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There may be some however I can't think of any off the top of my head.
Usually the amplifier is built right into the equipment. Nothing
prevents some smart equipment vendor from certifying a system designed
to meet Rick's needs where the equipment and amp is designed to be
mounted at the base of a tower and then a long coax run goes up the
tower to the antenna. Josh Luthman wrote: That actually raises a good question - are there things out there that are certified with an amp for a situation like Rick's?I assume the Tsunami's were as they only exist as a rackmount option. Josh Luthman Office: 937-552-2340 Direct: 937-552-2343 1100 Wayne St Suite 1337 Troy, OH 45373 "When you have eliminated the impossible, that which remains, however improbable, must be the truth." --- Sir Arthur Conan Doyle On Tue, Sep 22, 2009 at 12:41 PM, Jack Unger <[email protected]> wrote:No you can't unless the original equipment manufacturer designed an amp as part of the original system and had their system certified with that amp. RickG wrote: So, you cant legally make up for cable loss with an amp? -RickG On Tue, Sep 22, 2009 at 11:23 AM, Jack Unger <[email protected]> <[email protected]> wrote: Unlicensed freqs don't require a license however you can not legally add an amplifier to a system (in this case, your 5 GHz backhaul) that was not originally certified with the amplifier that you want to use. Hams, who are licensed and who share some frequencies with unlicensed operators do not need an additional license to legally use an amplifier. To avoid mis-use and illegal use of ham amplifiers by unlicensed operators, legitimate sellers of ham amplifiers (and indeed, any amplifier) normally request that you show proof that you are a ham in order to purchase an amplifier. Unfortunately for our industry: 1. 95% of the WISPs who use external amplifiers are doing so illegally. 2. 95% of the companies who sell external amplifiers to WISPs are skating on thin ice. RickG wrote: I am planning to install a 5Ghz backhaul from my main tower to a remote. It will have the antenna on the top, 150' of LMR-400 and the radio at the bottom. To make up for the loss, I ordered a 500mw amp from L-Com. Unfortunately, they cancelled the order saying I need a HAM license to purchase it. I thought unlicensed freqs dont require a license? -RickG -------------------------------------------------------------------------------- WISPA Wants You! Join today!http://signup.wispa.org/ -------------------------------------------------------------------------------- WISPA Wireless List: [email protected] Subscribe/Unsubscribe:http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ -- Jack Unger - President, Ask-Wi.Com, Inc. Author - "Deploying License-Free Wireless WANs" Serving the Broadband Wireless Industry Since 1993www.ask-wi.com 818-227-4220 [email protected] -------------------------------------------------------------------------------- WISPA Wants You! Join today!http://signup.wispa.org/ -------------------------------------------------------------------------------- WISPA Wireless List: [email protected] Subscribe/Unsubscribe:http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ -------------------------------------------------------------------------------- WISPA Wants You! Join today!http://signup.wispa.org/ -------------------------------------------------------------------------------- WISPA Wireless List: [email protected] Subscribe/Unsubscribe:http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ -- Jack Unger - President, Ask-Wi.Com, Inc. Author - "Deploying License-Free Wireless WANs" Serving the Broadband Wireless Industry Since 1993www.ask-wi.com 818-227-4220 [email protected] -------------------------------------------------------------------------------- WISPA Wants You! Join today! http://signup.wispa.org/ -------------------------------------------------------------------------------- WISPA Wireless List: [email protected] Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/-------------------------------------------------------------------------------- WISPA Wants You! Join today! http://signup.wispa.org/ -------------------------------------------------------------------------------- WISPA Wireless List: [email protected] Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ -- Jack Unger - President, Ask-Wi.Com, Inc. Author - "Deploying License-Free Wireless WANs" Serving the Broadband Wireless Industry Since 1993 www.ask-wi.com 818-227-4220 [email protected] |
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