Mail Archive Search: <bazooka>

Results:

References: [ bazooka: 195 ]

Total 195 documents matching your query.

61. Re: [TowerTalk] Bazooka antenna (score: 33): Author: Jim Brown <jim@audiosystemsgroup.com>; Date: Wed, 09 Nov 2011 22:47:17 -0800; I've done that -- in fact, I do it pretty often when i run SO2R, as I did both of the last two weekends. I've been doing that for at least 40 years, usually with the guy on the other end being a damn; /archives//html/Towertalk/2011-11/msg00167.html (10,228 bytes)
62. Re: [TowerTalk] Bazooka antenna (score: 33): Author: Rob Atkinson <ranchorobbo@gmail.com>; Date: Wed, 9 Nov 2011 21:31:59 -0600; Put your GOOD rig and amp on 3595 and put 1500 w. CW into your coax to your fan dipole and have a listen to what comes out on 7190. Have a ham listen a couple miles away. Who told you it was a good; /archives//html/Towertalk/2011-11/msg00166.html (8,663 bytes)
63. Re: [TowerTalk] Bazooka antenna (score: 33): Author: K8RI <K8RI-on-TowerTalk@tm.net>; Date: Wed, 09 Nov 2011 16:32:02 -0500; No different than using trap verticals...or trap antennas in general. Perhaps I should say, multi-band antennas in general. Yes, you do need to be aware of harmonics on any multi-band antenna such as; /archives//html/Towertalk/2011-11/msg00163.html (9,002 bytes)
64. Re: [TowerTalk] Bazooka antenna (score: 33): Author: Jim Brown <jim@audiosystemsgroup.com>; Date: Wed, 09 Nov 2011 12:41:40 -0800; That could certainly be a problem with lousy rigs, but not with GOOD rigs and power amps that have decent harmonic filtering built into their output stages. Think about it -- there are thousands of t; /archives//html/Towertalk/2011-11/msg00161.html (8,612 bytes)
65. Re: [TowerTalk] Bazooka antenna (score: 33): Author: Rob Atkinson <ranchorobbo@gmail.com>; Date: Wed, 9 Nov 2011 11:53:35 -0600; If you love 2nd harmonics be sure to feed them with coax and run your rig right into the feedline. 73 Rob K5UJ _______________________________________________ _______________________________________; /archives//html/Towertalk/2011-11/msg00154.html (7,904 bytes)
66. Re: [TowerTalk] Bazooka antenna (score: 33): Author: Jim Brown <jim@audiosystemsgroup.com>; Date: Tue, 08 Nov 2011 11:16:41 -0800; YES! I LOVE fan dipoles. A HIGH 80/40 fan (higher than 50 ft) is likely to be a good match to 75 ohm coax. Mine are at 110 ft, and I feed them with Belden 8213 (very low loss foam RG11). They also wo; /archives//html/Towertalk/2011-11/msg00145.html (8,435 bytes)
67. Re: [TowerTalk] Bazooka for Top Band (score: 33): Author: "crawfish" <crawfish@surfmore.net>; Date: Sun, 17 Sep 2006 21:02:41 -0500; Chet, Bob has a legitimate post. Towers have to have antennas on them. In recent days, there have been discussions about Cushcraft and other brands of antennas. Bob, I would put up a full-size(270 fo; /archives//html/Towertalk/2006-09/msg00615.html (7,167 bytes)
68. Re: [TowerTalk] Bazooka 1/4 wave balun (score: 33): Author: "Peter Chadwick" <g3rzp@g3rzp.wanadoo.co.uk>; Date: Fri, 8 Jul 2005 14:38:18 +0100; The resonance method is probably the best, but you have to be a long way from the self resonant frequency of the coil. If you're below about 0.8 of the SRF, the apparent resistance = Ractual/(1-ye2)e; /archives//html/Towertalk/2005-07/msg00170.html (10,057 bytes)
69. Re: [TowerTalk] Bazooka 1/4 wave balun (score: 33): Author: Jim Lux <jimlux@earthlink.net>; Date: Thu, 07 Jul 2005 14:26:31 -0700; Ideally, one would be far from the inductor's self resonance (i.e. you'd need that lumped C to form the resonant circuit) (this may not be reasonable for inductors that hams might want to measure, th; /archives//html/Towertalk/2005-07/msg00157.html (13,713 bytes)
70. Re: [TowerTalk] Bazooka 1/4 wave balun (score: 33): Author: "Tom Rauch" <w8ji@contesting.com>; Date: Thu, 7 Jul 2005 16:04:11 -0400; measure Q by one of measuring frequency 3dB bandwidth of you're really at consistent way? A single I don't think so. The 3dB point method assumes you have a perfect lumped capacitor whose reactance; /archives//html/Towertalk/2005-07/msg00150.html (10,570 bytes)
