A few days ago, this video came back to my mind, since I needed to trace down the source of a very annoying noise in my neighbourhood, which was jamming the whole RF spectrum all the way from 150 to 3000KHz. All I did was to walk up and down the street with a portable AM radio, but it took me some time to find a good null point, since the noise was really strong. In the end, the source was inside a newly-established mechanical shop, a few houses apart from mine. After talking with the owner, I found out the culprit was a compressor motor, which he agreed to fix after I proved him he was against the law for producing so much electromagnetic pollution! By the way, this video (and all the others) are amazing. This is what gives me joy for being into a cool hobby as this!
It is scary how folks back in the 40's had this kind of equipment. Being a spy and having the thrill of Germans possessing a precise device to find you out; must have been "fun". Excellent video, sir!
Yes, and then many of the radio agents were unaware of this radio directio finder capacity of the Germans. They didn't learn much about this in radio training in England. I will cover this in another video later.
@@LA6NCA The Red Orchestra comes to mind. That spy network was uprooted because of precise nazi direction finding. Many people have died because of these tecniques 😥
@@LA6NCA Really? Seems unlikely. Radio direction findig was in extensive use in aviation and they did not understand that the same equipment would put radio agents at risk?
My dad used to be amateur radio operator and with his help I gave a friday afternoon presentation long ago in elementary school on this very subject. Most presentations were about cats, dogs and pet fish. You can imagine the surprise and excitement received when the presentation was about secret spy networks and triangulation such as in your video! My dad though me the exact same drawing techniques for triangulation. Thanks Helge, great video!
Fascinating video! Your knowledge and hard work to first find and collect all this rare equipment is amazing. I repair guitar amplifiers built from the fifties to the eighties so I have a small idea of how much work it must be just to get this gear working and calibrated. Bravo! I read a lot of military history from WW2 and always wondered exactly how D/F equipment worked and was used. Very grateful to you for an excellent lesson!
Absolut fantastisches Video. Diese alte Technik in Aktion zu sehen und dann noch erklärt zu bekommen. Einfach toll. Macht bitte weiter so und viel Spaß. Liebe Grüße aus Leipzig/ Deutschland 73 de Marco, DO7NE
I'm downright jealous of this video! Big praise that the device is actually used in the field, not just displayed in collection shelf. The video concretizes wery well how the device works and how it was operated. BTW I'm happy that the operator of the agent radio got away before the raid, I don't dare to think what would have happened to him if he was caught.
Hello Helge, this is a great video. Very impressive that the equipment is still working after all these years. It was a nice surprise to find you here on TH-cam now in 2024. I was your neighbour in Dyrgravveien in Kongsberg in the 1980'ies. You drove a 1/4 ton (?) military truck back then. Regards from Kenneth.
Thank you for your comment. Nice to hear from Dyrgravveien. And that you remember the military car. Been making videos here for a few years now. Got over 110 now. The first ones are probably a bit amateurish, but that's just the way it is.
Fin intressant video! Tack för den. För mig väcker det många minnen av de "rävjakter" jag deltog i som ung. Det blev många krysspejlingar, utom när man själv låg räv.
Absolutely wonderful video! the realistic feel, accuracy of deployment, knowledge of the equipment, etc...... it is just a trip in time for sure. Thanks for all the fantastic and professional videos that you have done, and are still doing! As I was watching, I was finding myself in the early 1940's after Germans had occupied Norway. Thanks so much!!! Keep history alive! 73
Thanks for a brilliant video. I spent many years in the (S) branch of the navy and appreciate the effort you have put into collecting and maintaining the equipment as well as demonstrating its use. The RN version of this set for HF was the FH4. For MF it was the FM12. This had a "goniometer" to detect the true bearing from its reciprocal. We had a little verse, "Turning clockwise, signal rise - ship on other bearing lies. Turning clockwise signal falls - you've got the bas..rd by the b.lls. Cheers 73 VK5WB
No, the agents were kept unaware of this. I have spoken to a radio agent who operated from Norway during the war. I demonstrated this radio direction finder to him. He later told this in the association for agents. They were completely stunned when they learned this. These were agents with training from England. Did the English not have this knowledge?, or was it on purpose that they did not tell the agents about it.
@@LA6NCA most interesting. I have visited and read some of the history of the Shetland bus. I was on board as a visitor some of the craft used to land the agents . That was when the refurbished Scalloway museum was visited by the Prime Minister of Norway. Very brave people crossing the North Sea in mid winter aboard such small and vulnerable boats.
Over the years I had many different WWII radios from aircraft, jeeps, and even a tank. But I would sell it off for other equipment, not knowing how rare it would become in the future! Nice to see so much saved and in use still!
