开云体育

This HW change is optional.
A newer FW will work even without the change

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NanoVNA Wiki: /g/nanovna-users/wiki/home
NanoVNA Files: /g/nanovna-users/files
Erik, PD0EK

Greetings,

I am waiting for several items sent via ~pre-COVID normal~, 2-3 week typical delivery time to Canada, ~ePacket~ and ~AliExpress Standard~ express alternatives. These items have been on order for about 2 months and still have not shown up. Surprisingly some small items I ordered around the same time that were sent via economy shipping are trickling in. According to tracking services several of my express shipment items seem to be stuck in China. Possibly economy shipped items are still arriving via container ships in a somewhat ~pre-COVID normal~ fashion. Possibly in contrast many air shipments are currently stalled due to lack of air cargo space for my relatively low priority mail.

I wonder if there are current day statistics regarding shipment methods from China posted somewhere on the Internet that would shed some light on this situation?

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Best Regards,
tma

The wiki states:

All original nanoVNA and nanoVNA-H with 2.8" display can run the latest firmware. (NOT F, H4 and V2)
Using DfuSeDemo you can backup your current FW (using the "Upload" action )
and then update to a newer FW (using the Upgrade action) so you can go back if something goes wrong.

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NanoVNA Wiki: /g/nanovna-users/wiki/home
NanoVNA Files: /g/nanovna-users/files
Erik, PD0EK

I had almost a month getting my nanoVNA from BangGood, but I kept in touch with them and they kept me up to date on any delays. I will not hesitate ordering anything from them again.

I ordered a FUNCube Dongle from England last week. Howard shipped it the
next day, FEDEX second-day air. I got it two days later.

Zack W9SZ

On Mon, May 18, 2020 at 10:08 AM Rich NE1EE <NE1EE@...> wrote:

A few months ago, I ordered an expensive piece of gear from Europe. Got
here in 2 days. Then sat in customs for weeks. I finally started making
inquiries, and soon got an email asking what I thought was in the box!! I
replied exactly, and the item was released that day. ??? Anyway, all things
considered, I was not too inconvenienced. Just funny to think that it was
here in 2 days, and then sat.

On 2020-05-18 07:38:-0700, you wrote:

Today I received a package from aliexpress that I ordered 22 January, 5

months ago. The package from itead.CC from November last year is missing -
they sent another one but it got returned due to "security" reasons. I also
wait for a youloop antenna ordered few weeks ago, also bounced back and
resent. So yeah, getting registered china post to Europe is not easy now.



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73 de Rich NE1EE
On the banks of the Piscataqua

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I had the same experience, also from Amazon. It's probably more expensive than some other options, but I couldn't put my antenna project on hold for a month with Field Day coming up. The unit the shipped included a nice case and quality accessories. The USB-C cable was defective, but I had on one hand, so that wasn't a critical issue. You'll need a coax adapter for anything but an HT antenna, but those are widely available.

It works perfectly and it's easy to use.

Wayne Rash, N4HCR

For Bill,

Have you been following the shipping issues??? I heard about it and am experiencing it. I ordered a NanoVNA-F on Mar 9th. It was a pre-order. It was shipped via Economy. Shipping started on the 14th. Mine was shipped on the 17th and arrived in Singapore on the 21st. It is still in Singapore I guess. That is almost 6 weeks. I have ordered from china before via the same method and received the items in less than 2 weeks. For more info go to the nanovna-f group on groups.io. Read Junes posts.

A few months ago, I ordered an expensive piece of gear from Europe. Got here in 2 days. Then sat in customs for weeks. I finally started making inquiries, and soon got an email asking what I thought was in the box!! I replied exactly, and the item was released that day. ??? Anyway, all things considered, I was not too inconvenienced. Just funny to think that it was here in 2 days, and then sat.

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73 de Rich NE1EE
On the banks of the Piscataqua

I purchased mine from AURSINC Vector Network Analyzer a year ago. Either I got lucky, or they are a legit outlet. I subsequently "discovered" these lists, and, based on material here, I then ordered a "legit" -H and -F (different sources). Excellent service from June et al. I disassembled both -H and compared...ISTR that I posted images here. I could not see a significant difference twixt the two, and there is no reason why I could not have bought a legit item from a dealer who was reselling legit items. Dunno. Happy w products.

It seems that the routine failure rate for just about everything these days is at least 5% right out of the box|door, and other failures (fittings, knobs, etc.) add a few more percent. It's funny in a way, because I used to look forward to the time when manufacturing had progressed to the point where nearly everything would be nearly flawless (which I know, from running my own company, is possible), but instead it seems that we have sort of regressed. It may be a side effect of "consumer-oriented" economics, rather than "environment- and quality of life-driven" economics. It seems that many buyers now are content to buy something cheaply made, and toss it, neglectful of the environmental impact. Growing up in Maine, and watching the slow, steady decline of the environment there made me very aware that my grandchildren would not see the same world that I was raised in.

LT: I was raised in northern Maine, moved south many years ago, and settled on the banks of the Piscataqua in Eliot. I did a research project on local history while I was there, and decided that I wanted to keep the name active, so I adopted the tag line. Now I live in NH, and can't see the Piscataqua from here :-), but still will always keep the line. Nice to meet you!

