Receiving VLF with PC and software only

>> YOUR LINK HERE: ___ http://youtube.com/watch?v=UrJ77GiBNQw

Press Show More to see all description: • What a wonderful Software ! Thanks to Johan, SM6LKM who originally made this open source software and thanks to Roland, SWL_JO30TB from Germany, who added more features to this simple program (SAQ version094). • Just start the software (you don`t even need to install it), connect the antenna to sound card Mic or Line input and start receiving ! • In this video, the antenna is connected in Line input of the soundcard. The Mic input has much more sensitivity and then it should be used some kind of variable attenuator... • If your PC-soundcard has 192 KHz samplerate, than you can receive from DC to 96 KHz of RF spectrum. • If your PC-soundcart has 96 KHz, samplerate, than you can receive from DC to 48 KHz of RF spectrum. • If your PC-soundcard has 44 KHz samplerate, than you can receive from DC to 22 KHz of RF spectrum. • Antenna is Mini-Whip. It is excellent and cheap DIY active antenna. • Especially for lower frequencies! (VLF up to lower HF bands) • Some people who report poor performance of this antenna did not followed the rules of proper installation! • Grounding the outer conductor (shield) of the coaxial cable has to be done properly! • Coaxial cable is part of Mini-Whip antenna and collect a lot of RF noise. • You can treat Mini-Whip antenna as a vertical antenna feeding at the top where the impedance is very high. Outer conductor of the coaxial cable must be grounded at the bottom of antenna, where the coaxial cable touching the ground, and the second grounding have to be done at the point just before coaxial cable entering in the house. • The RF isolating transformer is recommend also. • In that way receiver ground is not physically connected to antenna ground but it is galvanic isolated from outer shield of coaxial cable. • All this measures is not difficult to implement and cost almost no money, but the benefit is clear, noiseless VLF and HF reception! • Mini-Whip antenna must be placed as far as possible from houses, buildings and power lines! • Here is the link of my Youtube video, with schematics of the Mini-Whip and Power supply (power inserter, or Bias-tee for powering the antenna thru the coaxial cable): • • Mini Whip Active Antenna • 73, • Mile kokotov, Z33T

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