stayed to the end ! Great videos. I've just inherited a really nice Freelander Station wagon, last one before they ended the freelander,,,and I'm studying (via a great essex ham course) for my foundation. Love your 'getaways' and can see me doing them. How do you square your nights awa playing radio with your partner? Would love some tips !!!! Keep up the great videos,,, I'm learning loads ! Cheers now. Tim 26TM2636 South Hampshire U.K
Cheers Tim, good luck with the foundation, 10m and 11m can be a fun area to operate radio esp during the early summer. My girls are in their teens so I can now get a night away 2 or 3 times a month occasionally more. I've got locations I can get to quickly, I tend to go late in the day and then leave at dawn both through summer and winter. I run my own business so I can be flexible with doing the normal things in life and getting away for a night.
Submarines and 3 digit spy stations. Lots of static. Some teletype. Some slow cw beacons. During the winter of 96 I "pinched" the use of about 1/2mile of electric fense wire. One night I heard a low whine that sent chills up me spine. As my rig dosen't have a local oscillator. It was a MISTERY that haunts me to day. Ps the rig is a 1921 homemade loose coupler rig gifted to me 30 years ago with a Sylvania diode or a set up for Galina whisker diode. I added a guitar amp. I surmise that the whine was solar or geo magnetic. Thanks again for good show de kv4li.
@@RC-Heli835 A good question! If I remember well enough, the field was about 500m long by 400m wide. No antenna tuning, it was such a low power TX nothing could be damaged. I connected the antenna to the top wire, which literally went all the way round the field. For the ground I just knocked a long metal tent peg into the soil. I couldn't believe how well it worked! The TX output was only about 1 watt, but the signal was loud and clear for miles, just as was the case with Ray's friend. I bet an electric fence would have done even better than the barbed wire, owing to the wire being insulated at every post it was attached to. Of course, this could only work on medium or long wave, but if the same thing was done using a good antenna tuner and more power, I bet that signal would go for miles and miles and miles!
My primary HF antenna is a 160M full wave loop. I've occasionally been able to hear the 60khz timing signal (the one that all the "atomic" clocks use to update) broadcast by WWV on my Kenwood TS2000, whose receiver's low end is 30khz.
Interesting video and thanks for posting it up. I’m a SWL and have tried ground loops, ground spike dipoles etc and some work great. Especially good for LW DX since ferrite antennas get plagued by QRM these days. I’ve used steel wire fences in the countryside than run for miles as well 👍🏼
Hi Carl: This is a very interesting video. vlf receiver with a loop wire antenna, it seems that it was quire a success, and it just goes to show how mush of the radio spectrum alot of us are missing, great job, Carl, and thank you for sharing, and oh, I really enjoyed your cooking segment!
I admire your determination and going the extra mile with your experimentation (big word that one) with your antenna 's and just what you can receive with some thought and planning and never letting the weather stop or slow you down. Love your cooking tips ! 73s till the next one...
It might be fun to look up the VLF frequencies used by the military to communucate with submarines. Here in Oz we have the Harold E Holt Naval Communications Station up on the North West Cape. I think it operates on around 19kHz.
What a fantastic fun field experiement ! Really enjoy your entire videos, so a great mix of tech / radio and food ! Like wise, I enjoy listening to VLF transmissions, albeit on a wellbrook, I'd love to experiment one day with running a huge piece of wire out to see what could be heard ! Thanks again for creating and uploading these really interesting videos !!
Magnetic loops IMO are the way forward. If you are in an area where there isn't a lot of QRM, then fine, but for where I am I get good results on LF/MF from a Wellbrook. I also have an MLA30+ that I really need to try out. I have so many sources of noise! My favorite band is 60m for inter GB NVIS comms but during the weekend when my neighbour is home the noise goes to about S5 and that coupled with the various PSU's on my laptop (a real issue on 60m) and just general noise from xDSL etc. it's a losing battle. I've deliberately avoided LED lights to replace the GU10 50W halogens in the kitchen / dining area for this specific reason but given the price hikes in energy costs I've decided to put the things in but gone for a known brand and may take steps if they don't conform to EN55022 or whatever European Norm they claim to conform to. I was very active in trying to get PLT banned. It's just so f**king sad.
