Rule of thumb any power < 50 W @ HF represents no problem. 73 W2WU ----- Original Message ----- From: Mark Burlingame <[email protected]> To: allan egleston <[email protected]> Cc: <[email protected]> Sent: 08 May, 2002 23:44 Subject: Re: [Cliffdwellers] hi > Hello Allan, > > Rain gutter antennas are a classic, <SNIP> soild bonding required. need a good antenna tuner <SNIP> rules for RF exposure. <SNIP>