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Regarding the amplifier: It's like using a crystal set to receive solar emissions. Yes, get a better amp. Dave - W?LEV gmail.com@groups.io> wrote: -- *Dave - W?LEV*

Hi Dave Come on, obs a typo.. Also re giving noise floor relating to s reading on radio. Yes I agree abit iffy, but good enough for the reference I was trying to give..ie. If live in urban noise

30 mhz? That's in the realm of acoustic earthquake signatures! Possibly you mean 30 MHz indicating MEGAHERTZ? Dave - W?LEV yahoo.com@groups.io> wrote: -- *Dave - W?LEV*

Try the ITU standard: https://www.kechuang.org/reader/pdf/web/viewer?file=%2Fr%2F120990?time%3D1737042764170 It shows almost every radio frequency below 30 mhz as impaired. i.e. Ambient noise

Cross connecting the cables will result in a lower value of inductance (due to mutual inductance), but you will also get cancellation of the received signals due to the phase

It's too bad it's not possible to edit a posting. Correction: The inductance of a cable length of *200mm* (? *6mm* 2) is 0.17 μH.

I have experimented with loop spacing and connector cable lengths and measured inductance. 1 Loop measured at loop cable terminals 2.37 μH (according to mag loop calc. 2.45 μH) Loop spacing 500mm

Unfortunately S-Figure values of a non-calibrated receiver are not very meaningful. Better specify the voltage at 50 Ohms in dB?V or power in dBm. Some of the better SDR (e. G. Perseus, SDR-Play

Drawing of measurement points /g/loopantennas/photo/300189/3878148

I have no control over my external RF environment. It is what it is. OFCOM is helpful but things like residential PLC networks remain a PITA. I measured the inductance of my parallel loop

Hi Roland Low noise floor is to be found in a rural location. Ie I have s0 ( sometimes s1) noise on a full size 40m vertical. Where as in london it was s9 if lucky. See itu/r p.373-13 or similar..

I will try the LZ1AQ Amp next. I live in a suburban area (

Roland.. You maybe improving the loop but not able to detect it or it may even seem worse IF your amplifier is not correct for the now lower impedance of loop. This is why am suggesting use a good

The use of four connection cables of the same length (connected in parallel) has not brought any improvement https://wspr.live/gui/goto/VCYdIvONg?orgId=1 Roland

A report of the value of the low noisefloor and bandwidth for each iteration would be useful for those of us on the email thread, please. Dave - W?LEV hb9vqq.ch@groups.io> wrote: -- *Dave -

One step at a time, no need to rush. I change one thing at a time and observe the difference. Define “low noise floor” and on which band. 73 Roland

Hi Try a better amplifier, one that tracks the impedance of loop..ie in production the Lz1aq. .plenty of info on here how to make an “ improved” one. NOTE.. that is improved over the 2222 one on

RR Martin, that's exactly what I did. But the results were worse than before. I am now using 4 cables of the same length (430mm) and connected them like in the photo in the opening post (parallel).

Hi Roland, I think we misunderstood each other. I meant for the parallel loops to remain connected in parallel, and in the same phase as before, but just swap one of the amplifier connections,

Hi Roland, you can upload photos to an album in the "photos" folder and put a link that leads there. regards Fred