@@johnhess351 Never seen that done? Might work…. but if it needs too much squashing might effect the directional characteristics? I guess might be worth a play…
@@johnhess351 Never seen that done? Might work…. but if it needs too much squashing might effect the directional characteristics? I guess might be worth a play…
I have read and watched that if you tie in on the North/South corner the antenna tends to be directional to some degree to the East and West , if tie in is on East/West corner then directional North and South. I am playing with one with 12ft sides (48ft long) tie in is on East corner and it receives mainly N/S on 40meter band only. No coax, no core, just 70ft length 24gauge wire formed into a 48ft loop (12ft sides) with loop not connected at very end other end. Other end is connected to SDRPlay1A. I will do the coax/ core thing when parts arrive, I enjoyed the video. Thank You......
Thanks! Yes the directional info as far a I know is correct. Thanks for the comment and let me know how it performs when it is completed. I’m presently toying with an active small receive loop that will also incorporate the LOG antenna. Also just got a Hermes LITE II … fun fun fun!!! 73 de VK2AOE
I worked DX for many years, favoring nighttime 40M, but the noise floor always terrible. Now just starting to listen again after decades on my PC with a sensitive dongle (who knew?). Right now, just need a good low noise RX antenna given the usual home association "can't be visible" BS rules. 60 feet of wire, an impedance transformer, on the ground, performs like this on 40M? I've seen a couple vids now showing this, got to say 'stunned'. Thanks!
Yes…. It works well. Presently I’m playing with a Hermes Lite II SDR transceiver… the digital signal processing is impressive as is the noise reduction. So the battle with QRN has not been lost! It continues on…. 73 de VK2AOE
Yes....the lower coupling of signal energy due to an impedance mismatch (equating to a 💩SWR) is of little concern on receive, as a result of the attenuation effecting both the noise and the signal present. So, receive antennas are very forgiving things! 73 and thanks for the comment.
What about a loop off the ground and put on poles 7 metre Poles , 4 of the best in a square. cheers mate vk4oc, full size LOOP for 80 metres antenna at this QTH.
9.1 unun balun has good balance, 450 OHMS does the TX RX. TU George for your video Fantastic work for OM. Cheers 73 de Dennis vk4oc/@@TheArtofEngineering
Just purchased a QCX + kit from QRP Labs for 160m. Going to switch out my UNUN on the EFHW to make it a 1/4 wave at 160m .....and hopefully find out? Having fun! Also I'm in the process of building a crazy receive only loop. 73 de VK2 AOE
Was wondering if you can use a much larger gauge wire and improve reception? Thank you for the video.
@@johnlew5972 my thoughts (not based on certitude) are that it would make little difference. But if you try let me know? 73
@@TheArtofEngineering Im hearing it would increase bandwidth like usual. So im thinking that would increase the noise too.
Thankyou for the response.
Definitely worth keeping it, so much less noise. Much better than I thought.🍻🤠
Yes it seems ok Don.....I have bits ordered for something even more rad!73
WHy not change the shape of the loop on ground to a bit of a squashed loop to reach desired impedance instead of using transformer?
@@johnhess351 Never seen that done? Might work…. but if it needs too much squashing might effect the directional characteristics? I guess might be worth a play…
@@johnhess351 Never seen that done? Might work…. but if it needs too much squashing might effect the directional characteristics? I guess might be worth a play…
Thanks!
Dear Peter...Thankyou! Glad you enjoyed the video. Hope the new year brings you heaps of HAM fun. 73 de VK2AOE.
I have read and watched that if you tie in on the North/South corner the antenna tends to be directional to some degree to the East and West , if tie in is on East/West corner then directional North and South. I am playing with one with 12ft sides (48ft long) tie in is on East corner and it receives mainly N/S on 40meter band only. No coax, no core, just 70ft length 24gauge wire formed into a 48ft loop (12ft sides) with loop not connected at very end other end. Other end is connected to SDRPlay1A. I will do the coax/ core thing when parts arrive, I enjoyed the video. Thank You......
Thanks! Yes the directional info as far a I know is correct. Thanks for the comment and let me know how it performs when it is completed. I’m presently toying with an active small receive loop that will also incorporate the LOG antenna. Also just got a Hermes LITE II … fun fun fun!!! 73 de VK2AOE
I worked DX for many years, favoring nighttime 40M, but the noise floor always terrible. Now just starting to listen again after decades on my PC with a sensitive dongle (who knew?). Right now, just need a good low noise RX antenna given the usual home association "can't be visible" BS rules. 60 feet of wire, an impedance transformer, on the ground, performs like this on 40M? I've seen a couple vids now showing this, got to say 'stunned'. Thanks!
Yes…. It works well. Presently I’m playing with a Hermes Lite II SDR transceiver… the digital signal processing is impressive as is the noise reduction. So the battle with QRN has not been lost! It continues on…. 73 de VK2AOE
TIL SWR matters for receive only antennas
Yes....the lower coupling of signal energy due to an impedance mismatch (equating to a 💩SWR) is of little concern on receive, as a result of the attenuation effecting both the noise and the signal present. So, receive antennas are very forgiving things! 73 and thanks for the comment.
What about a loop off the ground and put on poles 7 metre Poles , 4 of the best in a square. cheers mate vk4oc, full size LOOP for 80 metres antenna at this QTH.
Envious….would love to have so much space. What balun do you need for that loop? Does it perform well? 74 de VK2AOE George
9.1 unun balun has good balance, 450 OHMS does the TX RX. TU George for your video Fantastic work for OM. Cheers 73 de Dennis vk4oc/@@TheArtofEngineering
Don’t you have a bilingual tape measure ?? One that does freedom measurements as well as science measurements
As you approach your winter, it will be interesting to see how the LoG works on 160 and 80m...
VE3IIM/VE6PG
Just purchased a QCX + kit from QRP Labs for 160m. Going to switch out my UNUN on the EFHW to make it a 1/4 wave at 160m .....and hopefully find out?
Having fun! Also I'm in the process of building a crazy receive only loop. 73 de VK2 AOE