ARRL ain't the FCC. And the ARRL's opinion is no mitigation whatsoever if I get an FCC pink slip. The reg is the reg, and it's a strange brew for the FCC, where ERP normally has nothing to do with dBd.
73, Guy. ----- Original Message ----- From: Augie Hansen (via Nabble) To: Guy, K2AV Sent: Thursday, May 07, 2009 5:14 PM Subject: Re: [Elecraft] dBi dBd correction Guy, K2AV wrote: > The way the regulation reads, hams are being told they can put 50 watts PEP > on an antenna, up to the gain of a dipole, and call that 50 watts ERP. > Higher gain must be referenced to the dipole and the 50 watts reduced > accordingly. > > For mobile stations there is no mention of the idea that a LESSER antenna > may have the 50 watts increased. 100 watts appears to be in excess of > regulation. Stated another way, 50 watts max regardless, unless the antenna > has more gain than a dipole in which case power must be reduced by a factor > representing the gain of that antenna over a dipole. > Where did you get that interpretation? The ARRL Q&A, based on the FCC rules, says the following: <quote> The "best" antenna configurations are those with a proven track record on the lower bands, keeping in mind that using a loop or an array of some kind will require you to "do the math" to ensure you are not radiating more than 50 W ERP /in any direction/. The math is fairly straightforward. You must reduce your power by the number of decibels your antenna gain exceeds 0 dBd (0 dB relative to a half-wave dipole). Conversely, you can increase your transmitter power if your antenna exhibits loss compared to a dipole. Be prepared to document these situations in your station records, however. <endquote> Gus Hansen KB0YH ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:elecr...@... This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html -------------------------------------------------------------------------------- This email is a reply to your post @ http://n2.nabble.com/My-%22Attitude%22-tp2789182p2837840.html You can reply by email or by visting the link above. -- View this message in context: http://n2.nabble.com/My-%22Attitude%22-tp2789182p2843062.html Sent from the Elecraft mailing list archive at Nabble.com. ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
