Hi Guys, I've been doing research on 160-meter Inverted L's and would appreciate your thoughts on the following: 1) Some people report that the 160-m. Inverted L can be fed directly with 50 ohm coax
I do not believe an L will provide 50 ohms at the base. I believe it is closer to 22 ohms. Everyone I know has some type of matching. This could be an unun or caps. You really need to have radials fo
Dick, One of my transmitting antennas is a 1/4 wavlength-long 160M inverted-L with direct 50 ohm feed, and it works just fine. As long as your transmitter can handle reasonable VSWRs, up to perhads 2
Yes, if use you RG8, it isn't too long, and have a decent tuner between the coax and the transmitter. I've done that for more than a year, with decent results. The TenTec 229 and 238 series of tuners
I use coaxial inverted Ls. Direct feed and no tuner needed if feeding a single coaxial inverted L. (I phase multiple inverted Ls and that does require a tuner). The coaxial inverted L does require ra
ORIGINAL MESSAGE: -- REPLY FOLLOWS -- If you are concerned about getting an exact 50 ohms at the feedpoint, a simple L-network will do it for you. See any ARRL handbook or Antenna book. Also, I stron
I'll certainly second that. I used my Palstar ZM-30 analyzer on all my antennas (except the SteppIR) and it made a HUGE difference. The SWR on my 160 inverted L is spot on at 50 ohms where I normally
Another approach, that gives a 50 ohm match without capacitors or transformers, is to use an inverted-L that is about 3.5 feet shorter than resonance and place a shunt coil (about 4.7 uH) across the
You can feed an inverted L directly, however if having a lower SWR makes you happier a hair pin coil will work very well. They are simple and inexpensive and also bleed any static from your antenna.