Spy Radio: Antenna Considerations

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00:00 - Introduction and History
04:33 - Stay Behind Forces
09:28 - Concerns for the Prepared Citizen
16:06 - Standing Wave Ratio (SWR)
21:29 - End Fed Half Wave (EFHW) Antennas
26:21 - Loaded Coil Antenna Systems
32:38 - Magnetic Loop (Magloop) Antennas
35:15 - Antenna Tuners
48:38 - My Personal Setup
01:02:52 - Closing Thoughts
Disclaimer:
No company sponsored this video. In fact, we have no sponsors. We are funded 100% by you, the viewer. All of the equipment and materials used in this video were purchased by us with our own personal funds. As such, we have no financial incentive to recommend certain brands or products, and none of the companies mentioned in this video were given prior notice that we would be featuring their products. We are happy to help companies develop better products, but we must maintain neutrality in order to ensure the longevity of this content. Specific gear comes and goes, but doctrine lasts a lifetime.
We take this unique approach to encourage a more educational perspective, rather than getting caught up in the tiny details of gear that sometimes overwhelms the tactical community and warfare doctrine in general.
This content is purely educational and does not advocate for violating any laws. Do not violate any laws or regulations. This is not legal advice. Consult with your attorney.
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Опубликовано:

7 авг 2024

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Комментарии : 442

@northpointaxe6167 Год назад

Christmas lights running around the outside of your house at the place where roof meets wall. Along with a copper wire rolled around the lights wire. If it isn't "the season" you can even use the electrical wire of the lights themselves. Plenty of people leave their lights up year round. My grandfather would use a homemade sugar rocket attached to a spool of wire and shoot it up over the trees in the back yard, very thin wire. He would launch a new wire every holiday that fireworks were normal. This allowed him to get signals from all over the world.

@sophisticatedmorons 10 месяцев назад

OG tradecraft

@pinetree9343 10 месяцев назад

I wish I knew your grandfather

@micwell2247 10 месяцев назад

I use a simple set up that goes into the ground portion of an outlet. Turns the house house ground wiring into an antenna ,,,just make sure it's the ground portion of the out let...other wise if you don't know, don't do it ...lol . There is also the need to make sure your outlet is not hot to...the dumb breed dumb and the ugly breed ugly ...carry on gentlemen

@echo5delta 9 месяцев назад

That’s a good solution! We have it so much easier with small quadcopter UAV’s to fly a wire up which works really well especially when you’re in the mountains and live in a valley.

@interstellarsurfer 6 месяцев назад

Your grandad was based. 👍

@Chameleon_Antenna Год назад

We’re currently designing a NEW LEFS which will be more than 50% lighter and smaller. We might have to Patent the design because it will include a NEW feature unseen so far that will make S2 UNDERGROUND very happy!

@scubabbyy Год назад

Any kind of time frame until this will be available?

@ryanjones9305 Год назад

My mpas 2.0 is my go to.....so you have my interest in something newer and lighter.

@1painter4hire Год назад

" Spying" is now part of the terms of service in every device or service we use now . SMH..... Thanks Man 👍

@AldoSchmedack Год назад

Except old school gear.... (wink)

@captainscarlett1 Год назад

When I was an army signaler not so long ago the equipment was big and clunky. Today it's much smaller, cheaper and easier. Consumer grade is as useful as military grade, more or less, for most practical purposes. I learned to use an SWR meter as a CB kid. The military radios I used were not as good as a basic CB except that they were waterproof.

@samo4866 6 месяцев назад

The biggest difference was the range of frequency and the amount of watts you were allowed to use, and the ability to encrypt it. At least my dad's radio in the marines could be encoded

@Chameleon_Antenna Год назад

The CHA LEFS 8010 is water resistant! No need of extra weatherproofing. Until a month ago I had the first prototype ever made of the LEFS installed right here at my ATH in Phoenix. Has yiu know it can get very HOT and since the last 6 months or so got wet due to extraordinary rain fall so far! This prototype is without heat shrink. The unit has been performing without ANY issues since then!