Should of added,,,,, I'm going to kit the landy out, and do some stealth camping and radio work. I use a kelly kettle set up for brewing up and cooking on which is fun, and have a ssb/multimode crt9900 running off a separate car battery linked to a small solar panel to keep it topped up,,coupled up to a Sirio ML145 antenna. So looking forward to passing the exam and using 10 metres on my radio,,,,and am looking at maybe a dedicated HF mobile rig. Whats your opinion on the little G90 radios??
The coil makes a difference for worse. I think that goes for almost any coil in a antenna system placed at the end indoors. The antenna itself was on the ground which is also not preferable but still a interesting experiment to do!! You could probably repeat it one day and take the loop a meter of the ground and get rid of the coil indoor.
I know that I massively late to the party, I can't see what that cable reel is made from, if it is non conductive you could have lot of inductance. If you had a few spare metres of wire you could have wrapped a few turns on top and shorted them out. Well done for going out in those conditions..
love to listen to the very low frequency 's it is always entertaining decoding all sort of thing 's nice video so i am not the only one hi hi 73s Mark bushmills ni.
I'm a fan or Mr Jelly as it happens. As for the coil. You have a license Carl so you know what a coil with an induced current does. The Buzzer on 4625 kHz is a regional sounding signal for the SW military area of Russia for the Air Force communications.
Hey Carl, I have a few friends that are using loop on the ground and they are really happy with them. I'm going to try one out too because they seem to be able to hear stations that I'm unable to hear. As for the wire try to see if you can get some surplus military communications combat field wire. That way you won't need to borrow. BTW one of the lads I talk to on 40&80 meters uses inexpensive picture frame wire. I want to thank you for this experiment especially with the weather.
Great test, Carl. If you are ever on 160m on Mon night, please try and call on or listen on 1.990. I was /p there running the net last Monday. Lots of callsigns and will even wear my The Incident t-shirt next time :)
@@keithnolan-fns Darn, you're right. That's 2 pm my time..almost high noon, sun overhead, a very poor time for even the 50 kW MW broadcasters to get much more than local range. Well maybe on 20 M or 15 sometime.
Carl - what's the iPhone app called? Sounds really useful! I have a Sangean ATS 909 - I should be able to pick something up with that! :-) 73's from Switzerland, Rob
Nice to see that the Ground antenna worked so well for you on recieve. The Nooelec Mixer is normally considered to be a bit deaf actually so that was a good result. Do you have the plain Jane Airspy you may well not even need the upconverter at that point.. O yeah interesting to see you have invested in a "tatical" Surface Pro..you can do survival videos now with your d.O.g !!lol
My simple brain is thinking use a loop of wire on the ground with low impedance, still not sure if the remaining spool of wire would act like an air coil?
Good video again mate,bet you can't wait for the summer🤣what was it like as a receive antenna on all hf bands? Was it any good or lots of noise? Stay safe n look forward to the next one 👍👍👍
If the Velocity Factor of a very long (multiple wavelengths) antenna wire is any different than the Velocity Factor (~1) of the passing radio signal in air, then at some point the passing RF and the induced current in the wire will start to go in and out of phase due to the different velocities. Thus, after a certain length, any further increase in antenna wire length will start to be counterproductive. I've not seen anyone mention this factor before, but it can't really be news to the experts. I wonder if this is related to the recommended max length of a Beverage antenna at ~1.75 wavelengths ? Anyone know ?
i run a loop at 50 feet 180 m long i work the uk fr vk on 80 on 40 and gen local on 160m the antenna does not work so good above 15m band the directional yagi beams kills the loop above 15m. a rhombic antenna will beat anything what can be made.i do run my fm stereo on my loop and its dynamite.
As a receive antenna a loop on the ground may help to improve the signal versus noise ratio, it’s lowers the reception in general but the theory is that the noise is less so that the signal can be picked out of the noise. I’m not 100% convinced
They're not biscuits. They're not cooked twice. You can see what you hear when you crunch an undunked true biscuit. And anyone who tries to dunk a jaffa needs their brain retuning.
stayed to the end ! Great videos. I've just inherited a really nice Freelander Station wagon, last one before they ended the freelander,,,and I'm studying (via a great essex ham course) for my foundation. Love your 'getaways' and can see me doing them. How do you square your nights awa playing radio with your partner? Would love some tips !!!!
