YMMF??

I have KA-31 into my Kaito and it seem to work ok hanging by my bedroom
window. It's about as good as the whip, but easier to manage when I'm
laying in bed. I use it to keep occupied when insomnia strikes.
I intend to take my KA1103 and the loop on the road at the end of the
month. I'll hang the loop up from a tall tree limb at my camp sites.

I often wonder what is inside the loop antenna. Maybe just one loop of
wire with the tuning mechanism in the part that plugs into the radio
along with a mosfet preamp. I can't imagine they are using varactor
diodes to tune such a large frequency range.

Hey pure,
Why dontcha just take the thing apart and do some reverse engineering
and let us know what's inside for parts and how they're wired.

73
NEO

RHF wrote:
weatherall wrote:
pure Wrote:
What a piece of CRAP this antenna turned out to be.......almost the
price of the radio itself !!!

This is why it's crap:

1) the reception is WORSE with the antenna, than using the whip
antenna on my degen radio, model DE1102 !!! I actually get the signal
properly, and can listen to the program with the radio, but then the
show disappears completely if Iuse the external DE31 antenna!

2) the batteries AAA inside the antenna, to power it, run down pretty
fast. I recharged a pair just before, and they were run down 2 or 3
hours later, when I gave up.

3) it's not clear how the de31 can give a better signal, unless you're
in a manhole, in a military bunker, underground and you need to have a
connection to the surface 5 m away. This would be the only conceivable
use for this antenna.

What a huge waste of money, this de31 !!!

I had problems with my DE31 until I figured out that the wire between
the antenna and the radio was backwards. I had the tuner close to the
loop at first, and it basically eliminated the signal. Maybe most
people don't make this mistake though.

I use duracell alkaline AAA batteries in my DE31 and they have been
there since last winter. They're still working.

Rotate the antenna so that the hole faces the direction of the
transmitter. If plugging the antenna in seems to provide poor
reception, try clipping it to the whip with the white clip, and clip
the black clip to a ground wire.

--
weatherall

WA - Good Degen DE31 Shortwave Loop Antenna use Tips ~ RHF
.
.
. .