Nagoya NA-771 Fake vs Original Antenna Comparison Test

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Nagoya NA-771 Fake vs Original Antenna Comparison Test

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Күн бұрын

How to spot a fake Nagoya NA-771 antenna. Nagoya NA-771 antenna review. Nagoya NA-771 SWR test. Nagoya NA-771 antenna analyzer test. Nagoya NA-771 Fake vs Original Comparison Test. Fake vs Original Nagoya NA-771. SWR test of fake Nagoya NA-771 antenna. SWR test of the original Nagoya NA-771 antenna. Nagoya NA-771 antenna. Original Nagoya NA-771 antenna. Original Nagoya NA-771 antenna from Amazon review. Nagoya NA-771 antenna from Aliexpress review.
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Nagoya NA-771:
Aliexpress: ali.pub/4zmsm9
Amazon: amzn.to/2Tz2U12
Original Diamond SRH77 SMA antenna: amzn.to/40xQLuM
Radios:
WOUXUN KG-UV2Q: alii.pub/6wtaca
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SWR meter:
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AliExpress: ali.pub/4yo62f
Analogue SWR meter: alii.pub/6jxsn4
Cheap spectrum analyzer:
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AliExpress: alii.pub/6tlxd4

Пікірлер: 104

@alanburgess2203 3 жыл бұрын

Excellent very clear to understand video, just checked my 2 recently purchased Nagoya antennas, yep they are fake!

@ElectronicsComputers 3 жыл бұрын

Glad it helped

@teo2975 3 жыл бұрын

How did you check? the one that says "Btech" is NOT Nagoya's packaging

@Narro27 3 жыл бұрын

Спасибо тебе! Теперь понятно, подделки тоже начали делиться на премиальные и обычные )))))

@ElectronicsComputers 3 жыл бұрын

I'm happy to help!

@richardroggers5349 3 жыл бұрын

Outstanding! Thank you for your time and effort.

@ElectronicsComputers 3 жыл бұрын

Glad it was helpful!

@johnroberts6695 Жыл бұрын

Very good video, though I was surprised the “cheap” antenna did as well as it did. Looking at my Nagoya NA-24J antenna, it read 20W for its power output, while the fake ones I've seen say 10W. Taking SWR readings with Surecom meters can be off by wide margins since there's no way to establish a ground plane, even with steel ground plane shields (which are no longer being offered with Surecom meters due to cost and because they don't really work). Still, I would love to see you test some cheap no name antennas next to your Nagoya. Oh, and I highly recommend the Retevis RHD-771. It's a higher guage antenna that has worked out very well for me. Cheers.

@ElectronicsComputers Жыл бұрын

Thank you for the comment! Yeah, I'm familiar with the Retevis RHD-771. It's a very good antenna.

@davidmoore4085 3 ай бұрын

Frequency Center Tuning: 144 - 430MHz Gain: 2.15 - 3.5 dBi Wave: 1/4λ - 5/8λ Optimal Transmit Frequency Range: 140-148MHz, 420-450MHz Connector Type: SMA-Female Impedance: 50Ω, VSWR: ≤ 1.5 Direction: Omni-directional Max Input Power: 10W Antenna Length: 16 inches / 41cm Package Contents: Nagoya NA-24J, Antenna Washer

@davidmoore4085 3 ай бұрын

I have that antenna straight from btexh website and it says 10watts

@happyjack880 3 жыл бұрын

Just ordered the NA-771 from Amazon. I'll find out Wednesday which one I get. Thanks for posting this.

@ElectronicsComputers 3 жыл бұрын

Happy to help!

@rallypoint1 3 жыл бұрын

So was it a legit antenna?

@ElectronicsComputers 3 жыл бұрын

@@rallypoint1 The antenna from Amazon is the legitimate one, at least in my case. The link in the description.

@happyjack880 3 жыл бұрын

@@rallypoint1 yes, I received the genuine article. And it works great. Any future handhelds I buy will be equipped with them.

@rallypoint1 3 жыл бұрын

@@ElectronicsComputers Awesome!!

@KalterKrieger 3 жыл бұрын

Very good test! Thank you for this information.

@ElectronicsComputers 3 жыл бұрын

Thank you for the comment! I'm happy to help!

@gforce278 3 жыл бұрын

The fake one is actually not bad too according to that SWR plot. I think it will be better than rubber-duck antenna that comes with the radio.

@ElectronicsComputers 3 жыл бұрын

Anyway it worth 8$ but the original one is significantly better in all its aspects.

@wilcoxtactical3716 Жыл бұрын

Where can I buy an original?