I was an Electronic Warfare Officer flying reconnaisance missions in the analog days. The navigator logged the exact route we flew. I operated a radar receiver fed by a rotating dish. The signal of interest was fed into equipment which showed pulse width, pulse recurrence frequency and other data from which maintenance status of the transmitter could be determined. A direction finding (df) bearing would be logged with the time. At least three df bearings would be taken. After landing a mission debriefing was held and the crew activity reports provided which also included other operators data. The ground analyst would take the data and plot all the provided info which showed location and the "fingerprint" of that system. If it was moved to another location, it could be identified where it had been positioned. It was time consuming but it was the best info available at the time. We are now in digital times and signals hit an antenna in an airplane, ship or satelite, prosessed through computers and relayed direct to intel processors. The navigator has been replaced by a GPS compterized system and so have I. KE5UPM
Very interesting indeed, thank you for sharing. Amazing that the equipment works so well after 75+ years, chilling to see the paint wear on the DF circular handle showing lots of WW2 use.
that is why a properly trained agent would send signal very short time, burst and change frequencies often to minimize detection, then when done change loaction/hide Transmitter, Antenna....
@@LA6NCA Yes you are correct. Over time the German radio intelligence would build up a picture of spy activity to increase the chances of capture. A real cat and mouse situation.
Thank you so much for sharing this! As a WWII history buff, I've always been fascinated by this type of tracking technology. It's impressive that you're such a great collector, preserving these engineering gems. Thanks for giving us a glimpse into how these tools were used! Super cool!
Another very interesting presentation by Helge again. Enjoying the entire process of WW2 DF for the first time. I used to be a radio operator in my military service and was not told about DF at all. Very surprised at the results.
Thank you Mr. Fykse for this awesome demonstration. It is the things we interested, see in back grounds, in show cases and glass boxen these days. But a full demonstration of it in functioning is awesome to see and hold. So admirable and can't wait to see more of your content. Good luck, from the Netherlands.
What a great video! I do like it when you include the technical breakdown of the radios with the diagrams of the circuits in use. Please keep making these videos. I cannot wait to see a video on the KlFuSpr.d “Dorette”.
Thanks for the nice comment. I will make a video about KlFuSpr.d "Dorette". I can then also show the technical aspects inside the radio. Nice to get such feedback. LA6NCA
Thank you for your comment. Yes, it takes a lot of work and experience to work with these old things. Power is one thing. They must be able to supply many different voltages.
That set looks almost exactly like the AN/TRD-1 we used in Korea until the late 1970s. It was replaced by later 1940's tube equipment, the TRQ-23. For manpack missions we got some other gear in the 80s, the TRQ-30. "Flash"operations to call out targets was done very very quickly.
Over a period of about 25 years, I worked long range (several thousand miles), medium range (out to 3000 miles), short range (under 3000 miles) and mobile direction finding. Long range DF could locate a target within a 10 nautical mile radius, medium range (I forget maximum radius) down to a 1500 meter radius, and short range, down to a 50 meter radius. Even with short range DF, it was usually necessary to use mobile DF equipment (vehicle mounted) to locate a transmitter antenna if it was not easily visible. Sometimes it was necessary to use hand held DF equipment to locate hidden antennas.
I have a lot of respect for Norway in WW2 And WW2 family links to both Norway and SOE ( Special Operations Executive ). / My father was a junior officer on HM Submarine Torbay, which carried out one patrol off northern Norway to shield an Artic convoy from German surface attack. Torbay also landed various types of agents and special forces in the Mediterranean and in Malaya. / My mother never said a single word about her war, but after her death, something prompted me to start asking questions. I found a clear link to French Section of SOE, explaining her intimate knowledge of the Beaulieu area in southern England, used as their training area, and for sending agents by air to France. / So I really appreciate your video, Helge. It is one thing to read of RDF in books, but quite another to see it in action, and using the original kit. I watch some of ww2historyhunter's videos, where he explores the many German bunkers. I could imagine radio kit such as yours in a museum in such a bunker. /
As we now know, some sections of the Special Operations Executive were severely compromised, often through incompetence and some possibly by British traitors at the highest level.
Thank you Helge, for preservation of how the technology of WW2 was used by Techniques of the German Signal Corps to locate British or Norwegian Spies. I can only hope you continue to post your amazing Historical Techniques used to fight against the opponent who wanted world dominated. 73's from all of us Lone Star State Hams and Veterans. #BravoZulu 🎖️
@@LA6NCA Believe me, the pleasure was all mine. When my wife of 54 years awakened, we watched it together, truly amazing details and recreation. You Sir, are are a true "Signal Man" ‼️🌟
RYRYR printer reversals… R Y have complimentary bit values in the BAUDOT code so if you receive a series of R and Ys you know that each bit of the teleprinter is working correctly.
