K7SW ham radio
K7SW ham radio
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43 Foot Vertical antenna for portable operation.| K7SW
Do you need an excellent contest antenna?
I built a 43 foot vertical for portable operation. This antenna performed like a rock star!
I show you how I built this big antenna for Field Day.
There is not really a parts list for this antenna that I can share, I used mostly spare parts I have in my garage for building ham radio antennas
The construction of this 43 foot antenna can really be made of any materials you have available.
The primary components that you will need are:
43 foot piece of wire for the radiator
4 Sixty two foot radials for the 80 meter band
4 Thirty three foot radials for the 40 meter band.
4 Seventeen foot radials for the 20 meter band
4 Eleven foot radials for the 15 meter band
4 Nine foot radials for the 10 meter band.
Ground anchors geni.us/GroundAncho
- Remote auto tuner like the Chameleon URT1
- 4:1 Unun like the Balun Designs 4132 SW
- 100 plus feet of coax
- Any existing HF ham radio that you have.
This is a list of the building blocks, what you will need to create an antenna like this for yourself.
Переглядів: 15 229

Відео

Discover the CHA URT1 Auto Tuner from Chameleon Antenna | K7SW ham radio
Переглядів 1,9 тис.2 місяці тому
Learn more about the CHA URT1 here - chameleonantenna.com/shop-here/ols/products/cha-urt-1 The CHA URT1 is a versatile and dependable remote tuner that works with almost any type of antenna and any brand or model of transceiver. It’s designed to simplify your setup and enhance your performance, making it perfect for both beginners and experienced operators. Why Choose the CHA URT1 Over a Manual...
Boost Your Ham Radio Setup with the VATRER 50Ah LiFePO4 Battery | K7SW Ham Radio Review
Переглядів 1,4 тис.2 місяці тому
🔋 Get 5% Off with Code 7HN4JLZ7 Buy on Amazon: www.amazon.com/dp/B0CPJ1B5NR?ref=myi_title_dp&th=1 Visit VATRER POWER: www.vatrerpower.com/products/vatrer-12v-50ah-lifepo4-deep-cycle-battery 📡 Welcome to K7SW Ham Radio! Today, I demonstrate how I use the VATRER 12V 50Ah Lithium Iron Phosphate (LiFePO4) battery, a perfect fit for Ham radio operations. Whether you're prepping for your next field d...
The Best vehicle Ham Radio Mount system | K7SW ham radio
Переглядів 5 тис.2 місяці тому
Design your Tackform mount system today. geni.us/Tackform This mount system is by far the most superior mounting system i have used. Being the most flexible mounting options and professional looking system, this is how I use the Tackform system in my Toyota Tacoma for portable ham radio use.
Easy Install: Tackform Mount for Tacoma 3rd Gen | Phone & Ham Radio
Переглядів 1,7 тис.4 місяці тому
I effortlessly install the Tackform accessory mount in my Tacoma 3rd Gen pickup. Perfect for holding my cell phone and Ham radio head, this quality mount offers a professional look and solid support for my gear. Discover how investing in the right products can make all the difference! 🔹TACKFORM Website www.tackform.com/ 🔹Tacoma 3rd Gen mount. www.tackform.com/pages/toyota-tacoma-3rd-gen-2016-20...
Transform Your Older HF Radio: Modernize with Pegasus Plus| K7SW ham radio
Переглядів 2 тис.4 місяці тому
Discover how Pegasus Plus can transform your HF radio operations. In this tutorial, you'll learn how to seamlessly control your radio while simultaneously sending data to multiple loggers and a panadapter for a comprehensive visual of frequencies. With the ability to connect up to 8 applications, Pegasus Plus takes your radio functionality to the next level. Don't miss out on making your operat...
Should you open a Lithium Battery to fix it ? | K7SW ham radio
Переглядів 1 тис.5 місяців тому
The feature of this battery is the built in voltage sensor, was this worth the fix ? gokwh.com/gokwh-12v-100ah-lifepo4-battery-monitor-with-lcd-display/ product link: gokwh.com/gokwh-12v-100ah-lifepo4-battery-monitor-with-lcd-display/ Use product coupon: k7sw12v at checkout page for $50 off.
GoKwh 100Ah LifePo4 battery review | K7SW ham radio
Переглядів 6265 місяців тому
The feature of this battery is the built in voltage sensor, is it useful ? gokwh.com/gokwh-12v-100ah-lifepo4-battery-monitor-with-lcd-display/ product link: gokwh.com/gokwh-12v-100ah-lifepo4-battery-monitor-with-lcd-display/ Use product coupon: k7sw12v at checkout page for $50 off.
Power Your Passion with the Goldenmate LifePo4 20Ah Battery
Переглядів 7558 місяців тому
goldenmateenergy.com?sca_ref=4888147.jraaF2q6zH -coupon code:KEVIN Discover the reliability and efficiency of the Goldenmate LifePo4 20 amp hour battery, your ideal companion for ham radio adventures. We put this battery to the test by using a 50watt VHF radio, both high and low power settings, showcasing its power consumption. Whether you're operating your ham radio in a stationary setting or ...
AA1HE Rotating Receiver Mount V2.0 for portable operating.
Переглядів 1,6 тис.11 місяців тому
