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Many thanks Reg, good link.
Thierry "Reg Edwards" wrote in message ... What becomes all the energy sent by my TX on 160m ? What become de standing waves and reactive load ? Is it possible than all 100W are lost in the coax or the feeder without be emitted ? Who could explain me this ? Thanks Thierry ON4SKY =========================== G5RV - WHERE THE POWER GOES ON 160m Efficiency = Power into / Power out of Efficiency % Location ========= ======= 70.4 L-tuner 21.9 Coax line 78.8 Open wire line 11-6 Antenna wire and soil under anrenna Overall radiating efficiency at 1.9 MHz = 1.40 % or 18.5dB, or 3 S-units down relative to a very high 1/2-wave dipole. Download program DIPOLE3 from website below. It analyses performance of any dipole, of any length, any wire diameter at any height, and any lengths of any types and combinations of feedlines. Also calculated are L and C component values of L-network to match to 50 ohms. ---- ======================= Regards from Reg, G4FGQ For Free Radio Design Software go to http://www.g4fgq.com ======================= |
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