Resonant frequencies are a thing. Those 6" hot dogs are half wave dipoles at around 800 mhz. You, at around 6 feet in height, are resonant around 80 mhz - much closer to 6 meters. If you bought a big 9 foot long salami, you would see much more heating.
@@KQ4RIVyes, a hot dog is a salty conductor, so you could transmit using one. Theres a guy at hamventions sometimes that likes to light up a pickle (salty) from inside like a light bulb with RF. It wont be a very efficient antenna, but it will radiate something.
Nice little idea and video. I was also noticing the opening on 6m when I was on 10m. In one minute, adjusted the Buddipole and picked up a dozen or so states on 6m FT8.
when 6 is rocking switch to SSB, you will make more contacts a lot faster! QRP to a dipole there is very doable, I have worked small 10 watt stations 1500+ miles away. You won't work a lot of multihop with low power SSB so that is where FT8 shines
Loved this video. I had to click on it as soon as I saw it because I used a campfire hotdog roasting fork to add some length to a used 2m/70cm dual band antenna I picked up. The antenna was 3:1 on 2 meter before adding the length and after adding the "tuning fork" it was down between 1.2:1 to 1.5:1 on 2 meter.
My wild guess is localized contact RF burn. Like you might get if your shack isn't grounded. I think this was a good call to add the RF calculations. It makes people think more about what they are doing and the possibility of harming themselves or someone else (however remote it is). It is pretty simple and a good exercise.
I do them yearly because I run high power at 144mhz thru 1.2ghz. 1kw on 2m to 20 DBi gain antennas, 750 watts on 70cm to 24 DBi gain antennas, and 550 watts on 23 cm to 26DBi gain terrestrial antennas and the same to the 2.1 meter EME dish... so on 23cm 75 feet is min safe distance but the antenna pattern is very tight and none of the RF reaches the ground until hundreds of feet out... when working on the dish I lock out the amplifier power! Effective radiated power is 133,511.647 watts!!! Working on 10ghz now... eventually I want a 20 watt amplifier, dish gain there is insane at 44.6 DBi... ERP with 20 watts is 351,711.162 watts... scary stuff to work with!
Josh, before they had good metering, "The Hot Dog Test" was used to measure frequency on open feed lines and antennas: On open feeders, a several metre run was placed just above and attached with insulators to a wooden board. The Hot dogs were then affixed in a long line directly on top of the open feeders.The dogs don't need to touch each other. Power is then applied, and then the node points are identified by the burn marks, with the rest of the hotdogs surfaces being relatively cooler. One then uses a measuring tape or yardstick to determine the length between each burn mark, and this is how you arrive at the determination of proper wavelength. I can't believe that you haven't heard about it before: I think that it is still in the FCC Commercial Telegraph Question pool. 😀😃😊😄😆😅😂🤣😭🤣 P.S. You MUST go with the 100% beef Frank's. Sausages are straight out. Vegan dogs are too B12 deficient for a proper test. Some folks have used the combo pork and turkey hotdogs in an attempt to measure wavelength, but this should only be done if on an unhabitabed island and if you are in desperate financial straights. This is also frowned upon at annual HOA cookouts. So there's you NEXT Video Challenge. Please wear a "Kiss the Cook" apron for safety, and proceed at your own peril, Caveat Emptor. All the Best! 73 DE W8LV BILL
Would have been interesting to put a digital thermometer into those and see the difference from start to finish and if the localized discoloration had any heat to it.
Hey just wanted to say you got me interested when i watched your video with the modern rogue channel back in March. Well I just passed my technicians test yesterday. Thank you!
I'm in the same boat, I watched the MR collab videos from a few years back (or so, I forget) and now I have my UK Full licence. I self-studied for the Foundation exam (our entry level) and found an online club here offering courses for Intermediate and Full. Well done on your tech!
Reminded me of the silly things we did on the TR7/UV3 night shift line at Drake. Especially the late Vince Barman (N8ASQ) testing the range of a wet noodle on 2m. All for science, of course! ;-)
A way long time ago (in this galaxy and on this planet), there was a QST artical in which someone built a 2-meter cavity out of a galvanized steel garbage can. The builder discovered hot dogs could be cooked by placing them between the plates of the tuning capacitor and firing a kw of rf into the unit. (You can do it with a couple of nails and a lamp cord, too...)
