Thank you once again, just bought one of these in A1 condition to run with my ts-850s which as you know has an auto tune, but I like buttons and switches (call me old fashion), your video yet again is a good refresher learning curve.

@timg5tm941

6 ай бұрын

Thank you and enjoy a great tuner

Very good - thank you. I may be mistaken but I think you should have done the calibration step first - If I am wrong then please put me right! I think this is done by setting the fwd/rev switch to forward and then transmitting a weak(ish) signal - just enough power to drive the meter to around fsd signal; I use a CW signal. Ensure that the dial reads at full scale deflection by adjusting the 'cal' knob. The dial is then calibrated. Then switch to rev and carry out the procedures as shown in the video.

Hello Tim.......... I do enjoy your video's ..But I am sorry to say that how you tuned that AT230 was wrong........It's Band than , FWD and set the Cal than REF and than you adjust the R Tune and X tune....73s

Thank you! Very helpful.

Another very informative and useful presentation

@timg5tm941

2 жыл бұрын

Thank you!

I use a low cost Zetagi atu (£15 from eBay) for the 11meter CB band and have just bought a second hand Global ATU1000 for other bands when I get my Foundation licence. Good to see that my trial and error has produced the correct operating procedure and that my impoverished budget has not been wasted :-) . 73's

@timg5tm941

3 жыл бұрын

Nice one and good luck with the foundation 👍👍

Thank you. I bought AT230 also for my TS820. At first I tune AT230 by RX for max signal... 73! OH1XE

@timg5tm941

2 жыл бұрын

Thanks for the information 73

Great Vid as always Tim, Happy New Year to you & yours 73s 👍

@timg5tm941

3 жыл бұрын

Thanks Jason and to you and yours too 73

I always do CAL first, then SWR matching. Power checking I do last.

Great video tim very informative, all the best to you and yours mate

@timg5tm941

3 жыл бұрын

You too sir! 73

Great vid Tim, appreciated 😎

@timg5tm941

3 жыл бұрын

Thanks!

Rhat is a beautiful tuner....Thanks for the info...

@timg5tm941

6 ай бұрын

Pleasure!

Lovely tuner Tim. I like the Yaesu FC-102 too....similar design, but rare.

@timg5tm941

3 жыл бұрын

Yes and bomb proof

hi, good video well explained, i have one built in my Icom ic 7300, but good to know, thanks from Rotterdam.

@timg5tm941

3 жыл бұрын

Thanks 👍

Nice one, Tim 👍

@timg5tm941

3 жыл бұрын

Thanks Mick 👍👍

Hi Tim, I don't think I've never seen a manual AT 'how to' video, so thank you. I would agree though to tune for max noise in receive first. As an 'old timer' now I'd recommend any new licencee get a cross needle SWR meter - it might cost a bit more but is worth it. Some HF tuners have them built in. Also some tuners (QRP) can use a resistive bridge network for SWR indication/ tuning. This protects the transmitter against high VSWR damage as the worst it would ever see is 3:1. 73 G0JLF.

@timg5tm941

3 жыл бұрын

Thanks 👍👍

R is impedance Tim. I like the T match. I use with an antenna analyser that displays R and X...and then SWR. I use a variety of rigs some of which have a 72 ohm output....others have the standard 50 ohm. I can tune for resonance (X) = 0 with a very wide range of input impedance (R). Clearly the SWR meter I have needs to be switchable between 72 and 50 ohm for accuracy.

Great informative video Tim and many thanks. This past year has almost halted any learning because of the pandemic..so thanks for people like yourself. Stay Safe, Well and have a Happy New Year. . Dafydd M6ULU

@timg5tm941

3 жыл бұрын

Thank you Dafydd I hope you have a great 2021 73

Great Video Tim, Get a picture on that wall !!!!! 73

@timg5tm941

3 жыл бұрын

Thanks and I will! 👍

Very informative video cheers Tim , as a Foundation operator if I may ask a question . For a swr meter to show reflected power , Does the meter have to be calibrated as you would checking the swr , or does the reflected power just move to the position regardless using the calibration knob cheers

Good Bit of Kit that ATU..

@timg5tm941

3 жыл бұрын

Thanks Mike its just a little shame it isn’t a balanced tuner but works well for a 40 yr old tuner

Not sure why you got thumbs down, anyway a good video happy new year !