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73 de Rich NE1EE
On the banks of the Piscataqua

Today I received a package from aliexpress that I ordered 22 January, 5 months ago. The package from itead.CC from November last year is missing - they sent another one but it got returned due to "security" reasons. I also wait for a youloop antenna ordered few weeks ago, also bounced back and resent. So yeah, getting registered china post to Europe is not easy now.

I purchased my vna-h from Amazon prime. About 70 usd. Fulfilled by seesii , which when googled seems to be a U.S. outlet for alibaba. It came in the nice gold lettered box with all the accessories and seems to work fine.

Also on the Piscataqua, kc1gcc.

Hi Dave,
First You must upgrade the hardware of Your device.
- remove R29, R30 and R31
- replace R13 by 0 Ohm
- replace R9 by 200 Ohm
- replace R24 by 91 Ohm
- replace R22, R23 by 49.9 Ohm
- replace R25 by 11 Ohm
In order to use the full frequency range (10 kHz to 1500 MHz) You must update Your Firmware.

Regards Bert

Reed, you are right. Aexample, i order small low cost items. They used to
come as free economy post. 30 to 50 days.
For a $2 item i feel bad to pay 15$ shipping

I got a NanoVNA from China a few weeks ago (purchased through Ali Express).
It took a long time to get here - about 1 1/2 months.

Zack W9SZ


On Mon, May 18, 2020 at 5:56 AM <namerati@...> wrote:

I am hearing that some people are not able to buy NanoVNA units from
China due to quarantine related issues... has anyone here encounterd
this?

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Hi Erik
Thanks for your swift reply.
I was aware of the wiki but haven't found reference to how you ascertain if a particular nanoVNA is (or isn't) upgradeable to higher frequency operation. (1.5GHz)
Also, I can't find a menu option to display what version of the software my nanoVNA is running. Unless the momentary 'splash' screen Gen11 is a clue?
Other contributors seem to have a CONFIG option in their menus.
Dave

I doubt that you'll have any issues getting your order but you may be required to pay a higher shipping charge. I regularly purchase from a company based in Hong Kong, On my latest order, under $20 U.S., I was requested to pay an additional $16 U.S. for a "Peak Season Surcharge (PSS) for Order ....To mitigate the exposure of epidemic...". Since it is not a critical situation that I need those items now, I can wait to get those items until the surcharge is lifted.

So, where and from whom did you hear this? I am in the importing business and have zero problems importing from anywhere - lead-times on OEM materials are shorter right now if anything. Please send me info on your source of info and perhaps I can get to the bottom of it.

To that point, my NanoVNA-F just arrived - took about 45 days - but earlier than promised by about a month. Watch buyer comments on any source you choose to use.

73,

-Bill, W9MXQ

Everything you always wanted to know and much more:
/g/nanovna-users/wiki

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NanoVNA Wiki: /g/nanovna-users/wiki/home
NanoVNA Files: /g/nanovna-users/files
Erik, PD0EK

Hi newbie here,
I have to admit I was tempted to buy a 'nanoVNA' off Ebay without knowing about this group or the plethora of different nanoVNA's, their extended ranges and 'clones' .
So the one I have displays Gen11.TAOBAO on the splash screen and doesn't seem to have some of the menu items mentioned by other contributors on this forum.
So I guess I have a 'basic' 50k-900MHz clone?
Question....
Is the nanoVNA upgradable to extend the range to 1.5GHz as it would have been good to cover the 23cms band, or did I mess up?
If it is upgradable, can someone link me to a 'dummies guide' how to do this please?
Thanks in anticipation
Dave

I wanted to add a larger capacity battery to my NanoVNA and protect it from getting damaged, so housed my device in an enclosure from Standard Supply Electronics obtained at .
It is nearly the perfect size, once you take a Dremel tool to it to remove some of the excess mounting slots and standoffs. Removed the front plate and mounted directly into the top of the case, in which I made a cutout for the display, using the NanoVNA frontplate as a template, and using the original screws (had to countersink the holes a bit to accommodate the screw heads to be flush to the surface; the enclosure was a bit thicker than the PCB frontplate). I cut up the original front plate to retain the labeling and attached the 2 label sections to the top of the enclosure. Cut slots in the sides to make holes for the USB-C, and Power and Control switches (countersink the area around the Power switch for better access). The case has a separate panel for the coax connectors to go through, it was a simple task to measure and drill these holes.

The 1000mAh battery mounted to the back of the original NanoVNA backplate using some double-stick tape. Drilled a couple holes in the original backplate to accommodate the mounting screws for the enclosure bottom (had to find some shorter screws from an old used enclosure. The screws that came with the enclosure could be used if you are skilled at cutting down screws ( I cut mine too short). The standoffs for the enclosure bottom mounting screws should be trimmed to be slightly above the surface of the NanoVNA backplate for a more secure fit of the enclosure bottom.

Overall, I was amazed at how well the it fit. Even the divide between the enclosure halves were perfectly positioned to avoid the extra work of having to mill holes for the connector and switches. If anyone would like pictures and more detailed instructions. Let me know and I will be happy to ablige.