Here's a theory: The "meat" closest to the antenna was heated by the RF but since the antenna remains cool, it acted as a heatsink so that there was no significant heating of the dog in direct contact with the metal. The immediate area surrounding the contact patch received superficial heating.
At least you got excellent hot dogs! If someone out in their driveway with a bunch of hotdogs on an antenna and radios on their truck's tailgate doesn't have the neighbors shaking their heads, nothing will.
When you were mounting the hot dogs, I heard birds in the background. I wasn't sure if we were going to get an "antenna attacked by hungry birds" segment. ;)
@@haxwithaxe BINGO! I run power at VHF+ so I run a calc anytime I make a change... at 70cm and 750 watts to 25dbi gain of antennas my min safe distance is 135 feet!
You need to increase freq., closer to water dipole at 2400 mhz. 1200 should work fine. Just like your kitchen microwave. Remember, the higher the frequency. the more power applied.
Hi Josh. I am planning a trip to a park to do POTA but I'm going to be very remote with no cell coverage just off grid Ham setup. Is it possible to get my logging uploaded a couple of days later?
Josh, it seems you placed all your hot dogs close to the top of the vertical. Perhaps next time you could put one close to the feedpoint, where RF current, and therefore RF exposure for the hot dog, is higher. 73 VE3GKT
Instead of 50 or so MHZ/ 6m band, you might want to try 5600mhz, the 6cm band, to heat your hot dogs. I think most microwave ovens "transmit" on this from their vacuum tube. At 1000w, you should get a cooked hot dog in 3-4 minutes. In an unshielded environment this could be very dangerous.
Thunderf00t did something similar when the 5G scare was at its peak. Used a thermal camera and stacks of taffy to show where and how deep the warming was. Time for a collab?
My guess would be oxidisation from contact with the metal. I'm no ham, but I do know how microwave ovens work, by vibrating water molecules creating heat, but that's in the Ghz range. Would you get such a temperature rise in the sub Ghz range?
@HamRadioCrashCourse you never know what kind of spurious emissions come from hotdogs, tho. Next testing should involve all the harmonics. That'd be dope. P.S. holy crap your kid is growing up fast. Good to see you out having a fun time. 🤙🏽
Josh, interesting idea but for exposure wouldn't you put your dog in the ground path as a receive your amps output and not that of being a radiator? I'll send mustard for.the follow up. 😅 KF0IPD
I would say it is the frequency and not the amplitude. Dielectric heating (microwave heating) can take place above 10MHz though it is generally extremely weak, most microwaves operate at 2.45GHz which is the 12 cm band. I find this hilarious since 13 cm is the amateur UHF band for satellite communications! I don't use 13 cm...yet, but now I am going to assume it needs dishes and all that fun stuff! Furthermore, I would imagine as you saw with high amplitude low frequency short duration exposure, if you were able to change that to long duration you may have some fantastic results! Here in the Canaderpian ham course they only teach you the HF can "warm" your skin and VHF/UHF can do bad things to your eyeballs, they didn't really say what, but they did stress your eyeballs are a weak spot, though now that I think about it they are full of liquid and liquid is essentially how microwaves work, so microwaved eyeballs, FUN!
at 2304mhz many hams still use a yagi, a loop yagi where the elements are loops of thin metal strips, some use a mesh wifi dish but bulky/lot of wind load.
Just curious; you said 6m has opened up and you don’t want to miss out. Are you chasing awards or is it the enjoyment of the contacts? Thanks for all the great content!
Most chase contacts at first, now I rag chew more with the guys I have worked many times... same on 2m SSB, 2 "local"(out to 200 miles) groups I rag chew with. Occasionally stretch that to 350+ miles if there is a little enhancement. Need some troposheric ducting!!!! Haven't had a good opening this spring/early summer. My record distance there is 1350 miles to the very southern tip of TX(I am in SW MN grid EN24ho). I heard CO2OJ in Cuba during that opening but couldn't get his attention past the wall of east coast station that were calling him!
