I think that it's because their Customs procedures are so irksome? I have a friend in the US who ships items over for me and he complains about all the paperwork that he has to complete. 73s Tracey H
BTW, some time ago I made a "super rod" which I intented to use for NAVTEX on 518 kHz, as the electrical noise at my location is very high. It consists of seven 200x9.5 mm rods in heat-shrinking tubi
Stefan Excellent performance for a small ferrite rx antenna. You mention that the loop is better than the ferrite antenna possibly because physically the loop has a larger signal capture area. 73 es
Stefan Schäfer pisze: Jim, LF, I'll try to go on as fast as the distributor and ebay did ;-) So this is the current situation: Decided to use the 2x7 bundle. The cross section area of 7 pcs. just lok
Dear Stefan, LF Group, -- Original Message -- The 20 mV is the peak level (thus mVp ;-) ) while the mentioned 100 uV is rms. OK - so that makes your RX noise level 3dB lower, and gives you 3dB more m
Mal, I know. But anyway one can compare the SNR levels between different antennas. I'll set up a beacon now on 137.73 kHz, testing in QRSS-3. Maybe you want to call CQ or so. If i can receive you, i
Hello Stefan, LF! There is my experimental long ferrite antenna for 136kHz on the picture: lenght - 150cm weight - 16Kg It was made from 75 ferrite pieces 40x40x20mm (2x E) 73! Lubos, OK2BVG Date: Mo
Dear Stefan, Looking good so far... A Q of 486 is certainly reaching the point where it becomes inconvenient - but remember that it is easy to reduce Q (probably connecting a preamp, putting it in a
Jim, LF, Wow, it works very well! I took that Litz wire that is a 30x0.1mm wire in my case and wound 55 turns on a double side bonding tape across the PVC tube. First the Q was low, about 130. I note
Mal, LF, Back from /p from JN49IV75OR Mal, you are the sceptic on ferrite antennas, so pse fasten your seat belt before you take a look on this picture: http://dl.dropbox.com/u/19882028/LF/G3KEV_on_f
Hello Joze, Nice pictures and equipment. But i've never seen you on the band :-( What are you doing now with all the stuff? Do you plan a comeback? :-) 73, Stefan Am 29.09.2011 22:11, schrieb Joze Ko
Maybe a load of hot air will do as well? On 30 September 2011 14:14, James Moritz <[email protected]> wrote: Dear Mal, LF Group, G3KEV wrote: Some commercial produced coils encased in heli
LF, Jim, Markus, I finally finished my preamp for the /p ferrite antenna. It works excellent and allows to stepless adjust the gain. The design is very simple, just using a single BF862 like in my se
Very good... Here I can receive with this my primitive indor ferrite rood antena (in city) in 2004/2005: YU7AR, OK2BVG, OM2TW, S57A...Simply preamp. with BF245. http://lea.hamradio.si/~s52ab/lf_pictu
Stefan es Co Wind an AIR coil with the same inductance as your ferrite coil and compare the difference. It might be slightly larger and slightly more wire resistance but I think the performance will
I did not think that they were expensive $5.25 for a coil with a Q of over 500, and beautiful construction. g3kev current would debatable. results http://taralabs.com/shop?page=shop.product_details&f
Didn't Birmingham use something similar to produce some very deep notch filters when the Beagle disappeared ? G.. Hi Stefan, at the institute I am working we are using lithographic superconducting co
My favourite "scam" has to be a "faboulous product" offered to us by a wholesale supplier just about the time CB was legalised in the UK. This was "guaranteed" to improve the performance of "any" mob
