Re: Topband: BCB High Pass Filter

Hi Roger, Pretty easy to build your own hi pass RX filter, and here is a link to a simple website I created that documents one of my builds which might give you some ideas (I use a dremel tool to quickly create the circuit board). http://sites.google.com/site/lwmwbandrejectfilter/ 73, Don

Re: Topband: BCB High Pass Filter

Consider making your own filters -Original Message- From: Roger White Sent: Thursday, March 03, 2016 10:59 AM To: topband@contesting.com Subject: Topband: BCB High Pass Filter Anyone have a BCB High Pass Filter that they would recommend? Seems like there were a number of sources

Re: Topband: BCB High Pass Filter

I noticed a bit of BC inter-mod so built a 9 pole Chebyshev high pass filter dead bug style in a small diecast box with some internal screening made from double sided pcb stock. I designed it with the excellent RF filter design package from Iowa Software, and used an LC meter to get the

Re: Topband: BCB High Pass Filter

Hi Roger, if you would not like to waste money then look and build this filter: http://www.ok1rr.com/index.php/technical-topics/40-an-efficient-mw-band-stop-filter 73 - Petr, OK1RP http://ok1rp.blogspot.com http://160mband.blogspot.com On Thu, Mar 3, 2016, at 05:46 PM, Roger White wrote: >

Re: Topband: BCB High Pass Filter

Sorry, that article is for the TX BPFs W3NQN receive BPFs are in the July/Aug 1999 issue of QEX. On 03/03/2016 01:54 PM, Eric NO3M wrote: Ed published a two (2) part article in May / June 1998 QST that discusses the design background (available in ARRL QST archives). _

Re: Topband: BCB High Pass Filter

Concur; the plug-in filters at the bottom right of the signal conditioner photo I sent earlier are homebrew BPFs based on W3NQN design criteria. Ed published a two (2) part article in May / June 1998 QST that discusses the design background (available in ARRL QST archives). The ones I built

Re: Topband: BCB High Pass Filter

I highly recommend the Array Solutions W3NQN BCB. I had a local BC station a few miles away developed problems resulting in IMD with an external preamp ON connected to a flag that rendered 160 unusable. The W3NQN BCB completely fixed the issue. Notified but I’ve no idea if the offending BC

Re: Topband: BCB High Pass Filter

That mirrors my experience. I've also got a pair of the ICE BCB receive only filters and would only recommend them if you don't need very deep attenuation. 73, Barry N1EU On Thu, Mar 3, 2016 at 12:25 PM, Jim Brown wrote: > Most of the bandpass filters I reviewed

Re: Topband: BCB High Pass Filter

gt; To: topband@contesting.com Sent: Thursday, March 3, 2016 4:46:41 PM Subject: Re: Topband: BCB High Pass Filter Everyone, thanks for the info. I really only need a Rx only filter. The DLWC BCB filter looks nice. BTW, does anyone know if Clifton Labs still in business? I thought I saw somewher

Re: Topband: BCB High Pass Filter

Most of the bandpass filters I reviewed and published in NCJ a few years ago provide very good rejection on the AM broadcast band. The ICE bandpass filter is the exception. http://k9yc.com/BandpassFilterSurvey.pdf At the end of the article there are links to response plots for each of the

Re: Topband: BCB High Pass Filter

$28.00 for this one... http://www.iceradioproducts.com/filtersrf.html From: Topband <topband-boun...@contesting.com> on behalf of Eric NO3M <n...@no3m.net> Sent: Thursday, March 3, 2016 10:09 AM To: topband@contesting.com Subject: Re: Topba

Re: Topband: BCB High Pass Filter

It states on the Clifton Labs homepage: "Clifton Laboratories is no longer in business. No products are available for sale or repair." However, the PDF manual including the schematic for the BCB high pass filter is here: http://www.cliftonlaboratories.com/Documents/Z10022A%20Manual.pdf It

Re: Topband: BCB High Pass Filter

Everyone, thanks for the info. I really only need a Rx only filter. The DLWC BCB filter looks nice. BTW, does anyone know if Clifton Labs still in business? I thought I saw somewhere they no longer sell products. I remember years ago they had some high quality products. Roger White W5RDW

Re: Topband: BCB High Pass Filter

I like this filter: http://www.dxengineering.com/parts/dlw-fl1718 73, Barry N1EU On Thu, Mar 3, 2016 at 10:59 AM, Roger White wrote: > Anyone have a BCB High Pass Filter that they would recommend? Seems like > there were a number of sources for these a number of years

Topband: BCB High Pass Filter

Anyone have a BCB High Pass Filter that they would recommend? Seems like there were a number of sources for these a number of years ago, but Google only came up with a few now. Roger White W5RDW Murphy, TX _ Topband Reflector Archives - http://www.contesting.com/_topband