@danielpelletier3834 2 жыл бұрын

Thanks for this video. I love beating those scammers !!! I now know what to look for. Thanks again and I subscribed and look forward to seeing more of your videos;

@ElectronicsComputers 2 жыл бұрын

Thanks for the sub!

@adrianbeacon6421 Жыл бұрын

What's going on with frequency detection with first antenna on 2m band. Why SWR meter shows 208.105Mhz?

@petergough2635 6 ай бұрын

Never mind fake vs real. I’ve recently completed a vswr check with the stock antennas sent out with a Baofeng and a Quansheng HT and the results were terrible. All four tested were well over 4:1. One of the rubber duckies was into double figures. Whereas my hand made slim Jim comes in at 1.1:1.

@knutabl 4 ай бұрын

Great video! When you try the cheap antenna at 144MHz (time 2:16) your SWR meter indentifies it as 208.105MHz, and SWR is 1.72. Thats a bit strange?

@ElectronicsComputers 4 ай бұрын

Thank you for the comment! That SWR meter sometimes shows wrong frequency readings but SWR value is very accurate.

@nordicwolf8808 Жыл бұрын

Thanks, this really helped.😊

@ElectronicsComputers Жыл бұрын

Glad it helped!

@jerrysmith7166 6 ай бұрын

mine has the off tip, not looking original with a logo, but my qr scanner took me to their website, and i got it straight feom baofeng so looks can be deceiving

@ElectronicsComputers 6 ай бұрын

That QR code can be printed on anything you want. But in general, both antennas perform pretty good. The difference is only visible on some testing equipment but in real life, you'll never notice that difference in antenna performance.

@deadave100 Жыл бұрын

I buy from 'B-Tech' and so far...No “cheap” ones. I did buy 3 “cheap” ones (Ebay & Cheap Price = "Cheap Antenna")....only one had bad SWR readings...BUT some of the “cheap” ones do have pretty good SWR readings. So far..The only way to tell the “cheap” ones by looking at it, the real ones, if you look at the tip.....the little Tip should say "NAGOYA"..if it don't, “cheap”.

@newq 2 жыл бұрын

Such great antennas, but you gotta pay full price. $20 isn't that bad for an antenna that kicks so much ass. Don't be cheap. Get the real thing!

@ElectronicsComputers 2 жыл бұрын

Totally agree!

@thelydiaspringexperiment6437 Жыл бұрын

I pay 3 dollar then fine tune at home. End of the day it's just a bit of wire

@kevtheskin 2 жыл бұрын

You tested the antenna lying down horizontal this will give poor results. Also these antenna's use your body as part of the grounding. So I dont think the results are accurate. K

@ElectronicsComputers 2 жыл бұрын

It doesn't matter, because both antennas were tested at the same conditions and both SWR meter and antenna analyzer show pretty similar results. I agree that it's not a scientific or super accurate test but the point was to compare those two antennas and find out if they perform differently. And this test clearly shows the difference in their performance.

@playeah1 3 жыл бұрын

Greetings. Is it safe for a mono band portable radio installed with an aftermarket dual band antenna?

@ElectronicsComputers 3 жыл бұрын

Absolutely safe but dual band antenna may not perform as good as a dedicated one band antenna. You have to compare SWR values on the particular band/frequency that your radio works.

@playeah1 3 жыл бұрын

@@ElectronicsComputers thank you.

@greasemonkeychef 3 жыл бұрын

What radio output power setting are you testing with?

@ElectronicsComputers 3 жыл бұрын

That radio was just out of the box with all default settings. The RF output power was set to the maximum.

@egribikayt5518 2 жыл бұрын

is the spacer gasket thing gonna affect the performance?

@ElectronicsComputers 2 жыл бұрын

That gasket is only for dust protection and it won't work for most radios.

@marcoallevi9303 11 ай бұрын

Not at all

@svyat4178 Жыл бұрын

Thanks for the charts

@ElectronicsComputers Жыл бұрын

Happy to help!

@nigelgunn322 Ай бұрын

You cannot do a meaningfull SWR TEST USING small meter and handheld radio as the antenna under test is really half of a diople, the other half consisting of your meter, radio, and your body holfong thr radio. As you show, with the radio laynig an the bench, SWR will be affected by any metalwork supporting the bench.

@ElectronicsComputers Ай бұрын

Here's the corrected text: I know that, but if you're doing the same test in the same environment and the only thing that changes is the antenna, then you can get an idea about the antenna's performance. Also, those antennas were checked on a more advanced device (you can see the results on the graphs), and the results are about the same. The main idea wasn't to determine the actual SWR but to see if the fake antenna performs the same as or worse than the original one.

@sweeperdave1 Жыл бұрын

Thanks for this.

