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References: [ 406 ]

Total 406 documents matching your query.

341. Re: Topband: alternative to vacuum variables (score: 1)
Author: "ZR" <>
Date: Sat, 26 Jan 2013 09:21:30 -0500
Yes, there is a great solution, I'm using it for almost 10 years. The issue with capacitors in 160m is the dielectric an most capacitors get hot and change the capacitance. I used 19 x 62 pFNPO 3KV c
/archives//html/Topband/2013-01/msg00208.html (11,742 bytes)

342. Re: Topband: Measured RG-6 Loss: Solid Copper vs. Copper Clad center conductor (score: 1)
Author: "ZR" <>
Date: Sat, 26 Jan 2013 09:21:56 -0500
Commscope, Times and what ever else quality distributors such as Tessco carry are what I suggest. Also see about buying from the local CATV installation contractors. Carl KM1H I have been watching th
/archives//html/Topband/2013-01/msg00209.html (13,252 bytes)

343. Re: Topband: Fifty low power sealed SPDT RF relays for five bucks! (score: 1)
Author: "ZR" <>
Date: Tue, 12 Feb 2013 11:31:59 -0500
I bought a similar deal from them about 3 years ago, great for Beverage and other switching and no failures or intermittents yet. Carl KM1H The web site is a little confusing about the quantity, but
/archives//html/Topband/2013-02/msg00097.html (8,386 bytes)

344. Re: Topband: W3NQN BCB Filter (score: 1)
Author: "ZR" <>
Date: Tue, 12 Feb 2013 12:34:48 -0500
A tuneable preselector such as an Ameco or Palomar may provide the needed front end selectivity. I used a Palomar I added a RF gain control to on the TS-940 before modifying the front end in the late
/archives//html/Topband/2013-02/msg00099.html (11,731 bytes)

345. Re: Topband: 160 Stub (score: 1)
Author: "ZR" <>
Date: Tue, 12 Feb 2013 12:34:52 -0500
You can use any coax you want but the lower the loss and C per foot the deeper and sharper the null. I use CATV type RG-11 foam on HF which worked fine for 2 op contesting, and 7/8" Andrew hardline o
/archives//html/Topband/2013-02/msg00100.html (7,477 bytes)

346. Re: Topband: Broadband dipoles (score: 1)
Author: "ZR" <>
Date: Tue, 26 Feb 2013 13:50:00 -0500
The March QST has a broadband dipole feature article. Carl KM1H It's the reference to termination resistors in the SPX data sheet that bothers me. Tom G3OLB K1FZ wrote: <The antenna in a simpler sing
/archives//html/Topband/2013-02/msg00181.html (8,280 bytes)

347. Re: Topband: Elevated Radials (score: 1)
Author: "ZR" <>
Date: Fri, 1 Mar 2013 18:25:16 -0500
Hi Guys, Forgive me, please, if I'm re-hashing a bit of the "...same-old, same-old" here, but I am really curious as to any "real world" experiences that might be out there in the matter of elevated
/archives//html/Topband/2013-03/msg00005.html (13,234 bytes)

348. Re: Topband: Elevated Radials (score: 1)
Author: "ZR" <>
Date: Fri, 1 Mar 2013 21:53:48 -0500
Elevated radials avoid a collection of lossy mistakes that one finds in less than optimal buried/on ground radials. If a full size radial system is done properly, dense, uniform all around, you will
/archives//html/Topband/2013-03/msg00006.html (8,293 bytes)

349. Re: Topband: Elevated Radials (score: 1)
Author: "ZR" <>
Date: Wed, 6 Mar 2013 11:54:57 -0500
Since the radial field for any height vertical has equal importance the only way to get 1/4 wave efficiency is to have zero RF loss in the loading coil and matching network. Cryogenics anyone? There
/archives//html/Topband/2013-03/msg00045.html (10,981 bytes)

350. Re: Topband: Elevated Radials EPILOGUE (score: 1)
Author: "ZR" <>
Date: Thu, 7 Mar 2013 12:09:16 -0500
ON4UN's series of books have always had way too many individual assumptions and we all know what happens then. Those books offer a place to start and then apply your own unique soil and local conditi
/archives//html/Topband/2013-03/msg00059.html (12,424 bytes)

