Re: JNCRadio VNA 3G - Vector Network Analyzer - 50k to 3GHz
Or, like most things, Meets FCC Requirements. Sometimes mentions which Part of the code it refers to, for whatever type of gadget it is. Basically, no interfering emissions.
BillSF9c
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Re: JNCRadio VNA 3G - Vector Network Analyzer - 50k to 3GHz
15.103 (c) exempts: "A digital device used exclusively as industrial, commercial, or medical test equipment."
(dd) Test equipment is defined as equipment that is intended primarily for purposes of performing measurements or scientific investigations. Such equipment includes, but is not limited to, field strength meters, spectrum analyzers, and modulation monitors.
Similar sort of thing for spectrum analyzers (which don't have to have cellular frequencies blocked, because they're "test equipment").
It might well be that HP/Agilent/Keysight goes out and does the certification anyway, because some customers may ask for it. Or there's a parallel EU/CISPR kind of thing, and FCC Part 15 is not a big addition to the product program.
Looking at the FieldFox VNA from Keysight - the external AC/DC power supply has a Part 15 compliance statement, as does the External Battery, but the instrument itself doesn't have anything in the manual or on the actual item.
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Re: JNCRadio VNA 3G - Vector Network Analyzer - 50k to 3GHz
Maybe ¡®FCC¡¯ means ¡®Fake Chinese Copy¡¯ in this case. :D
"Silence is golden. Duct tape is silver."
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On Jan 13, 2022, at 16:52, Stan Dye <standye@...> wrote:
?I feel sorry for those who pay the advertised $199 for this.
I guess it does say it has an aluminum case - but that's probably not worth
more than double the price.
On Thu, Jan 13, 2022 at 1:17 PM W0LEV <davearea51a@...> wrote:
Yes, test equipment requires FCC approval and proper labeling. At least
that was the case when I worked at HP. My friend in the Springs (HP's
o'scope division) had to gain FCC approval for o'scopes for HP and
Agilent. The emission levels are 10 dB above those for Part 15, Subpart B
(non-intentional radiators), Class A (Industrial, Scientific, and Medical -
medical is loosy-goosey), if I remember correctly - it's been a while.
Things may have changed since I've been "officially" retired (still consult
a bit for EMC/RFI problems) for some 12 years.
Dave - W?LEV
Dave - W?LEV
On Thu, Jan 13, 2022 at 9:05 PM Jim Lux <jim@...> wrote:
I'm not sure FCC approval is required for test equipment. Taking a gander
at an Owon function generator, a Fluke DMM, and a Tek oscilloscope here in
my office, I don't see FCC markings (e.g. no Part 15).
Yes, you can't really claim FCC approved. A more correct statement might
be "no FCC approval required"
--
*Dave - W?LEV*
*Just Let Darwin Work*
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Re: JNCRadio VNA 3G - Vector Network Analyzer - 50k to 3GHz
I feel sorry for those who pay the advertised $199 for this.
I guess it does say it has an aluminum case - but that's probably not worth
more than double the price.
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Show quoted text
On Thu, Jan 13, 2022 at 1:17 PM W0LEV <davearea51a@...> wrote: Yes, test equipment requires FCC approval and proper labeling. At least
that was the case when I worked at HP. My friend in the Springs (HP's
o'scope division) had to gain FCC approval for o'scopes for HP and
Agilent. The emission levels are 10 dB above those for Part 15, Subpart B
(non-intentional radiators), Class A (Industrial, Scientific, and Medical -
medical is loosy-goosey), if I remember correctly - it's been a while.
Things may have changed since I've been "officially" retired (still consult
a bit for EMC/RFI problems) for some 12 years.
Dave - W?LEV
Dave - W?LEV
On Thu, Jan 13, 2022 at 9:05 PM Jim Lux <jim@...> wrote:
I'm not sure FCC approval is required for test equipment. Taking a gander
at an Owon function generator, a Fluke DMM, and a Tek oscilloscope here in
my office, I don't see FCC markings (e.g. no Part 15).
Yes, you can't really claim FCC approved. A more correct statement might
be "no FCC approval required"
--
*Dave - W?LEV*
*Just Let Darwin Work*
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Re: FW: RE: [nanovna-users] Nanovna-H4, looking for a case this will fit in.
Yep, makes a great test package, and so handy! The instruments are a bit delicate, but for the price and performance, can't be beat! Ted (KD7AQO) -----------------------------------------From: "Dale - 2W0ODS" To: [email protected]Cc: Sent: Thursday January 13 2022 12:55:59PM Subject: Re: FW: RE: [nanovna-users] Nanovna-H4, looking for a case this will fit in. Hi Ted, Thank you for posting that, it looks great. It's given me an idea to pack another one of my Nanovna's with my TinySA to take out with me when I'm operating my radio portable/sota. Dale Links: ------ [1] /g/nanovna-users/files[2] /g/nanovna-users/leave/8706519/4866111/1865567994/xyzzy
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Re: JNCRadio VNA 3G - Vector Network Analyzer - 50k to 3GHz
Yes, test equipment requires FCC approval and proper labeling. At least
that was the case when I worked at HP. My friend in the Springs (HP's
o'scope division) had to gain FCC approval for o'scopes for HP and
Agilent. The emission levels are 10 dB above those for Part 15, Subpart B
(non-intentional radiators), Class A (Industrial, Scientific, and Medical -
medical is loosy-goosey), if I remember correctly - it's been a while.
Things may have changed since I've been "officially" retired (still consult
a bit for EMC/RFI problems) for some 12 years.