@ryanrichards88 Год назад

This channel is converting me from knuckle dragger to comms nerd. Thanks, bro.

@invisibletosociety8338 Год назад

Welcome to the world of tech.

@jddavis8431 Год назад

I love shortwave listening. I learned to build random wire antennas for my set-up. A slingshot with a weight attached to strong cordage means I can place my antennas high in trees with relative ease.

@highbrass3749 Год назад

Keep educating We The People. As a former Marine Iraq war vet i salute you sir. Keep doing what you’re doing.

@dustyrhodes1655 Год назад

Thank you for serving our great country!

@allenshepard7992 Год назад

Being prepared today while the internet, Amazon are still easy is critical. Having Comms in place, tested and a rapport with others before the disaster (train derailment, flood, hurricane, tornado, etc) is critical. NOTE: New AI lets people fake speech in real time. Parents are getting "Send money, my car died and they stole my wallet" or "I've been kidnapped" messages from their kids. Having a pass phrase or better a 10 letter word where one challenges and then counters with a letter and number is good. Include another letter to mean "Its me, but coms are compromised" For example, many home alarms have a sequence that turns off the alarm, turns on the microphones and dials 9-1-1 if a person is forced to open their home. This stuff is not just for Raven Rock or secret military bases. Sworn officers (police) have their own key words to let dispatch know "Act cool, but send help quietly"

@KingLoopie1 Год назад

Radio operators are the unsung heroes of history... Good info! There's a guy in Sweden was doing nvis testing on 40 meters with the antenna on our close to the ground if necessary. He had great results although at an efficiency cost. He was also able to make some contacts. Obviously not a preferred scenario, but if necessary it can be done without having an antenna in the air... 👍

@Peter_Enis Год назад

It's the most reliable comms you can have in an shtf-case scenario....

@barclaymatheson8240 Год назад

Aluminum window screen works very well as a ground radial. It can also be used as a hf antenna

@nicke.3011 Год назад

Just saw this here on utoob.

@user-yg7vp2vi4x Год назад

Been doing that since I bought a portable Alpha Antenna at the last Hamvention in the Hara Arena. That and a few other bits of wire get me 80 thru 6.

@hrosemd Год назад

Every time I try to learn radio stuff, I just start hearing the teachers voice from the Charlie Brown cartoons.

@daltarkingofknights172 Год назад

That’s how I was when I started. Take it slow and look into stuff you think is interesting. Stuff like “How do you bounce radio waves off of the sky?” can be great rabbit holes to start with. Inevitably you’ll have to look up what that funky sounding word means, or why something is mentioned so often. Learn some basics, and definitely ask a lot of questions. Most people when explaining an answer will end up explaining a lot more than just the answer itself. Make the learning of this hobby your own personalized route. Look into what interests you the most and you’ll end up putting the pieces of the puzzle together.

@snakemarcopercocet4413 Год назад

Follow that voice let it guide you

@parri0923 11 месяцев назад

It’s funny as I’m the opposite. My ears perk when I hear certain words or acronyms.

@xanatax1844 11 месяцев назад

suggestion to anyone who wants to SEE people try to run radios, … *kinda* like the “spy stuff” in this video, but in public: look-up “Parks on-the-air” & “Summits on-the-air” … Amateur Radio operators go to public parks, or hike up a mountain, setup off-grid stations & make contacts. Much is tracked on the internet, so you don’t need a radio to find out. 😊 You could go to the park & chat in person, if you are polite about it. 👍 (try not to interrupt anyone mid-transmission, especially receiving, that can be challenging with a portable antenna!)

@xanatax1844 11 месяцев назад

sorry, 2nd suggestion was meant for the main video. 😂 this video started off fun, but getting into theory wasn’t nearly as good as just watching someone pull all the gear out of a backpack, setup a portable station, and start making contacts.

@onemoreguyonline7878 Год назад

Would it not be safe to say that our current era of seemingly uncaring leaders is to flesh out the people who aren't dedicated to the country we live in? The fact that s2 is still allowed to churn out awesome and educational content makes me happy to know where we live.