I know 300 watts to a 1296mhz dish feed horn will kill a bird... ne flew in and landed on the lip of the feed while I was testing... keeled over dead. Now I run 550 watts... Isn't 30mhz the peak RF absorption freq for the human body?
I think if I was there, I would have eaten those bad boys once the experiment was done!!! I say this at the 4 minute mark, before knowing how zany you might have gotten!
![Kumamoto Masters Japan 2024 | Gregoria Mariska Tunjung (INA) [5] vs. Akane Yamaguchi (JPN) [2] | F](http://i.ytimg.com/vi/EIjZybhsWqA/mqdefault.jpg)
I had envisioned you impaling the wieners onto the antenna, but you went the more humane way of twist tying them.
I feel honored that you selected my hotdogs for your test! Nathan represent!
Resonant frequencies are a thing. Those 6" hot dogs are half wave dipoles at around 800 mhz. You, at around 6 feet in height, are resonant around 80 mhz - much closer to 6 meters. If you bought a big 9 foot long salami, you would see much more heating.
@@Jamey_ETHZurich_TUe_Rulez You are resonant at the molecular and atomic levels at gamma and x-ray.
Newish ham here. Are you saying with the right length of hotdog I can make a simplex contact on 2m?!
@@KQ4RIVyes, a hot dog is a salty conductor, so you could transmit using one. Theres a guy at hamventions sometimes that likes to light up a pickle (salty) from inside like a light bulb with RF. It wont be a very efficient antenna, but it will radiate something.
Nice little idea and video. I was also noticing the opening on 6m when I was on 10m. In one minute, adjusted the Buddipole and picked up a dozen or so states on 6m FT8.
when 6 is rocking switch to SSB, you will make more contacts a lot faster! QRP to a dipole there is very doable, I have worked small 10 watt stations 1500+ miles away. You won't work a lot of multihop with low power SSB so that is where FT8 shines
I think you need more power. And stone ground mustard.
😂
Pickle relish and Ketchup!
This would be cool if so...but scary at same time. Lol
Loved this video. I had to click on it as soon as I saw it because I used a campfire hotdog roasting fork to add some length to a used 2m/70cm dual band antenna I picked up. The antenna was 3:1 on 2 meter before adding the length and after adding the "tuning fork" it was down between 1.2:1 to 1.5:1 on 2 meter.
My wild guess is localized contact RF burn. Like you might get if your shack isn't grounded. I think this was a good call to add the RF calculations. It makes people think more about what they are doing and the possibility of harming themselves or someone else (however remote it is). It is pretty simple and a good exercise.
That's what I was thinking. And a 800W RF burn is not the same as heating. And a 5" hot dog isn't resonant at 6m.
I do them yearly because I run high power at 144mhz thru 1.2ghz. 1kw on 2m to 20 DBi gain antennas, 750 watts on 70cm to 24 DBi gain antennas, and 550 watts on 23 cm to 26DBi gain terrestrial antennas and the same to the 2.1 meter EME dish... so on 23cm 75 feet is min safe distance but the antenna pattern is very tight and none of the RF reaches the ground until hundreds of feet out... when working on the dish I lock out the amplifier power! Effective radiated power is 133,511.647 watts!!!
Working on 10ghz now... eventually I want a 20 watt amplifier, dish gain there is insane at 44.6 DBi... ERP with 20 watts is 351,711.162 watts... scary stuff to work with!
@@Jamey_ETHZurich_TUe_Rulez when you can do 500,000 miles off the moon get back to me! Or 1350 miles on 2 meters...
@@Jamey_ETHZurich_TUe_Rulez Dude there are italian stations running 25kw!
@@Jamey_ETHZurich_TUe_Rulez where the hell did I say that? I DIDN'T!
