BTECH DMR-6X2 Digital HAM Radio Antenna Testing - TheSmokinApe
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- Опубліковано 28 лип 2024
- BTECH DMR-6X2 Antenna Testing - TheSmokinApe
Just a quick video showing some power tests and some SWR test for the BTECH DMR-6X2 Digital HAM Radio.
Check out my BTECH DMR-6X2 Playlist: • BETCH DMR-6X2 Playlist
Check out my HAM Radio, Scanner, Walkie Talkie Playlist: • HAM Radio, Scanning an...
BTECH DMR-6X2: www.amazon.com/BTECH-DMR-6X2-...
SWR Meter: www.amazon.com/Signstek-Profe...
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TheSmokinApe
Anybody else notice the audio CLICK heard in the video when he keys up on UHF with stock antenna?
Nice testing! I have a similar meter, it's a Micronta...something...That second antenna...made from Nitinol? We use it at work for some antenna ground plane purposes...just curious as we have some thin stiff like that antenna that you can tie in a know and it doesn't bend, kink, warp...etc
I’m not sure what it is, but I get nervous it will poke me in the eye. The meter seems to work well but the adapters are a bit of a nuance, not sure how it could be avoided. As always, thanks for watching...
yeah, those long flimsy antennas are a bit "sketchy" as far as eye safety is concerned! Adapters...yeah, necessary at times, but kludgy....
I’m enjoying the radio and the DMR aspect but I had to buy a DMR hot spot (video pending) because I couldn’t TX and hit the “local” DMR repeaters consistently. So that would add ~$110 to the price of entry. Also, it makes DMR kinda feel like an internet protocol of that makes sense.
I need to read up on the whole DMR thing, but yeah, I get what you are saying. I've seen some of the vids on using reflectors, etc..and thought...nah...not my thing.
I have an Open Spot on order because I am on the fringe of my digital repeater and get dropped on occasion. The added advantage of using an Open Spot, Hot Spot, etc., is many more Talk Groups will be available than those provided by my local DMR repeater
Hi, really interesting, just wondering what a "Digital" SWR meter is, this must be a new invention I guess...?
This meter is for measuring an analog signal which is a continuous sound. It’s my understanding that a different meter is needed for the digital signal which pulses.
I'm assuming the device changes the bands automatically?
Do you mean the meter? It’s vhf/uhf
For more accurate power measurements you really would want to use a dummy load instead of an antenna.
Agreed, thanks for the comment.
Don't you have to set the meter for each power setting. Or maybe it's automatic. David Byrd KN4BHS
It has three power settings; 15w, 60w and 200w. I left it on 15w for this video as the radio can’t go above that. Hope that helps...
@@TheSmokinApe I think the SWR should be the same for all the power levels since its a ration of forward and return power.
That very high power may be trash, not filtered good!
Could be. I will do a video of it hooked up to the RF Lie Detector 👍
If you are going to claim that meter is high quality then why do professional service technitions use Bird meters.
I was being sarcastic.
The Standing Wave Ratio does not change with the power output of the radio!!! This speaks to the quality of the meter that you are as not being accurate! Just because you increased the power output the SWR would not change, what logic are you using here to think that it would?
I didn’t expect it would with this HT but I have seen it happen before on mobile radio installations.
@@TheSmokinApe I'm confused here, are you a licensed ham radio operator?
Mike B aka The Drone Ranger I am
@@TheSmokinApe Don't get me wrong as I'm not trying to be a smartass but how did you pass your test if you don't understand the simple electronic theory behind the resonance of an antenna? The power output of a transmitter is not going to change the SWR if it is as low as a 1/4 watt to a 1,000 watts. If the antenna is resonant on a certain frequency that does not change whether or not it's a hand held, mobile or a station antenna because of the amount of power being sent to it! The only way I have ever seen such a thing was when the antenna was being driven with more power than it could handle and started to melt and expand thus changing the resonance of the antenna!
Now I totally understand that the meter doesn't atleast that I see have a way to calibrate it and that is more than likely the problem you are seeing with the different SWR's. That simply speaks to the quality of the meter itself and at best it's reading are only going to be reference but with you making those statements that the SWR is actually changing with the power output changing simply does nothing more than prove you don't know what you talking about and providing misinformation to the public!
My intentions are that I don't want you to continue to embarrass yourself and I don't want misinformation being spread so that the next person uses this video as a reference thinking that an antenna can change it's Standing Wave Ratio when nothing has changed to effect it to do so!
I passed the test by passing the test.
Like I mentioned I have seen SWR change with increasing power. Perhaps it was a problem with the transmission line or in this case with the adapters or as you mentioned the meter.
In any event I’m not embarrassed, the point of my videos is to document an example or experience and then have a conversation.