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References: [ +from:Michael_Sapp_WA3TTS@compuserve.com: 22 ]

Total 22 documents matching your query.

1. Re: Topband: HF-2V Coil Dimensions K7XQ Jeff (score: 1)
Author: Michael Sapp <Michael_Sapp_WA3TTS@compuserve.com>
Date: Mon, 21 Feb 2005 16:04:17 -0500
Hello Jeff & Group: The HF-2V 160m coil kit is the TBR-160-S, an overview is available at www.bencher.com/pdfs/00237izv.pdf . This is a parallel LC trap that is self-resonant at about 2.2 MHz. Butter
/archives//html/Topband/2005-02/msg00210.html (8,173 bytes)

2. Topband: null steering by phasing WA4FKI (score: 1)
Author: Michael Sapp <Michael_Sapp_WA3TTS@compuserve.com>
Date: Sun, 27 Feb 2005 11:48:13 -0500
Hi Bill & Group: I have a pair of back-to-back EWEs positioned for NE-SW reception. I use a Timewave ANC-4 to link the rx antennas to the transceiver, as the unit has a separate rx input, gain contr
/archives//html/Topband/2005-02/msg00247.html (8,006 bytes)

3. Topband: EWE tweaking (score: 1)
Author: Michael Sapp <Michael_Sapp_WA3TTS@compuserve.com>
Date: Sun, 27 Feb 2005 12:07:13 -0500
Hello: I have a pair of back to back EWEs that share the same termination ground rod with separate 1K resistors. Also, the input side grounds are all tied together with the ternination ground. The tw
/archives//html/Topband/2005-02/msg00249.html (7,727 bytes)

4. Re: Topband: EWE Tweaking (score: 1)
Author: Michael Sapp <Michael_Sapp_WA3TTS@compuserve.com>
Date: Sun, 27 Feb 2005 19:00:54 -0500
Hi Chuck & Group: Yes, I have read up extensively on the subject and agree. A single variable termination would have made things easier to control for the two back-to-back EWEs, but it looks like in
/archives//html/Topband/2005-02/msg00253.html (8,061 bytes)

5. Re: Topband: Automatic Bandswitching 80/160m Vert (score: 1)
Author: Michael Sapp <Michael_Sapp_WA3TTS@compuserve.com>
Date: Wed, 2 Mar 2005 15:00:39 -0500
Hello Bob & Group: Take a look at March 1998 QST article "Building Efficient Short Vertical Antennas" (AC7A) There are some antenna efficency comparisons for wire capacity hats with 0 and -25 degree
/archives//html/Topband/2005-03/msg00014.html (7,812 bytes)

6. Re: Topband: elevated vs buried radials (score: 1)
Author: Michael Sapp <Michael_Sapp_WA3TTS@compuserve.com>
Date: Sat, 5 Mar 2005 16:12:09 -0500
Hello Bill (W4ZV) and Group: Bill wrote: > For some reason K3LC did not model the 2 elevated radial case but it would have been interesting to have seen that. That would be interesting for me as well
/archives//html/Topband/2005-03/msg00061.html (8,762 bytes)

7. Topband: 3-12-05 greyline opening (score: 1)
Author: Michael Sapp <Michael_Sapp_WA3TTS@compuserve.com>
Date: Sat, 12 Mar 2005 07:25:07 -0500
Hello: Many thanks to KL7J and JH5FXP for the QSOs this AM. Signals were very loud on my greyline with just a short vertical GP & KW out. Best DX Mike WA3TTS _________________________________________
/archives//html/Topband/2005-03/msg00132.html (6,599 bytes)

8. Topband: beverage termination (score: 1)
Author: Michael Sapp <Michael_Sapp_WA3TTS@compuserve.com>
Date: Thu, 15 Dec 2005 14:04:20 -0500
Anybody out there ever think of using spark plug wires as beverage termination resistors? I just measured one about 12 inches long and checked in at 590 ohms. Certainly more weather-worthy than a 2-W
/archives//html/Topband/2005-12/msg00203.html (6,980 bytes)

9. Re: Topband: ignition wire termination (WA3TTS) (score: 1)
Author: Michael Sapp <Michael_Sapp_WA3TTS@compuserve.com>
Date: Fri, 16 Dec 2005 15:02:24 -0500
Well, I swept the 12 inch 590 ohm ignition wire with a MFJ-259B and 9:1 matching transformer. It started to show some reactance around 7MHz. Tried some F-56 Crimp Rings and seems to make an OK connec
/archives//html/Topband/2005-12/msg00208.html (6,670 bytes)

10. Topband: Tree EWE, Jamie WW3S (score: 1)
Author: Michael Sapp <Michael_Sapp_WA3TTS@compuserve.com>
Date: Thu, 29 Dec 2005 16:45:35 -0500
Tree EWE I have a pair of back to back EWEs pointing NE and SW, all tree supported. The termination ends loop over an Apple tree branch and come down to ground a few feet away from the trunk. The fee
/archives//html/Topband/2005-12/msg00382.html (7,613 bytes)