Josh, before they had good metering, "The Hot Dog Test" was used to measure frequency on open feed lines and antennas: On open feeders, a several metre run was placed just above and attached with insulators to a wooden board. The Hot dogs were then affixed in a long line directly on top of the open feeders.The dogs don't need to touch each other. Power is then applied, and then the node points are identified by the burn marks, with the rest of the hotdogs surfaces being relatively cooler. One then uses a measuring tape or yardstick to determine the length between each burn mark, and this is how you arrive at the determination of proper wavelength. I can't believe that you haven't heard about it before: I think that it is still in the FCC Commercial Telegraph Question pool. 😀😃😊😄😆😅😂🤣😭🤣 P.S. You MUST go with the 100% beef Frank's. Sausages are straight out. Vegan dogs are too B12 deficient for a proper test. Some folks have used the combo pork and turkey hotdogs in an attempt to measure wavelength, but this should only be done if on an unhabitabed island and if you are in desperate financial straights. This is also frowned upon at annual HOA cookouts. So there's you NEXT Video Challenge. Please wear a "Kiss the Cook" apron for safety, and proceed at your own peril, Caveat Emptor. All the Best! 73 DE W8LV BILL
I love this! Thanks for the history lesson.
we've used fluorescent tubes as well
Would have been interesting to put a digital thermometer into those and see the difference from start to finish and if the localized discoloration had any heat to it.
hahaha I was waiting on this one to come out. Nice turnaround and video.
Cat at 4:30, keeping an eye out for the safety of the kitty, LOL
Nathan’s on sale? Nice.
Hey just wanted to say you got me interested when i watched your video with the modern rogue channel back in March. Well I just passed my technicians test yesterday. Thank you!
Congrats!!
I'm in the same boat, I watched the MR collab videos from a few years back (or so, I forget) and now I have my UK Full licence. I self-studied for the Foundation exam (our entry level) and found an online club here offering courses for Intermediate and Full. Well done on your tech!
For science! Adorable black cat too.
Reminded me of the silly things we did on the TR7/UV3 night shift line at Drake. Especially the late Vince Barman (N8ASQ) testing the range of a wet noodle on 2m. All for science, of course! ;-)
A way long time ago (in this galaxy and on this planet), there was a QST artical in which someone built a 2-meter cavity out of a galvanized steel garbage can. The builder discovered hot dogs could be cooked by placing them between the plates of the tuning capacitor and firing a kw of rf into the unit. (You can do it with a couple of nails and a lamp cord, too...)
Here's a theory: The "meat" closest to the antenna was heated by the RF but since the antenna remains cool, it acted as a heatsink so that there was no significant heating of the dog in direct contact with the metal. The immediate area surrounding the contact patch received superficial heating.
Great job on the videos I've got the ft-60r .
73
V02MNB
Yeah, that was pretty cool. Though I don't know if it functions as a good cooking Unit, but it is fantastic.
Vertical collinear dog-tenna? Loved it! de AF5T
At least you got excellent hot dogs!
If someone out in their driveway with a bunch of hotdogs on an antenna and radios on their truck's tailgate doesn't have the neighbors shaking their heads, nothing will.
Nathan's franks for the win!
When you were mounting the hot dogs, I heard birds in the background.
I wasn't sure if we were going to get an "antenna attacked by hungry birds" segment. ;)
All this tells me is that this whole "you need to determine your exposure" thing shouldn't matter if you are maxed out at 100W.
*generally* yes. But the calculators will be more precise. It only takes a minute.
The higher the frequency the more even relatively low power matters. 70cm at 100w has a much bigger minimum safe distance than 20m at 100w.
@@haxwithaxe BINGO! I run power at VHF+ so I run a calc anytime I make a change... at 70cm and 750 watts to 25dbi gain of antennas my min safe distance is 135 feet!
But will the hot docs require chemotherapy in later life?…..
You're not right! Neither am I, It's all good!
Lol
Perfect screenshot to explain to my friends and family what ham radio is all about! Lol.
Glad you liked it!
4:42 Cooking dogs, a little black cat came to visit and see!
Gordo has been doing this for years in his demos...
Holly Heru Wamsley W3WVV silent key he did this with a linear amp cooked them across the plate caps back in the day hehe
Missed opportunity. You skewer the dog, wrap bacon (using an alligator clip and a ceramic ccap), and use them for different bands.
