Video

I use spectrum analyser field fox usb anaylser but i canjot seem to locate it close to the house i found it on a mountain top close to my house, but i need a sniffer could you recommend one

Hi is there any sniffer i can use for ham operator to locate 24MHz interference

I want to build the 3 wire version (T3FD). Let's say I use a 1000 ohm termination resistor. There seems to be disagreement about the balun. Can you explain how to choose a balun ratio of 9:1 vs 12:1 vs 16:1?

Good to see you again John! 👍👍👍👍

Interesting to see what your next ones about. Are we talking world ending scenarios?

Nice I like the tune John

Nice to see you back John as to where you’ve been I just thought witness protection haha.

I've used the SE HF-80 and the Plus kit setup including the G90 for over 3 years. I mount mine on an expandable speaker tripod stand so around 2m above ground. I've had excellent results from this setup. I'm mostly CW and have worked the world on 5w. The only niggle I have is the antenna skips the UK (I'm in South Wales) and its rare I get a UK QSO...the rest of the world yes but not the UK. 17m FT8 has been fantastic these last couple of weeks. Good video, 73

Hi John, thanks for the video, just wondering if you have done any simplex at all on the Moonraker LWHF ? I've just got the 20m version & hoping to be put up in the next few weeks, as opposed to being on a fence mine is going to be mounted between the house & rear of garage. M7JTF

How did you fix the 1, 35 metre steel whip at the top? How deep inside? There is no mention in the manual of what to do...maybe for SWR adjustment how?

Sir Paul from sigma comm. told me the plus kit on my 1 kw SF 360 will not take the 500 watts from my three tube 811 amp. Plus kit is good up to 100 watts that’s it. JohnBoyUtah KJ7TBR🇺🇸😎📡🎙

I bought one today, did you ground it the base mast pole whatever?

Friend cannot get it to tune on 10m with the 40m and 80m kit, It tunes all other bands, SWR is 5 on 10m, any advice ?

Less windings on the balun with magnet wire give an improvement on the higher bands. Too much inductance for 10M band.

I built one a few weeks ago, 133ft wire to a 9:1 balun, with about a 17ft wire on the, we'll call it the "negative" side of the balun, & a 50ft coax with a ferrite choke wrapped up in the coax near the radio end. Xiegu g90 tuned it on every band from 160m to 6m. I set it up once as a sloper, & once as an inverted L & made contacts both times. It's long but I wanted to give my radio an opportunity to work on all the possible frequencies. Nano vna showed no resonance anywhere along the frequency range. I'm pretty happy with it.

Can i pick your brains please John, I have the plus kit for my SE HF X 80 up now but can I paint the 40M & 80M hamsticks matt black? or will that affect the signal? ... just trying to stealth the whole antenna ( nosey neighbours etc) thanks Mate!

Hi John whats the natty music playing on the antenna build up 😀😀😀

You still alive? Long time no see.🤠🇦🇺⁷³

This is an UNUN, not a BALUN. Nonetheless, nice work...

Great Ideas for folding antenna mast with locking option .. thanks for pointing this out John. 👍👍👍 I bought a rather large 60m whirly for the back green for my wife last week lo and behold a turned it upside down to fit the stand and ground spike and I had a huge 4 legged antenna stand! all i need was large tent pegs to pin it to the Ground.. and a bit of fabrication with the support pole to allow for the mast. .

25 w maximum sounds right! after all if you take off the casing and look inside its only a small balun!

Great video but is the angle of the plus kit antennas set to a specific angle?

15:40 "There's nothing I know of that can solve this problem." You could use a band-pass filter. (Or just a low-pass filter.) But, much better just to get a better radio.

the second camera angle and focus is bad

Many many thanks for this video.. Ive been using gridtracker for a few weeks now but never changed anything for fear id mess things up.. thank you for explaining how best to use/setup this.. DE M7PGT 👍 73

Thanks. Going to recommend to my clubs. 👍

What angle are the radials. Upward or horizontal thanks

That is the whole idea of these "random" antenna lengths. These lengths are resonant on a frequency, but not on any amateur radio frequency. Therefore, they are not for any particular band. Just put one up and see where it tunes. If your tuner cannot handle the mismatch, use a 9:1 Unun between the antenna and your tuner. For 80m- 10m, try the 71 ft length, it is close to a 1/2 wave on 40m and a 1/4 wave on 80m. Tthis can be deployed as a sloper, inverted V, an L or inverted L, a vertical . . . it is very versatile.