351. Re: Topband: ALUMINUM (score: 1)
Author: "ZR" <>
Date: Sat, 9 Mar 2013 09:44:03 -0500
I use CATV hardline everywhere here and have had some left over bare coils on the ground for the 24 years Ive been here. Except for staining from leaves, etc it is still fine appearing. The ground is
/archives//html/Topband/2013-03/msg00075.html (9,674 bytes)

352. Re: Topband: CABLE TV HARDLINE (score: 1)
Author: "ZR" <>
Date: Fri, 5 Apr 2013 13:03:25 -0400
Gilbert makes ends for UHF and N in male and female. LRC is another.
/archives//html/Topband/2013-04/msg00010.html (10,964 bytes)

353. Re: Topband: RG-6 coax (score: 1)
Author: "ZR" <>
Date: Thu, 11 Apr 2013 11:46:34 -0400
If you can find a proper (that is, complete) technical data sheet for whatever coax you are considering, it will include values for the DC resistance of the center conductor and the shield. Likewise,
/archives//html/Topband/2013-04/msg00016.html (9,450 bytes)

354. Re: Topband: Problem with compression F connectors on Quad RG-6 (score: 1)
Author: "ZR" <>
Date: Mon, 6 May 2013 11:22:44 -0400
How about folding the shields back a little? I think that's a superior way of doing it as opposed to cutting them all flush with the jacket. Be careful doing that or using any non-approved assembly m
/archives//html/Topband/2013-05/msg00019.html (14,715 bytes)

355. Re: Topband: fine whiskey is a daylight beverage (score: 1)
Author: "ZR" <>
Date: Tue, 7 May 2013 12:24:29 -0400
How about replacing it with nothing! I find the current one offensive and dont think any forced signature is warranted. Carl KM1H "fine whiskey is a daylight beverage" is appended to the end of each
/archives//html/Topband/2013-05/msg00029.html (8,109 bytes)

356. Re: Topband: Wall warts (score: 1)
Author: "ZR" <>
Date: Tue, 7 May 2013 19:10:21 -0400
-- Original Message -- I dont care for forced signatures...period. Just more useless bandwidth to be erased when replying so as to not aggravate you with untrimmed messages. Carl The "fine whiskey" s
/archives//html/Topband/2013-05/msg00046.html (8,924 bytes)

357. Re: Topband: Wall warts (score: 1)
Author: "ZR" <>
Date: Wed, 8 May 2013 13:01:37 -0400
I am not offended at all relative to the "fine whiskey" deal. To begin with I'm too busy to worry about trivia such as that. I agree, John--there's nothing at all wrong with a fine whiskey, anyway...
/archives//html/Topband/2013-05/msg00061.html (9,064 bytes)

358. Re: Topband: Problem with compression F connectors on Quad RG-6 (score: 1)
Author: "ZR" <>
Date: Thu, 9 May 2013 09:54:51 -0400
Im another who has been using the RF Industries tool for well over 20 years for both 50 Ohm and mostly CATV or Belden RG-11 foam. No failures or funny things happening. Carl KM1H Mike, Here's a link
/archives//html/Topband/2013-05/msg00067.html (15,792 bytes)

359. Re: Topband: 160 and 80 meter QRN prediction (score: 1)
Author: "ZR" <>
Date: Mon, 13 May 2013 13:51:30 -0400
Now you have to use it up the band on AM where there are still plenty of 833's in use. Carl KM1H Well, mine's not much to look at. I sort of designed it as I was building it, using junk parts that I
/archives//html/Topband/2013-05/msg00085.html (9,941 bytes)

360. Re: Topband: Thanks! (score: 1)
Author: "ZR" <>
Date: Tue, 21 May 2013 16:18:36 -0400
Are you now claiming that the thousands of bead choke baluns in use for decades at HF and 6M dont work? I suspect that those who have been happy with the results in mimizing feedline radiation would
/archives//html/Topband/2013-05/msg00152.html (10,406 bytes)

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