@logiciskindness Год назад

You are the man. Thanks for keeping us sharp- seriously great content - and fostering the brotherhood.

@billjames3148 Год назад

College semester of Radio, My favorite read is the Norwegian radio operators of ww2 . Today seems like yesterday with the snoopy people in town and out in the woods. Always have 911 on speed dial if they don't like what they see. Great video, good ideas with antenna options for your operational Freq.

@michaels9926 10 месяцев назад

Is the name of the book "Norwegian radio operators of WW2" ?

@project_poor_runner Год назад

Glad to see you back here and posting

@mor4y Год назад

I wish I'd never sold my little Sony World band radio that I picked up for a song in duty free in Ireland years ago. Tiny little flip top thing with a reel out antenna that was 30ft long!

@nate43data Год назад

Love your videos. Already knew you were a ham, this definitely confirms it. This video is a masterclass in fast understanding of radio concepts. As someone who already knows this info, I still am enjoying the video. Not to take anything away from it, but I don't agree that a horizontal dipole without height above ground/counterpoise and frequency reference is always NVIS. I hope many more radio knowledgeable people are created from watching this. It's a TON of info, presented to be easy to understand. Also, this video was a TON of work to produce. Thanks for this and all your videos!

@lilblackduc7312 Год назад

I've been an "Electronics Junkie" since the 1970s. I totally agree. Did anyone mention the advantages to employing a 'ground' to bleed-off static & enhance reception? 🤔 😳

@nate43data Год назад

@@lilblackduc7312 That's a whole can of worms in itself. Explaining earthing, counterpoise and ground gets deep quickly. I have 4 rods bonded to the electric service entrance, shunts on the last rod before coax entrance. I have a resistor at the transition from balanced window line to coax to bleed static. Hopefully, anyone that gets motivated from this great video will get to the wonderful world of earthing their radio system. 😅

@lilblackduc7312 Год назад

@@nate43data Outstanding! What you describe may sound 'extreme' to some. I'd say, That's just about right! 😎👍☕

@robertdeforest9682 9 месяцев назад

Saw this video when it came out and didn’t understand most of it when he started talking about SWRs. Months later I got my HAM license and came back and I understand so much more, and it’s all good stuff. Solid video

@LilBootySnuggle Год назад

Happy to see you back S2A

@autonomous_collective Год назад

@steveschroder8782 Год назад

The length of a random wire antenna can matter. Certain lengths allow for multiband operation. Other lengths are too close to being a half wave long and do not work well. Often a transformer is needed for both end fed half wave and random wire antennas. Tube radios, like the ones used in WW2 did not have an external antenna tuner. There is an output matching circuit that is tuned for different frequencies. End fed antennas can be as efficient as resonant dipoles.

@allenshepard7992 Год назад

Sir, Kudos for taking on SDR. For the folks who find batteries a mystery Short Wave listening is a good addition to the NOAA/AM/FM radio. Software defined radio puts 90% of the static hardware into programable, changeable software. Hence Software Defined Radio. SDR is the under $100 four piece way to start listening to HAM bands, Aircraft, AM, FM, Short Wave and even broadcast TV. Because the hardware is in software, you get *all* the radios in one for the 2 MHz to 900Ghz range. CAUTION SDR software is more complicated than installing Windows OS or other basic software. The four parts are the SDR "dongle" that receives the signal and fits in the USB slot. Antenna (normally comes with SDR) for that frequency range. A computer stronger than a I3 or Celeron CPU, suggest an I5 or I7 running at better than 2 GHz, SDR software and special driver. Raspberry PI 4 is the minimum today. Now the hard part: Which SDR? Which Software? Good question. Depends on budget. Doing the research and finding a friend to help is is good. Hack RF is good. I also use NOOELEC NESMART. Just get a complete set up with antenna and wires. SMA connectors are a whole video. Here is where having the short wave radio is handy to know what stations are out there. Not all radio stations come in equally. For those surrounded by trees and tall bushes expect degraded reception. Foliage is the enemy. An open field or urban back yard without trees is better. Granted this post is not much help. It is just to prevent pitfalls and give a sense of scale.