Amazing video and amazing to see this old equipment working. I look forward to watching more. I absolutely love the old radio stuff and this made my day. Great shack and working equipment/typesetter. Cheers! I wish I could spend a min in your shack just to enjoy your treasures and see them at work!
@@LA6NCA I am new to the hobby, I see that you build great transmitters. Is it possible to have you put a video out for a 40m 7Mhz simple single or dual tube (50's) radio build using todays devices, no arduino/chipsets? Thanks!
Once I read a book "Kio ku mitsu" by Yu. Korolkov about work of soviet agent Richard Sorge in Japan during WW2 and those radiowars were described there, but I never knew, how exactly it worked. It was interesting to watch your video. I think YT recommended this video because of my little hobby of studying Morse code the last few weeks. Thank you for video! Radio is a great invention of mankind.
Man you have a great collection of wartime gear. Bless the Norwegian Resistance members for their bravery in WW2. Love the accuracy of that loop antenna system.
What a fabulous video. Even though as a UK radio amateur I have known of this DF technique for maybe 50yrs, I've never seen it demonstrated, and in such a well explained way too. Thank you. Have subscribed after seeing this excellent video. Regards Mark in the UK
Love the old radio gear! Would be great to use in Fox Hunting as we call it today. Thank you so much for the video. I recall when my Dad had Teletype equipment.
Really enjoyed the demonstration.. Great job all around. I would like to have a DF box like yours to locate a jammer on 80m also. Thank you & good luck from Calif.
Another fantastic video. It shows just how terrifyingly accurate these devices were. Plus the technology was made as simple as possible to use, so that many people could be trained in it's use. Great work Helge, 73 de DC4DC ... -.-
I used equipment like that in Vietnam for finding locations of the enemy communication transmitter. Had to get close to get a accurate fix. Got hairy at times.
This is so geeky - and I LOVE it!! ✌I did have a fairly good idea of how transmitters were located via triangulation but never exactly how it was performed IRL. Thanks for showing the procedure of utilizing such a unique and fascinating (in its time also highly feared) device of Nazi equipment. Considering how - understandably - HATED any Third Reich objects were in postwar Norway it's a miracle this device has managed to survive at all. Great and informative vid! 👍
Norway used a lot of Ex-German equimpent after the war. In addition to radios and other high tech equipment, we used German weapons, vehicles, buildings etc. The Germans built roads, railways, airports, power plants etc. that are still in use today.
@@Redflacket I'm very well aware of that. Grampa spent his entire career in Kystartilleriet - a branch that was heavily based on WW2 German armament even up to its termination. He'd hide away multiple WW2 German 'fun to have' relics and tools that were otherwise destined to be tossed into the sea. I had my own short career in Hæren and I'm personally involved in a non-profit organization that restores and shows Norwegian ex-Army vehicles
I remember watching he movie 'The Heroes from Telemark' and wondering how true the movie-science was. I guess without having Kirk Douglas skiing past this is as good as I will know. Thanks.
Hjertelig takk for din glimrende video med tidsaktuelle utstyr på begge sider. I am very impressed to see actual WW2 equipment as used on both sides. We do not see the use of the direction finder in roving detector vans and the "spy" breaks every rule in the spy manual. Leaving a carrier on and exposing a yagi antenna...puh-lease (: . This video, possibly dubbed to English, makes a fine introduction to the movie "A Call to Spy" (2019) where inexperienced amateur spies do make these mistakes in Vichy France 1940.
So the Abwehr are still active in Norway 😁 An excellent demonstration Helge and amazing accuracy too. It is far better than any modern TDOA systems I have seen/used.
Thanks for your video. It was very interesting to watch. I have been reading a lot of WWII history the last few years, particularly anything radio related. This was fun to watch because it brought to life what was actually happening during this period. I look forward to watching more of your videos. 73, N7DN
Good result from the German point-of view, the "agent" was caught red handed. There were 3 main DF stations in Brest, Nuremberg and one other German city. When a signal of no German knowledge was encountered, the 3 DF stations were rung up "Achtung die Frequenz 3600 kilohertz" was told, and the 3 stations made the first DF-ing. Later more local stations "homed in" on the agent, the last stage could be the "Gürtelpeilgerät" which was carried under the jacket of the DF officer
That's really neat, I love that you received your orders by teletype. My friends and I used to drive around town and track each other with our Citizen Band radios.
Very nice video! You are doing wonderful work to keep old technology alive into the future! I have used antennas that are euphemistically called “elephant cage”. I was surprised with the accuracy of a small, portable radio in your video example!
