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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*Topband\:\s+160\s+AM\s+BCB\s+filter\s*$/: 15 ]

Total 15 documents matching your query.

1. Topband: 160 AM BCB filter (score: 1)
Author: W0UN -- John Brosnahan <shr@swtexas.net>(by way of Bill Tippett<btippett@alum.mit.edu>)
Date: Sat, 20 Aug 2005 11:19:52 -0400
Nice filter for AM (1700 KHz) station reduction. http://www.dallas.net/~jvpoll/Filter/TheAMBrickWall.html _______________________________________________ Topband mailing list Topband@contesting.com h
/archives//html/Topband/2005-08/msg00037.html (6,866 bytes)

2. Re: Topband: 160 AM BCB filter (score: 1)
Author: "Richard (Rick) Karlquist (N6RK)" <richard@karlquist.com>
Date: Sat, 20 Aug 2005 09:44:23 -0700
With .7 or .8 dB insertion loss, the power dissipation is something like 15%. The writeup seems to claim it can be used in the transmit path. It would get fairly warm in a contest at 150W, and proba
/archives//html/Topband/2005-08/msg00040.html (7,893 bytes)

3. Re: Topband: 160 AM BCB filter (score: 1)
Author: W0UN -- John Brosnahan <shr@swtexas.net>
Date: Sat, 20 Aug 2005 14:23:21 -0500
It is a very mysterious site. And he never mentions his call or says much about who he is. Yet the work looks pretty good. I sent off an email inquiring about the details such as the schematic. We'll
/archives//html/Topband/2005-08/msg00045.html (7,687 bytes)

4. Re: Topband: 160 AM BCB filter (score: 1)
Author: "Jim McDonald" <jim@n7us.net>
Date: Sat, 20 Aug 2005 20:35:02 -0500
With .7 or .8 dB insertion loss, the power dissipation is something like 15%. The writeup seems to claim it can be used in the transmit path. It would get fairly warm in a contest at 150W, and probab
/archives//html/Topband/2005-08/msg00050.html (7,668 bytes)

5. Re: Topband: 160 AM BCB filter (score: 1)
Author: Barry Gross <barry.n1eu@gmail.com>
Date: Sun, 21 Aug 2005 02:00:27 +0000
A good comparison showing the superiority of the AM Brick Wall filter over the NQN filter for this application was included on the web page originally cited by W0UN. 73, Barry N1EU __________________
/archives//html/Topband/2005-08/msg00051.html (7,379 bytes)

6. Re: Topband: 160 AM BCB filter (score: 1)
Author: W0UN -- John Brosnahan <shr@swtexas.net>
Date: Sat, 20 Aug 2005 22:18:20 -0500
Barry, I THINK that the NQN filter in the referenced info was for the 100 watt BANDPASS one that was part of the six-band set in QST and available from Array Solutions. But NQN also had a HIGHPASS fi
/archives//html/Topband/2005-08/msg00053.html (8,720 bytes)

7. Re: Topband: 160 AM BCB filter (score: 1)
Author: "Henry Pfizenmayer" <pfizenmayer@worldnet.att.net>
Date: Sat, 20 Aug 2005 21:52:01 -0700
FWIW - I spent a few minutes looking at the filter and with 4 inductors I could see in the picture - leading to a 9 th order Elliptic Cauer- Chebyshev equal termination filter with ripple set to 0.03
/archives//html/Topband/2005-08/msg00054.html (9,222 bytes)

8. Re: Topband: 160 AM BCB filter (score: 1)
Author: "Jeff Maass" <jmaass@columbus.rr.com>
Date: Sun, 21 Aug 2005 04:38:43 -0400
I don't see any mention of the 'NQN BCB High Pass Filter (http://www.arraysolutions.com/Products/BCB%20RF%20Filters.htm#top%20of%20pageon) on the web page. The discussion of the W3NQN product is of
/archives//html/Topband/2005-08/msg00055.html (8,911 bytes)

9. Re: Topband: 160 AM BCB filter (score: 1)
Author: "Jim McDonald" <jim@n7us.net>
Date: Sun, 21 Aug 2005 08:52:14 -0500
I don't see any mention of the 'NQN BCB High Pass Filter (http://www.arraysolutions.com/Products/BCB%20RF%20Filters.htm#top%20of%20pa geon) on the web page. The discussion of the W3NQN product is of
/archives//html/Topband/2005-08/msg00056.html (8,248 bytes)

10. Re: Topband: 160 AM BCB filter (score: 1)
Author: "Jeff Maass" <jmaass@columbus.rr.com>
Date: Sun, 21 Aug 2005 14:16:22 -0400
Jim: No, The previous poster, whom I quoted, said that the subject "AM Brick Wall 160 Meter Filter" web page compared that filter to the 'NQN BCB filter. I said thate is no mention of the W3NQN **BC
/archives//html/Topband/2005-08/msg00059.html (9,736 bytes)

11. Topband: 160 AM BCB filter (score: 1)
Author: Bill Tippett <btippett@alum.mit.edu>
Date: Sun, 21 Aug 2005 15:35:14 -0400
in Allen, TX. No bounce on his email, so we'll just have to wait until he replies. I'll post any further info that I get. John et al, Everyone seems to have overlooked that WB5WPA referenced a very s
/archives//html/Topband/2005-08/msg00060.html (7,878 bytes)

12. Re: Topband: 160 AM BCB filter (score: 1)
Author: "Tom Rauch" <w8ji@contesting.com>
Date: Sun, 21 Aug 2005 21:55:40 -0400
filter loss at 1.8 the losses are Just to plug in some typical 1-3 MHz Q values with components... Typical medium size multi-layer silver micas (like CDE) in the few thousand pF range can be in the
/archives//html/Topband/2005-08/msg00062.html (9,355 bytes)

13. Re: Topband: 160 AM BCB filter (score: 1)
Author: Eric Rosenberg <wd3q@starpower.net>
Date: Tue, 23 Aug 2005 23:41:20 -0400
Living in Washington, DC, I am killed by intermod and other crud on 160. I live 5.5 miles from a 50 kw AMer on 1500 kHz. I've been working with Jim Poll on this filter, and have an engineering model
/archives//html/Topband/2005-08/msg00066.html (8,609 bytes)

14. Topband: 160 AM BCB filter (score: 1)
Author: "Doug Williams" <dougwill@dlwc.com>
Date: Mon, 10 Jul 2006 20:30:50 -0500
I built a few broadcast band reject high pass filters to experiment with and hopefully solve a problem I was having with a strong AM station less than 5 miles from my location. This signal was causin
/archives//html/Topband/2006-07/msg00014.html (7,335 bytes)

15. Topband: 160 AM BCB filter (score: 1)
Author: "Doug Williams" <dougwill@dlwc.com>
Date: Wed, 12 Jul 2006 16:12:52 -0500
Thanks to all who responded to my offer of a complementary broadcast band reject filter. Two recipients have been selected and notified: W3DQ and N1EU. Once they receive them I am sure they will be t
/archives//html/Topband/2006-07/msg00023.html (6,739 bytes)

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