@timg5tm941

3 жыл бұрын

Thanks!!

very nice video - i was taught on my foundation licence on the principals behind a manual ATU and how to use it, was very interesting, nice to watch again. Do you have/need an artificial ground where you are ? I use one and I think its somewhat overlooked aspect of RF earthing for people that cant earth to an actual ground, and uses similar principals to the manual ATU.

@timg5tm941

3 жыл бұрын

I don’t use a ground (I know.. naughty!)

Great video, would you need to match the antenna every time you move frequency? What frequency would you recommend to use for each hf band ? 73's

@timg5tm941

3 жыл бұрын

Yes you need to re-tune when you move bands and sometimes when you move frequency within a band. As for the frequency - it really depends on the mode you are using (data, cw or voice). 73

Quality atu that AT230, had one years ago, sold it, wish I hadn't!

@timg5tm941

3 жыл бұрын

Bomb proof!!

Thank you. I would have been handy for me, as a new Foundation licence person, to see your actual connections to the antenna and radio. Please excuse me, I am from Merthyr Tydfil and most here still use two cans and a length of string. :)

@timg5tm941

3 жыл бұрын

Nigel not a problem. If you email me (see my QRZ profile), I’ll be happy to share details with you. 73

Glad my MFJ TUNER is a whole lot easier to manage, but good demo OM.......love to know how you obtained a G5 two letter call......congratulations!

@timg5tm941

3 жыл бұрын

Hi Rod, thanks. I passed my full last year and applied for a short call. I think they’ve stopped that now. 73

@rodwilkinson3304

3 жыл бұрын

Well done Tim, that certainly surprises me, must have caught Ofcom on a good day......73 es HNY de G3TXA

@timg5tm941

3 жыл бұрын

@@rodwilkinson3304 it was a short lived window but there’s a few of us who passed at that time who have got a short call. Happy new year. 73

SWR is of course a ratio of forward power to Reflected power , I would want to look at the forward power as well as the reverse power levels when checking SWR match. It is possible to get a match but the antenna is so poor that your initial 100w is for example now only 50w as the efficiancy of the antenna is so poor. Would you still be happy to use that antenna just because it shows a good SWR ?

Always tune on low power but listen first to check the frequency is clear then recheck tuning and swr if change frequency or tx power

@timg5tm941

3 жыл бұрын

Thanks 👍

Is that the AT-230 I missed on by a couple of days at Nevada recently by any chance?!

@timg5tm941

3 жыл бұрын

Ah no Stu this was an eBay purchase

You corrected yourself, you "Matched" the Aerial/Antenna and not tuned it. Nice one.

@timg5tm941

3 жыл бұрын

It is so easy to say. 73 Bob and happy new year!

@Pioneer936

3 жыл бұрын

To some its known as an antenna system tuning unit ASTU, 🤔

Hello Tim! A question when you have a moment. Does the AT-230 require any power to operate? I have one connected to my TS-820s, but nothing happens. Interior looks like it came from the factory, but I cannot get it to do anything. Any thoughts would be appreciated. Thanks!

@timg5tm941

2 жыл бұрын

Hi Paul - no DC power just RF from the radio.

@backpages1

2 жыл бұрын

@@timg5tm941 Thank you kindly sir!

👍👏👏

Is the FWD/REFlected switch redundant on that tuner?...

@timg5tm941

3 жыл бұрын

No just furloughed

Ok so I've got an antenna tuner, my Yaesu FT450D has an atu built in but it won't tune my end fed on all the bands I want it to, hence the new antenna tuner. Now, my radio has a safety device which means the radio won't transmit when the SWR is bad, but I will need to switch this off if I'm to transmit and set up the atu. If I'm incorrect in any of the above then please feel free to comment below, also, does anybody know how I can get my radio to transmit on the lowest power possible so I can set the atu? Thanks in advance, Steve MM7STT PS I'm a newbie so please be gentle with me if I'm being awfully stupid

@timg5tm941

3 жыл бұрын

No problem. I think the radio should still tx but will fold back the power to protect the radio. Try it and see. Welcome to the hobby and never be afraid to ask questions 👍👍 73

Im looking at an at230 now

None of my tuners have bands on them.