Amazing video! I knew this kind of equipment existed, but it's way different to see it in action. Footage like this will be a great help to future historians (amateur and pro) and to writers of historical fiction like myself. Paljon kiitoksia Suomesta! Many thanks from Finland!
Thank you for the fantastic video, I very much enjoyed it. Frightening how quickly a trained operator would find the coordinates and agents, I believe it could be done in 3 minutes, G4FAD.
Väldigt kul att se hur det gick till och vilken noggrannhet som Tyskarna kunde få till. Jag har hört om ett kommunikationssystem som heter ”Lichtsprescher” Här kunde Tyska grupper prata med varandra på flera kilometers avstånd, bara det var fri sikt. Skulle vara skoj om du har en sådan anläggning att visa och demonstrera. Rolig och lärorik videt!👍
Thank you for your comment. I have made several videos about "Lichtsprescher". It is very efficient. One can transmit secret information without being intercepted. th-cam.com/video/KS_t8DR9r7E/w-d-xo.html th-cam.com/video/Qq_sEJGaTwo/w-d-xo.html And here is one of my first TH-cam videos from 15 years ago. th-cam.com/video/vR4N6MTx_vw/w-d-xo.html
How does the antenna work? It's not really a loop antenna with many turns. Seems to be wire wound with large spacing on fiberglass rods. And even more confusing it has a vertical antenna on top. Also has a sharp 1deg null at one position! My guess the vertical picks up the e field and creates a current flow in the one loop branche. It's balanced when both the m fields of the source and branches are canceled. Note using Lenz law on loops the thumb points to the signal. Also I think one coil is connected to the antenna and the perpendicular coil goes to the receiver.
Thanks for the comment. The loop is only a winding. It is copper pipe. The receiver has a balanced input. Then a sharp bandpass filter and an amplifier. The vertical antenna can be phased in to the signal from the loop. With the right phase there, you get a very deep zero signal. The direction of the enemy radio can then be determined very precisely. I will post electrical schematics on my internet site later.
That swan looked like at about 88 degree and quickly relocated when you went to report.... The swan is clearly transmitting.
Indeed. It was the swan all along.
Excelent work agent!
A few days ago, this video came back to my mind, since I needed to trace down the source of a very annoying noise in my neighbourhood, which was jamming the whole RF spectrum all the way from 150 to 3000KHz. All I did was to walk up and down the street with a portable AM radio, but it took me some time to find a good null point, since the noise was really strong. In the end, the source was inside a newly-established mechanical shop, a few houses apart from mine. After talking with the owner, I found out the culprit was a compressor motor, which he agreed to fix after I proved him he was against the law for producing so much electromagnetic pollution!
By the way, this video (and all the others) are amazing. This is what gives me joy for being into a cool hobby as this!
accuracy under a degree all these years later is amazing
this is historically fantastic that somebody knows how this was done and has the equipment
It's still used today, just with modern equipment
Great video, thanks for taking the time!
It is scary how folks back in the 40's had this kind of equipment. Being a spy and having the thrill of Germans possessing a precise device to find you out; must have been "fun". Excellent video, sir!
Yes, and then many of the radio agents were unaware of this radio directio finder capacity of the Germans. They didn't learn much about this in radio training in England. I will cover this in another video later.
@@LA6NCA The Red Orchestra comes to mind. That spy network was uprooted because of precise nazi direction finding. Many people have died because of these tecniques 😥
@@LA6NCA Really? Seems unlikely. Radio direction findig was in extensive use in aviation and they did not understand that the same equipment would put radio agents at risk?
Never would have expected that high level of accuracy on a WW2 system. Very nice video!
My dad used to be amateur radio operator and with his help I gave a friday afternoon presentation long ago in elementary school on this very subject. Most presentations were about cats, dogs and pet fish. You can imagine the surprise and excitement received when the presentation was about secret spy networks and triangulation such as in your video! My dad though me the exact same drawing techniques for triangulation. Thanks Helge, great video!
Fascinating video! Your knowledge and hard work to first find and collect all this rare equipment is amazing. I repair guitar amplifiers built from the fifties to the eighties so I have a small idea of how much work it must be just to get this gear working and calibrated. Bravo! I read a lot of military history from WW2 and always wondered exactly how D/F equipment worked and was used. Very grateful to you for an excellent lesson!
Absolut fantastisches Video. Diese alte Technik in Aktion zu sehen und dann noch erklärt zu bekommen. Einfach toll. Macht bitte weiter so und viel Spaß.