📡 NEW! Rotating Receiver Hitch Mount V2.0 by AA1HE 📡 🛍️ Reach out to Harry at k7fse1@gmail.com for exclusive pricing,shipping details, or any questions you might have. Unleash the next level of on-the-go ham radio operations! Introducing the Rotating Receiver Hitch Mount. 🔹 Extended Reach: Position your gear further from the vehicle for better SWR and reduced interference of vehicle door operat...
GoldenMate LFP12100 LiFePo4 Battery | K7SW ham radio
Переглядів 863Рік тому
GOLDENMATE 12V 100Ah LiFePO4 Lithium Battery, Rechargeable Battery Up to 15000 Cycles, Built-in BMS, Back up Battery for RV, Solar, Trolling Motor Fish Finder, Power Wheels, Off-Grid amzn.to/3NO098O This is a really good Budget 100Ah for camping, as I show in this video.
Continuing Antenna Maintenance: Finalizing and Elevating my Tilt-Over Mast-Part 2
Переглядів 2,5 тис.Рік тому
In this continuation of our antenna maintenance series, we're moving to the final steps: finalizing the Fan Dipole HF antenna, securing the cabling, and raising the 40-foot tilt-over antenna mast back up. For new hams who may be unfamiliar with the tilt-over mast system, this will be valuable information as to how this system works. Tune in to continue enhancing your knowledge and ensuring your...
Antenna Maintenance Made Easy: Repairing Fan Dipole on a Tilt Over Mast | K7SW Ham Radio
Переглядів 2 тис.Рік тому
Maintaining your antenna system is crucial for optimal performance, and in this video, we've got you covered. Join us as we take you through the process of repairing a Fan Dipole HF antenna and removing unused gear from a 40-foot tilt over antenna mast. This video aims to benefit new hams who may not have encountered a tilt over mast before, while also serving as a helpful reminder for experien...
3 Ham Radio Antenna Mounts for Portable Operations on a Picnic Table| K7SW Ham Radio
Переглядів 5 тис.Рік тому
In this video, we'll show you three ham radio antenna mounts that are perfect for portable operations on a park bench. Whether you're a new ham radio operator or a seasoned pro, these mounts make it easy to set up your antenna and start communicating. We'll compare a low-cost model that clamps to a pipe or picnic table, a more expensive model that provides a solid vertical mount, and a versatil...
DIY Ham Radio Protection: How to Use 2" Painters Tape | K7SW
Переглядів 8 тис.Рік тому
In this video, I'll show you how to use 2" painters tape to protect your ham radio from harsh environments that can cause scratches to the radio's body. This is an easy and effective method that anyone can do themselves, and it's a great way to ensure your ham radio stays in top condition. With This simple DIY project, you can keep your ham radio looking great and functioning at its best for ye...
Chameleon Antenna MPAS 2.0: How to Set up the 9 configurations | K7SW Ham Radio
Переглядів 22 тис.Рік тому
Chameleon Antenna MPAS 2.0: How to Set up the 9 configurations | K7SW Ham Radio
UHF Adapters for On-The-Go Radio Ops | K7SW Ham Radio
Переглядів 1,3 тис.Рік тому
UHF Adapters for On-The-Go Radio Ops | K7SW Ham Radio
Quartz-fest 2023: Hiking to Activate a SOTA Summit for On-the-Go Ham Radio Communication | K7SW
Переглядів 1 тис.Рік тому
Quartz-fest 2023: Hiking to Activate a SOTA Summit for On-the-Go Ham Radio Communication | K7SW
Portable Radio Operating Made Easy with Receiver Hitch Antenna Mount| K7SW Ham Radio
Переглядів 7 тис.Рік тому
Portable Radio Operating Made Easy with Receiver Hitch Antenna Mount| K7SW Ham Radio
SETUP Allstar LIKE THIS | K7SW ham radio
Переглядів 7 тис.Рік тому
SETUP Allstar LIKE THIS | K7SW ham radio
TACTICAL DELTA LOOP from Chameleon Antenna| K7SW Ham Radio
Переглядів 22 тис.Рік тому
TACTICAL DELTA LOOP from Chameleon Antenna| K7SW Ham Radio
Lithium vs Lead: Battery Load Test Showdown |K7SW Ham Radio
Переглядів 587Рік тому
Lithium vs Lead: Battery Load Test Showdown |K7SW Ham Radio
28 MHz Antenna Project for Winter | K7SW ham radio
Переглядів 5 тис.Рік тому
28 MHz Antenna Project for Winter | K7SW ham radio
Add Tension to your Antenna Mast | K7SW ham radio
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Add Tension to your Antenna Mast | K7SW ham radio
CHA Loop Remote Tuner | K7SW ham radio
Переглядів 3,1 тис.Рік тому
CHA Loop Remote Tuner | K7SW ham radio
FT8 Passenger mobile setup for a road trip | K7SW Ham Radio
Переглядів 1,9 тис.Рік тому
FT8 Passenger mobile setup for a road trip | K7SW Ham Radio
100Ah LiFePO4 Battery for RADIO OPERATION | K7SW ham radio
Переглядів 4 тис.Рік тому
100Ah LiFePO4 Battery for RADIO OPERATION | K7SW ham radio
Digital Mode is REALLY Small| K7SW Ham Radio
Переглядів 3,9 тис.Рік тому
Digital Mode is REALLY Small| K7SW Ham Radio
You WANT this portable HF MAST in your kit | K7SW Ham Radio
Переглядів 32 тис.Рік тому
You WANT this portable HF MAST in your kit | K7SW Ham Radio
25 foot PORTA-MAST from CHAMELEON | K7SW Ham Radio
Переглядів 23 тис.Рік тому
25 foot PORTA-MAST from CHAMELEON | K7SW Ham Radio

