What does it mean ”if you need to get s12/s22 curve, please exchange the tx/rx port manually”? is it easy to do?

To change the TX/RX port simply unscrew the connection cable from the upper port on the NanoVNA and reconnect it to the lower port.

Will the unit be the 3.4 if i order it now?

Yes, it is 3.4 version, if you order it now

I read in description "900 mhz - enable extended firmware." what does this mean? does it cost extra?

As I understand it, you can extend the range of the device by a firmware update. But there is a resulting decrease in performance. It’s a free update if you so choose. Wayne N4EYZ

What connection type does the battery charger use?

This is an add-on to the other answers that may prevent damage. Quote from specs. on this product page: "maximum charging current 0.8A" In other words, this may get damaged if more than a 1 amp USB charger is used.

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SEESII Nanovna-H Vector Network Analyzer,Upgraded HW3.7 9KHz-1.5GHz MF HF VHF UHF Antenna Analyzer, Measuring S Parameters, Voltage Standing Wave Ratio,Phase,Delay,Smith Chart,Support Data Storage

Product ID: 171114193

💾MicroSD data storage support

📊2.8-inch touchscreen display

📶9KHz-1.5GHz wide freq range

€ 93.95

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Description

📡 Unlock the full spectrum of antenna mastery with SEESII Nanovna-H!

PLUG PLAY VERSATILITY - Includes all essential cables, calibration kit, and supports Android/PC control via NanoVNASaver software.
SEAMLESS DATA MANAGEMENT - Built-in MicroSD slot supports up to 32GB for effortless field data saving and timestamp customization.
PRECISION MEETS PORTABILITY - Compact 7.1oz design fits in your toolkit or pocket without compromise.
NEXT GEN FREQUENCY ALGORITHM - Upgraded HW3.7 tech extends measurement up to 1.5GHz with enhanced accuracy and reduced interference.
COMPREHENSIVE ANTENNA ANALYSIS - Measures S-parameters, SWR, phase, delay, and visualizes on Smith Chart for pro-level diagnostics.

The SEESII Nanovna-H Vector Network Analyzer HW3.7 is a compact, professional-grade antenna analyzer covering 9KHz to 1.5GHz. Featuring a 2.8-inch touchscreen, advanced frequency algorithm, and MicroSD data storage, it delivers precise S-parameter, SWR, phase, and delay measurements. Ideal for electronics engineers and radio enthusiasts, it comes complete with calibration tools and supports Android/PC software control for seamless data analysis and field testing.

Specifications

ASIN	B08132DJLS
Batteries	1 Lithium Ion batteries required. (included)
Best Sellers Rank	#26,903 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #5 in Spectrum Analyzers
Date First Available	November 5, 2019
Item Weight	7.1 ounces
Item model number	NanoVNA-H
Manufacturer	Seesii
Package Dimensions	5.24 x 3.66 x 2.13 inches

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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€ 93.95

Duties & taxes included

In stock

Sold byAmazon GreeceDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Greece.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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