5/8" Heliax is the largest diameter you can use for 5.8 GHz. LDF4.5-50
Sent from my Verizon Wireless BlackBerry -----Original Message----- From: David Hulsebus <[email protected]> Date: Sat, 20 Jun 2009 00:18:39 To: WISPA General List<[email protected]> Subject: Re: [WISPA] MiniPCI Radio Cards I've put in Heliax 1/2" through 1 1/2" cable for 900 and 2.4 I've had some success with 5.8GHz at less than 100ft, never tried it any further either though - it's not within Andrews specs. I believe they provide attenuation data to 2.4 GHz. For 5.8 GHz I use their eliptical Air Heliax cable, I first inherited some when we purchased an old fm radio station tower. I almost got their 900MHz 8ft dish too, but they wanted as a backup for their new tower site as they use it to transmit their music to the tower from the station about 20 miles away. Never lost a radio due to rf issues. It is more up front but protects our more expensive transmitters very well and keeps us from climbing regularly. I'll put Mikrotik boards on a tower or tank with POE and if I loose one I'm not out thousands. I use external antennas and lightning arrestors. We also use APC ethernet surge protectors on all gear at a site, once out of the POE towards coming towards the switch and another prior to entering the switch port. Dave Hulsebus Josh Luthman wrote: > Does that work with 2.4 or 5.8? Or 900? > > On 6/19/09, Kurt Fankhauser <[email protected]> wrote: > >> The 5/8 heliax is cheaper and has slightly less loss. I don't use the >> LMR-900 anymore as it weighs twice as much also. >> >> Here is a picture of what you could do with the Heliax :) I just had a >> lightning storm role by this tower last night which just happens to be by my >> house. Needless to say I slept like a baby knowing I was not going to have >> to replace any equipment from lightning damage. I sleep a lot better at >> night now then I use to a few years back... :) >> >> Kurt Fankhauser >> WAVELINC >> P.O. Box 126 >> Bucyrus, OH 44820 >> 419-562-6405 >> www.wavelinc.com >> >> >> >> -----Original Message----- >> From: [email protected] [mailto:[email protected]] On >> Behalf Of Josh Luthman >> Sent: Friday, June 19, 2009 10:48 AM >> To: WISPA General List >> Subject: Re: [WISPA] MiniPCI Radio Cards >> >> Augh..4 bucks a foot. >> >> What's the difference between LMR900 and 5/8 heliax? >> >> 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 Fri, Jun 19, 2009 at 10:30 AM, Kurt Fankhauser <[email protected]> wrote: >> >> >>> I have done this with LMR400, I ran 150 foot of LMR400 up a tower and put >>> >> a >> >>> 250mw amp at the top. With the choosen antenna I was right at 36db power >>> output. It actually worked very well. Just as good or better than having >>> the >>> radio's at the top. It was a cheap way to put your radio's on the ground. >>> BUT the first time the site got a lightning hit again I was screwed :( >>> >>> So I quickly figured out the cost of replacing amps after 1 hit that I >>> could >>> have spent the extra money on the LMR900 or 5/8 HELIAX and I would have >>> actually come out cheaper by not going the amped route. >>> >>> Kurt Fankhauser >>> WAVELINC >>> P.O. Box 126 >>> Bucyrus, OH 44820 >>> 419-562-6405 >>> www.wavelinc.com >>> >>> >>> -----Original Message----- >>> From: [email protected] [mailto:[email protected]] On >>> Behalf Of Josh Luthman >>> Sent: Friday, June 19, 2009 10:09 AM >>> To: WISPA General List >>> Subject: Re: [WISPA] MiniPCI Radio Cards >>> >>> Is that how we can get 2.4 and 5.8 gear on the ground, with an amplifier? >>> >>> I would love having the gear inside and just coax and amp and antenna >>> outside way up there! >>> >>> On 6/19/09, Jeremy Parr <[email protected]> wrote: >>> >>>> 2009/6/19 Scott Carullo <[email protected]> >>>> >>>> >>>>> My first advice is ditch the amp, not necessary and most likely illegal >>>>> power. You can get what you need out of the minipci card. >>>>> >>>>> You will want to purchase from US distributor, search for RB411 and you >>>>> should have plenty of options, best one probably close to you so you >>>>> >> get >> >>>>> them quickly prices are roughly the same everywhere. Titan Wireless is >>>>> >>> an >>> >>>>> excellent source of Mikrotik Product and they are good to work with. >>>>> >>>>> >>>> I would like to ditch the amps, and run the radios tower-top, but we >>>> >> have >> >>> so >>> >>>> much lightning here. I'd like to limit towertop equipment to an amp, >>>> >>> since >>> >>>> its easy to troubleshoot and replace. This will let me locate the radios >>>> >>> in >>> >>>> the shack at the base, and troubleshoot easily without a climb, or 20 >>>> >>> trips >>> >>>> up and down replacing one bit at a time. I'm only planning on a 250mw or >>>> 500mw amp. >>>> >>>> >>>> >>>> >>> >> ---------------------------------------------------------------------------- >> >>> ---- >>> >>>> WISPA Wants You! 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