КОМЕНТАРІ

  • @DanielFitzgeraldPiano
    @DanielFitzgeraldPiano 13 годин тому

    Thanks for a great informative video on this topic. I’m looking at hitting more repeaters in my area and this will help! 73

  • @HamRadioDuo
    @HamRadioDuo 2 дні тому

    Fun video! I'm researching NVIS so that my ham wife and I can get contacts with another ham radio couple, @e4emb Ed and Shantel. We typically can't get eat other because we're so close. 73 Mike N4FFF es Becky N4BKY

    • @hamradiowithkevin
      @hamradiowithkevin 22 години тому

      Now that sounds like fun. I hope you make it work.

  • @paulshaffer9674
    @paulshaffer9674 3 дні тому

    Squash the smaller Loop a little bit. Increases the output. KG7IRJ Ohio

  • @Ozarkwoods
    @Ozarkwoods 4 дні тому

    What do you use for grounding

  • @pnowikow
    @pnowikow 8 днів тому

    That was so cool. Still blows my mind how hf works

  • @pnowikow
    @pnowikow 9 днів тому

    I've got my eye on the kx2. Do you use it as a base radio with the optional amplifier?

    • @hamradiowithkevin
      @hamradiowithkevin 8 днів тому

      I don't use that as a base radio, portable, hiking, like camping only. For the money you would spend on an amp and all the wires needed, I would just buy a radio like the Ft710. I own that radio too and iltge experience is so much better

  • @twissmueller
    @twissmueller 10 днів тому

    Beginner here and currently looking for a tuner for my MPAS 2.0 and my Icom 705. As far as I understood the main advantage of this tuner is that is tuning near the feed point? Any reasons I would use this over e.g. Icom AH 705 or the MAT 705?

