>
To: "Pieter Ibelings" <rfspace@yahoo.com>; <amsat-bb@AMSAT.Org>
Sent: Thursday, May 10, 2001 1:47 PM
Subject: RE: [amsat-bb] Re: 3373 & filter?


> Thanks Pieter!
>
> What about a little scrap standard PCB material?
>
> and, is this the item you refer to?
>
> http://www.downeastmicrowave.com/pre-cat.htm
>
>
> Thanks!
> Kevin
>
> > -----Original Message-----
> > From: owner-AMSAT-BB@AMSAT.Org [mailto:owner-AMSAT-BB@AMSAT.Org]On
> > Behalf Of Pieter Ibelings
> > Sent: Thursday, May 10, 2001 12:31 PM
> > To: Kevin Uhlir; amsat-bb@AMSAT.Org
> > Subject: [amsat-bb] Re: 3373 & filter?
> >
> >
> > I had to make my own little boards. I used an MMIC teflon PWB
> > that down east
> > microwave sells. I was able to make both boards out of a single
> > mmic board.
> > If you remove the metal covers, you will find a copper stamped filter
> > suspended in the air. Don't take it appart until you have the board
> > material. You will also need some copper tape to ground it all around it
> > since the board is a little recessed and it is hard to bolt down.
> >
> > Pieter
> >
> > ----- Original Message -----
> > From: "Kevin Uhlir" <kevinu@flochart.com>
> > To: <amsat-bb@amsat.org>
> > Cc: <rfspace@yahoo.com>
> > Sent: Thursday, May 10, 2001 12:01 PM
> > Subject: 3373 & filter?
> >
> >
> > > I'm thinking about puting that 2450 +/- 50 filter into my 3373.
> > >
> > > I've looked at Pieter's photos of the mod.
> > >
> > > Pieter, did you have to make a pc board/stripline to install the
> > > filter, or does the photo show whats under the two metal blocks
> > > over the stock filters?  I only have 1 (one) 3373, it represents my
> > > only downlink capability, so I dont want to pull the metal blocks
> > > off unless i know its ok.
> > >
> > > Kevin
> >
> > ----
> > Via the amsat-bb mailing list at AMSAT.ORG courtesy of AMSAT-NA.
> > To unsubscribe, send "unsubscribe amsat-bb" to Majordomo@amsat.org
> >

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