Vector Network Analyzer
nanoVNA hardware versions
The original nanoVNA by edy555
- a single Si5351A clock
- three SA612AD mixers (reference, port 0 + 1)
- resistor bridge for port 0 “reflection”
- stereo TLV320AUC3204 analog-to-digital converter
- left, right channels for inline, quadrature
- three internally-switched single-ended input (IQ)pairs for reference, ports 0 + 1
Other hobbyist VNA, antenna analyzer, and software defined radio designs
share many of these design concepts.
edy555’s open source design (https://github.com/ttrftech/NanoVNA) was in limited distribution as a kit.
nanoVNA-H
commercialized by Hugen reduced cost and enhanced usability
- working LiPo
- refined touch screen
- better PCB layout, RF shielding
- third harmonic operation 300-900MHz
- Touchstone file export
- standalone PC software
At least 5 nanoVNA-H implementations
black, shields, USB-C
Hugen’s @ gen111.taobao.com and close clones
white, micro USB “gekko”
initially most available on eBay
black, unshielded, USB-C, missing CH0 script
AKA “Worse clone”
Variations may come
- with or without batteries,
- battery leads soldered or by connector,
- better or worse calibration kits,
- SMA connectors fully soldered or not,
- different firmwares,
- calibrated (touchscreen and/or OSLT) or not.
- rear cover shielded or not
- Many vendors may ship different units over time.
hugen@…
Two bad clones have been found, they have failed to understand the role of bridge and shielding, and made some bad modifications to facilitate manufacturing.
NanoVNA-H v3.3
Hugen mid-October 2019
NanoVNA-H v2
“NanoVNA 2”
Different from “NanoVNA-H V2″…
From original nanoVNA inventor Tomohiro AKA edy355, per this message
J.R.R. Tolkien: “Those who approve of courtesy (at least) to living authors”
nanoVNA in name only
NanoVNA-F
Larger screen, different processor & RTOS (so obviously firmware), perhaps some similar commands.
NanoVNA-F’s development and firmware update: https://github.com/flyoob/NanoVNA-F
Deepelec Store with App: https://s.click.aliexpress.com/e/2G2O0cIc
