Nagoya UT-72 dual-band mobile antenna SWR test

  Рет қаралды 17,520

Soladaddy

Soladaddy

Күн бұрын

Пікірлер: 73
@SK-rj1ti
@SK-rj1ti 8 ай бұрын
I have the GMRS/MURS version of this antenna. The way I understand it, it is not intended to compete with well-tuned big antennas. I think of it as a reasonably good antenna that you can quickly mount on the roof of your car, connect it to your HT, and it will improve your HT's performance relative to a rubber duck inside the car. For example, when talking to your friends while caravanning. The antenna is pretty stylish and unnoticeable, especially when people walk around with their eyes glued to their phones.
@Soladaddy
@Soladaddy 8 ай бұрын
Rather spot on. It's a HT antenna upgrade that has a wide frequency footprint.
@photolabguy
@photolabguy 3 жыл бұрын
I have this same antenna. I absolutely love it. I don't have a SWR meter, so it's nice to see those results.
@Soladaddy
@Soladaddy 3 жыл бұрын
It's a nice little SUV of mobile antennas.
@Jimbo_Conn
@Jimbo_Conn 2 жыл бұрын
i just got one. what does 1:5:1 ratio mean and how do i find that out without a meter. is it safe for my HT? im brand new btw, you can probably tell. any input is appreciated thank you .
@David-bg3ct
@David-bg3ct Жыл бұрын
@@Jimbo_Conn It's safe but you want a low SWR reading. The lower the better because it sends more signal to the Antenna.
@TELEVISIONARCHIVES
@TELEVISIONARCHIVES 2 жыл бұрын
One of the best Antennas I've ever owned. Got the same numbers with mine
@kingduckford
@kingduckford 3 жыл бұрын
I would be highly suspicious of these numbers. Flat 1:1 SWR throughout the band is usually indicative of meter fault or other trouble, not of a "perfect" antenna. Notice how the "power out" numbers change in the band, yet the reflected power always reads zero? Something might not be adding up.
@Soladaddy
@Soladaddy 3 жыл бұрын
It matches the numbers Nagoya claims, but yeah, I wonder how they make it that broad. I suspect performance took a hit. The Comet CA-2x4SR is another broad-band dual-band, but it performs rather well.
@SlyGuy2000
@SlyGuy2000 2 жыл бұрын
I love that antenna, use it for gmrs on the trunklid of my 2011 Corolla S. Works nicely, extremely better than the quarter wave rubber ducky on the HT
@Soladaddy
@Soladaddy 2 жыл бұрын
Definitely an upgrade over a stock HT antenna.
@SumOneSomewhere
@SumOneSomewhere 6 ай бұрын
Bought this antenna with an anytone mobile radio so I can start weather spotting with some of the guys at the radio club. I went with this combo because this is probably the only times I’d ever use it. Hopefully it does ok
@HIBAW
@HIBAW 3 жыл бұрын
I literally ordered this about twenty minutes ago. Then found your video. Nice timing :) It was helpful.
@colecole3352
@colecole3352 3 жыл бұрын
I did also. Except when I got it. It worked no better than the antenna I already had.
@Maverick-g7o
@Maverick-g7o Ай бұрын
I ordered this today and just found this video tonight so I’m happy and I can’t wait until Wednesday when it arrives. I’m so excited.
@ken-NC
@ken-NC 3 жыл бұрын
I ordered one also. Should be here today. My F150 has an aluminum body so I had to order an adhesive metal pad for the magnetic mount to attach :-) Good video! Thanks.
@Soladaddy
@Soladaddy 3 жыл бұрын
The new Ford truck bodies are creating a hurdle for radio. Thanks for watching.
@adlucem9845
@adlucem9845 2 жыл бұрын
Have UT-72 for 6 months. Picked up used Diamond MR-77 for $12. Diamond blows it away.
@Soladaddy
@Soladaddy 2 жыл бұрын
I bet. Nagoya started off by making clones of Diamond antennas. They copied the model numbers, packaging, font, colors and style. Have a 20+ year old Diamond X-200A still in operation.
@v0n1b0
@v0n1b0 5 ай бұрын
Link to "$12" MR-77?
@NaturesChild
@NaturesChild 3 жыл бұрын
I just returned one today. 70 cm was just ok with SWR ranging from 1.36 to 1.41 and 42.7 ohms to 49.5 ohms. 2 meters was crap with SWR ranging from 3.2 to 2.67 and 35.4 ohms to 21.3 ohms, geez. I used a NanoVNA. Do not believe your SWR readings. It makes a good antenna for listening to trains though haha, I saw 161MHz with SWR 1.13 at 56.7 ohms to 167.9MHz with SWR 1.12 at 54.4 ohms. But I don't listen to trains!
@Soladaddy
@Soladaddy 3 жыл бұрын
I ended up giving it to a new ham who ran it through a car wash so it's no longer in operation.
@mararevalo9491
@mararevalo9491 2 жыл бұрын
Its hard to find that kind here in the Philippines, hoping to have one. Thanks for the review
@Soladaddy
@Soladaddy 2 жыл бұрын
