Guys, I have three articles here written by one Jim Vance. They handle building antennae for aircraft (his own KR2) from co axial cable only. He also explains how to use an SWR meter to tune the antennae. There is no mention of using a specific SWR meter for the freq. I have sent them to Jim Raleigh privately. Maybe someone can post them somewhere for all to see, Mark??? They even have pictures!! Actually they are very well written and could easily have been used in a "how to" text book.
I think Wolfgang is on the right track regarding SWR meters, all I need to measure is the ratio between the forward and reflected power. If the meter is not suited to the freq, then it should give the same error both ways. What else would the level setting be for but to set the needle to max scale for forward power. The reflected power would then be a ratio of that full scale reading----right?? Nowhere on the meters scale does it even mention watts but it does mention RATIO. It is after all a "standing wave RATIO" meter and not a wattmeter. Now if I wanted to measure the actual power then I would need something like a Bird wattmeter. This is my understanding of it anyway and may well be totally screwed up. Regards Dene Collett KR2SRT builder South africa Whisper assembler See: www.whisperaircraft.com mailto: av...@telkomsa.net