@Mechanics.Life80 Год назад

New Tech here, and can someone tell me how in the hell I learned more here then I have any where else? Great video brother!

@NBK-ro4sz Год назад

The navy still uses optical signaling for extra secure communication

@MidlifeRenaissanceMan Год назад

You can achieve similar with high GHz signals. Very directional and once you get up there, things like clouds, fog, rain and snow can reflect and refract signals.

@NBK-ro4sz Год назад

You should look into optical communications next! Fiber optic cable with OOK modulation is simple and cheap to implement. Also, narrow beam laser's can be effective and extremely difficult to intercept in free space.

@ddegn Год назад

Do you know of good sources for DIY laser communication?

@kerbalairforce8802 Год назад

I'd love a commercial laser antenna option

@MedSpark Год назад

One problem with free space laser is that it likely can be seen with night vision equipment at night.

@Spazass666 Год назад

@@ddegn Not a direct answer to your question, but close enough to be relevant, or at least help you understand the principles at work. You can just take a speaker wire (or headphone wire) from the amp on your transmission side, and attach it to power your light source, I've seen it done with LEDs, but I'm sure it can be adapted to lasers. The fluctuations in your voice, modulate the amount of power going to the light, which can then be read on the receiver side via a small photo-cell, or "solar panel". Even one as small as from a solar powered calculator works. Hook the leads from the photocell up to an amplifier to listen to the transmission. I know it sounds too simple to work, or just plain crazy, but it really does work. Remember you're not hearing the light source, you're hearing the modulations in the light source.

@dadteaches Год назад

It's line of sight, and can be degraded in daylight. You can also make short-range IR transmitter, receivers, much like TV remotes; however anybody that can see IR will see it like a beacon. If it's line of sight, just go microwave, as most don't really intercept or DF these, and if you do it on the ISR bands, it can be hidden. Then you have PTP digital set up.

@nautilusbrlist Год назад

Another great video. Keep up the good work, brother!

@oliverallen5324 10 месяцев назад

I'm glad you're still citing texts in your videos. Your style of presentation is much appreciated. Still waiting on more radio content!

@NickWindham Месяц назад

This video was both entertaining and very informing for a newb to amatuer radio like me. You demystified antennas in a short amount of time while making the subject captivating instead of bedtime reading material.

@ImbuedBeard Год назад

Notification Squad roll in. Thanks for another informative video S2. You help more than you realize. Stay safe.

@IndustrialSociety1995 Год назад

We are here.

@boisinnawoods Год назад

We are listening

@Absynthexx1 Год назад

I like to think of the antenna tuner working between the antenna and the radio as the scene with the farmer in Hot Fuzz. A farmer with an incoherent accent answers the cop's questions; the older cop (also unintelligible) translates the farmer who then has to be translated by Nick Frost's character to the cop. Actually a very funny scene, you should check it out.

@oldsoldier181 Год назад

I am a huge fan of chameleon antennas. In the truck, I keep the MPAS 2.0 system, as well as the tactical delta loop. In my radio kit, I have my Xiegu, and the chameleon pocket antenna. This gives me the ability to use a more robust vertical antenna for far, the delta for near, or, on foot, the pocket antenna for anything, depending on how close to the ground I set it up. I also use their Emcomm III base for my home station, which is a great product. I like that their stuff is made for outdoor use. Never let me down yet, with 2 years of use!

@zack18666 Год назад

Always look forward to these videos

@SpankyK Год назад

All right dude, I'm hooked. You've got me totally into HF and I'm going full on, balls deep. Working on my HAM now, would like to do comms in my region.

@AldoSchmedack Год назад

The ARRL is your golden source! Get their study books! Got my license as a kid with their help. Finding a local elmer or going to ham fests and talking will speed up the learning. Thankfully ham radio people are willing to teach. It is opposite of gun community when looked at as a whole. Humility, sharing knowledge, gifting, following laws, strongly supporting at grass roots, etc are all in place. Best of luck! ❤

@robertdeforest9682 9 месяцев назад

I was inspired by this video too! Recently got my HAM License and now I’m learning to solder, build antennas, and test them for peak efficiency. S2 gave me a new hobby

@SpankyK 9 месяцев назад

@@AldoSchmedack thanks so much man, I've got the radio app to practice on.

