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References: [ +from:Palomar@compuserve.com: 48 ]

Total 48 documents matching your query.

41. [RFI] KD6ZZ repeater problem (score: 1)
Author: Jack Althouse <Palomar@compuserve.com> (Jack Althouse)
Date: Tue, 7 Jul 1998 23:50:36 -0400
If the coax shield is acting like an AM receive antenna then ferrites over the coax should stop the signal from getting to the receiver. If this doesn't help try a 1600 KHz trap (series tuned circuit
/archives//html/RFI/1998-07/msg00002.html (6,607 bytes)

42. [RFI] Marty Tippin CATV problem (score: 1)
Author: Jack Althouse <Palomar@compuserve.com> (Jack Althouse)
Date: Wed, 8 Jul 1998 12:02:27 -0400
The high-pass filter not helping indicates that overload is not the problem although it would be advisable to try ferrites on the cable to make sure its not coming in by common mode. Signal entry via
/archives//html/RFI/1998-07/msg00006.html (6,841 bytes)

43. [RFI] Ground rod placement (score: 1)
Author: JACK ALTHOUSE <Palomar@compuserve.com> (JACK ALTHOUSE)
Date: Wed, 13 May 1998 00:46:14 -0400
<With a field strength meter I determined the ground strap and rod were both radiating RF - w4des> The problem of RF current in the ground strap is not the fault of the grounding. As WA9ENA pointed o
/archives//html/RFI/1998-05/msg00020.html (7,918 bytes)

44. [RFI]Yaesu G-1000SDX rotator (score: 1)
Author: JACK ALTHOUSE <Palomar@compuserve.com> (JACK ALTHOUSE)
Date: Fri, 10 Apr 1998 01:21:13 -0400
Kelly Boswell KA5MGL reports 43 beads give minimal improvement. -- 43 Mixture is the best for both 2 and 10 meter RFI. If by "minimal effect" you mean a small improvement then more beads or several t
/archives//html/RFI/1998-04/msg00015.html (6,917 bytes)

45. [RFI] Weather Station (score: 1)
Author: JACK ALTHOUSE <Palomar@compuserve.com> (JACK ALTHOUSE)
Date: Mon, 2 Mar 1998 01:12:32 -0500
"Some improvement" with ferrites indicates that more ferrites added may cure the problem. Radio Shack "Clamp-On Chokes" must have 5 turns or more to be effective on 80 meters. Split beads are about 1
/archives//html/RFI/1998-03/msg00002.html (7,147 bytes)

46. [RFI] Television RFI (score: 1)
Author: JACK ALTHOUSE <Palomar@compuserve.com> (JACK ALTHOUSE)
Date: Mon, 23 Mar 1998 18:32:44 -0500
apart (switching power supply?). They are typically about S9. around S4 to S5. First find the exact path the RFI is taking. To check the TV power cable with Radio Shack "clamp-on" core you must make
/archives//html/RFI/1998-03/msg00034.html (7,536 bytes)

47. [RFI] Accessory port RFI (score: 1)
Author: JACK ALTHOUSE <Palomar@compuserve.com> (JACK ALTHOUSE)
Date: Fri, 27 Mar 1998 00:43:30 -0500
Try ferrite on both the 737 Accessory port and the microphone cable. The Radio Shack chokes require 5 turns or so to be very effective. Split beads work better. You may need more than one either type
/archives//html/RFI/1998-03/msg00044.html (7,011 bytes)

48. [RFI] Help with broadcast (score: 1)
Author: Palomar Engineers <Palomar@compuserve.com>
Date: Thu, 12 Feb 2004 22:39:35 -0500
First I'd put a choke (such as two Palomar balun kits) on the coax as it enters the rig. This will reduce anything picked up on the outside of the coax. Next add a tuner in line. Even though your ant
/archives//html/RFI/2004-02/msg00069.html (6,652 bytes)


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