There's other options like the Tram 1181, needs an NMO mount. amzn.to/3EmnSs3. There are many antennas that can cover 450-470Mhz.
@donnakano282
@donnakano282 3 жыл бұрын
Interesting about the SWR, but a 50 Ohm resistor also has a wideband flat SWR. The SWR did not appear to follow a typical curve.
@Soladaddy
@Soladaddy 3 жыл бұрын
lol, this is true. I may need to try a performance test at some point
@donnakano282
@donnakano282 3 жыл бұрын
The best would be a hemispherical field strength measurement, but even when I had access to a service monitor I couldn’t make that measurement.
@Soladaddy
@Soladaddy 3 жыл бұрын
Not that kind of test. I only have a couple of power/SWR meters. It would be a generic comparison using the ear meter.
@martyisabeliever
@martyisabeliever Жыл бұрын
Thanks man!
@AncestorTheUnstoppable
@AncestorTheUnstoppable Жыл бұрын
I've bought the same antenna to pair with Baofeng UV5R, but the radio stays silent. What could be the issue? Any solution will be appreciated.
@Soladaddy
@Soladaddy Жыл бұрын
Do the radios work with the stock antennas?
@SecretMan299
@SecretMan299 8 ай бұрын
good day,... most of my family i let them used WLAN which most of the freq. is 450.000,... my concern in my bravo mobile is it ok to used a nagoya UT-72 or should i get the nagoya UT-72G, aslo in my country the nagoya UT-72 is available and the UT72G is not... what would be your advise. thanks
@Soladaddy
@Soladaddy 8 ай бұрын
If using 450 MHz the UT-72 might be better suited over the UT-72G. If its only using 450 MHz, there are better antennas like the Browning BR-450. Its taller and needs a cable/mount, but will have better transmit and receive. amzn.to/3OM2eCk
@jamescopeland5358
@jamescopeland5358 3 жыл бұрын
Great information
@ivanmendoza2704
@ivanmendoza2704 2 жыл бұрын
can it be hooked up to a Baofeng BF-F8HP directly?
@Soladaddy
@Soladaddy 2 жыл бұрын
Mine came with an adaptor that allows HTs with a male SMA jack (what Baofeng uses) to connect.
@jerrymoutelik619
@jerrymoutelik619 3 жыл бұрын
I suggest you try a different SWR Meter. This one is showing total impossibility!
@Soladaddy
@Soladaddy 3 жыл бұрын
I sold this antenna so can no longer test, but the meter can show a high SWR when present like 50:1 here kzbin.info/www/bejne/hWrOfal-n6xoqc0
@eijentwun5509
@eijentwun5509 3 жыл бұрын
@@Soladaddy Why did you sell it?
@eijentwun5509
@eijentwun5509 3 жыл бұрын
User: Notarubicon here on KZbin compared it in a real world test to other GMRS antenna's and it performed the Best.... so I dunno.
@FoxtrotGear
@FoxtrotGear 2 жыл бұрын
Can you use this antenna without the magnetic mount? I have a CB radio antenna on my truck mirror. I like to reuse the truck mount with this antenna but wasn't sure what it can screw to.
@Soladaddy
@Soladaddy 2 жыл бұрын
It has a non-standard threaded base and from what I recall it was smaller than what CB normally uses, the 3/8" x 24. For GMRS I'd use a NMO mount because there's many antenna and mount options.
@eijentwun5509
@eijentwun5509 3 жыл бұрын
Don't You Mean the Nagoya UT-72-G
@Soladaddy
@Soladaddy 3 жыл бұрын
This one is a plain UT-72.
@2023Red
@2023Red 2 жыл бұрын
Will this antenna provide acceptable transmit and receive inside the van itelf? Or inside the garage? I am thinking about getting one for my GRMS. Thanks.
@Soladaddy
@Soladaddy 2 жыл бұрын
In short, no. This antenna needs to be connected to metal to complete the antenna system. Ideally, flat metal with 7 or more inches of metal in all directions. Also, a vehicle's metal will block RF so having it inside will hinder the performance. Outside would be much better. If the antenna is too tall, I'd opt for a small antenna outside vs larger inside. For GMRS antennas can get small. I just finished trimming a 5/8 (video coming soon) and its 14" tall. A 1/4 wave can be 6-7" tall.
@sumbigch
@sumbigch Жыл бұрын
This antenna has a tiny wire running through the "spring". That tiny wire is all that connects the threaded part to the straight antenna at the top. If you take a multimeter and test the continuity between the top and the female threads while wiggling/bending that spring you will see it's junk. The wire I'm talking about is shrouded by that "loading coil" lmao. When the spring bends it loses connection as it's not actually connected. That little wire makes contact and as we all know brass oxidizes... Worthless antenna in my opinion. I own one and don't trust 5w on this let alone 50. *This has nothing to do with the base or the 90 it screws onto. I am referring to the actual antenna here. To test this I removed the cap, scratched of a little paint since it's under cap and put one lead on that bare metal, one lead in the threads. Got the continuity tone without flexing or bending, as soon as I started to flex... No bueno. You really have to look to see but inside that spring is a tiny tiny wire with a flat loop shape that makes contact with the antenna. No solder just loose wire that jams against the antenna. It makes no sense that the bare clean threads aren't actually attached to the spring which would then be connected to the straight antenna via some weld or braze...
