VAS 433MHz Diamond extreme range hack
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- เผยแพร่เมื่อ 1 ม.ค. 2019
- In this video I convert a 433MHz Diamond antenna into a 2 element Yagi directional antenna. This modification takes 3 minutes to complete and is very effective at boosting your range.
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Yagis are really a good way to boost forward gain & reception. Back in the days of Packet Radio (sort of internet/email via amateur radio, usually on 144mhz, 220mhz & 440mhz), I had some really high gain yagis .. 15 elements on 220mhz, and a pair of 'stacked' 11 element yagis on 144 mhz. I needed all this gain, as my Packet 'Node' was a transfer point of data between Cleveland (OH) and Erie (PA) .. a distance of 90 miles from each other, and I was right between them. Stations in Cleve. could 'digi-peat' thru my Node to Erie (and vice/versa). I also used these antennas to make Packet Radio contacts with SkyLab, Mir and ISS. Those were fun times. Now I have to go look for my "QSL" cards that I got back from those space stations. Keep on experimenting!
Where have you been, I am a new subscriber and I am really finding your channel" what I been looking for "ty
Great Alex !!!
Excellent demostration, super understandable.
Thanks
Fantastic, physics never ceases to amaze.
Is this possible with the Diamond 986mhz antenna, if so, what length would the wire be reflecting the signal please.
Love your channel!!!!!
Just what I asked you yesterday. THANK YOU !!! :)
2:13 electrical tape and popsicle sticks.
Refined physics in Action.
Good one. Lovin it.
The Wizard strikes again ^^ Happy New Year :-)
Nice, simple and crazy! Thanks a lot!
You're the man Alex!
Thanx, but I still haven’t maxed out the stock Diamond yet. And happy new year.
Thanks for the video. Great info.
An off topic question. I'm thinking of going over to nice dipoles for the airborne side of my stuff that flies on 1.3. Am I correct in thinking my mad mushroom is still the best way to receive that in an omnidirectional fashion?
Really cool. Great information.
Mad Scientist at it again...🤘😎🤘
👍👍👍👏👏👏👏👏 Great you are a good man , God bless you .
👍👏 ,what would be the performance with a liquid metal antenna (mercury) ?
nice, will this work on the moxon?
Very interesting!
Would like to see you place a parasitic director element in front of the diamond antenna and see how much the gain increase is and how it effects the beam width in conjunction with the reflector parasitic element.
It would need to be smaller. Probably 11.75" if I had to guess. I could be done, though.
Hey Alex, what would happen if You measured the antenna gain with a radio behind it? We were tuning a moxon and realised that if the antenna is placed where it usually is on Taranis X9D - in front of module bay....it slightly de-tunes. Have You noticed this?
I haven't seen any detuning worth noting. You might get a small change in gain, but it should be minimal.
What is the final gain with this mod? Does this end up with more gain than the moxon?
Does multipathing affect measurements?
Nice thing but can you test a half wave helical antenna at transmitter and at receiver put half wave dipole antenna ant test the results please. Thankyou
Alex in your opinion what is the best TX antenna? I have a SRH771 at moment and nothing wrong with it, but I've seen people use this diamond antenna and a dipole and yeah just curious if its a improvement
I used to use the SRH771 until the Diamond was designed. Now I fly the Diamond exclusively. My RSSI is much better.
@@CAGreve1231 Thanks mate, is it worth doing the Yagi mod for general flying? I'll be honest I haven't delved very far into 433 yet, either way I'm going to be ordering a specter and chimera hd from stoneblue so I'll add a diamond too order
you really dont seem crazee even after all that RF
can this antenna attached with crosffire ?
I B Crazy makin me YAGI Crazy! (sorry... caught me in a mood)
What kind of wire? The material?
Do you have a antenna that can cancel out my g/f complaining?
The imrc ezuhf beast tx says this is overkill! It talks to me sometimes
Is it possible to add more elements to further increase the effective range? I'm trying to get at least 10 km with this.
Yes, but the distances between them are going to be different.
@@CAGreve1231 Thanks for the reply! Do you know of any resources out there that could help me find the correct distances and lengths of the wires?
@@Metalmanic2345 - You need software to do that. You can find some Yagi antenna calculators online, but they are not very accurate.
👍 👍
In 2019, Alex "IBCrazy" Greve is a RF hacker activist lol
Any benefit to do this on a VAS Moxon?
No. The Moxon has a built-in reflector. However, you could make an additional director in front of it if you wanted.
@@CAGreve1231 Check! Thanks ✌
And again, no free lunch here... Only 75% more range.
88% actually... but that's dead center on the beam.
Alex needs a 3d printer.
I have a 3D printer. The point of this is simplicity, not making it look good ;)
@@CAGreve1231 It was a joke. Seriously though, at this point, it's almost as easy to print up a piece that snaps to the antenna and instantly changes the diamond to a yagi. You could also sell them....
@@scottyh72 - I designed something better already ;)
@@vasprofessional1094 I have no doubt. Happy New Year!
You do realize that only Liberia, Myanmar and USA uses non metric systems? You're limiting your viewership reach (no pun intended)!