    • @hamradiowithkevin
      @hamradiowithkevin 10 днів тому

      Welcome to the hobby. The two tuners you mentioned are made specifically for Icom. This will make it everything more streamlined for you. The Chameleon tuner is also made by MAT, this means you will be getting the quality you expect. The URT1 will work with any radio combination, and that is one of its advantages. You can use the URT1 at any location throughout your antenna setup. The determining factor will be the antenna you build, buy or setup. 73

    • @twissmueller
      @twissmueller 10 днів тому

      @@hamradiowithkevin Thanks a lot, Kevin! Sounds like the URT1 is the more flexible solution, but need to do more research on the AH705 in how far it does streamline my setup with the MPAS 2.0

  • @pvdk
    @pvdk 12 днів тому

    If you buy the mat-50y you have the same tuner but with a control cable to the FT-710. This way you take advantage of the automatic tuning just like with the internal tuner. Take a look at the mat-50y (yaesu). 73 Phil ON4VP

  • @_droid
    @_droid 12 днів тому

    Nice! For 20+ years I have been running a 18ft vertical dipole with (auto) adjustable center loading on each leg. 1 inch aluminum tube. Very portable because it doesn't need any support other than the base and it breaks down with thumb screws in to 4 parts. For the most part I don't need a tuner for 40 meters to 6 meters. My favorite setup but I'm always interested in trying other options.

  • @ChaplainDaveSparks
    @ChaplainDaveSparks 14 днів тому

    Man, I get *_”sticker shock”_* every time I shop for ham gear! Even the *USED* items are expensive! I’m sure that Chameleon products are worth it *IF* you have the money, as in _”buy once, cry once”_ .. Still, I sometimes wish there were an equivalent of _Harbor Freight_ for ham gear. I put together my initial _”survival kit”_ from Harbor Freight items. Gradually, I upgraded to better quality items and kept my _budget_ items as backups. *73 de AF6AS in **_“DM13”_** land*

  • @JR-lx8nn
    @JR-lx8nn 18 днів тому

    Measuring the ground radials is not required - the lossy ground below will detune them, which is why you need the antenna tuner. The best research, summarized in the ARRL Antenna Book, indicates you would be better off with x 45 foot radials. My own tests support the research. Look for articles by Rudy Severns, N6LF to support this point. Not that you cannot use measured radials, but they are surely detuned, so use more wire - make them all 45 feet and it works better. Again, my own experience and measurements support this point. Nice video - good luck. Thanks. JT

  • @JR-lx8nn
    @JR-lx8nn 18 днів тому

    keep the details. JT

  • @ve6kk
    @ve6kk 20 днів тому

    Kevin, an excellent overview of the Hustlers and QD2 especially for new hams. And your comments about flexibility are right on; I am changing the mounting I am doing right now. One extremely valuable aspect of your videos is your voice over explanations while pausing for a good video look. I love to screenshot great ideas, saving them with your credits of course. vy 73 Peter PS I have an old Webster Bandspanner to try out too as well as hamsticks. Good fun.

  • @N2NWK
    @N2NWK 22 дні тому

    The Hustler antennas works much better than the Hamsticks. I used Hamsticks for more than 4,000 activation on most of the HF bands. I switched to the Hustlers. 73 de N2NWK, nice video.

  • @nateitkin8279
    @nateitkin8279 24 дні тому

    Big fan of verticals here. I routinely reach Europe with a 20m ham stick in a magnetic mount sitting on a water tank in my yard and 100W. I've even had contacts in Moscow with the water tank special. That half baked set-up has been so successful that my finger is on the trigger to buy a DX commander. 73.

  • @ernstmiller7472
    @ernstmiller7472 25 днів тому

    It is disappointing that I had to search through so many videos to find one for portable mount. Thank you for this clear and detailed overview--just what I was looking for!!😀

  • @micwell2247
    @micwell2247 26 днів тому

    How does it work in 11 Meter/ CB ?

  • @frankartieta4887
    @frankartieta4887 26 днів тому

    Is this comedy ?

  • @CharltonSupporter
    @CharltonSupporter 26 днів тому

    This has given me food for thought. Maybe an option to try for NFD.

  • @toddhowell2299
    @toddhowell2299 26 днів тому

    Mine does the same from time to time, mostly when it's cold. I've had to replace the VFO encoder and that was not as cheap of a part but the hardest part was that the encoder I bought didn't come with the connector, so I had to splice on the old cable. For 3x as much I could have bought a genuine Yaesu part, which was the same exact one I used plus the connector.