11. Re: Topband: K5NA Ferrite beads for RG-6 (score: 1)
Author: Michael Sapp <Michael_Sapp_WA3TTS@compuserve.com>
Date: Wed, 18 Jan 2006 10:48:53 -0500
Hello Rich and Group: I use RG-6 quad shield for my RX antennas at home and the local radio club. Recently purchased 100 type 43 ferrite beads from Surplus Sales of Nebraska, size .4 ID, .75 OD, 1.12
/archives//html/Topband/2006-01/msg00271.html (8,012 bytes)

12. Topband: 160m test cq (score: 1)
Author: Michael Sapp <Michael_Sapp_WA3TTS@compuserve.com>
Date: Wed, 1 Feb 2006 11:08:51 -0500
Hi Folks: IMHO, two simple rule changes could make this contest more enjoyable. 1. CQ Policy 1a. NA stations CQ only above 1850 1b. EU and Africa CQ only 1825 to 1850 1c. Asia and Oceania CQ only 1.8
/archives//html/Topband/2006-02/msg00019.html (7,681 bytes)

13. Re: Topband: Beverage Pointing (score: 1)
Author: Michael Sapp <Michael_Sapp_WA3TTS@compuserve.com>
Date: Fri, 10 Feb 2006 16:01:22 -0500
To K5PC & Folks: Using the average of sunrise and sunset times is only as good as the source. Your local newspaper or weather station might not be all that dependable, as you don't know where there d
/archives//html/Topband/2006-02/msg00141.html (7,576 bytes)

14. Re: Topband: out of band ant test stations (score: 1)
Author: Michael Sapp <Michael_Sapp_WA3TTS@compuserve.com>
Date: Sun, 19 Mar 2006 15:04:48 -0500
Hi Topbanders: I have several highway information transmitters in the area that are reasonably low power but still heary 24/7 in the 1610-1650 range locally, they easily verify F/B on my EWEs. On 80m
/archives//html/Topband/2006-03/msg00136.html (6,992 bytes)

15. Topband: phone line (score: 1)
Author: Michael Sapp <Michael_Sapp_WA3TTS@compuserve.com>
Date: Tue, 27 Jun 2006 15:55:10 -0400
Hi Folks: I have a situation at my radio club where we have a +35 foot telephone pole that would be ideal for supporting a 50+ foot vertical as a ground plane for 80 and 160m, but it does support a p
/archives//html/Topband/2006-06/msg00061.html (7,675 bytes)

16. Topband: T400A-2 (score: 1)
Author: Michael Sapp <Michael_Sapp_WA3TTS@compuserve.com>
Date: Mon, 18 Dec 2006 21:02:56 -0500
Hi Topbanders: I was thinking of reconfiguring my base loading arrangement on a MFJ-1792 80/40M vertical GP for 160m after reading J. Sevik's article "Simple Broadband Matching Networks" (1978 Antenn
/archives//html/Topband/2006-12/msg00180.html (7,784 bytes)

17. Topband: INVERTED L NOISE (score: 1)
Author: Michael Sapp <Michael_Sapp_WA3TTS@compuserve.com>
Date: Fri, 22 Dec 2006 16:37:40 -0500
Try a RF choke to ground so the L has a DC ground path. That will at least drain off the atmospheric static and perhaps save a rx front end FET from failure. Keep the L for TX and run some separate R
/archives//html/Topband/2006-12/msg00228.html (7,049 bytes)

18. Topband: K9AY transformer diagram (score: 1)
Author: Michael Sapp <Michael_Sapp_WA3TTS@compuserve.com>
Date: Sun, 24 Dec 2006 12:26:59 -0500
Try this link: www.qsl.net/wa1ion/bev/bb_antenna_matching.pdf Includes diagrams and test data graphs for several variations of transformers and a good read on background info Mike WA3TTS (wa3tts@veri
/archives//html/Topband/2006-12/msg00273.html (6,491 bytes)

19. Topband: analyzer filters (score: 1)
Author: Michael Sapp <Michael_Sapp_WA3TTS@compuserve.com>
Date: Mon, 25 Dec 2006 00:06:17 -0500
OK all you MFJ-259/69, & similar analyzer owners. You have an instrument that accurately reads pf, uh, resonance, and return loss. You should have at least one ARRL handbook lying around the shack. B
/archives//html/Topband/2006-12/msg00283.html (7,007 bytes)

20. Topband: banpass filters & analyzer (score: 1)
Author: Michael Sapp <Michael_Sapp_WA3TTS@compuserve.com>
Date: Mon, 25 Dec 2006 18:53:18 -0500
I was thnking more along the lines of a simple quarter wave open coaxial stub as a filter or a simple three pole Butterworth used in the center of the passband, not at the edges. A few percent freq
/archives//html/Topband/2006-12/msg00290.html (7,636 bytes)

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