Liebe Grüße aus Leipzig/ Deutschland
73 de Marco, DO7NE
I'm downright jealous of this video! Big praise that the device is actually used in the field, not just displayed in collection shelf. The video concretizes wery well how the device works and how it was operated.
BTW I'm happy that the operator of the agent radio got away before the raid, I don't dare to think what would have happened to him if he was caught.
Hello Helge, this is a great video. Very impressive that the equipment is still working after all these years. It was a nice surprise to find you here on TH-cam now in 2024. I was your neighbour in Dyrgravveien in Kongsberg in the 1980'ies. You drove a 1/4 ton (?) military truck back then. Regards from Kenneth.
Thank you for your comment.
Nice to hear from Dyrgravveien.
And that you remember the military car.
Been making videos here for a few years now.
Got over 110 now.
The first ones are probably a bit amateurish, but that's just the way it is.
Fin intressant video! Tack för den. För mig väcker det många minnen av de "rävjakter" jag deltog i som ung. Det blev många krysspejlingar, utom när man själv låg räv.
Very interesting. It's great seeing all that WW2 radio equipment in use. However the antenna above the house was a TV antenna.
Absolutely wonderful video! the realistic feel, accuracy of deployment, knowledge of the equipment, etc...... it is just a trip in time for sure. Thanks for all the fantastic and professional videos that you have done, and are still doing! As I was watching, I was finding myself in the early 1940's after Germans had occupied Norway. Thanks so much!!! Keep history alive! 73
Thank you for the excellent comment.
It's fun making videos with comments like this.
An amazing collection of functional period equipment and an excellent demonstration of use. Thanks for sharing!!
Thanks for a brilliant video. I spent many years in the (S) branch of the navy and appreciate the effort you have put into collecting and maintaining the equipment as well as demonstrating its use. The RN version of this set for HF was the FH4. For MF it was the FM12. This had a "goniometer" to detect the true bearing from its reciprocal. We had a little verse, "Turning clockwise, signal rise - ship on other bearing lies. Turning clockwise signal falls - you've got the bas..rd by the b.lls. Cheers 73 VK5WB
Super accuracy, I wonder if the agents were aware of how good this gear is? Well demonstrated.
No, the agents were kept unaware of this.
I have spoken to a radio agent who operated from Norway during the war. I demonstrated this radio direction finder to him. He later told this in the association for agents. They were completely stunned when they learned this.
These were agents with training from England.
Did the English not have this knowledge?, or was it on purpose that they did not tell the agents about it.
@@LA6NCA most interesting. I have visited and read some of the history of the Shetland bus. I was on board as a visitor some of the craft used to land the agents . That was when the refurbished Scalloway museum was visited by the Prime Minister of Norway. Very brave people crossing the North Sea in mid winter aboard such small and vulnerable boats.
That was a fascinating demonstration, the accuracy was impressive to say the least.
Over the years I had many different WWII radios from aircraft, jeeps, and even a tank.
But I would sell it off for other equipment, not knowing how rare it would become in the future!
Nice to see so much saved and in use still!
I was an Electronic Warfare Officer flying reconnaisance missions in the analog days. The navigator logged the exact route we flew. I operated a radar receiver fed by a rotating dish. The signal of interest was fed into equipment which showed pulse width, pulse recurrence frequency and other data from which maintenance status of the transmitter could be determined. A direction finding (df) bearing would be logged with the time. At least three df bearings would be taken. After landing a mission debriefing was held and the crew activity reports provided which also included other operators data. The ground analyst would take the data and plot all the provided info which showed location and the "fingerprint" of that system. If it was moved to another location, it could be identified where it had been positioned. It was time consuming but it was the best info available at the time. We are now in digital times and signals hit an antenna in an airplane, ship or satelite, prosessed through computers and relayed direct to intel processors. The navigator has been replaced by a GPS compterized system and so have I. KE5UPM
Very interesting indeed, thank you for sharing. Amazing that the equipment works so well after 75+ years, chilling to see the paint wear on the DF circular handle showing lots of WW2 use.
that is why a properly trained agent would send signal very short time, burst and change frequencies often to minimize detection, then when done change loaction/hide Transmitter, Antenna....
You are right. Therefore, it often had several of these at the same time. Therefore, they were ready when the agent sent his message.
@@LA6NCA Yes you are correct. Over time the German radio intelligence would build up a picture of spy activity to increase the chances of capture. A real cat and mouse situation.
Thanks for sharing your piece of history and taking us along with you
Thank you so much for sharing this! As a WWII history buff, I've always been fascinated by this type of tracking technology. It's impressive that you're such a great collector, preserving these engineering gems. Thanks for giving us a glimpse into how these tools were used! Super cool!
