Tindie
HCXQS group
About
RF tools and modules
Shipping Policies
We have added the option of TNT express shipping for most countries. However, due to COVID-19 delivery times may be slower than usual. Please check the website of the courier you selected for time estimates and COVID-19 info. We will ship orders within 5 business days, but will not be responsible for any delivery delays. The courier may collect tax, customs duty, and additional customs clearance fees at time of delivery. Please check the VAT and duty rates as well as TNT's brokerage fees for your country. For ePacket shipments, the package is considered lost if not delivered in 120 days. For courier shipments, we will require a statement from the courier of any lost packages.
Rates to United States of America
| Shipping Rate | First item | Additional items |
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Reviews
Pavel Anatol | July 8, 2020
Отличный продукт!
For NanoVNA V2
Roberto | July 3, 2020
Excellent tool
For NanoVNA V2
Ordered without case or calibration kit,good for portable use
Stephen | June 27, 2020
Impressive Tool
For NanoVNA V2
Ordered with acrylic case. I made acrylic washers/spacers, od=6.0, id=3.0, h=3.8, to better mount case to boards.
Impressed with accessories.
Jeffrey | June 26, 2020
Great device - shipping took ages
For NanoVNA V2
Yuriy | June 24, 2020
Needs to be improved
For NanoVNA V2
1. Incorrectly measures capacitance and inductance.
2. For each new frequency range, you need to do your calibration. In the first nanoVNA, I did a calibration once, and switch the frequencies as you want - the calibration will work fine.
3. The battery charge indication is made by a line of four LEDs, and not by a symbol on the LCD.
I think that all this can be improved by fixing the firmware.
25.06.2020:
Capacitors 6.19nF + -0.5% and 38.3nF + -0.5%
nanoVNA ver.06.2019: 6.2-6.21nF 38.4nF
nanoVNA ver.11.2019: 6.19-6.2nF 38.5-38.6nF
nanoVNA2: 5.97-6.05nF 42.0-42.1nF (immediately after switching on)
nanoVNA2: 6.15-6.24 nF 42.0-42.1nF (10 minutes after switching on)
nanoVNA2: 6.19-6.30nF 41.9-42.0nF (25 minutes after switching on)
The measurements were carried out at a frequency of 50 kHz. The capacitance of the capacitors, measured by an attorney with an error of 0.3%, was 6.2 nF and 38.3 nF.
When measuring an inductance of 5 μH + -10% at a frequency of 50 kHz, nanoVNA2 shows 2.41-4.77 μH (readings randomly jump) and only at frequencies of 1-2 MHz the readings are normal - 5.4 μH. Your nanoVNA2 is very hot compared to the first version. When I try to determine the heat source by touching the board with my finger, the device failed - on the Smith diagram it shows 5 Ohms with the input open. I touched the details above the lower right screen (CH1). Tell me, what kind of chip could fail?
