[Amps] 1.3K-FA

[Glen Zook]

The rule is only for commercially manufactured amplifiers that are offered for sale in the United States and possessions.  Home brew amplifiers, modified amplifiers, etc., are exempt from the regulation.  You do need to make sure that the amplifier meets the standards in 47 CFR Part 97 Section 97.307.  However, all equipment needs to meet 97.307 no matter what the origin.

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

      From: John Simmons <jasimmons at pinewooddata.com>
 To: Roger D Johnson <n1rj at roadrunner.com> 
Cc: Amplifier Reflector <amps at contesting.com>
 Sent: Friday, May 5, 2017 11:44 AM
 Subject: Re: [Amps] 1.3K-FA
   

See: http://w6pql.com/parts_i_can_provide.htm about 2/3 down the page, 
"**HF, VHF and UHF input attenuators for LDMOS amplifiers", **Then 
"Click here for additional info" Jim's boards are very nicely made and 
inexpensive**. **Pick out what you want and order from him. He usually 
ships from stock and is great to deal with.

Subtract 15dB from the gain of your amp, then buy the attenuator to 
match. However I don't think the rule applies to homebrew amps.**
**