Hi Mauro,
I think 40 turns are even better than 80. For 8970 Hz, your loop will
work fine! No problem! As long as you are far away from the man made
noise. Just take a walk and try :-)
I think 80 turns may only be an advantage if one is interested in
frequencies below 2 kHz or so. A year ago i planned some tests on 1670
Hz. This was why i built the loop. Maybe i can proceed with the
experiment soon again.
73, Stefan
Am 17.04.2012 23:39, schrieb IK1WVQ Mauro:
Hi Stefan,
how many turn in your hoola hop ???
My preamp with OP27 works well for SAQ reception with 40 turns hoola
hop , but for 8900Hz ??
73
Mauro IK1WVQ
At 23.20 17/04/12, you wrote:
VLF,
I just built the preamp of Renato Romero's design for a VLF loop
preamp, http://www.vlf.it/easyloop/_easyloop.htm
The circuit is very easy and compact and looks very promising,
http://dl.dropbox.com/u/19882028/VLF/Easyloop.jpg. I took the LT1028
instead of the OP27 though.
I'm looking forward to do a new /p VLF test with my hoola hop loop in
the forest soon.
Is there someone on air during the next days?
73, Stefan/DK7FC
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