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Total 84 documents matching your query.

1. Re: [TowerTalk] LOOKING FOR A USED CRANK UP SELF SUPPORTINGTUBULARTOWER (score: 1)
Author: "Jim McDonald" <jim@n7us.net>
Date: Wed, 1 Feb 2006 10:31:39 -0600
Doesn't US Tower require J-bolts, rather than straight bolts? Jim N7US location in Nevada for contesting. I already have in place 10 cubic yards of steel reinforced concrete with 1 inch diameter by 3
/archives//html/Towertalk/2006-02/msg00005.html (8,726 bytes)

2. [TowerTalk] Structural engineer in IL? (score: 1)
Author: "Jim McDonald" <jim@n7us.net>
Date: Sun, 23 Jul 2006 07:58:56 -0500
I'm looking for an IL structural PE to review the calcs for a ham tower permit application. I have all the calcs and previous permits I've gotten in AZ and NM for my US Tower HDX-589 motorized crank-
/archives//html/Towertalk/2006-07/msg00684.html (7,443 bytes)

3. [TowerTalk] Testing ICE arrestors (score: 1)
Author: "Jim McDonald" <jim@n7us.net>
Date: Tue, 8 Aug 2006 20:36:27 -0500
How can one tell if used ICE coax arrestors or 8-conductor control cable arrestors are still good? DC continuity on the center conductor of the coax arrestors? DC continuity of the control cable arre
/archives//html/Towertalk/2006-08/msg00218.html (6,779 bytes)

4. Re: [TowerTalk] Testing ICE arrestors (score: 1)
Author: Jim McDonald <jim@n7us.net>
Date: Wed, 09 Aug 2006 08:05:02 -0700
I received a nice answer from Jay, WX0B, who distributes ICE products. He attached a schematic, so I'll forward his reply to anyone else wanting to know the answer. Jim N7US _________________________
/archives//html/Towertalk/2006-08/msg00245.html (8,113 bytes)

5. Re: [TowerTalk] Testing ICE arrestors (score: 1)
Author: "Jim McDonald" <jim@n7us.net>
Date: Wed, 9 Aug 2006 20:58:49 -0500
Sorry for the clutter, but I know I made a mistake on copying the email address of one who wanted the info from WX0B. Let me know if you wanted a copy and didn't get it. Jim N7US I received a nice an
/archives//html/Towertalk/2006-08/msg00263.html (8,702 bytes)

6. Re: [TowerTalk] C31 - 1 feed line or 3 (score: 1)
Author: "Jim McDonald" <jim@n7us.net>
Date: Fri, 1 Sep 2006 13:48:39 -0500
Using a single feed, my C-31XR resonated (measured in the shack, where my transmitter is) well below 21.0 MHz (209??). N6BT suggested cutting an inch, I think he said, off the end of each side of the
/archives//html/Towertalk/2006-09/msg00015.html (8,754 bytes)

7. Re: [TowerTalk] Attn all comcast subscribers (score: 1)
Author: "Jim McDonald" <jim@n7us.net>
Date: Sun, 3 Sep 2006 22:17:52 -0500
I get my domain name and email from Go Daddy (godaddy.com), and it's about $10-20/year. Their spam filter is adjustable by the user. (And they have memorable Super Bowl ads!) Jim N7US --Original Mess
/archives//html/Towertalk/2006-09/msg00115.html (9,079 bytes)

8. Re: [TowerTalk] PE Stamp (score: 1)
Author: Jim McDonald <jim@n7us.net>
Date: Wed, 13 Sep 2006 09:31:37 -0700
I believe that US Tower can furnish wet stamps for all states, but I don't see it on their web site. You may also find an engineer through ARRL's Volunteer Consulting Engineer Program, http://www.arr
/archives//html/Towertalk/2006-09/msg00468.html (7,872 bytes)

9. Re: [TowerTalk] Hy-Gain HG-70HD Crankup Tower (score: 1)
Author: "Jim McDonald" <jim@n7us.net>
Date: Thu, 28 Sep 2006 23:06:04 -0500
Don, I used to have one when I lived in AZ. Sold it to W7IUV who has it now in WA. I think Hy-Gain built them in Lincoln, NE. Hy-Gain made a raising fixture that I had. It was guyed back to one screw
/archives//html/Towertalk/2006-09/msg00954.html (8,939 bytes)

10. [TowerTalk] Cadwelds (score: 1)
Author: "Jim McDonald" <jim@n7us.net>
Date: Sat, 28 Oct 2006 15:59:54 -0500
I have a couple of Cadweld One-Shots left from my last installation and just ordered some additional ones. I'm wondering if the new ones I ordered, which are called Cadweld Plus One Shot, will work w
/archives//html/Towertalk/2006-10/msg00743.html (6,988 bytes)

