Re: {Collins} 30S-1 antenna relays‏

What you are referring to as a “sine wave” is actually a hyperbolic wave.  Check the transmission line formulas and you will see why this is so.   At low SWRs, and 75 ohms is only 1.5:1, it does appear to be a sine wave but it isn’t.  Just some FYI.
73 and DX,
   Jim,   KJ7NW

> On Apr 19, 2015, at 11:45 AM, Max Cotton <m0ghq@xxxxxxxxxxx> wrote:
> The 'sinewave swr' was caused by a piece of 75 Ohm coax that somehow got into the system, anyway the output is still noisy so need to clean those relays. 73 MaxM0GHQ 		 	   		  
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