Hah! :) Mount it next to a "Don't tread on me" flag.
On Nov 8, 2016 8:46 AM, "Chuck McCown" <ch...@wbmfg.com> wrote: > You can save a ton of money by not bothering with that pesky coordination > licensing stuff. Just put a label on the radio that it is property of the > sovereign nation of (insert competitors name). > > *From:* Hardy, Tim > *Sent:* Tuesday, November 08, 2016 7:43 AM > *To:* af@afmug.com > *Subject:* Re: [AFMUG] Class A and B antennas > > > At 11 GHz, 5 km is correct and paths under 5 kms can be coordinated and > licensed as long as the EIRPs are restricted per the equation. At 6 GHz, > the minimum distance is 17 kms. and the same equation applies for paths > less than this distance. > > > > *From:* Af [mailto:af-boun...@afmug.com] *On Behalf Of *Ken Hohhof > *Sent:* Tuesday, November 08, 2016 9:05 AM > *To:* af@afmug.com > *Subject:* Re: [AFMUG] Class A and B antennas > > > > Hmmmm, can you clarify on minimum distance? I was not aware of a min > distance on 11 GHz, but if it’s only 5 km, maybe that was just never an > issue. But I thought min distance at 6 GHz was more like 10 miles. Did I > miss a change? > > > > *From:* Af [mailto:af-boun...@afmug.com] *On Behalf Of *Daniel White > *Sent:* Tuesday, November 8, 2016 6:29 AM > *To:* af@afmug.com > *Subject:* Re: [AFMUG] Class A and B antennas > > > > Mostly answered… but I’ll take a stab: > > > > Class A vs Class B is about side-lobe suppression and F/B ratio. ETSI > classes are the same way – and Class 4 antennas as Eric pointed out are a > rare beast > > > > - For 11GHz, the smallest Class A antenna is the VHLP800 > (2.6ft). Most 3ft antennas are actually a little bit bigger than 3ft > (99cm) > > - For 18GHz, the smallest Class A antennas I am aware of are 2ft > > - Minimum distance for 11GHz and 6GHz is covered under FCC Part > § 101.143, with the minimum distance being 5km (roughly 3.12mi). If you > want to go shorter, than the max coordinated power you can use is > calculated like this: > > > > *EIRP = MAXEIRP–40*log(A/B) dBW * > > > > EIRP = The new maximum EIRP (equivalent isotropically radiated power) in > dBW. > > MAXEIRP = Maximum EIRP as set forth in the Table in Section 101.113(a). **This > is +55dBW for 11GHz** > > A = Minimum path length from the Table above for the frequency band in > kilometers. **This is 5km for 11GHz** > > B = The actual path length in kilometers. > > > > NOTE: For transmitters using Automatic Transmitter Power Control, EIRP > corresponds to the maximum transmitter power available, not the coordinated > transmit power or the nominal transmit power. > > > > Daniel White > > Managing Director – Hardware Distribution Sales > > ConVergence Technologies > > Cell: +1 (303) 746-3590 > > dwh...@converge-tech.com > > > > *From:* Af [mailto:af-boun...@afmug.com] *On Behalf Of *SmarterBroadband > *Sent:* Monday, November 7, 2016 6:34 PM > *To:* af@afmug.com > *Subject:* [AFMUG] Class A and B antennas > > > > Does anyone make a 2 foot Class A antenna for 11 GHz? Or is 3 foot the > minimum. > > > > Does anyone make a 1 foot Class A antenna for 18 GHz? Or is 2 foot the > minimum. > > > > Is there a minimum distance for a 11 GHz link? > > > > Thanks > > > > Adam > > > > > <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient&utm_term=icon> > > Virus-free. www.avast.com > <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient&utm_term=link> > > >