As I watch this, all I can think of is the last time.. “we’re gonna cook some hotdogs” 😂
Fun video to watch, thanks.
8:44 Owen Wilson is a ham? Wooowwww
Hmmm ..... a "linked" vertical! Dang ... you were getting out on 6m! Nice exposure on the rules!
73 - KF6IF
LOVE this!
Failed experiment, but you can fix it if you do this: String the sausages together to 9 feet, add dielectric mustard, and watch the sizzle.
Dude, When are you going to open your own brand of Hot Dogs? "PinkLine HotDogs" RF now stands for Radio Franks!!! lol 73.
Should have done it on 27.025 and 10k watts
the takeaway is don't put your fingers on a transmitting antenna...🤔
You need to increase freq., closer to water dipole at 2400 mhz. 1200 should work fine.
Just like your kitchen microwave. Remember, the higher the frequency. the more power applied.
Attempting to cook hot dogs on a 5’ antenna.
Now I’ve seen everything. 😂
Yep, you’ve seen it all! Glad I could help get you across the line. 👍
Hi Josh. I am planning a trip to a park to do POTA but I'm going to be very remote with no cell coverage just off grid Ham setup. Is it possible to get my logging uploaded a couple of days later?
Yes. You generally always upload logs after.
"Honey, come see this, the goofy ham radio neighbor is up to shenanigans again..."
Josh, it seems you placed all your hot dogs close to the top of the vertical. Perhaps next time you could put one close to the feedpoint, where RF current, and therefore RF exposure for the hot dog, is higher. 73 VE3GKT
Instead of 50 or so MHZ/ 6m band, you might want to try 5600mhz, the 6cm band, to heat your hot dogs. I think most microwave ovens "transmit" on this from their vacuum tube. At 1000w, you should get a cooked hot dog in 3-4 minutes. In an unshielded environment this could be very dangerous.
Thunderf00t did something similar when the 5G scare was at its peak. Used a thermal camera and stacks of taffy to show where and how deep the warming was. Time for a collab?
I support him on Patreon. Lol.
"Thunderf00t did something similar"
There's a name I haven't seen in a long time!
Nice Go-Kit! 73 de WP3BM
My man grabbed the most expensive hot dogs in the store... Must be nice to live that life.
They were on sale! I was spaving!
My guess would be oxidisation from contact with the metal. I'm no ham, but I do know how microwave ovens work, by vibrating water molecules creating heat, but that's in the Ghz range. Would you get such a temperature rise in the sub Ghz range?
Sounds like another test is in order! I guess I have the excuse to purchase the 905 now?
I'm waiting to hear you transmit, and whatever plane above you cuts out briefly. 😂
Ssb won’t do what need. I was using ft8
@HamRadioCrashCourse you never know what kind of spurious emissions come from hotdogs, tho. Next testing should involve all the harmonics. That'd be dope.
P.S. holy crap your kid is growing up fast. Good to see you out having a fun time. 🤙🏽
What antenna? Looks like a WRC but I don't think those handle 1kw.
Chameleon whip. Wolf River tripod. Handles it fine. What’s in there that could fail?
@@HamRadioCrashCourse makes sense. The tripod is what I was noticing
Try it with microwave or radar frequencies. Radar is what led to the development of microwave cooking.
I will be, "frank," with you. This can be dangerous.
Nathan's are good dogs, probably increased your bandwidth by about 500 KHz.
Josh, interesting idea but for exposure wouldn't you put your dog in the ground path as a receive your amps output and not that of being a radiator?
I'll send mustard for.the follow up. 😅 KF0IPD
The hot dogs add 3dB of EIRP
Nice work! Always enjoy these videos. Anyone know what whip and tripod is Josh using? 🤔
Chameleon ss17 whip and Wolf River tripod and mount.
Now if you set up a booth at Costco, You can sell the hot dogs!!! lol
Josh did you buy new amp for your shack
The "collective we" got me laughing... Lebowski fan by chance?
