[Amps] SB200 on 30 M

[Glen Zook]

You are confusing the power restrictions for the 60-meter band which are now 100-watts effective radiated power with the restrictions for the 30-meter band in the areas controlled by the Federal Communications Commission.  The rules state 200-peak watts out of the transmitter and NOT effective radiated power.  Just like on the other bands except the new LF bands that also have effective radiated power restrictions, you can gain all the effective power that you can in the antenna.  And, unfortunately, if your antenna system has a negative gain, you cannot make up for this by increasing the power out of the transmitter (including any external amplifier).  There are a number of different antenna designs that do exhibit a loss over the "normal" dipole which the FCC considers to be the zero (0) point at which effective power is calculated.

 Glen, K9STH 
Website: http://k9sth.net

      From: Ron Youvan <ka4inm at gmail.com>
 To: amps <amps at contesting.com> 
 Sent: Friday, October 6, 2017 10:51 AM
 Subject: Re: [Amps] SB200 on 30 M
   
    Chris AB6QK Hays wrote:

> I don't know the rules in Canada, but 30 meters is a shared allocation and
> in the U.S. the power limit is 200 watts PEP.  300 watts on 30 meters is
> illegal in the U.S.  Check your local regulations.

  That is true, and a good point, unless you feed a horizontally 
polarized turnstile antenna where a TPO of 400 Watts would be the limit. 
  (-3 dB gain over a dipole)
-- 
  Ron  KA4INM - Youvan's corollary:
                Every action results in unwanted side effects.