[TowerTalk] Th6dxx swr

jimlux jimlux at earthlink.net
Wed Oct 15 00:30:46 EDT 2008


Bob Ortasic wrote:
>>From KN8M..
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> Just finished putting together a th6dxx. I have it on a mast approx 6foot off the ground for testing..
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> I cut all three bands for the low end (CW). I don't spend a lot of time on SSB and figured the rig tuner will take care of SSB contacts..
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> Using an MFJ SWR Analyzer I find that the resonant freq on all 3 bands are below the bottom edge of the band. I haven't graphed it yet.. But on 20 mtrs am 2:1 at about 14030?? Anyone have any thoughts..
> 

Not surprising that close to the ground, which essentially puts a lossy 
capacitor in parallel with the element. Try pointing it straight up, 
rather than horizontally.




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