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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[TowerTalk\]\s+Smart\s+antennas\s*$/: 14 ]

Total 14 documents matching your query.

1. [TowerTalk] Smart antennas (score: 1)
Author: "VeeAthreePL" <va3pl@cuic.ca>
Date: Tue, 02 Sep 2003 15:19:02 -0400
There is interesting article by Martin Cooper in July 2003 issue of Scientific American pages 49 to 55. He is talking about Smart and Adaptive antennas. This basically is aimed at cell phones but who
/archives//html/Towertalk/2003-09/msg00017.html (7,672 bytes)

2. Re: [TowerTalk] Smart antennas (score: 1)
Author: "AA6DX" <aa6dx@pacbell.net>
Date: Tue, 2 Sep 2003 13:21:20 -0700
Here's the "teaser" they offer...drat, now have to go get the article! 73 -- Mark AA6DX http://tinyurl.com/m0ex -- Original Message -- From: "VeeAthreePL" <va3pl@cuic.ca> To: <towertalk@contesting.co
/archives//html/Towertalk/2003-09/msg00025.html (9,031 bytes)

3. Re: [TowerTalk] Smart antennas (score: 1)
Author: tongaloa <tongaloa@alltel.net>
Date: Tue, 02 Sep 2003 16:34:41 -0400
The old Iridium phone antennas are a good example of this stuff and discussed at a couple of www accessible sites... -Bob ahi AA6DX wrote: Here's the "teaser" they offer...drat, now have to go get th
/archives//html/Towertalk/2003-09/msg00026.html (10,225 bytes)

4. Re: [TowerTalk] Smart antennas (score: 1)
Author: Jim Lux <jimlux@earthlink.net>
Date: Tue, 02 Sep 2003 14:03:43 -0700
This is an area of great interest to me, both professionally and as an amateur in a fairly rigidly controlled HOA. In fact, I think that adaptive antennae and phased arrays are a reasonably practical
/archives//html/Towertalk/2003-09/msg00030.html (11,735 bytes)

5. Re: [TowerTalk] Smart antennas (score: 1)
Author: Jim Lux <jimlux@earthlink.net>
Date: Tue, 02 Sep 2003 14:29:25 -0700
One could try: http://www.sciamarchive.org/qpdf.cfm?ArticleID_CHAR=99A6D76A-0BE8-1A0D-6A6FA186CAD0B469 which might work (I haven't tried it from a variety of IPs, and it might be IP address or sessio
/archives//html/Towertalk/2003-09/msg00034.html (10,525 bytes)

6. Re: [TowerTalk] Smart antennas (score: 1)
Author: "Michael Tope" <W4EF@dellroy.com>
Date: Tue, 2 Sep 2003 14:59:00 -0700
Seems like an EIRP scheme would take away incentive to make ones antenna better. Why put up a 4-square to get 5dB of extra TX gain, when you would have to derate your transmitter power by that same a
/archives//html/Towertalk/2003-09/msg00036.html (14,048 bytes)

7. Re: [TowerTalk] Smart antennas (score: 1)
Author: Jim Lux <jimlux@earthlink.net>
Date: Tue, 02 Sep 2003 15:24:12 -0700
Or, one could run a 10 kW "active antenna tuner", on each of the 10 elements in the array. While the current regulatory model lets me have 1500 joules/second, I can't exactly distribute them as I see
/archives//html/Towertalk/2003-09/msg00038.html (14,298 bytes)

8. Re: [TowerTalk] Smart antennas (score: 1)
Author: "Michael Tope" <W4EF@dellroy.com>
Date: Wed, 3 Sep 2003 07:00:19 -0700
Actually, another possibility would be to normalize to 1500 watts radiated power (vs. effective isotropic radiated power). This would allow the person with small lossy antennna elements (e.g. your HO
/archives//html/Towertalk/2003-09/msg00051.html (17,909 bytes)

9. Re: [TowerTalk] Smart antennas (score: 1)
Author: "Jim Lux" <jimlux@earthlink.net>
Date: Wed, 3 Sep 2003 07:28:27 -0700
or losses in antenna tuners, etc. Actually, for that matter, I think the FCC is a bit vague on where the reference plane for the power limit is. Say I have a 5 kW amplifier, and I'm using some sort o
/archives//html/Towertalk/2003-09/msg00052.html (11,302 bytes)

10. Re: [TowerTalk] Smart antennas (score: 1)
Author: Bill Turner <wrt@dslextreme.com>
Date: Wed, 03 Sep 2003 07:40:06 -0700
On Wed, 3 Sep 2003 07:28:27 -0700, "Jim Lux" <jimlux@earthlink.net> wrote: _________________________________________________________ The FCC is not vague at all. Here's a quote from Part 97: &sect;97
/archives//html/Towertalk/2003-09/msg00053.html (9,708 bytes)

11. Re: [TowerTalk] Smart antennas (score: 1)
Author: Jim Lux <jimlux@earthlink.net>
Date: Wed, 03 Sep 2003 10:03:02 -0700
_________________________________________________________ The FCC is not vague at all. Here's a quote from Part 97: &sect;97.313 Transmitter power standards. <snip> (b) No station may transmit with a
/archives//html/Towertalk/2003-09/msg00054.html (15,163 bytes)

12. Re: [TowerTalk] Smart antennas (score: 1)
Author: Bill Turner <wrt@dslextreme.com>
Date: Wed, 03 Sep 2003 10:42:10 -0700
On Wed, 03 Sep 2003 10:03:02 -0700, Jim Lux <jimlux@earthlink.net> wrote: <massive snip> _________________________________________________________ If I ever need a jailhouse lawyer, I'll know where t
/archives//html/Towertalk/2003-09/msg00057.html (9,596 bytes)

13. Re: [TowerTalk] Smart antennas (score: 1)
Author: Bill Turner <wrt@dslextreme.com>
Date: Wed, 03 Sep 2003 18:08:37 -0700
On Wed, 03 Sep 2003 10:03:02 -0700, Jim Lux <jimlux@earthlink.net> wrote: _________________________________________________________ That's a good question. I use the lesser of: 1. Peak power as read
/archives//html/Towertalk/2003-09/msg00076.html (10,134 bytes)

14. Re: [TowerTalk] Smart antennas (score: 1)
Author: "Michael Tope" <W4EF@dellroy.com>
Date: Wed, 3 Sep 2003 22:10:08 -0700
Power measurements are notoriously difficult to make. I don't think the FCC is going to raise a stink with anyone who is running less than 2 KW PEP. There was a guy about ten years ago who moved from
/archives//html/Towertalk/2003-09/msg00085.html (18,446 bytes)

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