Keep up the great videos,,, I'm learning loads ! Cheers now.
Tim 26TM2636 South Hampshire U.K
Cheers Tim, good luck with the foundation, 10m and 11m can be a fun area to operate radio esp during the early summer. My girls are in their teens so I can now get a night away 2 or 3 times a month occasionally more. I've got locations I can get to quickly, I tend to go late in the day and then leave at dawn both through summer and winter. I run my own business so I can be flexible with doing the normal things in life and getting away for a night.
A friend (now SK) and I put up an "above the ground" 300m loop once. On top of a mountain. It was E-P-I-C!
Submarines and 3 digit spy stations. Lots of static. Some teletype. Some slow cw beacons. During the winter of 96 I "pinched" the use of about 1/2mile of electric fense wire. One night I heard a low whine that sent chills up me spine. As my rig dosen't have a local oscillator. It was a MISTERY that haunts me to day. Ps the rig is a 1921 homemade loose coupler rig gifted to me 30 years ago with a Sylvania diode or a set up for Galina whisker diode. I added a guitar amp. I surmise that the whine was solar or geo magnetic. Thanks again for good show de kv4li.
I did this when I was 14 (in 1966), using a barbed wire fence that went all the way round a massive field. Boy oh boy, it worked, how it worked!
How many meters long was it?
@@RC-Heli835 A good question! If I remember well enough, the field was about 500m long by 400m wide. No antenna tuning, it was such a low power TX nothing could be damaged. I connected the antenna to the top wire, which literally went all the way round the field. For the ground I just knocked a long metal tent peg into the soil. I couldn't believe how well it worked! The TX output was only about 1 watt, but the signal was loud and clear for miles, just as was the case with Ray's friend. I bet an electric fence would have done even better than the barbed wire, owing to the wire being insulated at every post it was attached to. Of course, this could only work on medium or long wave, but if the same thing was done using a good antenna tuner and more power, I bet that signal would go for miles and miles and miles!
My primary HF antenna is a 160M full wave loop. I've occasionally been able to hear the 60khz timing signal (the one that all the "atomic" clocks use to update) broadcast by WWV on my Kenwood TS2000, whose receiver's low end is 30khz.
Interesting video and thanks for posting it up. I’m a SWL and have tried ground loops, ground spike dipoles etc and some work great. Especially good for LW DX since ferrite antennas get plagued by QRM these days. I’ve used steel wire fences in the countryside than run for miles as well 👍🏼
Hi Carl: This is a very interesting video. vlf receiver with a loop wire antenna, it seems that it was quire a success, and it just goes to show how mush of the radio spectrum alot of us are missing, great job, Carl, and thank you for sharing, and oh, I really enjoyed your cooking segment!
I admire your determination and going the extra mile with your experimentation (big word that one) with your antenna 's and just what you can receive with some thought and planning and never letting the weather stop or slow you down. Love your cooking tips ! 73s till the next one...
It might be fun to look up the VLF frequencies used by the military to communucate with submarines. Here in Oz we have the Harold E Holt Naval Communications Station up on the North West Cape. I think it operates on around 19kHz.
That was brilliant, thank you 👍🏻 The wife made me take down my only antenna 🤣 I need to get something else set up and make it a bit more stealthy 😁
Use blue insulated wire & throw it up when she's out of town. 🤭
Always enjoy your videos. Thanks for sharing.
What a fantastic fun field experiement ! Really enjoy your entire videos, so a great mix of tech / radio and food ! Like wise, I enjoy listening to VLF transmissions, albeit on a wellbrook, I'd love to experiment one day with running a huge piece of wire out to see what could be heard ! Thanks again for creating and uploading these really interesting videos !!
Glad you enjoyed it!
Good vid as always Carl thanks for making and posting 👍
Secret squirrels 🐿 😆
Nice video Carl 👍👏👏
Yes another secret squirrel! ssh, the first rule of the squirrel club..
Always stay till the end. Interesting video Carl as always 🤙🤙🤙
Nice one, thanks for being in the Secret club!
