Off polarization. Not elevation or azimuth. From: TJ Trout via Af Sent: Monday, October 27, 2014 3:39 PM To: [email protected] Subject: Re: [AFMUG] Mounts for trylon supertitan?
30 degrees sector uptilt and only loose 1.2db??? You must be talking about mounting a dish off tilt and then turning it 90 degrees which ends up with some scewed polarity? On Mon, Oct 27, 2014 at 1:03 PM, Sean Heskett via Af <[email protected]> wrote: I knew I should of included an *asterisk in my comment :) Thx Chuck!! On Monday, October 27, 2014, Chuck McCown via Af <[email protected]> wrote: 10 log (cos (tilt angle)^2) 10 degrees = .1 dB 20 degrees = .5 dB 30 degrees = 1.2 dB You can go off polarization up to 20 degrees easy without losing much gain. However, in a dual pol situation, you do lose lots of your cross pol rejection. That falls off much much more rapidly than gain does. From: Sean Heskett via Af Sent: Sunday, October 26, 2014 9:30 PM To: [email protected] Subject: Re: [AFMUG] Mounts for trylon supertitan? Chuck McCown has shown at animal farm using high quality test equipment that tower leg tilt has vertually zero effect unless you are at a 45* angle. With those mounts you can fit 6 x 2' sectors or really any combo of 2' antennas etc. We turned the ubolt bracket backwards and force it to "settle" into the angle iron. There are angle iron to pipe mounts out there if you really want to go that far. The mounts are EXTREMELY strong and galvanized. If the mount was to break you'd have much bigger problems on your hands (like a tornado blew down the tower) We love them and the WISPA membership at wispapalooza voted and gave wbmfg the "product of the year" award for the mounts. On Sunday, October 26, 2014, TJ Trout via Af <[email protected]> wrote: Will that bolt to angle iron? What about the taper of the tower will the mount compensate or the sectors have enough adjustment to have any downtilt ? You think two of those can support 8 sectors and 4x 2ft or 3ft dishes ? On Oct 26, 2014 4:23 PM, "Sean Heskett via Af" <javascript:_e(%7B%7D,'cvml','[email protected]');> wrote: Wbmfg.com M-TOW-3P-48 On Sunday, October 26, 2014, TJ Trout via Af <javascript:_e(%7B%7D,'cvml','[email protected]');> wrote: I'm looking at leasing a aprox 96ft trylon supertitan (at least that's what I think it is) and I need to be able to mount 3-4 sectors and 1-2 backhauls with the ability down the road for 6-8 sectors and 2-4 backhauls, I've browsed through the trylon accessories catalog but nothing really jumps out at me, can someone point me in the right direction as to what I might need to make this happen? Can I make something myself? Or what part numbers I might need?
