I finally got around to checking swr on my Inverted v fan dipole antenna.On the 10 meter segment the swr is 1:3 can't check the 40 meter on this meter as it's for CB.Any ideas on how I should go about lowering it?
I finally got around to checking swr on my Inverted v fan dipole antenna.On the 10 meter segment the swr is 1:3 can't check the 40 meter on this meter as it's for CB.Any ideas on how I should go about lowering it?
Unfortunately, we need a little more data. Without knowing the antenna's resonant frequency, it's hard to give any advice. However, that CB meter should be okay across the bands as long as you keep the wattage in low.
All the world’s a stage, but obviously the play is unrehearsed and everybody is ad-libbing his lines. Maybe that’s why it’s hard to tell if we’re living in a tragedy or a farce.
The 10 meter is cut for 28.400 MHz and the 40 meter for 7.075 hHz.
1.3:1 is acceptable and that CB meter should be pretty accurate all the way down to 80 or even 160 meters. It's going up in frequency that would be a problem.
He said 1:3, though, that's pretty high. Craig, I figure your antenna should be about 16' 6" long overall, is that what you have there? And how are you feeding it?Originally Posted by N2KKM
All the world’s a stage, but obviously the play is unrehearsed and everybody is ad-libbing his lines. Maybe that’s why it’s hard to tell if we’re living in a tragedy or a farce.
Yeah you're right. I saw it as 1.3 and thought he meant 1.3:1, because normally you would say 3:1 not 1:3. 1:3 would be one heck of an efficient antenna.
1.3 isn't bad. In the old day's a lot of hams used to operate at much higher swr's and they still "worked the world'".
I keep my 2 feet on the ground, and my head in the twilight zone.
When I first got on and for many years after, I never had a clue what my swr was and I had a great time working stations all over. Then, in later years when I could afford a meter, I adjusted my antennas for the best possible swr and couldn't work shit. Some things in life are better left unknown.
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A dummy load has a great SWR. Doesn't make a lot of contacts, however.
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1.3 is a high swr? That's about a 2% power loss. No big deal. Even with a 4 watt output QRP radio ( ;) ) that's a loss of approx .1 watt. The coax itself probably has more loss. And at a 100 watts or so, no big deal. Check your SWR with the CB meter, it will work just fine.
If you're gonna get that fussy, I'd suggest some magic (note the credits at the bottom):
Last edited by WØTKX; 04-21-2012 at 05:35 PM.
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