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Total 46 documents matching your query.

1. [TowerTalk] Requested additional info on 4 SQR from N0AH (score: 1)
Author: w8ik@ibm.net (Joe Subich, W8IK)
Date: Tue, 31 Aug 1999 17:01:32 -0400
What everyone who points to ON4UN's "single raised raidal" system seems to forget is that John's 80 Meter system is installed ABOVE HIS 160 METER GROUND SYSTEM ... that system is "approximately 250
/archives//html/Towertalk/1999-08/msg00567.html (8,512 bytes)

2. [TowerTalk] A Different Take On Guy Wires? (score: 1)
Author: W8IK@ibm.net (Joe Subich, W8IK/4)
Date: Sun, 2 May 1999 13:06:10 -0400
Most, if not all, of Florida is 100 MPH or 110 MPH territory. I would not consider leaving 20' of Rohn 45 above the guy point even with a small tribander (C-3, TH3, TA33, A3, etc.). Such an installa
/archives//html/Towertalk/1999-05/msg00026.html (9,461 bytes)

3. [TowerTalk] Perfect Field Day beam? (score: 1)
Author: W8IK@ibm.net (Joe Subich, W8IK/4)
Date: Tue, 4 May 1999 20:05:44 -0400
This is the very essence of beam formation and the mechanism responsible for antenna gain/pattern. If an antenna has a pattern, ie. it radiates other than equally in all directions, it has gain. Cer
/archives//html/Towertalk/1999-05/msg00100.html (10,216 bytes)

4. [TowerTalk] Elements out of Horizontal plane (score: 1)
Author: W8IK@ibm.net (Joe Subich, W8IK/4)
Date: Tue, 16 Mar 1999 15:01:34 -0500
Since none of the experts has responded, I ran a home made model of the Cushcraft XM402 through AO and rotated the reflector around the boom. The model was run in free space with no other antennas p
/archives//html/Towertalk/1999-03/msg00258.html (9,260 bytes)

5. [TowerTalk] Elements out of Horizontal plane (score: 1)
Author: W8IK@ibm.net (Joe Subich, W8IK/4)
Date: Tue, 16 Mar 1999 17:10:46 -0500
L.B.'s results indicate that my model is on the right track (the loading losses are about 1dB) so I decided to re-run the test over ground. I chose 75 feet again with no other antennas, guy wires or
/archives//html/Towertalk/1999-03/msg00264.html (9,004 bytes)

6. [TowerTalk] 40 and 15 beams on same mast? (score: 1)
Author: W8IK@ibm.net (Joe Subich, W8IK/4)
Date: Thu, 18 Mar 1999 19:52:00 -0500
One caveat ... I haven't modeled the Force-12 40 meter antennas (linear loading is a bit beyond me right now). However, to get a good feel for the nature of the 40/15 stack problem I build AO models
/archives//html/Towertalk/1999-03/msg00332.html (9,854 bytes)

7. [TowerTalk] Alabama tower accident-update (score: 1)
Author: W8IK@ibm.net (Joe Subich, W8IK/4)
Date: Thu, 11 Feb 1999 18:26:14 -0500
True. BTW, "riding the load" is verboten, too. Not that anyone pays attention to the prohibitions on riding either the ball or the load ... at least so that I've seen on broadcast sites. 73, ... Joe
/archives//html/Towertalk/1999-02/msg00240.html (7,857 bytes)

8. [TowerTalk] Looking for ... (score: 1)
Author: W8IK@ibm.net (Joe Subich, W8IK/4)
Date: Thu, 18 Feb 1999 16:14:36 -0500
Anyone out there have an old Cushcraft R7 that has seen better days setting in a garage or basement that they would be willing to let go for parts? I'm particularly looking for the 20/30 meter traps
/archives//html/Towertalk/1999-02/msg00411.html (7,082 bytes)

9. [TowerTalk] Info from Bencher regarding balun (score: 1)
Author: W8IK@ibm.net (Joe Subich, W8IK/4)
Date: Mon, 22 Feb 1999 21:00:10 -0500
Does anyone have a model for the Bencher Skyhawk? -- FAQ on WWW: http://www.contesting.com/towertalkfaq.html Submissions: towertalk@contesting.com Administrative requests: towertalk-REQUEST@contestin
/archives//html/Towertalk/1999-02/msg00450.html (6,937 bytes)

10. [TowerTalk] DC and UNUNs (score: 1)
Author: W8IK@ibm.net (Joe Subich, W8IK/4)
Date: Wed, 24 Feb 1999 08:59:17 -0500
In practice, a single capacitor placed in the "ground" lead of the un-un should be all that is necessary. The un-un will provide the dc path from input to output (the relay operating current is smal
/archives//html/Towertalk/1999-02/msg00496.html (8,416 bytes)

