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![]() Yes indeed, the simulation verified that my FINAL PLAN is working OK Two very clean resonances at 3.6MHz and 10.1MHz SWR abt 1.3 on both bands Antenna length only 26m instead of normal 41m for 80m dipole. For the stub section I used 0.003m=3mm spacing and 1.5mm insulation on 1mm wire DielC 2.6. Is there any possibility in EZNEC to calculate how long is quarter WL on 10.1MHz with these stub variables? By using transmmission line objects it could have been possible to use the VF of line 0.73. I did run out of segments to simulate tri-band version with additional parallel dipole. All simulation was made in free space and probably needs some minor tuning in real life. 73 Jouko OH5RM Do you have the ARRL version of the demo, or just the one downloaded from EZNEC? If you have the ARRL version, you can modify a sample design and get all the segments you need; you just can't save the antenna. -- 73 for now Buck, N4PGW www.lumpuckeroo.com "Small - broadband - efficient: pick any two." |
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