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| Ocf dipole or efhw ? https://hamradiodeals.co.uk/forums/viewtopic.php?f=43&t=140549 |
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| Author: | G0LZX [ Sun Jan 19, 2025 11:49 am ] |
| Post subject: | Ocf dipole or efhw ? |
I'm about to change my efhw which is abt 63ft long sloper to be able to cope with a bit more power BUT I'm wondering if I'd benefit from an ocf dipole of similar length in an inverted V config ?? The centre point is around 30ft high and it slopes down to abt 8ft either side ... Any info appreciated especially if you've done this yourself ? Cheers Ricky |
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| Author: | gm0gtu [ Thu Jan 23, 2025 12:15 pm ] |
| Post subject: | Re: Ocf dipole or efhw ? |
Ricky, I have a centre-fed inverted V doublet approx. 50 Metres long, fed with 450 Ohm ladder line via a balanced ATU. The ATU is a high power unit, and will handle 1KW no problem. It works well on all HF bands + 6M & 4M. It's one of the oldest antenna designs, and one of the simplest antennas to make. Length is not critical at all, and the feed-point can be off-centre if it's more convenient. The biggest expense is the ATU if you don't already own one, but it's a once in a lifetime purchase. The MFJ balanced ATUs are very good, and sometimes appear for sale on here. |
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| Author: | G0WYD [ Sat Jan 25, 2025 3:33 pm ] |
| Post subject: | Re: Ocf dipole or efhw ? |
G0LZX wrote: I'm about to change my efhw which is abt 63ft long sloper to be able to cope with a bit more power BUT I'm wondering if I'd benefit from an ocf dipole of similar length in an inverted V config ?? The centre point is around 30ft high and it slopes down to abt 8ft either side ... Any info appreciated especially if you've done this yourself ? Cheers Ricky Ricky. I made my 49:1 with 3 cores and it handles 1kw no bother, but with ltd space here its all I can get up, i can not have a centre feed point until sky hooks are made, so I am sot of stuck. Good luck, if you build it it will work and if you use proper stuff…… job done mate. Bob. |
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