11. [TowerTalk] Antenna Masts, hydraulic, electric or air operated (score: 1)
Author: w8ik@ibm.net (Joe Subich)
Date: Mon, 11 Jan 1999 14:57:29 -0500
Probably the most common (at least I've had them on every truck I have used or built) mast on TV trucks is by Wil-Burt Manufacturing in Orrville, Ohio. At one time the "standard" was a either 48' or
/archives//html/Towertalk/1999-01/msg00184.html (8,862 bytes)

12. [TowerTalk] Antenna Masts, hydraulic, electric or air operated (score: 1)
Author: w8ik@ibm.net (Joe Subich)
Date: Mon, 11 Jan 1999 15:18:25 -0500
Correct ... I had to replace a 56' mast on a TV remote truck last summer and the mast alone (air system, etc. was already in place) ran very close to $10,000 (through our truck builder). I no longer
/archives//html/Towertalk/1999-01/msg00185.html (8,482 bytes)

13. [TowerTalk] PARASLEEVE ANTENNA ELEMENTS (score: 1)
Author: W8IK@ibm.net (Joe Subich, W8IK/4)
Date: Tue, 26 Jan 1999 09:14:50 -0500
Rather than fight with a five element sleeve driver, why not use a short boom log feed (as Cushcraft or Hy-Gain) with reflectors for 20/17/15 and a director for 10? 73, ... Joe Subich, W8IK/4 ex-AD8
/archives//html/Towertalk/1999-01/msg00470.html (8,332 bytes)

14. [TowerTalk] Antenna positioning in the wind (score: 1)
Author: w8ik@ibm.net (Joe Subich, W8IK)
Date: Mon, 7 Dec 1998 23:20:34 -0500
Based on information that Roger Cox of HyGain has previously posted to the Towertalk group, putting the boom broadside to the wind is best of HF antennas. I'll attach the information below ... but a
/archives//html/Towertalk/1998-12/msg00090.html (10,904 bytes)

15. [TowerTalk] Antenna positioning in the wind (score: 1)
Author: w8ik@ibm.net (Joe Subich, W8IK)
Date: Fri, 11 Dec 1998 22:58:33 -0500
Since you are quoting my post, don't leave out the important part. I posted Roger's listing of boom and element areas for a wide range of Hy-Gain antennas (from the smallest 3 element 10 meter monob
/archives//html/Towertalk/1998-12/msg00167.html (11,113 bytes)

16. [TowerTalk] FW: Help 80m 4 square (score: 1)
Author: w8ik@ibm.net (Joe Subich, W8IK)
Date: Fri, 25 Dec 1998 09:49:06 -0500
ON4UN uses a single elevated radial on 80 over his extensive non-resonant 160 meter radial system. Mose elevated radial systems seem to work better with a "choke 'balun'" to reduce ground currents o
/archives//html/Towertalk/1998-12/msg00394.html (7,869 bytes)

17. [TowerTalk] FW: Help - 80m 4 square (score: 1)
Author: w8ik@ibm.net (Joe Subich, W8IK)
Date: Fri, 25 Dec 1998 09:49:04 -0500
Most people fail to realize that ON4UN's single elevated radial per element 80 meter four square is placed above his 160 meter ground plane. On page 9-40 of "Antennas and Techniques for Low Band DX-
/archives//html/Towertalk/1998-12/msg00395.html (8,769 bytes)

18. [TowerTalk] Ch 39 TVI?? (score: 1)
Author: w8ik@ibm.net (Joe Subich, W8IK)
Date: Tue, 6 Oct 1998 21:31:32 -0400
will not look like hum bars. The DTV signal has a nearly flat "noise like" spectrum. Average DTV powers are substantially below the equivalent NTSC peak powers (at least 12 dB). Further, the separat
/archives//html/Towertalk/1998-10/msg00118.html (8,227 bytes)

19. [TowerTalk] Re: Channel 39 TVI (score: 1)
Author: w8ik@ibm.net (Joe Subich, W8IK)
Date: Tue, 6 Oct 1998 21:46:44 -0400
Broadcast/Cable channels 39 are different ... only channels 2-13 are the same. For Broadcast channels: F(l) = 470 + 6 * (14-N) For Cable channels: F(l) = 120 + 6 * (14-N) where 13 < N < 23 F(l) = 21
/archives//html/Towertalk/1998-10/msg00120.html (7,566 bytes)

20. [TowerTalk] Loose Rotator Bolts (score: 1)
Author: w8ik@ibm.net (Joe Subich, W8IK)
Date: Sun, 18 Oct 1998 16:30:30 -0400
Was fairly common for me to find lose base (mounting) bolts on my T2X rotors back in the Columbus, OH area. QTH was on a flat land with a 200' drop off from southeast through north into a river vall
/archives//html/Towertalk/1998-10/msg00593.html (8,204 bytes)


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