Author: Hans Hammarquist via TowerTalk <towertalk@contesting.com>
Date: Thu, 20 Nov 2014 17:34:03 -0500
I have a grounded, metal plate that carries all my bulkhead connectors from the outside to the inside. No big deal except: I have wrapped the outside of the connectors with water tight tape. Consider
Author: Hans Hammarquist via TowerTalk <towertalk@contesting.com>
Date: Thu, 20 Nov 2014 17:58:37 -0500
Well, mine isn't. :( Usually the bulkhead is on stand-offs so the plate is off the outside wall. Only coax goes thru the wall. There should be no vapor going thru the coax so no problem. Ron W8RJL Se
Author: Matt B via TowerTalk <towertalk@contesting.com>
Date: Thu, 20 Nov 2014 17:27:48 -0800
I have antennas from both Force 12 and JK antennas. Both work very well. Force 12 is pop rivet construction, the jk uses stainless nut/bolt arrangement. If you ever have to disassemble, the pop rivet
Author: Hans Hammarquist via TowerTalk <towertalk@contesting.com>
Date: Fri, 21 Nov 2014 10:40:06 -0500
No Ron, it's worse. I have a square opening in the wall of my shack that is covered with a metal plate. There are holes in the plate that hold the bulkhead feed-troughs. My idea was to have easy acce
Author: Matt Brosious via TowerTalk <towertalk@contesting.com>
Date: Fri, 21 Nov 2014 16:08:29 +0000 (UTC)
The Forec 12 antenna 5 band is the XR5 sells for $1,499 XR5-T: Compact 9 Element 20m/17m/15m/12m/10m Multi-Mono Yagi The JK Navassa sells for $1,185. http://www.jkantennas.com/jk-navassa-5.html T
Author: Bob via TowerTalk <towertalk@contesting.com>
Date: Fri, 21 Nov 2014 12:37:50 -0500
Tim... After being away from the hobby for way too long, I'm looking to get back in with a decent tribander ( Force 12 C-31/Optibeam, etc far too expensive ), but most of the things out there are eit
Author: Hans Hammarquist via TowerTalk <towertalk@contesting.com>
Date: Fri, 21 Nov 2014 19:41:17 -0500
Jim, you give me a simple role to follow:" Don't fix it until it's broken." I give it to next year to see if I get any problem. I will add insulation to the outside of the plate, Styrofoam with holes
Author: Hans Hammarquist via TowerTalk <towertalk@contesting.com>
Date: Sun, 23 Nov 2014 21:57:16 -0500
That was mean, Patrick, although not that far fetched. Hans - N2JFS -:- More specifically, let people free climb if it is their freely made choice and not an imposition of an employer. Let nature tak
Author: Hans Hammarquist via TowerTalk <towertalk@contesting.com>
Date: Mon, 24 Nov 2014 15:37:08 -0500
Isn't the key difference the F/B ratio? That way you can "null" or almost null out QRM/QRN to hear the selected station better. To me, I'm still very happy my LW, a 270' OCF dipole. Most of the time
Author: Bryan Swadener via TowerTalk <towertalk@contesting.com>
Date: Mon, 24 Nov 2014 21:36:15 +0000 (UTC)
There's more to it than forward gain for the signal you WANT to hear. F/B and F/S rejects signals you DON'T want to hear. Otherwise, everyone would just use omnidirectional antennas. I like that QRM
Author: Hans Hammarquist via TowerTalk <towertalk@contesting.com>
Date: Tue, 25 Nov 2014 09:00:11 -0500
Dan, Not that is should matter that much (as a few % extra losses doesn't really affect the S reading) but do you see and decay due to corrosion of the surface of the wires? I know that Al wires are
Author: Bryan Swadener via TowerTalk <towertalk@contesting.com>
Date: Wed, 26 Nov 2014 18:48:12 +0000 (UTC)
Hi Jim, It's been known to happen! Here in the 'upper-left corner' of the US, it's an even greater challenge than in the 'lower-left corner'. Last month's program at Western WA DX Club presented data
Author: Hans Hammarquist via TowerTalk <towertalk@contesting.com>
Date: Wed, 26 Nov 2014 19:05:18 -0500
With that length of RG-8 you can probably replace it with a dummy load. :) Hans - N2JFS <snip> Any length of Steve, Change that to any REASONABLE length, I'll agree, but what happens if the length is
Author: RLVZ--- via TowerTalk <towertalk@contesting.com>
Date: Wed, 26 Nov 2014 23:50:16 -0500
Correct me if I'm wrong, but the JK antennas don't have pre-aligned elements like the Force 12 and Skyhawk have. I for one hate running back and forth wasting time trying to align each element. 73, D
Author: RLVZ--- via TowerTalk <towertalk@contesting.com>
Date: Thu, 27 Nov 2014 12:07:13 -0500
Hi Gary, Happy Thanksgivng! I'm thankful we still have a few antenna manufacturers to choose from. I read the Force website the same as you- that the XR-5 has been replaced with the new XR5-T. What c
Author: Matt Brosious via TowerTalk <towertalk@contesting.com>
Date: Thu, 27 Nov 2014 17:35:01 +0000 (UTC)
Forwarding this message from Ken at JK Antennas"Dick, Not sure how you came up with such a weird idea, but here is the correct information-- The Navassa5 comes pre-drilled and pre-aligned with elemen
Author: RLVZ--- via TowerTalk <towertalk@contesting.com>
Date: Thu, 27 Nov 2014 16:05:03 -0500
Joe is correct, I am talking about the elements "horizontal" alignment on the Navassa 5. I believe the user must align all elements "horizontally" ourselves and I don't enjoy that procedure because m
Author: David Gallatin via TowerTalk <towertalk@contesting.com>
Date: Sat, 29 Nov 2014 01:45:58 +0000 (UTC)
Hello everyone,It is indeed a black friday. :) So...I'm at the beginning of fabricating 12 cables of various lengths for my new station tower. I'm using DXE 400 and amphenol PL-259 crimp connectors.
Author: Hans Hammarquist via TowerTalk <towertalk@contesting.com>
Date: Sat, 29 Nov 2014 11:14:13 -0500
Rick, I agree that this method guarantee no short in the coax but may introduce other problems later. I suspect that the individual wires in the shield will break off, one by one, over time, especial
Author: Mike Fahmie via TowerTalk <towertalk@contesting.com>
Date: Sun, 30 Nov 2014 01:07:51 +0000 (UTC)
How about maybe in a underground nuclear test bore hole, it would deliver the signal before the coax melted entirely (?).-Mike What would they use nichrome coax for? Some sort of test jig for heating