Excellent explanation, making these topics easy to understand. Also, good pleasant voicing and communication skills.
@lianalehua7424
4 жыл бұрын
Thank you for an easy to understand explanation and practical demonstration. I have watched so many people talking about what "should" happen with no examples. Your approach is the most helpful I've found. Subscribed. Thanks again.
@MikeM0XMX
4 жыл бұрын
Thank you for your kind comments. Glad to help.
@joflem123
2 жыл бұрын
I am new so thank you for this video.
@Ploggy.
4 жыл бұрын
Great information thanks for posting 👍
@MikeM0XMX
4 жыл бұрын
Thanks for the comment. 73 & Stay Safe.
@LB7VI
4 жыл бұрын
Very nice Video and good explanation to all new folks who is on the way to start up they're hobby with us in the future to come :) 73s LB7VI
@MikeM0XMX
4 жыл бұрын
Thanks 👍
@mashim8355
3 жыл бұрын
Thanks for your explanation
@johnishikawa2200
Жыл бұрын
So then there's basically two ways to check if you're antenna system is resonant at the driving frequency. You can use an SWR meter, in line between the rig - or xmitter - and the antenna, or you can connect the antenna to that antenna checker gadget and see if the antenna is resonant without hitting it with rf power from the rig. So then you use that second device in order to first make sure that the antenna is close enough to resonance before connecting the rig to it and risk damaging your transceiver. Right?
@MikeM0XMX
Жыл бұрын
Basically yes.
@johnishikawa2200
Жыл бұрын
I wish I knew about this before I blew up my linear amplifier years ago.
@jlocana1
3 жыл бұрын
thanks
@hubzcaps
4 жыл бұрын
I subbd. Mike here restoreing a classic siltronix 1011D ordered some good cables a whip resonant on 27mhz..looking in to swr meter for research and power losses
@MikeM0XMX
4 жыл бұрын
Thanks, good luck
@dylanschulz2404
4 жыл бұрын
Great video. How has the FT-991A been for reliability? I'm thinking this would be a great do all radio!
@davel831
4 жыл бұрын
What if it is below 50ohms would that make a difference to performance
@MikeM0XMX
4 жыл бұрын
On its own thats not that important. The SWR is a good enough measure to guage the match.
@davel831
4 жыл бұрын
Ham Radio VLOG Ok so what if I had a swr of 1-1.5 and ohms of 34
@MikeM0XMX
4 жыл бұрын
@@davel831 Focus on the SWR. You may see on some of my videos the SWR is fine but the Impedence isnt what you would normally expect. Also check all your connectors etc just in case.
@ox6466
3 жыл бұрын
Both impedance AND reactance DOES make a difference in antenna performance. It's not a show stopper if these two aren't perfect. In fact you may not notice any difference or any major impact in communications. However if either impedance is far off 50 ohms and/or reactance is significantly off zero, performance will suffer and can possibly damage your transmitter or reduce the life of it amongst other potential problems. SWR 1.1 (50 ohms impedance) is not the only factor, but the resonance of the antenna dictated by having 0 reactance. This particular analyzer the author is using was not displaying the reactance. I'm not sure if that particular unit this was switched off or if the analyzer didn't have that feature, but you need to be able to see the impedance and resonance when tuning an antenna. You want to achieve BOTH close to 50 ohms AND close to 0 reactance as possible to have the best performance from an antenna (if building your own or modifying the performance). Many mobile antennas will generally exhibit a lower impedance due to the design to be used on vehicles which is why they also are very poor in performance compared to base antennas such as quarter wave ground planes, which can generally be designed to run much closer to 50 ohms with 0 reactance. So it wont be uncommon to see varying results and measurements.
@cthoadmin7458
4 жыл бұрын
Where did you get the LiFePo battery from, and how much was it? 73 VK4QP
Interesting. I've recently been informed that end fed's perform better with the feed point in the air as opposed to on the ground, Chameleon Antenna's advice, I have it in a recent email from them. Have you tried this?
@MikeM0XMX
4 жыл бұрын
Interesting. I will try that
@tf7274
4 жыл бұрын
I have a $500 mfj analyzer...i bought it to make antennas. I use 10% of what it can do. But it does 100% of what I need it for...if your only into CB; buy a $50 swr meter.
@MikeM0XMX
4 жыл бұрын
Very true
@dx398
3 жыл бұрын
Wouldn't an antenna tuner negate the need to cut the wire ?
@MikeM0XMX
3 жыл бұрын
LOL.
@nathalieg21
3 жыл бұрын
Sorry, no emphasis on Radiating Resistance / Resonance? Good Video for someone getting into CB Radio but then again it can be helpful to some hams.
@MikeM0XMX
3 жыл бұрын
There's always somebody that wants to show they know it all! Do you not understand the word BASIC!!
@hubzcaps
4 жыл бұрын
Oh yhea and that expensive 12 pin jones power cable O.O
@rodschultz5311
3 жыл бұрын
I don’t care what you did last time I tuned in to see what you were doing this time get it together
Пікірлер: 34