  • @W4BIN
    @W4BIN 27 днів тому

    Fielday has always been a contest, among other things. Ron W4BIN

  • @mikeramsey9747
    @mikeramsey9747 27 днів тому

    Why wouldn't you have the feed point down and run the wire end sloping upward or do an inverted L?

  • @nickl3872
    @nickl3872 28 днів тому

    Thanks those are awesome

  • @angelscomputers
    @angelscomputers 28 днів тому

    hahahaha, thats why Ham Radio seems like is designed for retired people. 4 hours setting up an antenna for portable!!!!!! wow, I don't have 4 hours to just play radio! Great build, that for me will be a home base forever installation! By the way, that's the beauty of fan verticals like DX Commander, put it up and no tuning, yes, less bandwidth but no tuning, I personally prefer the no tuning, probably just tap it up with the radio tuner. by the way, the place where you are camping looks amazing!

  • @Carl121354
    @Carl121354 28 днів тому

    Also good to keep unit cooler in the Sun. Black gets so hot in direct sunlight!

    • @hamradiowithkevin
      @hamradiowithkevin 28 днів тому

      There can be crummy tape that get sticky and that stuff is no good.

  • @johnroccaro5491
    @johnroccaro5491 29 днів тому

    Just replace the boring hybrid comfy car with a gutsy buckboard and that antenna issue is solved. As manly as it is Ingenious! Can't wait to tell the XYL!

  • @RebelWithoutFauxPas
    @RebelWithoutFauxPas 29 днів тому

    Kool setup 73

  • @deanheckman908
    @deanheckman908 Місяць тому

    Assembly Video by Doug W2GT I have one of these that Doug built, it's a great tool! ua-cam.com/video/eagrh9v_H78/v-deo.htmlsi=Hzr6JWPxhY_CdSuL

  • @bvds2007
    @bvds2007 Місяць тому

    Great video

  • @Carl121354
    @Carl121354 Місяць тому

    Need to add the third iteration of it…..

  • @samgyupsal6699
    @samgyupsal6699 Місяць тому

    Such beautiful scenery there! What area is this located at? I really liked your video especially all the details!

  • @darrellfreeman3577
    @darrellfreeman3577 Місяць тому

    Nice presentation, really enjoyed it. Just getting back in hobby after 56 years (been in Military Service and State Department.

  • @user-jc6bu3om1x
    @user-jc6bu3om1x Місяць тому

    This is excellent! Just what I needed. Thank you! I'm subbed!

  • @wdfnds
    @wdfnds Місяць тому

    Is that a metal picnic table that you have that antenna setup on?

  • @larserikhinrichsen1511
    @larserikhinrichsen1511 Місяць тому

    maybe it could work in atas-mode ? the ft857 and other models should do, remember to remove the t-bias to run this way.. rgds fm oz1fjb - ou2v

  • @RolftheRed
    @RolftheRed Місяць тому

    Fitting all that into A single Vid. Well Done! DE N2RAG, 73's

  • @mwmc3717
    @mwmc3717 Місяць тому

    Where can you find a 43 foot window washing pole?

    • @hamradiowithkevin
      @hamradiowithkevin Місяць тому

      I contacted window washing companies and asked if they have any out of service or older poles they wanted to get rid of.

  • @Mandarin110631
    @Mandarin110631 Місяць тому

    very cool!

  • @bjmartin5225
    @bjmartin5225 Місяць тому

    Why didn’t you just drill a hole and join them together with a bolt wou don’t have to make them super tight and they will not turn ? Just wondering .

  • @jack-on-the-air
    @jack-on-the-air Місяць тому

    Love the details. With RF, the details (little things?) matter!

  • @straypacket
    @straypacket Місяць тому

    Re: electrical tape. Generic electric tape has a tendency to deteriorate into goo after a while. 3M 33+ tape will not do that, and it has some UV resistance as well.

  • @joefish6091
    @joefish6091 Місяць тому

    Look what they used on large ships in the early days and up to WW2, also on some long wave land stations, they used hexagonal or octagonal clusters of wires in parallel, the wider the antenna element the wider the bandwidth. a cluster of wires simulates a meter plus wide element. A three wire cluster should be quite useful for hobby mobile usage.

  • @kcscarecrow
    @kcscarecrow Місяць тому

    I like field day because we can try out different antennas without nosey neighbors passing judgement or HOA Karens running in.

