You can now help support WorldwideDX when you shop on Amazon at no additional cost to you! Simply follow this Shop on Amazon link first and a portion of any purchase is sent to WorldwideDX to help with site costs.
The Feb 2025 Radioddity Giveaway Results are In! Click Here to see who won!

Reply to thread

Message

Yes your way off.almost 1/2 wave at 15m not 20. not even close to 1/4 at 40 .Anyway end fed vertical 1/4 waves dont work well. unless you have a good ground radial system Also the matching network designed for about 200 ohms of a 5/8 it is only going to make the match worse at 1/4 wave . Yes you can use a tuner and make your radio happy .But at 40 m the 2k is little more than a dummy load.Not much better on 20 but does work fairly well on 15 although it shouldn't due to the mismatch (end fed halfwave impedance is over a thousand ohms) must be some huge losses in that matching network.

[QUOTE="vkrules, post: 517589, member: 24352"] Yes your way off.almost 1/2 wave at 15m not 20. not even close to 1/4 at 40 .Anyway end fed vertical 1/4 waves dont work well. unless you have a good ground radial system Also the matching network designed for about 200 ohms of a 5/8 it is only going to make the match worse at 1/4 wave . Yes you can use a tuner and make your radio happy .But at 40 m the 2k is little more than a dummy load.Not much better on 20 but does work fairly well on 15 although it shouldn't due to the mismatch (end fed halfwave impedance is over a thousand ohms) must be some huge losses in that matching network. [/QUOTE]

Top Bottom