@Soladaddy
@Soladaddy Жыл бұрын
Interesting find. Almost wish I still had it to inspect. Ended up giving it to a new ham who ran it through a car wash a week later, so it had a short life.
@akblair3862
@akblair3862 3 жыл бұрын
Nice test. We’re the upper numbers on your meter the watts out ?
@Soladaddy
@Soladaddy 3 жыл бұрын
Yes, the top is power out, lower right SWR and lower left is reflected power.
@teo2975
@teo2975 3 жыл бұрын
Not bad on basic tests for $23, flimsy. Dont forget to put it on camelcamelcamel so you can get it on decreases in price. as it has a "superloading coil" (lol) Id like to see it without ground plane
@Soladaddy
@Soladaddy 3 жыл бұрын
Thanks for the tip. Since its a 1/4 and 5/8 wave element, it will need a ground plane.
@benwright7337
@benwright7337 3 жыл бұрын
I bought this Nagoya UT-72 a few days ago. My Nagoya 771 seems to have better performance with my BF-F8HP. Not sure what the problem is. Any suggestions? I mounted dead center on top of my vehicle.
@Soladaddy
@Soladaddy 3 жыл бұрын
Make sure the cables connections are tight. The SO to SMA adapter that comes with it could be of better quality so double check it's connectors. Performance wise it's not much more than the 771 if its outside and at the same height. It should be much better compared to the 771 inside the vehicle. Which frequencies?
@benwright7337
@benwright7337 3 жыл бұрын
@@Soladaddy The adapter it came with might be trash. Ive tried FRS, 2M, 70CM. Performance is lacking compared to the 771. Im going to put an SWR meter on it and see what it reads.'
@benwright7337
@benwright7337 3 жыл бұрын
@@Soladaddy I bought it for the purpose of using in the vehicle. But, Ive noticed that the baofeng doesnt TX/RX well when in motion. Might be a waste of money.
@Soladaddy
@Soladaddy 3 жыл бұрын
@@benwright7337 They do not have the best receivers, guess that helps explain the low prices. I use adaptors with RG-58 because the RG-316, 174 and other small stuff seem too fragile.
@benwright7337
@benwright7337 3 жыл бұрын
@@Soladaddy I ordered a non pigtail SMA adapter. Will see if it makes a difference.
@SuAmigoElilegal
@SuAmigoElilegal 3 жыл бұрын
Hey have u heard about rt97 portable repeater or have any advice on making a home portable repeater
@Soladaddy
@Soladaddy 3 жыл бұрын
I have seen the RT97 and it looks nice. I made a simplex repeater and its fun to use and can be a testing assistant. I chose the Argent Data Systems ADS-SR1 because it has some nice features. It does need another radio with a DTMF keypad (like the Btech V-1) to access those features. I may post something soon about the setup.
@SuAmigoElilegal
@SuAmigoElilegal 3 жыл бұрын
@@Soladaddy one fina question Witch antenna needs to be the highest when u don't have the douplxer . The Rx or Tx antenna
@Soladaddy
@Soladaddy 3 жыл бұрын
@@SuAmigoElilegal I have not used such a setup, but from what I have seen, the receive is usually placed higher. Will help the transmitter have a cleaner signal to send back out.
@nypigskin
@nypigskin 2 жыл бұрын
Does it have to be attached to metal?
@Soladaddy
@Soladaddy 2 жыл бұрын
To work well, yes, it needs to be connected to metal. This type of antenna is only half of the antenna and needs some metal attached to complete the antenna. For UHF it needs a good 6" of metal in all directions from the magnet. For VHF it needs 19" to complete the antenna as designed.
@ferny107fg
@ferny107fg 2 жыл бұрын
Swr to perfect, Dummy load?
@Soladaddy
@Soladaddy 2 жыл бұрын
Well being broadband has a price.
@tomstrum6259
@tomstrum6259 Жыл бұрын
Something bad with your SWR meter.....This antenna is < 2 : 1 SWR but Not 1.1 : 1 as you measured.....Try another meter or use a VNA & report follow up measurements..
@Soladaddy
@Soladaddy Жыл бұрын
I sold the antenna to a new ham who ran it through a car wash so there won't be any re-measurements.
@marvinhanson6942
@marvinhanson6942 2 жыл бұрын
Magnetic mount dummy load.
@Soladaddy
@Soladaddy 2 жыл бұрын
LOL.
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