  • @carl-gunnarhillefors7612
    @carl-gunnarhillefors7612 Місяць тому

    USEING WHAT YOU HAVE AND MAKE G O O D USE OF IT IS A GOOD MANS BEST EFFORT! DO NOT FORGET EARTHLINES FOR 80M 40/15M 20M AND 10 M LOW END AND 10M HIGH END IE THE 10M FM BAND!

  • @vladtepes481
    @vladtepes481 Місяць тому

    For a ground mounted vertical you do not need radials for every band. In this instance 8to16 43 ft radials would do very well. The radiation pattern of single wire verticals varies with the band. If the antenna is electrically too long then low angle radiation is diminished. This antenna will have so-so but very usable performance on 80 and 40. It will have excellent low angle radiation on 20. This antenna will have a lot of high angle radiation on 10m and 15m will suffer a bit. If you use this antenna on 80 through 20 it will be quite serviceable.

  • @jackK5FIT
    @jackK5FIT Місяць тому

    I like building antennas so this is right up my alley. I've had a FT-710 for a couple of months to use as my portable to replace my FT-891. I love the 710. One of my permanent antennas is a DX Commander Classic w/80m. It's been up for 2 years, survived 100mph straight line winds a few months ago, and I've only taken it down twice for routine maintenance. I have limited space for radials so I cut 32 three meter radials 360 degrees around the base. It's a great DX antenna. Although a little noisy I can hear stations with it that I can't hear with any of my other antennas. BTW I run an FTdx-10 in the shack. Thanks for the great video. I like the details.

  • @brianfields4479
    @brianfields4479 Місяць тому

    Thanks for sharing, didn't watch it actually, when you said the bandwidth altered with wire compared to tubing, I was confused, as this should not happen, only loading alters bandwidth. Different lengths of radials is not nessary , it's the amount, unless elevated radials are used. Not sure what's going on there, but something is not right somewhere ! I have tested two verts on 20m, one is wire up to a tree and one is aluminum pole, both 1 . 4 to 1, and exactly the same bandwidth. 73

  • @juststeve7665
    @juststeve7665 Місяць тому

    Good presentation. Thanks K7SWC

  • @FreeStuffGuy916
    @FreeStuffGuy916 Місяць тому

    Great information, Kevin. I made a 7-band homebrew version of the DX Commander and that's what I use for my camping setup for doing POTA particularly the Support Your Parks weekends. It only takes about 15 minutes to setup and teardown and it works great. I only use 20 12 foot radials (4 bundles of 5 wires) and it works great for me. 73 de Bill, N6EF.

    • @hamradiowithkevin
      @hamradiowithkevin Місяць тому

      That sounds really usable and fast to setup Bill. going to have to try build for myself. 73 Kevin

  • @KeepEvery1Guessing
    @KeepEvery1Guessing Місяць тому

    1. The DX Commander works well. With reasonable ground conductivity the radials need not be resonant, and I have good ground conductivity, so I haven't bothered with tuning the radials. If you are in town, however, more of the QRN is vertically polarized, so a vertical picks up a bit more (though maybe the 710's NR will deal with that too). You'll have to check your radio, but both the FT-991A and the FT-891 have an 1/8 " stereo jack on the back labeled ALC/Rem that is normally used with either the remote keypad that you can buy or with an external linear amp (so that the amp can provide ALC voltage to ride herd on the drive level. Presumably at least some YAESU linears includes a tuner (since the 991's internal tuner is not relevant when an amp is in the way), so the second signal on that jack can request a low power CW signal for tuning. I use an LDG Z-11 Pro II which has a jack that provides a suitable signal to drive that low power request when the tuner is tuning, at least as a result of pushing the tune button ON THE TUNER. (The "tuner" option in the radio's deep menu must be set to "LAMP", which is not the default. The necessary signal between the LDG and the YAESU is tip at one end and ring at the other, and a special cable connects only those two pins plus the grounded sleeve. The radio end's plug is red so you know how to plug it in correctly.) If you have that connector on the 710, you could make an external tune button. If you're lucky, it's just a matter of grounding the pin, otherwise there is certainly 12V around that go to a restive voltage divider. It's not as convenient as being able to use the radio's tune button, but it's better than what you've got. If the Chameleon's radio end coupler box doesn't provide such a signal, we can hope that they will add one. (If they're using latching relays, there should be a significant reduction in DC current down the COAX that could signal end of tuning.)