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 commercialized by Hugen

NanoVNA-H v3.3

5.1K Type-C CC resistors

Hugen mid-October 2019

full case

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 hardware versions - NanoVNA-F

NanoVNA-F’s development and firmware update: https://github.com/flyoob/NanoVNA-F

Deepelec Store with App: https://s.click.aliexpress.com/e/2G2O0cIc

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