@ElectronicsComputers Жыл бұрын

Welcome!

@MrHYDRO84 3 жыл бұрын

mine doesn't have qr code on base and has a plain silicone tip no manafacturer name is it a fake?

@ElectronicsComputers 3 жыл бұрын

Most likely it's a fake antenna but it also perform pretty good, at least the fake ones that I've tested.

@MrHYDRO84 3 жыл бұрын

@@ElectronicsComputers it's ok I sent picture of it to Nagoya and it's genuine, I have better antennas anyways cheers

@teo2975 3 жыл бұрын

half of this youtube is total nonsense and Nagoya itself has had to issue a list of official distributors. The packaging you see as claimed "genuine this is ONE distributor putting the antenna it in their own packaging. the packaging listed as "fake" here is actually the packaging the Nagoya comes in from the factory. This is the same nonsense the Btech aka Baofengtech (which is not hte official baofeng company by one of scores of distributors) did making their own packaging for Baofengs it is selling and then claiming other packaging is "fake."

@MrHYDRO84 3 жыл бұрын

@@teo2975 Totally agree

@Persojet 3 жыл бұрын

Do you know if NA-771A (A for airband) is available anywhere?

@ElectronicsComputers 3 жыл бұрын

The links for that antenna is in the description box below the video. Nagoya NA-771A is not the best option for airband but anyway it's way better than most stock VHF/UHF antennas.

@Persojet 3 жыл бұрын

@@ElectronicsComputers what would you prefer for airband then (118 - 136 mhz)? Also didn't find A version link, only the one for stock 771(non A)

@dalegirard8453 2 жыл бұрын

What about antennas with the blue lettering

@ElectronicsComputers 2 жыл бұрын

The blue ones are the old Nagoya style antennas and they don't make them anymore.

@noimnotarobotcanubeleiveit7024 3 жыл бұрын

just tore down a 773, dont know if it was fake but swr was useless. it had a tiny tight wound loading coil inside which i removed and replaced with a large 5 turn wide spaced coil around the outside of the original housing. it now gets 144-146 below 2.0swr with one or 2 sections collapsed. fully out it tunes 137 so ok for sat rx. 70cm is non existent. to be fair, the antenna that came with my vx7r is crap in any configuration. the best rubber antenna i had was on ic-t2h . i have yet to find a handheld multiband that works well

@ElectronicsComputers 3 жыл бұрын

There's so much fakes nowadays so you have to be super lucky to find the original one.

@user-cz6lr2mv8o Жыл бұрын

Этот китайский тестер не особо точен, все таки КСВ антенн лучше и точнее мерить NanoVna

@ElectronicsComputers Жыл бұрын

Thanks for the tip!

@mj4444ru Ай бұрын

Судя по сайту производителя, обе антенны являются оригинальными...

@DarkKokoro84 2 жыл бұрын

Are the ones from the Aliexpress links in the description legit or no?!

@ElectronicsComputers 2 жыл бұрын

NO! Only from Amazon.

@deltatom2459 Жыл бұрын

@@ElectronicsComputers Amazon is not a Quality Guarantee..... they sell BS too

@MondoRockGP 11 ай бұрын

Friend, I am a newbie, I bought 2PACK BaoFeng UV-16 Max V2 10W High Power IP68 Waterproof Walkie Talkie Support Type-C Charger Long Range Radio Upgrade UV5R PRO but I can only talk up to 500 meters, I need at least 10km. I'm doing something wrong or it's not the right model (these are given for distances up to 50 km. which I don't need) What do you recommend, thank you thank you

@ElectronicsComputers 11 ай бұрын

Is the power set to maximum, and what band did you use? You'll never get 50km or even close with those radios unless you're in space or in a straight line of sight. But something about 3-10km should work depends on your terrain.

@nzoomed 2 жыл бұрын

Damn. I got ripped off again. I'm yet been able to get a genuine one!

@ElectronicsComputers 2 жыл бұрын

The link for the original one from Amazon in the description.

@joesanchez979 3 жыл бұрын

Nice👍

@ElectronicsComputers 3 жыл бұрын

Thank you for the comment!

@PlakhoyAV 2 жыл бұрын

Разберите их и посмотрите что внутри.

@JVR2019 2 жыл бұрын

Great job

@ElectronicsComputers 2 жыл бұрын

Thanks!

@e.g.7290 3 жыл бұрын

I think both of them are genuine. You can check photo at product file. www.nagoya.com.tw/v_comm/inc/product_file_download.asp?customer_id=2277&lang=2&id=384799&file_name=p_160325_07186.pdf It is seen that the logo is not available when you zoom in the pointed plastic end. May be the new series have qr code and pointy plastic tip with logo.

