Looking for something portable that would show the spectrum 160-2M with some kind of small loop directional antenna. The purpose is to walk the neighborhood looking for noise sources. I had used my c
Dusk to dawn may be a defective street lamp. It fails to start and repeatedly retries from dusk to go dawn. Usually, however, the raucous noise covers many bands, not just a few frequencies. Ken WA
Yeah, it is weird that when I sweep the bands there are only 3 frequencies, all in the lower 160M band that are affected. Next step is to go beyond about 2 blocks in the westerly direction. N2TK, Ton
Hi, I have been using an SDRPlay RSP-1, and one of those portable seven inch "official" Raspberry Pi touch screens, and the "official" case, as my goto portable SDR/loop. I set up my portable SDR usi
Hi Ken, Look for the off and on times. If they are changing slowly across a week, it may be light controlled, like a street, or garden light. If the start/stop times seem locked to almost the exact s
I use a grundig g5 sw/fm receiver. Has nice directional pattern on the low bands, can follow a null right to a source with it. David Robbins K1TTT e-mail: mailto:k1ttt@arrl.net web: http://wiki.k1ttt
I have never been able to display more than 8 MHz with the SDRPlays. However, with the AirSpy using the SpectrumSpy application which comes with a download of SDR#, I am able to display on one screen
I have used a RF Explorer <http://j3.rf-explorer.com/> to find general indications of the interference with a directional antenna, and then used a laptop to record a recording of the offending signal
My question is not the SDR (I have one running), or even "How the heck did you get it running on an rPi (software etc) but... I always see references to loop antennas, and have even seen a few links
Charles raises a great topic - one that must have simple answer - but which has confounded me for a long time. Perhaps we should start a new topic subject line. Alan, K0AV ___________________________
Getting slightly off topic, this might help: http://www.66pacific.com/calculators/small-transmitting-loop-antenna-calculator.aspx 73s and thanks, Dave NK7Z https://www.nk7z.net On 07/13/2018 10:22 AM
Loop antennas do not have to have a capacitor to resonate them. you can make a simple loop with just a couple turns of wire... for hf I use about 12" diameter and 2 or 3 turns, whatever I had handy..