Yeasu FTM-500D - Spectral Purity Test
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- Опубликовано: 22 авг 2024
- In this video, we perform a Spectral Purity test on the new Yaesu FTM-500D Dual Band Ham Radio using a TinySA. Sponsored by www.pcbway.com Cheap & quick PCB, 3D Printing, CNC machining, and fabrication services from PCBWay.
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For $650, it better be **squeaky** clean!
Right
@@TheSmokinApethe Yaesu ftm400 went up in price and hard to find now but I think I would rather have the sensitive touch screen on the 500 instead.
And the entire Yeasu FTM-500 Design Team breaths a collective sigh of relief! I always enjoy videos from TheSmokinApe.
LOL, thanks for watching Bob!
Just started watching your videos and I have to say.. I can actually feel my blood pressure rise when I hear the Teams message notification going off. 🤣
LOL, they drive me crazy too!
Great result. With the spec analyzers only a few $, the manufacturers should have no excuse for something failing harmonics and spurious testing.
Totally agree, thanks for watching.
Great video Ape, that radio looks beaut! I need to get one of those TinySA's
Don't cheap out, get the Ultra.
I bought a Nano VNA years ago, and played with it, but never really used it. Yesterday, inspired by your use of the VNAs, I tested my home brewed 2M Moxon, which I modified this week with a pair of parasitic elements for 70CM. The testing took about 20 minutes, and the antenna seems to be tuned OK. I like your ongoing testing series, and like that your not giving the "big" names an automatic pass.
Nobody gets a free pass here! lol... The VNA is essential if you want to know what's going in with the antenna 👍
Looks like Yaesu has a decent quality team.
Correct.
That radio is clean, Glad you tested it now we know!
Haven’t seen a Yaesu that wasn’t 👍
@@TheSmokinApeIt's almost as if Yaesu (seemingly unlike others) employs a QC department.😉
Right
Great test Ape. Yaesu always seems to have a clean spectrum. 73
I've never seen a Yaesu that didn't, thanks for watching.
I bet you made John Kruk's ears perk up with that thumbnail.
lol
FWIW the one UV5R I tested would have scraped through with a pass (I am not in an FCC jurisdiction), the majority of the main brands are terrific, often every harmonic or spur at below -70dBc.
Totally agree, thanks for watching G0FVT
You can disable the averaging on the left side and it settles immediately. Since the carrier is constant and you don’t need a few sweeps to get a reading, it should be fine for this test.
Nice tip PCF, but I do like the averaging as I feel it keeps everyone honest... lol 👍
Happy Independence Day Ape. KO4HPC 73
Sorry I'm late but same to you!
Thanks Ape!!
Hey BA, thanks for watching!
Thank you for a great video again. I so need to build up my tools so I can do the same
Thanks Chevy, glad you liked it!
Smoove!
Right
950 canadian before taxes.
No wonder Chinese rigs are taking over the market.
Awesome video as always though, 73!
Ouch at 950!
It would be good to also test the icom ic-2730a. But i wouldn't expect you to get one of those. I have an ic -2300H and I know it puts out a signal on the third harmonic. Which in my very unscientific test with a whip anntena and my tinysa normal wasn't in spec.
If I come across one, I will test it... thanks for the info on the 2300H 👍
Great job, Ape!
Thanks Ed!
I wouldn't say "it's clean". Id say all harmonics are in to the noise. If you zoom in to the harmonic frequency and use a smaller bandwidth, you will see there are harmonics and you can measure them for real that way. If you really want to measure them, follow up the 2nd attenuator with a high pass filter and remove the fundamental from the measurement. Any chance of the SA being desensed will be removed. But we can see that the harmonics look good. They are probably in the -75 to -85 dB range.
Fair enough, thanks for the feedback BD 👍
Yaesu, what else needs to be said. #tank 73, KF0NNQ
They do it right 👍
Nice
Thanks!
When you tested 70cm the screen on the computer it showed the marker 1 was reading at 432.9 MHz instead of 432 MHz. Does this mean that the radio is transmitting off frequency?
No, it just is because the span being swept was so large and there are only so many data points. If we zoomed in it would be fine 👍
@@TheSmokinApe makes sense. Thanks for the reply.
Have you done that with a UV5R?
Yes, many times. Some pass and as you would expect many fail.