What kind of case is that you have your radio in?
thank you
You are now a super ham after eating irradiated hot dogs
So there you go, kiddies, don't lick live antennas! And do your RF exposure calcs! 😀👍
I was expecting you to sing the armor hotdogs jingle but that'd be a copyright claim and a half.
I would say it is the frequency and not the amplitude. Dielectric heating (microwave heating) can take place above 10MHz though it is generally extremely weak, most microwaves operate at 2.45GHz which is the 12 cm band. I find this hilarious since 13 cm is the amateur UHF band for satellite communications! I don't use 13 cm...yet, but now I am going to assume it needs dishes and all that fun stuff! Furthermore, I would imagine as you saw with high amplitude low frequency short duration exposure, if you were able to change that to long duration you may have some fantastic results! Here in the Canaderpian ham course they only teach you the HF can "warm" your skin and VHF/UHF can do bad things to your eyeballs, they didn't really say what, but they did stress your eyeballs are a weak spot, though now that I think about it they are full of liquid and liquid is essentially how microwaves work, so microwaved eyeballs, FUN!
at 2304mhz many hams still use a yagi, a loop yagi where the elements are loops of thin metal strips, some use a mesh wifi dish but bulky/lot of wind load.
drag out the IC-905! LOL
It’s starting to look that way.
Where would one find out when 6 meters opens up?
Propagation reports. The Cluster. Run WSPR at home.
Poke a wire probe in a hot dog and connect the wire to a ground stake, then try it?
I like that amp. What, where,how do I get one.
Thanks
Go check out my last pota video.
Just curious; you said 6m has opened up and you don’t want to miss out. Are you chasing awards or is it the enjoyment of the contacts?
Thanks for all the great content!
Most chase contacts at first, now I rag chew more with the guys I have worked many times... same on 2m SSB, 2 "local"(out to 200 miles) groups I rag chew with. Occasionally stretch that to 350+ miles if there is a little enhancement. Need some troposheric ducting!!!! Haven't had a good opening this spring/early summer. My record distance there is 1350 miles to the very southern tip of TX(I am in SW MN grid EN24ho). I heard CO2OJ in Cuba during that opening but couldn't get his attention past the wall of east coast station that were calling him!
Should I venture into field cooking with ham radio equipment, it will most likely be on the top of a G90.
OMG, you’re really doing it. 🤣 🌭
Radio waves have hz. So watch out they might hz you!
they could MEGA hz you! 😵
I know 300 watts to a 1296mhz dish feed horn will kill a bird... ne flew in and landed on the lip of the feed while I was testing... keeled over dead. Now I run 550 watts...
Isn't 30mhz the peak RF absorption freq for the human body?
Interesting video. Who says Hams don't experiment? 73 Al K3ZE
Nah, you need to go up to the microwave bands and higher so it can penetrate through the dogs. Good test though! LOL!
My wife is allergic to pork. Would beef hot dog work better? Ben ny0o
more power = more yummy hotdogs!
Try 70 cm or hirer like 100 GHZ that could be fun .😄
Buccees there?
You missed a chance to do further testing. Your little buddy there could have done a cat scan.
Hah!
Should have use a dog as a capacitive hat on the antenna.
I think if I was there, I would have eaten those bad boys once the experiment was done!!! I say this at the 4 minute mark, before knowing how zany you might have gotten!
What type of antenna did you use? Thanks!
Looked like the 17ft Chameleon telescoping whip.
@@forgetyourlife thanks!
So were any hotdogs harmed?
2.4 GHz tx would go the trick.
Put a dog between the driven and radials and send it😂
You should've cooked ham
Giddit?
Haha, crash test hotdog! 🌭
What antenna is that and what bands can it cover?
It was a simple 17’ whip adjusted for 6 meters.
I guess with my 5 watts on EFHW antenna I couldn’t even cook a lil smokie 😢
So my take away is hot dogs help lower SWR.
You forgot the ‘control’ sample. Same setup with no rf applied. Jus sayin.
I wonder what your neighbors think.
Try it at 1000 watts on 70cm
The laugh is a little sinisterly………😂
It would probably work better on the 13cm band.
Those are cooked enough for me 😂
Hotdog dipole