@ElectronicsComputers 3 жыл бұрын

In terms of quality and performs there's something clearly wrong with the antenna from AliExpress.

@teo2975 3 жыл бұрын

Exactly. The Btech packaging is Btechs (and Btech/Baofengtech is NOT the Baofeng company) own packaging, and the upper packaging claimed to be "fake" packaging in this video is actually what comes from Nagoya factory. The claim that only those antenna marked "Btech" or "Baofengtech" are legit is the same nonsense claim that only Btech aka Baofengtech are the only legit Baofeng radios. BTech has gotten into trouble calling other US distributors/sellers UV-5rs "fake" even claiming that UV-5r was "discontinued." The actual Baofeng company had to issue statements on its website stating BTechs claim was false. Looks like they are now pulling same nonsense with nagoya antennas, and Nagoya has had to counterr Btechs claims, and Nagoya has noted Btech is NOT the only authorized US nagoya seller. Reminds me of the Btech claim that brown Baofeng box meant it was "fake" when Baofeng factory itself puts them in brown boxes. Bteck/Baofeng tech is one of MANY official Nagoya distributors. Do we think the other distributors are putting the name of a competing distributor on their packaging???

@Lithium023 Жыл бұрын

@@teo2975 do they ship nagoyas from China? Cause mine I just got shipped from China, came in a green sleeve and says made in taiwain on the packaging. I havnt totally written it off yet cause maybe there made it Taiwan but then sent out to China for shipping but seems strange.

@user-ve4ud7tk6s 3 жыл бұрын

nice

@ElectronicsComputers 3 жыл бұрын

Thanks

@marcoallevi9303 Жыл бұрын

Hi. I'm going to receive a genuine Nagoya NA-701 HT SMA male Antenna, but as far as I saw in other reviews, ALL these are just CRAPWARE. It's crazy how the factories don't perform the MINIMAL NECESSARY SWR tests, and they release sticks that are somewhat resonant at 150 - 160 MHz (VHF), and 440 - 450 MHz (UHF). The ridiculous fact is the justification that the factory provideswhen you contact 'em, saying that "a counterpoise wire is needed" !!!!! Counterpoise on an HandHeld radio ?!?!? The same shit happens with DIAMOND SRH 36, SRH519, SRH 701, SRH 771... There is NOT A SINGLE AERIAL resonating at 144 or 432 MHz at all !!!. I have two old COMET SH/85 (BNC) and a SMA-3 (SMS male) PERFECTLY WORKIN' at 144 and 432 MHz !. It appears IMHO that THE ONLY DECENT antennas are the ones produced by COMET (NGC now). I will see the NA 701 that comes from Spain, as here in Italy, Diamond is easy to find genuine, but Nagoyas are ALL FAKE. Hope my two cents are helpful. I measure through a base for mobile antenna with a large metal base, and the right measurements are successful with Comet SB5, SH95 (mobile antennas), and COMET SH85, SMA3, CH701X. All these sticks are PERFECTLY centered and show 1:1 to 1:1,5 SWR at VHF and UHF HAM frequencies ! 73.

@marcoallevi9303 Жыл бұрын

Tests were performed with: YAESU VX-2E HT Transceiver, YAESU VX-8E HT Transceiver, KENWOOD TH-78E HT Transceiver, YAESU FT-847 ALL BAND TXCVR. SWR Meters used: ZETAGI 430 Pro Line VHF/UHF SWR Meter, DIAMOND SX-400 VHF/UHF SWR Meter. Cable for the external measurements: BELDEN 9907 50 Ohm Double Shield, High Prop. Speed. / Lucent Teflon Low Loss military grade cable.

@ElectronicsComputers Жыл бұрын

There's lots of fakes nowadays and it's really hard to find a decent antenna. Also many sellers in Europe sell stuff from Aliexpress and sometimes it's hard to say if it's a genuine product or not. This is why I prefer to order some equipment from specialized shops in the US. I hope you'll get a decent Nagoya NA-701.

@marcoallevi9303 Жыл бұрын

@@ElectronicsComputers I got the list of European authorized resellers either from Diamond and Nagoya/Reuex, and l bought regular products. Despite this, with respect of the two companies, some products are crappy... :) 73

@mikesey1 11 ай бұрын

I have two genuine 701s. Their performance is equal to a Retevis or Wouxhen (sp) antenna.

@marcoallevi9303 11 ай бұрын

I received the Nagoya NA-701 HT SMA male, and it's genuine. This is actually my definitive VX.8R antenna, as it's perfectly resonant at HAM center bands. I confirm after further measurements that the NA-771 SMA male is a piece of crap.