That's some really gorgeous equipment
Another very interesting presentation by Helge again. Enjoying the entire process of WW2 DF for the first time. I used to be a radio operator in my military service and was not told about DF at all. Very surprised at the results.
That's what I pay my internet for, high quality content
Thank you Mr. Fykse for this awesome demonstration. It is the things we interested, see in back grounds, in show cases and glass boxen these days. But a full demonstration of it in functioning is awesome to see and hold. So admirable and can't wait to see more of your content. Good luck, from the Netherlands.
Thanks for the nice comment.
I will make more videos about this later.
What a great video! I do like it when you include the technical breakdown of the radios with the diagrams of the circuits in use. Please keep making these videos. I cannot wait to see a video on the KlFuSpr.d “Dorette”.
Thanks for the nice comment.
I will make a video about KlFuSpr.d "Dorette".
I can then also show the technical aspects inside the radio.
Nice to get such feedback.
LA6NCA
@@LA6NCA Thank you so much! And thank you for the time and effort you take to educate everyone on all these technologies.
great equipment awesome to see in this condition and that you know how to work and maintain it keep it up!
Thank you for your comment.
Yes, it takes a lot of work and experience to work with these old things. Power is one thing. They must be able to supply many different voltages.
That set looks almost exactly like the AN/TRD-1 we used in Korea until the late 1970s. It was replaced by later 1940's tube equipment, the TRQ-23. For manpack missions we got some other gear in the 80s, the TRQ-30. "Flash"operations to call out targets was done very very quickly.
Fscinating, both for the reenactment and the amound of original historical equipement you have, that's truly a great work keeping it running so good
Wow! This is amazing, it's one thing to see the equipment used, quite another to see it actually in working order.
Over a period of about 25 years, I worked long range (several thousand miles), medium range (out to 3000 miles), short range (under 3000 miles) and mobile direction finding.
Long range DF could locate a target within a 10 nautical mile radius, medium range (I forget maximum radius) down to a 1500 meter radius, and short range, down to a 50 meter radius. Even with short range DF, it was usually necessary to use mobile DF equipment (vehicle mounted) to locate a transmitter antenna if it was not easily visible. Sometimes it was necessary to use hand held DF equipment to locate hidden antennas.
Thanks for the interesting post.
I have a lot of respect for Norway in WW2
And WW2 family links
to both Norway and SOE ( Special Operations Executive ).
/
My father was a junior officer on HM Submarine Torbay,
which carried out one patrol off northern Norway
to shield an Artic convoy from German surface attack.
Torbay also landed various types of agents and special forces
in the Mediterranean and in Malaya.
/
My mother never said a single word about her war,
but after her death,
something prompted me to start asking questions.
I found a clear link to French Section of SOE,
explaining her intimate knowledge of the Beaulieu area
in southern England,
used as their training area,
and for sending agents by air to France.
/
So I really appreciate your video, Helge.
It is one thing to read of RDF in books,
but quite another to see it in action,
and using the original kit.
I watch some of ww2historyhunter's videos,
where he explores the many German bunkers.
I could imagine radio kit such as yours
in a museum
in such a bunker.
/
Very nice history.
As we now know, some sections of the Special Operations Executive were severely compromised, often through incompetence and some possibly by British traitors at the highest level.
Thank you Helge, for preservation of how the technology of WW2 was used by Techniques of the German Signal Corps to locate British or Norwegian Spies. I can only hope you continue to post your amazing Historical Techniques used to fight against the opponent who wanted world dominated. 73's from all of us Lone Star State Hams and Veterans. #BravoZulu 🎖️
Thanks for the nice comment.
@@LA6NCA Believe me, the pleasure was all mine. When my wife of 54 years awakened, we watched it together, truly amazing details and recreation. You Sir, are are a true "Signal Man" ‼️🌟
RYRYR printer reversals… R Y have complimentary bit values in the BAUDOT code so if you receive a series of R and Ys you know that each bit of the teleprinter is working correctly.
It is a rare piece of kit. Thank you for the excellent presentation 👍
a very cool piece of technology
Amazing video and amazing to see this old equipment working. I look forward to watching more. I absolutely love the old radio stuff and this made my day. Great shack and working equipment/typesetter. Cheers! I wish I could spend a min in your shack just to enjoy your treasures and see them at work!
Thanks for all your nice comments on my videos.
@@LA6NCA I am new to the hobby, I see that you build great transmitters. Is it possible to have you put a video out for a 40m 7Mhz simple single or dual tube (50's) radio build using todays devices, no arduino/chipsets? Thanks!
This is soo cool to see these old machines in use!
Thank you for preserving radios, methods, and the history! GB ES 73 W3IHM
That was similar to the rdf unit I used in Vietnam to find the Vietcong transmitter.
