CQHQ

More than just a Ham radio blog.
CQHQ
is an informative, cynical and sometimes humorous look at what is happening in the world of amateur radio.

Saturday, 18 July 2009

G4ILO Wonder Loop

G4ILO's latest project looks like a bit of fun, the G4ILO Wonder Loop. When he releases a few more details I might just give one a go. It looks like he is following the principle of the Wonder Wand and Miracle Whip to make a small compact tuned loop. The Wonder Loop is an attempt to make a QRP version of the MFJ Loop Tuner. A small coupling loop plugs into an RCA socket which connects it to an N7VE QRP SWR indicator built into the box.

All my friends will know I am super critical of antennas such as the Wonder Wand and Miracle Whip, but loops have some interesting properties. I have a Miracle Whip which came with my FT-817 and I am quite amazed that it receives as well as it does. It it complete garbage for transmission and I have never managed to work anything on it despite hours of tests even down to the end of the street when the other station was picking me up on milli-watts into a rubber duck antenna. The Miracle Whip in my opinion is a dummy load with a telescopic antenna attached and is correctly named because it is a miracle if you work anything on it.

What I am hoping is even if this idea turns out to be a poor performer on TX that on RX it could provided a reasonable signal with a lower noise floor than the main station antenna allowing some borderline stations to be worked who I could not hear normally at a much lower cost than a full size loop. Someone should warn me girls that I have my eye on their hula-hoops.

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