Michael, I doubt a 2 meter SWR meter will give you any type of useful information for 440. Many are rated for 1.8 Mhz - 148 Mhz or similar.
Before you blame the antenna, take a look at your coax, primarily the connectors. Make sure the connectors and the coax don't twist if you attempt to move them.
You didn't mention what type of rig you are using. Or how difficult it would be for you to get a close look at the antenna. Since it's homebrew, whatever system you used to match it, might have moved. Consider testing it on the FM part of the band, and see if your rig complains.
If it doesn't, then that's your answer. Your tuning method isn't working. Or, try using a local 440 repeater and see if a local ham will loan you an SWR meter that will work on 440.
73 de W4AS Sebastian
On Jun 3, 2008, at 8:33 PM, Michael Tondee wrote:
I'm having some problems with a homebrew lineasrly polarized "cheap yagi" for 70cm. I don't have any success hearing myself on VO-52 or AO-7. This antenna used to work reasonably well for both. The way the power out meter on my radio acts, it leads me to believe I may have an SWR issue. Unfortunately I don't own or have access to an SWR meter or anylyzer capable of working at 70Cm. I'm going to take a wild shot in the dark here and ask the bb because I sure don't know. Would it be possible to put my 2 meter SWR meter in the 70cm line and at least get a ballpark figure of SWR? Or would the reading be so far off, it would be useless? I'm not intending to try and tune the antenna in this manner, I just want to get some indication as to if SWR is indeed the problem. I must confess I don't know what the frequency range determining elements of an SWR bridge are. I must have missed that at some point or the other. Any other ways to determine if I have an SWR problem without a meter? It's just not in the budget to buy one right now. Any suggestions are appreciated. Tnx and 73, Michael, W4HIJ _______________________________________________ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb