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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*Topband\:\s+BCB\s+interference\s+\?\s*$/: 19 ]

Total 19 documents matching your query.

1. Topband: BCB interference ? (score: 1)
Author: Ed Stallman <n5dg@airmail.net>
Date: Mon, 22 Sep 2014 08:50:45 -0500
Has anyone used this High Pass Filter ? http://www.dunestar.com/store/160-Meter-Highpass-Filter-pid-8.html I found I have a 25KW AM 1520 Khz BC transmitter 12 miles from me , is that close enough to
/archives//html/Topband/2014-09/msg00116.html (6,922 bytes)

2. Re: Topband: BCB interference ? (score: 1)
Author: "Hardy Landskov" <n7rt@cox.net>
Date: Mon, 22 Sep 2014 07:07:42 -0700
Ed, I have the same problem. A 25KW station at 1560 KHz just destroys the front end of my K3. Elecraft did not do a vey good job on their front end filtering but that's another issue. I finally had t
/archives//html/Topband/2014-09/msg00117.html (8,686 bytes)

3. Re: Topband: BCB interference ? (score: 1)
Author: Lloyd Berg N9LB <lloydberg@charter.net>
Date: Mon, 22 Sep 2014 12:14:42 -0400 (EDT)
Hi Ed! I've got a 1650 KHz 10 KW station about six miles away. I am using a Clifton Laboratories Z10022A high pass filter for 160 meter reception. Works great and very reasonable price. http://www.cl
/archives//html/Topband/2014-09/msg00119.html (9,502 bytes)

4. Re: Topband: BCB interference ? (score: 1)
Author: Lloyd Berg N9LB <lloydberg@charter.net>
Date: Mon, 22 Sep 2014 12:17:46 -0400 (EDT)
Hi Ed! I've got a 1650 KHz 10 KW station about six miles away. I am using a Clifton Laboratories Z10022A high pass filter for 160 meter reception. Works great and very reasonable price. http://www.cl
/archives//html/Topband/2014-09/msg00120.html (9,518 bytes)

5. Re: Topband: BCB interference ? (score: 1)
Author: Stan Stockton <wa5rtg@gmail.com>
Date: Mon, 22 Sep 2014 10:21:04 -0600
Why can't you come out of Ant out jack through filter and back in through ant in jack and select RX antenna? Stan, K5GO Sent from Stan's IPhone _________________ Topband Reflector Archives - http://w
/archives//html/Topband/2014-09/msg00121.html (10,086 bytes)

6. Re: Topband: BCB interference ? (score: 1)
Author: Jim Brown <jim@audiosystemsgroup.com>
Date: Mon, 22 Sep 2014 09:42:08 -0700
Not if you put the filter in the RX loop. That feature is part of the KXV3 and KXV3A modules. Also, many AM broadcast stations are licensed for a lot less power at night than during the day. Check th
/archives//html/Topband/2014-09/msg00122.html (8,334 bytes)

7. Re: Topband: BCB interference ? (score: 1)
Author: "Hardy Landskov" <n7rt@cox.net>
Date: Mon, 22 Sep 2014 10:02:31 -0700
Bill, The HPF article was in QST, Feb 1978, p. 22. Hardy Do you have a link to that W3NQN article? I'm only familiar with his work with bandpass filters, and I'm looking for a good highpass filter de
/archives//html/Topband/2014-09/msg00124.html (8,847 bytes)

8. Re: Topband: BCB interference ? (score: 1)
Author: "Jim N7US" <jim@n7us.net>
Date: Mon, 22 Sep 2014 12:14:11 -0500
See also http://www.arraysolutions.com/Products/bcb_filters_top.htm and http://arraysolutions.com/Products/bcb_filters_top1.htm . 73, Jim N7US --Original Message-- Ed, I have the same problem. A 25KW
/archives//html/Topband/2014-09/msg00125.html (9,627 bytes)

9. Re: Topband: BCB interference ? (score: 1)
Author: wb6rse1@mac.com
Date: Mon, 22 Sep 2014 10:35:04 -0700
I had a local BC station start to produce spurs that overloaded an external preamp for my full size RX flag. The Array Solutions W3NQN RX filter did the job. I tried an Array Solutions AS-402 BCB Hig
/archives//html/Topband/2014-09/msg00128.html (8,294 bytes)

