The yagi looking thing is for channels above 12 (UHV) and the thing with the elements is for channels 2-12 (VHF)

 

Kurt Fankhauser

WAVELINC

114 S. Walnut St.

Bucyrus, OH 44820

419-562-6405

www.wavelinc.com

 

-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Ron Wallace
Sent: Tuesday, January 31, 2006 3:05 PM
To: WISPA General List
Subject: Re: [WISPA] TV band issue.

 

To demure, aren't off-air TV antennas a combination of yagi and log-periodic, forming a broadband multi-element device.  A hybrid of sorts??

>-----Original Message-----
>From: John Scrivner [mailto:[EMAIL PROTECTED]
>Sent: Tuesday, January 31, 2006 11:55 AM
>To: 'WISPA General List'
>Subject: Re: [WISPA] TV band issue.
>
>There is no physics to back up that using a directed television yagi
>antenna would be a bad thing. With that said I do not think using
>existing TV antennas would be very practical. The 75 ohm impedance for
>a 50 ohm radio is a problem. This would require a 50 to 75 ohm balun
>connector at the radio to make it work. Existing television yagi
>antennas will easily transmit as well as receive within the television
>band without any noise problems. If you ever used an old television
>tower rotor you know the antennas are fairly directive in nature. I
>would likely always install my own antenna unless the customer just
>happened to have a great outdoor setup in place. I would not like to
>have customers complaining that they lost their Internet when someone in
>the house turned the rotor.
>:-)
>Scriv
>
>
>
>Tom DeReggi wrote:
>
>>> AND many homes already
>>
>> have the antennas we need installed!!!!
>>
>> Don't forget, TV was a broadcast technology, withthe antenna's
>> puirpose to receive only.
>> Not sure I'd want to use those existing TV antenna, for transmitting.
>> Talk about creating noise in the spectrum.
>>
>> Tom DeReggi
>> RapidDSL & Wireless, Inc
>> IntAirNet- Fixed Wireless Broadband
>>
>>
>> ----- Original Message ----- From: "Marlon K. Schafer (509) 982-2181"
>> <[EMAIL PROTECTED]>
>> To: "FCC Discussion" <[EMAIL PROTECTED]>
>> Cc: <wireless@wispa.org>; <isp-wireless@isp-wireless.com>
>> Sent: Tuesday, January 31, 2006 11:02 AM
>> Subject: [WISPA] TV band issue.
>>
>>
>>> Hi All,
>>>
>>> You may be interested in this.
>>>
>>> http://www.jhsnider.net/telecompolicy/ First article, click on the
>>> word "here". It's in word format.
>>>
>>> I think this is something that we need to be working on. WISPA is to
>>> some extent, but it's a big issue against powerful opponents and
>>> those working on this issue are already time crunched big time.
>>>
>>> Please be aware, if we can get TV bands or even TV band white spaces
>>> opened up we'll have tree and house penetration abilities. AND many
>>> homes already have the antennas we need installed!!!!
>>>
>>> This may well be the biggest issue for the wisp industry since
>>> unlicensed in the first place.
>>> laters,
>>> Marlon
>>> (509) 982-2181 Equipment sales
>>> (408) 907-6910 (Vonage) Consulting services
>>> 42846865 (icq) And I run my own wisp!
>>> 64.146.146.12 (net meeting)
>>> www.odessaoffice.com/wireless
>>> www.odessaoffice.com/marlon/cam
>>>
>>>
>>>
>>> --
>>> WISPA Wireless List: wireless@wispa.org
>>>
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>>
>>
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