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Date: Sun, 03 Jun 2007 14:25:43 +0100
From: "Rob, M0DTS" <rob@m0dts.co.uk>
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Subject: LF: 136kHz Getting started..
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Status: O

Hi All..

Just found this list and seems like the only sort of forum on the net to 
do with LF!

I'm just looking into 136kHz and looking for a few pointers..

I've temporarily built a loop similar to G3LDO's super loop (but not in 
the pvc tube) and got it resonant but cannot tell how high Q it is..
Only equipment i have that will check the loop out is a DDS wobbler unit 
that i can connect up across teh pick up loop and see it is resonant 
around 136-138kHz...
I'm feeding the loop into a simple sa612 mixer and 100kHz LO and sending 
the IF into the sound card at 36-38kHz.
I've only got basic knowledge of home brew stuff so looking for a simple 
setup to get me receiveing to see if it will be worthwhile making a 
transceiver for the band...

So far I've not seen anything on the band apart from qrm...hi  
especially on 137.4  +/-100Hz a noise band that is always there.
Are there any beacons active all the time or is there anything just 
outside the band i can look for to check the system is working?
When are the best times to find stations active?

Any comments welcome!

Thanks

Rob

M0DTS - IO94IL