@larrybushman1 9 месяцев назад

Being the comms bod in our small group I found that very interesting and entertaining. Many thanks and 73s from the Uk

@ijbird15 Год назад

Thank you for taking the time to bestow this knowledge on the community. You are the man.

@TheLurk1814 Год назад

Good to see you're back. Keep at it

@rickjohnson6818 Год назад

Impeccable and intuitive timing. Thanks

@invisibletosociety8338 Год назад

I would say perfect timing with all that is going on these days it's time to find friends that share the same interest.

@neonsigns6721 Год назад

Great topic. I know to some people it's not as exciting as some of the other items discussed here. But you have done a fine job of teaching us that it's not all fun and games. There are other important things to consider. So, thank you

@athaphian 6 месяцев назад

This was one of the best videos explaining antenna techniques I've seen so far. And the angle (spy tactics) that it was told from was both entertaining and educative. Thanks for sharing!

@AldoSchmedack Год назад

A clip-on wind-up long wire antenna that you can hang from inside your dwelling is worth it's weight in gold. If a spy the need to use a radio away from buildings quicky and quietly (portable and small) or otherwise from indoors at a secured place are key. Civilian SW radios are a big thing I hear in past giving plausability. Such a fascinating topic. Cold War is a chessmaster level read for historians and those into the best of fiction and non-fiction. Fun stuff!

@gary6212 Год назад

This is great content - thanks for taking the time/effort to make this. Taking my General exam in two days.

@radiobill4082 Год назад

Don't stop at the general, take the extra next it's worth the little bit of time you spend. Especially on the 40 m where the extras and advanced class don't have to put up with the international broadcast band interference. Get the whole puzzle, not just some of the pieces.

@gary6212 Год назад

@@radiobill4082 Agreed, I've got the extra exam schedule for the 7th of next month and getting 100%s on the practice tests.

@B.Murphy Год назад

As a radio nut, i loved this video. Keep up the great work!

@jayduffy7615 Год назад

Another amazing video. I really love & appreciate e very aspect of it! Great information & delivery of it. Thank you for all that you share with all of us! 🇺🇸

@ScottPlude Год назад

I am SUPER happy to watch this episode! I am an extra class and my daughter (14) is already a general. This has motivated both of us to put more efforts into prepping using our licenses in real-world scenarios. Thanks!

@ungratefulpeasant8085 Год назад

Great video, thanks for the work that you put into these.

@lilblackduc7312 Год назад

Congratulations! You've composed an Educational/Informational video that's generally the ""Whole ball of Wax"... Thank you...📻🎤🎵🎶

@haldorasgirson9463 Год назад

My first father-inlaw was one of those SF stay-behinds in late 50's Germany. He served in Vietnam 64-66. Working with tribal forces. One tough mother.

@GarretPetersen Год назад

DX Commander Expedition and SteppIR Crank IR are great antennas. Both can be setup for a day or weekend. For just an hour or two the homemade or kit built end fed half wave can't be beat, especially for it's portability.

@WisconsinGabe Год назад

PLEASE Reach out to the Tech Prepper, you guys need to at least compare notes! I think a collab would be insane!

@df29208 Год назад

What is the URL for the RU-vid site?

@cameronmanicone Год назад

Coming from doing SATCOM and Radio in the military it's very interesting seeing the "right" pathway to learn all this It's hard to find a good way to learn all the gaps I have because it's all random knowledge I was able to learn

@dejdej63 Год назад

Thanks for this comprehensive guide to the world of antennas. Great presentation that helped me a lot.

@canidsong Год назад

I use nooelec's balun one-nine in two outdoor all weather installations. it's very inconvenient but it's amazing what a stick of hot glue can accomplish.

@rbmwiv 8 месяцев назад

I remember as a kid everyone had some type of shortwave radio in their house. This video is great the theories on covert communication.

