> -----Original Message-----
> From: topband-bounces@contesting.com
> [mailto:topband-bounces@contesting.com]On Behalf Of Dick and Adele
> Bingham
> Sent: Tuesday, February 28, 2006 12:39 PM
> To: topband@contesting.com
> Subject: Topband: high power filters
>
>
> Greetings everyone
>
> See my comments below ==>
> .........................................................
> Message: 4
> Date: Tue, 28 Feb 2006 06:01:24 -0500
> From: "Tom Rauch" <w8ji@contesting.com>
> Subject: Re: Topband: high power filters
> To: "Dick" <knaap159@zonnet.nl>, <topband@contesting.com>
>
> > I want something that I can use behind a 160m MOSFET
> > amplifier, which haven't much filtering in the output.
> > The amp has to be runned in a multi-multi station.......
>
> BIG SNIP
>
> The only good solution is to build a simple multiple section
> low pass filter using transmitting components. Don't try to
>
> ANOTHER BIG SNIP
>
> 73 Tom
> ......................................................
> Tom and others have provided many good suggestions.
>
> You might also check some of the construction techniques
> provided in a _Microwaves & RF_ magazine article titled
> "Designing High-Power Series Inductors And Shunt Capacitors"
> published October 1987 pp 97-98, 101, 103, 105 and 107.
>
You might also consider the commercial solution offered
by W3NQN and sold by WX0B at Array Solutions.
>58 db rejection 3.4 to 10 MHz, <0.5 db insertion loss,
rated 2 kW. Not cheap ($520), but available off-the-shelf.
http://arraysolutions.com/Products/wx0bbpf6.htm#2%20kW
73, Jeff K8ND
_______________________________________________
Topband mailing list
Topband@contesting.com
http://lists.contesting.com/mailman/listinfo/topband
|