Dave - W?LEV
Dave - W?LEV
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On Thu, Jan 13, 2022 at 9:05 PM Jim Lux <jim@...> wrote: I'm not sure FCC approval is required for test equipment. Taking a gander
at an Owon function generator, a Fluke DMM, and a Tek oscilloscope here in
my office, I don't see FCC markings (e.g. no Part 15).
Yes, you can't really claim FCC approved. A more correct statement might
be "no FCC approval required"
--
*Dave - W?LEV*
*Just Let Darwin Work*
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Re: JNCRadio VNA 3G - Vector Network Analyzer - 50k to 3GHz
I'm not sure FCC approval is required for test equipment. Taking a gander at an Owon function generator, a Fluke DMM, and a Tek oscilloscope here in my office, I don't see FCC markings (e.g. no Part 15).
Yes, you can't really claim FCC approved. A more correct statement might be "no FCC approval required"
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Re: JNCRadio VNA 3G - Vector Network Analyzer - 50k to 3GHz
Even though they claim FCC approved, there is nothing filed on the FCC OET site for either JNCRADIO or CHELEGANCE. Nor are there required labeling on the product. Typical of China, the claim is bogus. Another clone, but the Instruction Documentation is pretty good and applicable to the real produce - the NANOs. Dave - W?LEV On Thu, Jan 13, 2022 at 8:24 PM Carl-Mikael Zetterling <bellman@...> wrote: An email today from Seeedstudio caught my attention.
They are now selling the JNCRadio VNA 3G - Vector Network Analyzer - 50k
to 3GHz
Look familiar?
Carl-Mikael
-- *Dave - W?LEV* *Just Let Darwin Work*
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Re: FW: RE: [nanovna-users] Nanovna-H4, looking for a case this will fit in.
Hi Ted,
Thank you for posting that, it looks great.
It's given me an idea to pack another one of my Nanovna's with my TinySA to take out with me when I'm operating my radio portable/sota.
Dale
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Re: JNCRadio VNA 3G - Vector Network Analyzer - 50k to 3GHz
Very? much ;-)
Op 13-1-2022 om 21:21 schreef Carl-Mikael Zetterling:
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--
Dit e-mailbericht is gecontroleerd op virussen met Avast antivirussoftware.
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JNCRadio VNA 3G - Vector Network Analyzer - 50k to 3GHz
An email today from Seeedstudio caught my attention.
They are now selling the JNCRadio VNA 3G - Vector Network Analyzer - 50k to 3GHz
Look familiar?
Carl-Mikael
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FW: RE: [nanovna-users] Nanovna-H4, looking for a case this will fit in.
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Re: Nanovna-H4, looking for a case this will fit in.
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Re: Nanovna-H4, looking for a case this will fit in.
I am going to print this on Thingy-verse, Not sure if its what you want.?
Regards
Dennis G6YBC
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On Thursday, 13 January 2022, 16:30:50 GMT, Lou W7HV via groups.io <louandzip@...> wrote:
I use a case I got from Home Depot lined with anti-static foam.
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Re: Nanovna-H4, looking for a case this will fit in.
I use a case I got from Home Depot lined with anti-static foam.
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Re: semi automatic quartz measuring
Sweep points number not critical, in Nano measure i use billinear inrerpolation on search (on smith crystal look as circle, so bilinear interpolation work good). So need just select frequency range then possible see both main resonances and points then phase shift +-45 degree.
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Re: Nanovna-H4, looking for a case this will fit in.
On Thu, Jan 13, 2022 at 01:11 PM, Bill Cromwell wrote:
Hi,
I keep mine in the nice box it came in. When that starts to wear out I
will probably make a case to fit and also hold the accessories. I would
probably make it from some kind of wood but I could use steel or
aluminum sheet. Have you considered making your own case?
73,
Bill? KU8H
bark less - wag more
I use my Nanovna's outdoors a lot and need a soft case for them, I want to rest it on the case when using it as well. I was using the box it came with but I have lost count how many times it has blown over and the contents have fallen out, it also rains most of the time in this country so need to zip it up quickly in a soft case when the weather changes. Also I want to use one of my Nanovna's for SOTA/Portable radio operation so need to keep the weight down.
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The Amazon case that a few of you ordered, does the Nanovna-H4 actually fit in it and do any of you have pictures of it in the case?
Thanks.
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Re: Nanovna-H4, looking for a case this will fit in.
Hi,
I keep mine in the nice box it came in. When that starts to wear out I will probably make a case to fit and also hold the accessories. I would probably make it from some kind of wood but I could use steel or aluminum sheet. Have you considered making your own case?
73,
Bill? KU8H
bark less - wag more
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On 1/13/22 7:45 AM, Dale - 2W0ODS wrote: I've bought a few "Hard drive" cases from Amazon, all have stated they have bigger dimensions than the Nanovna-H4 but all have been too small.
Has anyone bought one from Amazon that fits? Pictures of a Nanovna-H4 in a case would be very helpful.
Thanks
Picture attached of the issue I'm having:
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Re: Nanovna-H4, looking for a case this will fit in.
Here is what I have been using. Holds Nano, many adapters, some SMA cables and the USB cable fro Saver
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On Thursday, January 13, 2022, 07:55:20 AM EST, Larry Rothman <nlroth@...> wrote:
Some forum members have ordered the Gameboy Advance hard case. Search out messages using those terms for more info.
? On Thu., 13 Jan. 2022 at 7:45 a.m., Dale - 2W0ODS<dale.robins@...> wrote:? I've bought a few "Hard drive" cases from Amazon, all have stated they have bigger dimensions than the Nanovna-H4 but all have been too small.
Has anyone bought one from Amazon that fits? Pictures of a Nanovna-H4 in a case would be very helpful.
Thanks
Picture attached of the issue I'm having:
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Carl-Mikael Zetterling
Lou W7HV