11. [TowerTalk] Source of 6/8 pin connectors? (score: 1)
Author: "Jim McDonald" <jim@n7us.net>
Date: Tue, 21 Nov 2006 14:13:42 -0600
Does anyone have any suggested sources for Cinch-Jones (or whatever) plug and socket sets for rotor control or whatever? I'm thinking 6 or 8 pins. Part numbers would be helpful. I looked at Mouser bu
/archives//html/Towertalk/2006-11/msg00488.html (7,192 bytes)

12. [TowerTalk] Ground - at base of tower or entrance to house? (score: 1)
Author: "Jim McDonald" <jim@n7us.net>
Date: Wed, 22 Nov 2006 18:14:46 -0600
I got such good answers on my question about plugs/sockets for control lines, I'll press my luck and try one more question. I'm reinstalling my US Tower HDX-589 near Chicago. The tower is 48' from th
/archives//html/Towertalk/2006-11/msg00570.html (7,959 bytes)

13. [TowerTalk] LMR600 (score: 1)
Author: "Jim McDonald" <jim@n7us.net>
Date: Sun, 26 Nov 2006 20:02:15 -0600
Is LMR600 or the equivalent too stiff to pass through three 45-degree sweeps in a 4" PVC? How about with an 89' crank-up tower? I am trying to decide whether to reuse my Davis RF Bury-Flex or replace
/archives//html/Towertalk/2006-11/msg00721.html (7,024 bytes)

14. Re: [TowerTalk] Antenna/Tower Grounding (Lightning Protection) (score: 1)
Author: "Jim McDonald" <jim@n7us.net>
Date: Fri, 5 Jan 2007 16:06:58 -0600
--Original Message-- Is there any way to tell when the ICE or Polyphaser arrestors need to be replaced due to taking too many lightning hits? Any way to tell if/when your tower has taken a hit? -- Th
/archives//html/Towertalk/2007-01/msg00194.html (10,168 bytes)

15. Re: [TowerTalk] Inspect Your Boom to Mast Plates! (score: 1)
Author: "Jim McDonald" <jim@n7us.net>
Date: Mon, 8 Jan 2007 22:33:39 -0600
I agree with Bob's advice. Several years ago, I looked up at my 3L Force-12 EF-340 40M yagi to see the ends of the boom, where the boom guys were fastened, higher than the center of the boom at the m
/archives//html/Towertalk/2007-01/msg00318.html (8,381 bytes)

16. Re: [TowerTalk] Tower Coax Support Sleeve (score: 1)
Author: Jim McDonald <jim@n7us.net>
Date: Tue, 20 Mar 2007 10:29:25 -0700
I wasn't aware of Kellems, but I'd have used them if I had known of them. I see that you have to run the cables through them before connectors are installed. I used a gray (2"?) PVC 90-degree sweep t
/archives//html/Towertalk/2007-03/msg00388.html (11,467 bytes)

17. Re: [TowerTalk] Tower Coax Support Sleeve (score: 1)
Author: Jim McDonald <jim@n7us.net>
Date: Tue, 20 Mar 2007 10:29:43 -0700
I wasn't aware of Kellems, but I'd have used them if I had known of them. I see that you have to run the cables through them before connectors are installed. I used a gray (2"?) PVC 90-degree sweep t
/archives//html/Towertalk/2007-03/msg00389.html (11,381 bytes)

18. Re: [TowerTalk] Yaesu G2800 Rotor Calibration Question and Complaint (score: 1)
Author: Jim McDonald <jim@n7us.net>
Date: Mon, 26 Mar 2007 14:56:28 -0700
My recollection is that Kenwood outsourced their repair parts business quite a while ago, though I don't know to whom. I don't know how successful that's been, though it would be interesting to hear
/archives//html/Towertalk/2007-03/msg00551.html (10,222 bytes)

19. [TowerTalk] Window ladder line & crank-up tower (score: 1)
Author: "Jim McDonald" <jim@n7us.net>
Date: Sun, 1 Apr 2007 10:41:00 -0500
I hung an 80M inverted vee fed with window-line balanced feeders hung off a cross-arm at the top of my 89' crank-up tower. I don't have the feedline attached to the top of any sections (yet?) and hav
/archives//html/Towertalk/2007-04/msg00001.html (7,461 bytes)

20. Re: [TowerTalk] Whole House Surge Protectors (score: 1)
Author: "Jim McDonald" <jim@n7us.net>
Date: Wed, 11 Apr 2007 20:23:29 -0500
I have an APC Smart-UPS 700 that I bought from RefurbUPS.com. I can't tell in the information I have which type of UPS it is. Does anyone know? Thanks. Jim N7US --Original Message-- For my really exp
/archives//html/Towertalk/2007-04/msg00223.html (8,033 bytes)


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