Search String: Display: Description: Sort:

Results:

References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[TowerTalk\]\s+Bazooka\s+antenna\s*$/: 17 ]

Total 17 documents matching your query.

1. [TowerTalk] Bazooka antenna (score: 1)
Author: "Tom Osborne" <w7why@frontier.com>
Date: Mon, 7 Nov 2011 21:54:21 -0800
Hi All I've been looking at some info on the Double Bazooka antenna. I know the 'wide band' aspect has been debunked, but in looking at the design, would it be a quieter antenna? I see that low band
/archives//html/Towertalk/2011-11/msg00132.html (6,837 bytes)

2. Re: [TowerTalk] Bazooka antenna (score: 1)
Author: "Mike" <noddy1211@sbcglobal.net>
Date: Mon, 7 Nov 2011 22:49:53 -0800
I use full-size Double Bazookas on 160m and 80m, they actually are not bad on bandwidth. The 160m certainly has greater bandwidth than the Carolina Windom that I had up and is quieter. I adjusted the
/archives//html/Towertalk/2011-11/msg00135.html (8,515 bytes)

3. Re: [TowerTalk] Bazooka antenna (score: 1)
Author: Steve Hunt <steve@karinya.net>
Date: Tue, 08 Nov 2011 09:24:35 +0000
Tom, Wanted signals are EM waves; noise signals are also EM waves. I wonder what characteristic of a Double Bazooka might allow it to distinguish wanted EM waves from unwanted ones in a way that a co
/archives//html/Towertalk/2011-11/msg00139.html (8,235 bytes)

4. Re: [TowerTalk] Bazooka antenna (score: 1)
Author: Jim Brown <jim@audiosystemsgroup.com>
Date: Tue, 08 Nov 2011 08:36:13 -0800
ANY off-center fed antenna (like the Windom) will be inherently noisy because it is badly unbalanced, which makes the feedline part of the antenna. THAT'S why your Bazooka seemed quieter by compariso
/archives//html/Towertalk/2011-11/msg00142.html (8,213 bytes)

5. Re: [TowerTalk] Bazooka antenna (score: 1)
Author: David Gilbert <xdavid@cis-broadband.com>
Date: Tue, 08 Nov 2011 10:27:17 -0700
As I mentioned to Tom privately, W8JI has some notes on his website regarding this topic. The idea of "shielded conductors" having better noise performance is a myth, and is typical of those that (as
/archives//html/Towertalk/2011-11/msg00143.html (9,841 bytes)

6. Re: [TowerTalk] Bazooka antenna (score: 1)
Author: Grant Saviers <grants2@pacbell.net>
Date: Tue, 08 Nov 2011 10:45:50 -0800
My store bought bazooka was quiet - both noise and signals. My 80-40-20 fan dipole works better. A tuner matches the feedline Z at band edges and 80m coax swr losses are very low using RG8 or better.
/archives//html/Towertalk/2011-11/msg00144.html (10,971 bytes)

7. Re: [TowerTalk] Bazooka antenna (score: 1)
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)

8. Re: [TowerTalk] Bazooka antenna (score: 1)
Author: "Gene Fuller" <w2lu@rochester.rr.com>
Date: Tue, 8 Nov 2011 15:26:12 -0500
YES, particularly for 40 and 80 (and of course 160), if can't get down a good radial system and you're thinking horizontal polarization, first put your time and money into getting height, then antenn
/archives//html/Towertalk/2011-11/msg00146.html (10,263 bytes)

9. Re: [TowerTalk] Bazooka antenna (score: 1)
Author: "Joe Subich, W4TV" <lists@subich.com>
Date: Tue, 08 Nov 2011 15:51:34 -0500
- snip - Quarter wave slopers need a good ground system for optimum performance. The support tower is connected to the ground - even just the lightning protection ground - and significant current wi
/archives//html/Towertalk/2011-11/msg00147.html (11,571 bytes)

10. Re: [TowerTalk] Bazooka antenna (score: 1)
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)

11. Re: [TowerTalk] Bazooka antenna (score: 1)
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)

12. Re: [TowerTalk] Bazooka antenna (score: 1)
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)

13. Re: [TowerTalk] Bazooka antenna (score: 1)
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)

14. Re: [TowerTalk] Bazooka antenna (score: 1)
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)

15. Re: [TowerTalk] Bazooka antenna (score: 1)
Author: Rob Atkinson <ranchorobbo@gmail.com>
Date: Thu, 10 Nov 2011 08:06:59 -0600
That's all wonderful but crusades with hams are usually counter productive. I submit that a detectable 2nd harmonic qualifies as a real problem especially if it is out of a ham band. 73 Rob K5UJ ___
/archives//html/Towertalk/2011-11/msg00170.html (8,918 bytes)

16. Re: [TowerTalk] Bazooka antenna (score: 1)
Author: Jim Brown <jim@audiosystemsgroup.com>
Date: Thu, 10 Nov 2011 08:44:19 -0800
You might want to study FCC Rules on the subject before making that statement. They are, in general, tied to the extent of harmonic suppression below the level of the fundamental, and to "good engine
/archives//html/Towertalk/2011-11/msg00172.html (9,469 bytes)

17. Re: [TowerTalk] Bazooka antenna (score: 1)
Author: David Gilbert <xdavid@cis-broadband.com>
Date: Thu, 10 Nov 2011 09:45:39 -0700
a. So publicly advocating against the use of fan dipoles is not a "crusade" of sorts? b. You think bad key clicks and SSB splatter 3 db down aren't at least as easy to detect as a harmonic 30 db down
/archives//html/Towertalk/2011-11/msg00173.html (9,597 bytes)

Current List: 1 - 17
Page: [1]
This search system is powered by Namazu