Magnetic loops IMO are the way forward. If you are in an area where there isn't a lot of QRM, then fine, but for where I am I get good results on LF/MF from a Wellbrook. I also have an MLA30+ that I really need to try out. I have so many sources of noise! My favorite band is 60m for inter GB NVIS comms but during the weekend when my neighbour is home the noise goes to about S5 and that coupled with the various PSU's on my laptop (a real issue on 60m) and just general noise from xDSL etc. it's a losing battle. I've deliberately avoided LED lights to replace the GU10 50W halogens in the kitchen / dining area for this specific reason but given the price hikes in energy costs I've decided to put the things in but gone for a known brand and may take steps if they don't conform to EN55022 or whatever European Norm they claim to conform to. I was very active in trying to get PLT banned.
It's just so f**king sad.
Nice technical experiment, including of course the "cook in the shack" tutorial
73 - F1SOC
Happy Christmas Carl OM! Thanks for your videos this year.
73 Nick M1DDD
Cheers buddy have a great Christmas
Should of added,,,,, I'm going to kit the landy out, and do some stealth camping and radio work. I use a kelly kettle set up for brewing up and cooking on which is fun, and have a ssb/multimode crt9900 running off a separate car battery linked to a small solar panel to keep it topped up,,coupled up to a Sirio ML145 antenna.
So looking forward to passing the exam and using 10 metres on my radio,,,,and am looking at maybe a dedicated HF mobile rig. Whats your opinion on the little G90 radios??
another great video, and a Porcupine Tree fan too! cheers GM7MTK
Aha yes absolutely, the best band most people have never heard of
I always stay til the end, Carl 😉
Interesting experiment. 👍
I bet winding the wire back up was nowhere near as much fun as winding it out, eh!
Yes winding it back in was a pain, welcome to the secret club
The coil makes a difference for worse. I think that goes for almost any coil in a antenna system placed at the end indoors. The antenna itself was on the ground which is also not preferable but still a interesting experiment to do!! You could probably repeat it one day and take the loop a meter of the ground and get rid of the coil indoor.
@DX Commander I have seen that video.
I wonder if you put the Mr.Happy loop up about 30 feet. But, it’s not a cooking channel…lol.
Thanks Carl, another great vid, hope dinner was great!
Great idea
I know that I massively late to the party, I can't see what that cable reel is made from, if it is non conductive you could have lot of inductance. If you had a few spare metres of wire you could have wrapped a few turns on top and shorted them out. Well done for going out in those conditions..
love to listen to the very low frequency 's it is always entertaining decoding all sort of thing 's nice video so i am not the only one hi hi 73s Mark bushmills ni.
I'm a fan or Mr Jelly as it happens.
As for the coil. You have a license Carl so you know what a coil with an induced current does.
The Buzzer on 4625 kHz is a regional sounding signal for the SW military area of Russia for the Air Force communications.
Nice Vid Carl ..Good Experiment👍
Isnt it the Law When out Camping
Full English is Oder of the Day 🤭
Hey Carl, I have a few friends that are using loop on the ground and they are really happy with them. I'm going to try one out too because they seem to be able to hear stations that I'm unable to hear. As for the wire try to see if you can get some surplus military communications combat field wire. That way you won't need to borrow. BTW one of the lads I talk to on 40&80 meters uses inexpensive picture frame wire. I want to thank you for this experiment especially with the weather.
Thank you
Great video Carl, try a resonant delta loop it works well lying on the ground. 73 de John G4YDM
Another great video thank you.
Great test, Carl. If you are ever on 160m on Mon night, please try and call on or listen on 1.990. I was /p there running the net last Monday. Lots of callsigns and will even wear my The Incident t-shirt next time :)
What time UTC on Monday nights? I'll give a listen, 73 de W7 land.
@@frombryant6678 Hi from Ireland, from 21:00 UTC. May be a stretch from W7 but part of the fun to try it
@@keithnolan-fns Darn, you're right. That's 2 pm my time..almost high noon, sun overhead, a very poor time for even the 50 kW MW broadcasters to get much more than local range. Well maybe on 20 M or 15 sometime.