@MrPVaSoldier Год назад

Fantasic introduction, and fantastic video as always

@JDHood Год назад

If you are only receiving, then the best antenna strategy I have found is to get as much wire as you can manage, up as high as you can get it, and as far away as you can get it from buildings that contain electrical stuff (air conditioners, wall-warts, led lights, and all other sorts of things that produce dirty RFI) and connect to it with well grounded coax. The biggest obstacles with SWL these days is the amount of RFI you have to deal with around your house. Just taking a battery powered radio out in your backyard and getting away from your house can demonstrate how "noisy" your house is and render a big improvement in the noise floor.

@GTGallop Год назад

I’m in an HOA with a small yard. Currently running an 80-10 Taurus Harvest EFHW/Rand with no issues. It’s a 9:1 with 64 feet of brown wire that lays across my roof.

@sv4rin Год назад

This , Sir , was one of the most educational HAM Radio - related videos I have watched. Hats-off , 73 de SV4RIN

@sammckown7758 Год назад

Awesome video! Thanks for helping me understand radios and comms better.

@NonyaDamnbusiness Год назад

I've taken a 20m/40m dipole antenna and run it inside my apartment around the walls using bungie cords to keep it stood off from the wall a few inches when pulled taught and done PSK31 QRP via an IC-705 and auto-tuner from the Kansas City Metro into Europe and South America. It's doable, but very frustrating at times when compared to an actual outdoor antenna. I also traveled the USA via RV during pandemic year with that same IC-705 and a Walkingham loop antenna on a cheap yellow Home Depot lighting tripod and very easily hit all over the USA and Europe from national parks across America.

@LanternOfLiberty Год назад

This is the concept of the Swedish Cold War "Ranger battalions". Sw: Jägarbataljon, bastardized Eng: Jaeger Battalion. 600 troops in a battalion, with battalion and company size underground supply dumps spread out over the operational area.

@anthonyfranz8317 8 месяцев назад

Excellent info and presentation of a complex subject. I am SWL only at this time, but was able to gather some useful information!

@toothnfang69 Год назад

Love the comms content!

@SimonBlandford Год назад

Had lots of fun with the PAC-12 antenna. I often use it on a mag-mount on a car as a ground, a 3/8th to M10 thread adapter and the have replaced telescopic part with a 5.5 meter version. With the coil at the base I can just about make a 5/8th wave antenna at 10m and a 1/4 wave at 20m with no coil. The aluminium poles account for 1.2m.

@baconwhiskey821 Год назад

A great video, covered an amazing amount of information.

@upnorthof60 9 месяцев назад

Brilliant video. Well done!

@DazzleCamo Год назад

For those where portability is less of a concern, you can actually bend the ends of a longer dipole to get it into an attic. The middle 1/3 does most of the radiating, so make sure that's high and straight but you can turn the ends a bit if necessary without any big trade-off

@DazzleCamo Год назад

Also, for the uninitiated, there are ways to make a dipole multi band. You trade off portability because you're adding components, and because it's resonant in more areas, you receive more interference too, but might be useful for a stationary setup

@dreed7312 Год назад

"Vladimer, ask this stupid American how unknown persons managed to sneak through his house, past everyone and into his attic without being seen." Answer: Invisibility cloaks?

@korlilkatana7653 Год назад

Great video, watched till the end, because I need to setup and choose another HF antenna.

@leozacharias Год назад

This video was a freaking treat my dude!

@ianxtreem 8 месяцев назад

Excellent video and explanation of tuners!

@psychesoap Год назад

You had me at "small radio". Subscribed.

@Howard_Roark Год назад

Water can get into the extendable whip. This will pretty much ruin the whip as it’s next to impossible to get it all out. It changes the SWR also.

@kerbalairforce8802 Год назад

Put it in a container of rice or descant

@wrekced Год назад

Back in the '90's, a ham radio friend of mine hooked up the drainpipe of the gutter on his apartment building outside his bedroom window as an antenna. His apartment was semi-underground, so the window was about 8 inches off the ground. We put a ground rod in about a foot away, hidden below ground. We used one of the screws that went into the pipe to attach the center lead of the coax. The braid went to the ground rod. The coax went to an adjustable impedance matching transformer and then to his tranceiver. From western washington state we were able to speak to germany, russia, etc. In WWII people used trees and even lakes as antennas the same way.