71. Re: [TowerTalk] Bazooka 1/4 wave balun (score: 33): Author: "Tom Rauch" <w8ji@contesting.com>; Date: Thu, 7 Jul 2005 13:25:40 -0400; best what that those for in that The worse thing about measuring a large coil is the physical size. Anything a few coil diameters away affects the coil, as do wire leads used to make connections. I; /archives//html/Towertalk/2005-07/msg00140.html (10,755 bytes)
72. Re: [TowerTalk] Bazooka 1/4 wave balun (score: 33): Author: Jim Lux <jimlux@earthlink.net>; Date: Thu, 07 Jul 2005 08:00:13 -0700; I can't find it here, but somewhere I have a copy of a Masters thesis where the candidate actually used this technique to measure moisture content of wood (or maybe soil samples, I can't recall) by m; /archives//html/Towertalk/2005-07/msg00137.html (10,700 bytes)
73. [TowerTalk] cb bazooka (score: 33): Author: "Michael J. Castellano" <km1r@cshore.com>; Date: Tue, 7 Jun 2005 17:34:01 -0400; You gotta admit, these guys are FAR ahead of us in antenna techonology department ! hi hi hi. Didn't realize that 5kW was the CB "legal limit" W O W !! Keep smiling, and of course, 73! See: http://ww; /archives//html/Towertalk/2005-06/msg00205.html (7,059 bytes)
74. Re: [TowerTalk] 160 Meter Bazooka Reprize (score: 33): Author: "Tom Rauch" <w8ji@contesting.com>; Date: Sun, 1 Aug 2004 21:05:29 -0400; ham station. I use RG 6 CATV drop cable extensively, despite the ratings it works very well even for high power feedlines at low frequencies. Never had a failure in 20+ years of doing that. Never tr; /archives//html/Towertalk/2004-08/msg00013.html (7,861 bytes)
75. [Towertalk] double bazooka (score: 33): Author: jreisert@jlc.net (Joe Reisert); Date: Sat, 06 Jul 2002 16:52:44 -0400; Hi Steve, My point about the G5RV is that as originally configured is that it yields a reasonable match to 50 Ohm on the major ham bands that most modern day radios can match WITHOUT AN ANTENNA TUNER; /archives//html/Towertalk/2002-07/msg00140.html (18,978 bytes)
76. [Towertalk] double bazooka (score: 33): Author: stevekz9g@speakeasy.net (Steve G.); Date: Sat, 06 Jul 2002 12:25:33 -0700; Hi Joe, Thanks for the additional info on the G5RV. It's nice to converse with you on the subject. As a matter of fact, I've never tried a G5RV after seeing one while pulling it up at a friend's hous; /archives//html/Towertalk/2002-07/msg00136.html (16,452 bytes)
77. [Towertalk] double bazooka (score: 33): Author: jreisert@jlc.net (Joe Reisert); Date: Sat, 06 Jul 2002 07:24:43 -0400; Steve, With the G5RV dipole, you get reasonable VSWR on the major bands. On 80 meters it may get to 3:1 or so at edge of band but all my rigs with built in tuners worked fine and never used an extern; /archives//html/Towertalk/2002-07/msg00121.html (14,064 bytes)
78. [Towertalk] double bazooka (score: 33): Author: stevekz9g@speakeasy.net (Steve G.); Date: Sat, 06 Jul 2002 01:08:16 -0700; Yep... it's hard to beat these simplistic center-fed antennas that Tom has described. Just match or "tune" these low loss antenna systems (system = antenna and balanced feed line) with a capable tune; /archives//html/Towertalk/2002-07/msg00118.html (11,807 bytes)
79. [Towertalk] double bazooka (score: 33): Author: n4kg@juno.com (n4kg@juno.com); Date: Sat, 6 Jul 2002 01:20:34 -0600; A *simple* solution to the 100 ft space limited antenna problem is to just install a 100 ft center fed dipole using Ladder Line feeders and an Antenna Tuner such as a Johnson Matchbox. I have 4 Ladde; /archives//html/Towertalk/2002-07/msg00117.html (9,600 bytes)
80. [Towertalk] double bazooka (score: 33): Author: zigm1975@alloymail.com (S. Markowski Jr.); Date: Sat, 06 Jul 2002 05:02:45 +0000; You "CAN" work alot of DX with a G5RV and 100 watts. You will learn one new character trait..... "PATIENCE"! 73, Zig KM9M; /archives//html/Towertalk/2002-07/msg00116.html (8,077 bytes)

Current List: 61 - 80
Page: [1] [2] [3] [4] [5] [6] [7] [8] [9] [10]