9:45 PM
To: WISPA General List wireless@wispa.org
Subject: Re: [WISPA] TV Whitespaces PtP Backhaul
Even in our area in eastern Indiana there is lots of 5.8 still available
for PTP. 700 PTP is not necessary in my opinion.
I am concerned about 700 Mhz antenna sizes. Aren't sectors going
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From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Mike Hammett
Sent: Tuesday, November 18, 2008 12:54 PM
To: WISPA General List
Subject: Re: [WISPA] TV Whitespaces PtP Backhaul
For an idea of antenna size... look at a TV antenna. Same band, same
size
antenna for same gain
Could you elaborate on why this is a bad idea?
I'm slightly interested in it for low cost connections. In my current
area, I don't have a problem finding grain legs for AP sites. These
would be dense enough that I could build a great network with white
spaces cells and 5GHz backhauls.
But
Wonder why it attached the reply...
- Original Message -
From: Chuck McCown - 3 [EMAIL PROTECTED]
To: WISPA General List wireless@wispa.org
Sent: Tuesday, November 18, 2008 5:41 PM
Subject: Re: [WISPA] TV Whitespaces PtP Backhaul
: Tuesday, November 18, 2008 5:22 PM
Subject: Re: [WISPA] TV Whitespaces PtP Backhaul
Look at the BLONDER TONGUE BTY-10-U UHF single channel units
Third photo down on the left.
I'd look hard at these as CPE antennas...
Steve Barnes wrote:
That's scary. And that's only a receiver
We have been fighting it. Towerstream seems to have somehow created a
perception that they are justified in this desire to set aside TVWS spectrum
for this inefficient use. We have been fighting it and we will continue to
do so.
Scriv
On Mon, Nov 17, 2008 at 7:34 PM, Mike Hammett [EMAIL
Even in our area in eastern Indiana there is lots of 5.8 still available
for PTP. 700 PTP is not necessary in my opinion.
I am concerned about 700 Mhz antenna sizes. Aren't sectors going to be
huge to get the 4 watt at the antenna? I am also concerned about the
CPE Panel size. Going from a
At these freqs, I'd suspect that yagi's will be the best choice for
cpe's.
Steve Barnes wrote:
Even in our area in eastern Indiana there is lots of 5.8 still available
for PTP. 700 PTP is not necessary in my opinion.
I am concerned about 700 Mhz antenna sizes. Aren't sectors going to
I don't recall the exact length but we have an enormous fiberglass 450
mhz omni on our tower. At least 12 ft and it withstood the hurricane
of Ohio with 60 mph winds a few months back.
On 11/17/08, Steve Barnes [EMAIL PROTECTED] wrote:
Even in our area in eastern Indiana there is lots of 5.8
I am concerned about 700 Mhz antenna sizes. Aren't sectors going to be
huge to get the 4 watt at the antenna?
To be clear, TVWS is different than 700 MHz. The 700 MHz band sold at
auction. TVWS is lower in frequency which will mean even larger antennas for
equivalent gain. The physics of it
I've got territory ranging from a town of 35K to open wheat fields to
rolling to tall mountains heavily forested.
I can find no particular need for, and in fact, find that low frequency
backhauls are at least sometimes self-defeating, due to huge Fresnel zones,
for instance. What I need, in
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