10. Re: Topband: BCB interference ? (score: 1)
Author: "Richard (Rick) Karlquist" <richard@karlquist.com>
Date: Mon, 22 Sep 2014 11:09:25 -0700
Not if you put the filter in the RX loop. That feature is part of the KXV3 and KXV3A modules 73, Jim K9YC Does this allow me to listen on my transmit vertical through a low power high pass filter? AF
/archives//html/Topband/2014-09/msg00129.html (9,257 bytes)

11. Re: Topband: BCB interference ? (score: 1)
Author: Bill Wichers <billw@waveform.net>
Date: Mon, 22 Sep 2014 18:19:58 +0000
It operates like a send/return loop. You can toggle the signal routing from the front panel to either use the external device or not. I know for a fact it will work for the transmit antenna since tha
/archives//html/Topband/2014-09/msg00130.html (10,207 bytes)

12. Re: Topband: BCB interference ? (score: 1)
Author: Jim Brown <jim@audiosystemsgroup.com>
Date: Mon, 22 Sep 2014 11:21:29 -0700
The spec for this filter is ambiguous. Is the -40dB at all frequencies below 1.6 MHz, or at 1 MHz? BIG difference. OTOH, the Dunestar filters are decent for the price. I found I have a 25KW AM 1520 K
/archives//html/Topband/2014-09/msg00131.html (10,851 bytes)

13. Re: Topband: BCB interference ? (score: 1)
Author: Jim Brown <jim@audiosystemsgroup.com>
Date: Mon, 22 Sep 2014 11:35:49 -0700
On Mon,9/22/2014 11:09 AM, Richard (Rick) Karlquist wrote: On 9/22/2014 9:42 AM, Jim Brown wrote: On Mon,9/22/2014 7:07 AM, Hardy Landskov wrote: The catch is it has to be able to handle the transmit
/archives//html/Topband/2014-09/msg00132.html (10,934 bytes)

14. Re: Topband: BCB interference ? (score: 1)
Author: Chuck Hutton <charlesh3@msn.com>
Date: Mon, 22 Sep 2014 18:59:00 +0000
Jim: Digital sidebands for AM stations only extend +/- 15 kHz from the carrier. If noise is being heard 317 kHz above the carrier, it's not due to IBOC usage. Chuck _________________ Topband Reflect
/archives//html/Topband/2014-09/msg00134.html (9,301 bytes)

15. Re: Topband: BCB interference ? (score: 1)
Author: Chuck Hutton <charlesh3@msn.com>
Date: Mon, 22 Sep 2014 19:22:05 +0000
Their description (to me at least) indicates an elliptic filter with a stopband peak of -40 dB at 1 MHZ and ranging to infinity (in theory) elsewhere in the stopband. In other words, 40 dB is the max
/archives//html/Topband/2014-09/msg00136.html (9,766 bytes)

16. Re: Topband: BCB interference ? (score: 1)
Author: W9UCW--- via Topband <topband@contesting.com>
Date: Mon, 22 Sep 2014 15:29:00 -0400
I have a 50 KW station on 1530, eight miles north of me. They have a six element in-line array aimed south at Mexico... and me. They tore up every rig I've had in the shack until I went to a K3. We h
/archives//html/Topband/2014-09/msg00137.html (10,134 bytes)

17. Re: Topband: BCB interference ? (score: 1)
Author: "Charlie" <charlie-cunningham@nc.rr.com>
Date: Mon, 22 Sep 2014 15:47:59 -0400
Pardon me, but an elliptic filter does not tend toward infinite attenuation in the stopband! The tradeoff, with elliptical filter designs, in which we incorporate transmission zeroes to increase the
/archives//html/Topband/2014-09/msg00138.html (11,128 bytes)

18. Re: Topband: BCB interference ? (score: 1)
Author: <chris@g3svl.com>
Date: Tue, 23 Sep 2014 01:51:26 +0100
I have a three-frequency 2.7KW BC station that is 350 yards from the base of my 160m vertical. The NQN BCB filter knocks out all problems - well except for the 2nd harmonic of the 945KHz feed which s
/archives//html/Topband/2014-09/msg00139.html (8,806 bytes)

19. Re: Topband: BCB interference ? (score: 1)
Author: Jim Brown <jim@audiosystemsgroup.com>
Date: Mon, 22 Sep 2014 18:28:52 -0700
Their effectiveness will depend entirely on the frequencies within the BCB you are trying to suppress. 945 kHz is FAR easier than 1530 kHz, which is what these guys are dealing with. Yes, the ICE BCB
/archives//html/Topband/2014-09/msg00140.html (9,362 bytes)

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