Is the TinySA reliable? I want to make sure that it will last a good while. What attracts me to it is the fact that they are not insanely expensive in the same way that typical spectrum analyzers are. These may be useful for finding unauthorized devices like tracking devices and other bugs. By unauthorized I mean not necessarily illegal but a device that was placed without permission as most tracking devices would be. I imagine the majority of the devices would fall into TinySA's detection range of frequencies. Anything outside of that will need an amplified signal to get too much further especially seeing as how some WiFi does not penetrate walls too well. That is most likely the key reason why many cell phones work at around 900 MHz. Too high and you lose your signal when you go into a building with too much metal or a tunnel. Or if you live in a place where there are a lot of bridges the metal in them may in rare instances cause problems with reception. Now when it comes to blocking a signal I don't just blindly assume that a metal box or piece of foil will stop it from getting out. An example is that I use a Faraday pouch for my key fob so the signal is not always available. One way I test to see if it works is take it into the vehicle _with me_ so I don't lock it in if it works. Then I see if the vehicle will start. It should not start with it in there. Of course I knew it would work because it was designed to do that. Now I did try the metal box and aluminum foil and neither of them worked even the slightest bit. I am slightly annoyed since I wasted a bit of foil that should have been keeping food fresh but I feel good knowing I proved that myth wrong.

how are you ding that with the video? speeding uo between speech.

Nice concept. Can't duplicate it cause your doing everything off camera. Please remake the video for us newbies. Tnx

whats it like for nvis interg on 80?

how about posting the schematic?73.

Thank you for showing and telling other hams about this family of antennas. I agree that what others say about this antenna is very confusing mainly because of the words used like random. Random is a bad word when it comes to this antenna. Just buy one put together and don't worry about the length. Your advice about needing a choke before going into the shack is very important.

Thanks . Very helpful !

Many years ago, I had the Barker and Williamson 90 foot version of this antenna, up horizontally at 40 feet. Though it was rated at 1KW, I occasionally pushed it to 1500 on SSB with an Alpha 87A. (No-tune amp plus no-tune antenna minus an antenna tuner equals minimal effort.) I thought it worked very well on all the HF bands with the exception of 160m. I managed to heat up the once-white termination resistor housing so that it turned brown. Still worked fine. It didn't like 6m, but was oddly happy on 2m. I tried to buy another one but now B and W only makes it with stainless steel wire. The one that I had was Copperweld wire, which they said was no longer available. The stainless one costs a lot.

New sub John ..keep up the good work ! 73s M7CYC

Interesting video and great results 👍🏼 Might try one of these. I made my own EFW antenna last week, I used one of those ‘green’ numbers on the link you looked at (41feet) that fits nicely into the garden. The 9:1 balun was something I previously had for shortwave listening and I took a ground to a copper rod in the soil. Had some good results in Europe on SSB but nothing further and it tunes down to 40m with the transceiver ATU. Best results on 15m. I’d like to try a dipole but too inconvenient getting a centre support up in the middle of the garden. Anyway, if I try this Moonraker version I’ll report back if there is any improvement on what I am using.

Neden alt yazılarda türkçe yok

HOPEFULLY ILL GET THIS GOING IN A FEW MONTHS

when I hit monitor, I don't get any stations. at least your video started with that. Now I need to know why its not working.

And I thought the Southern US talked slow!

well then it should not have a FCC ID, yet it has , which is 2AZSA-RT490

I don't have 8 pin mini DIN cable. Can you tell me the pin out on it please? Is it a straight though cable? I found the pin out for the G90 but not for the C-19. Is it a cable used on other equipment?

Amazing - I might get one if it really is that easy. Purely for RX. Have you tried it on 27mhz and how does it perform?

I’d love to see the antenna configuration mounted.

Ok...mr

The power rating is 400w....it was the last item listed, a little below the wire length

Are you still using this antenna? I have the X80 with the plus kit and thinking about putting it up now the solar cycle has kicked in and the better weather is here. I plan on mounting it about 4 metres high with a short run to the shack.