Search String: Display: Description: Sort:

Results:

References: [ +from:richard@karlquist.com: 753 ]

Total 753 documents matching your query.

1. RE: Topband: 160m inverted vee (score: 1)
Author: "Richard Karlquist" <richard@karlquist.com>
Date: Wed, 20 Aug 2003 22:09:21 -0700
I put up a 160 meter inverted vee with the apex at 60 feet and the legs pulled out in a straight line far enough to get the ends up 15 or 20 feet. It was several S-units below my 90 foot vertical, e
/archives//html/Topband/2003-08/msg00106.html (7,663 bytes)

2. Topband: vert & beverages (score: 1)
Author: richard@karlquist.com (Richard Karlquist)
Date: Tue, 03 Dec 2002 06:09:48 -0500
What is the advantage of using a beverage made of coax versus laying the coax on the ground to feed the far end and making the beverage out of wire? It seems to me it is a nuisance to string heavy co
/archives//html/Topband/2002-12/msg00033.html (7,177 bytes)

3. Topband: Future Antenna installation. (score: 1)
Author: richard@karlquist.com (Richard Karlquist)
Date: Tue, 03 Dec 2002 06:09:49 -0500
A 160 meter vertical, whether full size or top loaded, can be used as a voltage fed half wave vertical on 80 meters. This is easy to do if the vertical is insulated from ground (you didn't say whethe
/archives//html/Topband/2002-12/msg00034.html (7,525 bytes)

4. Topband: Switching system. (score: 1)
Author: richard@karlquist.com (Richard Karlquist)
Date: Tue, 10 Dec 2002 06:27:17 -0500
I have a 27m (90 ft) top loaded vertical on 160 that is also resonant as a voltage fed antenna at 3650. I match it on 80 with a 10 uH series inductor and 120 pF shunt capacitor. Note that the base is
/archives//html/Topband/2002-12/msg00145.html (6,574 bytes)

5. DXRE: Topband: ARRL 160 contest (score: 1)
Author: richard@karlquist.com (Richard Karlquist)
Date: Thu, 12 Dec 2002 09:34:22 -0800
Rick Karlquist N6RK richard@karlquist.com www.n6rk.com www.karlquist.com I think part of the problem is interpreting the rule correctly. First of all, the often used words "DX window" do not appear i
/archives//html/Topband/2002-12/msg00189.html (9,244 bytes)

6. Topband: propagation during the Stew Perry test (score: 1)
Author: richard@karlquist.com (Richard Karlquist)
Date: Mon, 30 Dec 2002 11:13:49 -0800
there was just a dearth of activity. The noise level was very low, and I had no trouble hearing KH6AT when he came back to my CQ, even though I was listening on the East beverage. All the KH6's were
/archives//html/Topband/2002-12/msg00310.html (8,984 bytes)

7. Topband: Re: Topband digest, Vol 1 #497 - 16 msgs (score: 1)
Author: richard@karlquist.com (Richard Karlquist)
Date: Tue, 31 Dec 2002 22:00:54 -0500
I have found my 60 foot high 160 meter inverted vee a pretty good receive antenna; it always is better than the vertical and often is competitive with the beverages. I like to run dual receive on the
/archives//html/Topband/2002-12/msg00320.html (7,301 bytes)

8. Topband: 160m Four Square Array; FT-1000D Keyclick mod (score: 1)
Author: richard@karlquist.com (Richard Karlquist)
Date: Fri, 1 Nov 2002 07:48:35 -0800
I recently did a whole bunch of mods to my FT-1000D, as documented on K3KY's web site. In fact, I invented a new mod of my own which I am going to submit to K3KY. The W8JI key click mod was one of th
/archives//html/Topband/2002-11/msg00008.html (8,831 bytes)

9. Topband: Propagation tests (score: 1)
Author: richard@karlquist.com (Richard Karlquist)
Date: Tue, 12 Nov 2002 06:57:35 -0500
I have been wondering why there hasn't been use of QRSS on 160. Is anyone on the reflector using it, and can clue us in? It seems like it would be an ideal way to let the antenna limited stations wor
/archives//html/Topband/2002-11/msg00056.html (6,640 bytes)

10. Topband: beverage support spacing (score: 1)
Author: richard@karlquist.com (Richard Karlquist)
Date: Fri, 22 Nov 2002 06:51:50 -0500
Everything you need is at the Home Depot (they oughta call it the Ham Depot:-) Go to the electric fence department and get insulators that snap onto T-posts. Also get tensioning springs and plastic i
/archives//html/Topband/2002-11/msg00132.html (8,276 bytes)