@scottmayes9646 Год назад

Great video, and educational look at history.

@redneckextraordinaire3073 Год назад

Awesome overview, thanks.

@josephlicata4304 Год назад

Thank you for another informative video.

@Premier-Media-Group Год назад

Infrasonics are amazing, too. Anything MASINT, really.

@nathanwilson5433 Год назад

Another great video!

@thebnbaldwin Год назад

Great video, thanks! I own and operate several Chameleon antennas, awesome products.

@blem7122 Год назад

Great video

@ericgulseth74 Год назад

This is the video I needed 2 years ago when I got my license.

@Sammenluola Год назад

This was excellent, thanks!

@andrewrussell4597 Год назад

I would just add that the buddipole doesnt appear to work with NVIS which you have discussed the merits of before. Also, theres something called a super antenna which can do 80m and is a lot like your buddipole.

@THESPORTINGCAMP Год назад

Great video. Thank you. 🤝

@danialphaomega Год назад

Finally you talk about RF I myself are into EE so radio was no problem I can do amazing things with items I build from unlocking your lambo to turning off your home alarm to hijacking your WiFi or spoof your cellphone or baby monitor to bug your room endless I should of worked for DARPA 😂 And YOU can make a 1:1 by building a blacing balun and or using a auto tunner AND you can build a trap antenna for multiple frequencies

@G7OEA Год назад

Couple of nice shots of Liverpool City centre and the three graces on the Liverpool waterfront.

@joeblow8593 Год назад

Excellent tutorial

@ryanhuggins Год назад

Love my Buddipole and Buddistick. Use these for portable HF regularly.

@alfredsutton4412 Год назад

Good presentation. Thank you for the tactical slant HAM Extra here.

@bevo65 Год назад

9:41 - Bravo for calling it out. 👏

@ferebeefamily Год назад

Thank you for the video.

@TonyLing Год назад

That is a brilliant talk, thanks

@sleeve8651 5 месяцев назад

As to the narrator's comment regarding how difficult it is for HF radio signals to be tracked, I believe with technology being what it is today, that the narrowing down of random signals, is much more refined, than from the era he speaks ! Sometime in the early to mid eighty's, the F.C.C. in the U.S., solicited the help from Amateur Radio stations across the U.S., having these stations transmit at known power levels, specific antenna polarizations etc., as the various F.C.C. Field Offices tracked and determined pertinent information about these known radio signals, making the effort to track random radio signals much easier ! GOD only knows what they have now ?

@gm743633 Год назад

with high swr the power section will turn the power output down to save itself from the high wattage reflected back. This means even less power will get to the antenna.

@vironpayne3405 Год назад

You should consider clandestine antennas of opportunity as a topic. Many of us have loaded up raingutters etc. I've seen videos where people go place to place connecting to barbed wire fences, backstops at ball parks, metal bleachers etc. I believe you may have covered the topic, but not from an actual use case with equipment.

@Jah_Rastafari_ORIG Год назад

Wait wait wait.... @37:39; "impotence...?! Ya mean, 'impedance'...? Kinda a laaarrge distinction there, fella.... So much great knowledge in this video, yet such a showstopper...

@atlanticx100 Год назад

I like all the background videos of the UK.

@bruehlt Год назад

Another good small antenna option is the "superantenna" - its similar to the buddipole or Chameleon. It comes with lots of options but of course just like those antennas is a compromise design.

@DJTheMetalheadMercenary Год назад

Good stuff!

@randygreene5977 Год назад

These days LEO satellites and protocols such as LORA are in use. Look back at the AN/FRD10 and AN/FLR9 antenna arrays that were used back in the cold war. USSR had the equivalent systems to do radio direction finding not only for internal use but also external. I worked at one of these sites in Porto Rico back in the 80's.