Thanks, it was interesting to read.
Helge Fykse good presentation. I've known how this was done, but actually seeing the process was very informative. Thank You.
Amazing equipment and a really fascinating video.
Vielen Dank für diese großartige, detaillierte Information und die viele Mühe, die Sie für uns aufgebracht haben. Das war sehr interessant!
Once I read a book "Kio ku mitsu" by Yu. Korolkov about work of soviet agent Richard Sorge in Japan during WW2 and those radiowars were described there, but I never knew, how exactly it worked. It was interesting to watch your video. I think YT recommended this video because of my little hobby of studying Morse code the last few weeks. Thank you for video! Radio is a great invention of mankind.
Thank you for your comment :-)
Fantastisk demonstrasjon et privilegium å se på. Takk skal du ha.
beautiful to see such old equipment in use and somebody who is passionate about his hobby.
Cool Video and greets from Germany.
Man you have a great collection of wartime gear. Bless the Norwegian Resistance members for their bravery in WW2. Love the accuracy of that loop antenna system.
Fascinating. This is incredibly important historical documentary. Thank you sir!
What a fabulous video.
Even though as a UK radio amateur I have known of this DF technique for maybe 50yrs, I've never seen it demonstrated, and in such a well explained way too. Thank you.
Have subscribed after seeing this excellent video.
Regards Mark in the UK
Thank you. :-)
Thank you, that was an excellent demonstration of WWII technology. Surprisingly accurate also.
The agent itself can be spoted on the background 5:40 - 7:55, adjusting his counter-finding equipment
Very intresting equipment,and deadly in right hands. Thank you for posting this.
This is the fourth time I have watched you put this amazing restoration to work. Great presentation. Replicating this unit would make a great project.
52m is 1 degrees?
the result was maybe 8metres or 12 metres or 5 metres. so amybe 0.2 to 0.1 degrees.
thats insane how fast they developed all that
Прекрасное видео! Великолепная коллекция старинной аппаратуры. Хорошо, что в наше время есть такие увлечённые люди. Привет из России!
This channel is cool! Thank you from the USA!
Love the old radio gear! Would be great to use in Fox Hunting as we call it today. Thank you so much for the video.
I recall when my Dad had Teletype equipment.
Fascinating! Thank you for the demonstration.
that was pretty amazing sir, thanks you very much! You have quite an astonishing collection of gadgets and contraptions.
Beautiful peices of equipment.
best thing I've seen on TH-cam in a long time, thank you!
Really enjoyed the demonstration.. Great job all around. I would like to have a DF box like yours to locate a jammer on 80m also. Thank you & good luck from Calif.
I have designed and built my own radio direction finder. I might make a video about it later.
Another fantastic video. It shows just how terrifyingly accurate these devices were. Plus the technology was made as simple as possible to use, so that many people could be trained in it's use. Great work Helge, 73 de DC4DC ... -.-
I used equipment like that in Vietnam for finding locations of the enemy communication transmitter. Had to get close to get a accurate fix. Got hairy at times.
Fascinating video! Thank you for your time demonstrating this procedure
This is so geeky - and I LOVE it!! ✌I did have a fairly good idea of how transmitters were located via triangulation but never exactly how it was performed IRL. Thanks for showing the procedure of utilizing such a unique and fascinating (in its time also highly feared) device of Nazi equipment. Considering how - understandably - HATED any Third Reich objects were in postwar Norway it's a miracle this device has managed to survive at all. Great and informative vid! 👍
Norway used a lot of Ex-German equimpent after the war. In addition to radios and other high tech equipment, we used German weapons, vehicles, buildings etc. The Germans built roads, railways, airports, power plants etc. that are still in use today.
@@Redflacket I'm very well aware of that. Grampa spent his entire career in Kystartilleriet - a branch that was heavily based on WW2 German armament even up to its termination. He'd hide away multiple WW2 German 'fun to have' relics and tools that were otherwise destined to be tossed into the sea. I had my own short career in Hæren and I'm personally involved in a non-profit organization that restores and shows Norwegian ex-Army vehicles
Great video and great job keeping these machines running. Congratulations.
I remember watching he movie 'The Heroes from Telemark' and wondering how true the movie-science was. I guess without having Kirk Douglas skiing past this is as good as I will know. Thanks.
Fantastic piece of equipment made by fantastic men. Thank you for sharing.
Hjertelig takk for din glimrende video med tidsaktuelle utstyr på begge sider.