Maybe try putting your antenna near the coil/spool and pick up the signal that way. I saw and end fed wire do that
Carl - what's the iPhone app called? Sounds really useful! I have a Sangean ATS 909 - I should be able to pick something up with that! :-) 73's from Switzerland, Rob
You need to install a wood burning stove! They are awesome.
what impedance transformer you use
I’m surprised there wasn’t an Italian contest on every frequency.
They do enjoy a contest.
🐿️ Happy Christmas. M7TRS motters 73
Is the antenna on that reel in the room, or did you actually cut the wire off the reel?
So what is your consensus on this LOG? I've been considering trying it though i don't think i could get 500 meters in my yard hi hi
I’ve tried similar at home for RX, all signals were lower and very difficult to say whether the SNR was any better in my home set up.
Nice! But you seems to have unlucky with the weather 😔 73 sm4 . . .
A nice RF Choke
An Eggcellent squirrel lurk.
Welcome to the club
Nice to see that the Ground antenna worked so well for you on recieve. The Nooelec Mixer is normally considered to be a bit deaf actually so that was a good result. Do you have the plain Jane Airspy you may well not even need the upconverter at that point.. O yeah interesting to see you have invested in a "tatical" Surface Pro..you can do survival videos now with your d.O.g !!lol
I am assuming you mean mhz does not mean millihertz? (Instead of MHz which is the SI designation for megahertz).
Great video again Carl! Where did you get the antenna transformer? 73, Stephan, DF6PA
A friend made it for me
Why wouldn’t using the wire on the spool work just as well as spreading it out?
My simple brain is thinking use a loop of wire on the ground with low impedance, still not sure if the remaining spool of wire would act like an air coil?
I'm a secret squirrel! Cheers Carl!
Fabulous, welcome to the club
Good video again mate,bet you can't wait for the summer🤣what was it like as a receive antenna on all hf bands? Was it any good or lots of noise? Stay safe n look forward to the next one 👍👍👍
I’m going to try various set ups and get a sense of what works best
Hi Carl, another thoroughly entertaining video mate. 👍 What SDR software do you use with your Airspy? Cheers VK2NAT
Thank you, SDRconsole
what guage wire ???
If the Velocity Factor of a very long (multiple wavelengths) antenna wire is any different than the Velocity Factor (~1) of the passing radio signal in air, then at some point the passing RF and the induced current in the wire will start to go in and out of phase due to the different velocities. Thus, after a certain length, any further increase in antenna wire length will start to be counterproductive. I've not seen anyone mention this factor before, but it can't really be news to the experts. I wonder if this is related to the recommended max length of a Beverage antenna at ~1.75 wavelengths ? Anyone know ?
i am a secret squirrel, and always stop to the end, just to see if the weather improves
welcome to the club
i run a loop at 50 feet 180 m long i work the uk fr vk on 80 on 40 and gen local on 160m the antenna does not work so good above 15m band the directional yagi beams kills the loop above 15m. a rhombic antenna will beat anything what can be made.i do run my fm stereo on my loop and its dynamite.
all that heavy fog, and he was DRIVING on the WRONG side of the Road!! crazy!!!
Shame you didn't get a nice drone shot of the aerial
Yeah I've got a drone but the quality is not good enough, might be a good investment next year
Like my LoG 👍🏻 🐿 🤫
Wire would be better above the ground, no?
As a receive antenna a loop on the ground may help to improve the signal versus noise ratio, it’s lowers the reception in general but the theory is that the noise is less so that the signal can be picked out of the noise. I’m not 100% convinced
Carl, if it is a receive only antenna you don't need the matching unit. Those are only needed for transmitting.
matching a receive antenna can still help.
roger woodland We must be using different sources of information. Do you have a book title that I can reference. I'm always learning new stuff.
is that typical british weather?
it is for autumn/winter in the peak district
Carl cakes it says it on the box lol😄
Ps. Even stayed till the very end..
Porcupine Tree.....73 n tks de CT7/ZR1XZ
Hook the wire to a drone and see how it works in the sky.
phew....
They're not biscuits. They're not cooked twice.
You can see what you hear when you crunch an undunked true biscuit.
And anyone who tries to dunk a jaffa needs their brain retuning.
Ha brilliant