11. Topband: Feeding multiple beverages (score: 1)
Author: richard@karlquist.com (Richard Karlquist)
Date: Wed, 27 Nov 2002 20:31:04 -0800
I have been able to get away with using a common ground system and match transformers for multiple beverages emanating from one point. (I switch on the high-Z side). Also, it seems to be OK to have a
/archives//html/Topband/2002-11/msg00170.html (10,397 bytes)

12. Topband: linear loaded vertical (score: 1)
Author: richard@karlquist.com (Richard Karlquist)
Date: Mon, 21 Oct 2002 06:13:23 -0400
You can top load it for 160 meters with a couple of wires about 50 meters long. If it is series resonant on 160, it will be parallel resonant on 80. You can feed it as a voltage fed antenna on 80 wit
/archives//html/Topband/2002-10/msg00098.html (7,280 bytes)

13. Topband: Hay Bale Twine as guy wire (score: 1)
Author: richard@karlquist.com (Richard Karlquist)
Date: Tue, 03 Sep 2002 06:09:12 -0400
After reading this posting, I went to my local farm store in Linden, CA and bought some polypropylene baler twine marked "UV stabilized. This product specifically developed for intense high ultra vio
/archives//html/Topband/2002-09/msg00021.html (7,222 bytes)

14. Topband: Switching in Extra Antenna Length (score: 1)
Author: richard@karlquist.com (Richard Karlquist)
Date: Wed, 03 Jul 2002 10:20:45 +0100
I have been experimenting with a similar system for several years. I have a 90 foot aluminum tubing vertical with PVC insulators at 30 and 60 feet. Thus it is broken up into three 30 foot sections th
/archives//html/Topband/2002-07/msg00022.html (10,877 bytes)

15. Topband: Manually Switching in Extra Antenna Length (score: 1)
Author: richard@karlquist.com (Richard Karlquist)
Date: Wed, 03 Jul 2002 17:41:09 +0100
If you want to build such a switch, a good actuator is a power door lock motor. About $5 at All Electronics. Rick Karlquist N6RK richard@karlquist.com www.n6rk.com www.karlquist.com
/archives//html/Topband/2002-07/msg00023.html (6,703 bytes)

16. Topband: Switching in Extra Antenna Length (score: 1)
Author: richard@karlquist.com (Richard Karlquist)
Date: Fri, 05 Jul 2002 02:16:05 +0100
If you insist on using a trap at the top, I think the best way to make a trap (if the vertical is made of tubing) is to run a wire down the inside of the tubing to make a 1/4 wavelength section of ai
/archives//html/Topband/2002-07/msg00036.html (9,559 bytes)

17. Topband: Extending the Beverage (score: 1)
Author: richard@karlquist.com (Richard Karlquist)
Date: Thu, 11 Jul 2002 14:15:42 -0400
Very interesting! I have a set of 530 ft beverages about 2 feet high. Last summer, I inserted a relay at the 400 ft point of one of them, and A/B'ed 400 ft vs 530 ft. I tested on broadcast band, 160
/archives//html/Topband/2002-07/msg00062.html (7,403 bytes)

18. Topband: salt the ground? (score: 1)
Author: richard@karlquist.com (Richard Karlquist)
Date: Mon, 15 Jul 2002 23:09:19 -0700
Coincidentally, I was searching on this topic today, except I was interested in using salt to prevent weeds from growing around my verticals. I found a fairly long discussion on garden web: http://fo
/archives//html/Topband/2002-07/msg00100.html (9,911 bytes)

19. Topband: salt the ground? (score: 1)
Author: richard@karlquist.com (Richard Karlquist)
Date: Tue, 16 Jul 2002 11:23:56 +0100
Coincidentally, I was searching on this topic today, except I was interested in using salt to prevent weeds from growing around my verticals. I found a fairly long discussion on garden web: http://fo
/archives//html/Topband/2002-07/msg00102.html (8,773 bytes)

20. Topband: Power line noise on 160 (score: 1)
Author: richard@karlquist.com (Richard Karlquist)
Date: Sat, 18 May 2002 14:20:37 +0100
The beads will saturate at an amp or so of current without an air gap. You could try putting tape over the mating surfaces to create an air gap. Another issue is that the impedance of a 1 turn induct
/archives//html/Topband/2002-05/msg00132.html (6,850 bytes)


This search system is powered by Namazu