I am very impressed to see actual WW2 equipment as used on both sides. We do not see the use of the direction finder in roving detector vans and the "spy" breaks every rule in the spy manual. Leaving a carrier on and exposing a yagi antenna...puh-lease (: . This video, possibly dubbed to English, makes a fine introduction to the movie "A Call to Spy" (2019) where inexperienced amateur spies do make these mistakes in Vichy France 1940.
So the Abwehr are still active in Norway 😁 An excellent demonstration Helge and amazing accuracy too. It is far better than any modern TDOA systems I have seen/used.
felt real tension when you were opening the door of the suspected spy's house. Bravo!
Excellent demonstration, thank you.
Fantastiskta prylar och historia, tack Helge!👍
Thanks for sharing this video and this antique equipment, very interesting!
Thank you for this great video. That antenna performance was exceptional.
Interesting. It all depends on the antenna.
73's
nr.1 cb foxhunter in the 80's (NLD)
Thanks for your video. It was very interesting to watch. I have been reading a lot of WWII history the last few years, particularly anything radio related. This was fun to watch because it brought to life what was actually happening during this period. I look forward to watching more of your videos. 73, N7DN
Good result from the German point-of view, the "agent" was caught red handed. There were 3 main DF stations in Brest, Nuremberg and one other German city. When a signal of no German knowledge was encountered, the 3 DF stations were rung up "Achtung die Frequenz 3600 kilohertz" was told, and the 3 stations made the first DF-ing. Later more local stations "homed in" on the agent, the last stage could be the "Gürtelpeilgerät" which was carried under the jacket of the DF officer
Thanks for the interesting video. It's remarkable that these electrical devices still work. 👍😎
cool that you have it still working and know how to use it
Fantastic job congratulations, very well preserved gear and good working conditions. 73
fantastic collection and great presentation
That's really neat, I love that you received your orders by teletype. My friends and I used to drive around town and track each other with our Citizen Band radios.
Very nice video! You are doing wonderful work to keep old technology alive into the future! I have used antennas that are euphemistically called “elephant cage”. I was surprised with the accuracy of a small, portable radio in your video example!
Thanks for the comment. Yes, we were surprised by the accuracy.
Amazing video! I knew this kind of equipment existed, but it's way different to see it in action. Footage like this will be a great help to future historians (amateur and pro) and to writers of historical fiction like myself.
Paljon kiitoksia Suomesta!
Many thanks from Finland!
Thank You! It was really exiting to see one of those in action!
Thank you for the fantastic video, I very much enjoyed it. Frightening how quickly a trained operator would find the coordinates and agents, I believe it could be done in 3 minutes, G4FAD.
Yes, I agree. With several such search teams and radio communication to the plotting office, it will take 3 minutes,
Väldigt kul att se hur det gick till och vilken noggrannhet som Tyskarna kunde få till.
Jag har hört om ett kommunikationssystem som heter ”Lichtsprescher”
Här kunde Tyska grupper prata med varandra på flera kilometers avstånd, bara det var fri sikt.
Skulle vara skoj om du har en sådan anläggning att visa och demonstrera.
Rolig och lärorik videt!👍
Thank you for your comment.
I have made several videos about "Lichtsprescher".
It is very efficient. One can transmit secret information without being intercepted.
th-cam.com/video/KS_t8DR9r7E/w-d-xo.html
th-cam.com/video/Qq_sEJGaTwo/w-d-xo.html
And here is one of my first TH-cam videos from 15 years ago.
th-cam.com/video/vR4N6MTx_vw/w-d-xo.html
That is a really interesting piece of equipment thanks for the video Helge.
Amazing video 👍🏼👍🏼👍🏼 thank you.
Amazing! Very interesting! Thank you for sharing this! I personally wouldn't have gone in there without my Luger P08 drawn :)
Thanks Helge. Some more modern systems used antennas that looked similar.
How does the antenna work? It's not really a loop antenna with many turns. Seems to be wire wound with large spacing on fiberglass rods. And even more confusing it has a vertical antenna on top. Also has a sharp 1deg null at one position! My guess the vertical picks up the e field and creates a current flow in the one loop branche. It's balanced when both the m fields of the source and branches are canceled. Note using Lenz law on loops the thumb points to the signal. Also I think one coil is connected to the antenna and the perpendicular coil goes to the receiver.
Thanks for the comment.
The loop is only a winding.
It is copper pipe.
The receiver has a balanced input.
Then a sharp bandpass filter and an amplifier.
The vertical antenna can be phased in to the signal from the loop.
With the right phase there, you get a very deep zero signal.
The direction of the enemy radio can then be determined very precisely.
I will post electrical schematics on my internet site later.
Really good video thank you so much sir for the explanation and demonstration! 😀😄
tack så mycket för denna video! Riktigt intressant att lyssna på!
Awesome radio setup