Can this be used to test the efficacy of EMP blocking cages and pouches?

It depends what frequency range you are testing and if you have the proper pickup antenna. The EMP noise source could be inside the cage/pouch and the analyzer with probe on the outside. Or, the analyzer and probe is inside the cage while the EMP noise is outside. Second scenario would be tricky to trigger and capture unless you use the waterfall.

can this be used to display and analyze noise on an AC power line?

You might be better off with an oscilloscope. The TinySA does not have high input impedance and a direct measurement on the power line would likely damage it (and be very unsafe).

Is this suitable for testing tv vhf and uhf signal strength?

Not an expert on TV VHF and UHF, but I believe the TinySA range covers the UHF and VHF spectrum. With some calibration and manual setting (research on YouTube) it will provide accuracy that meets most needs. It is not a $2500 SA, so expect a certain amount of "ok, but its only $50 bucks". Also, ATTENUATE if signal strength/input is expected to be high. Again, research videos with professional testing from engineers. There's plenty of help online.

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Portable TinySA Spectrum Analyzer,SEESII Handheld Tiny Frequency Analyzer 100kHz to 960MHz MF/HF/VHF UHF Input,Signal Generator with 2.8 inch Touch Screen Battery

Portable TinySA Spectrum Analyzer,SEESII Handheld Tiny Frequency Analyzer 100kHz to 960MHz MF/HF/VHF UHF Input,Signal Generator with 2.8 inch Touch Screen Battery

Product ID: 445878113

Details

Brand
Seesii
Item Weight
1 Kilograms
Manufacturer
Seesii
Style
TinySA

💻USB PC control & firmware updates

📶100kHz-960MHz wide freq range

🔋2+ hours portable battery life

£153.81

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Description

📡 Tiny device, massive signal insight — own the spectrum wherever you go!

PORTABLE POWERHOUSE - Rechargeable battery delivers over 2 hours of uninterrupted handheld operation—freedom to test anywhere.
SEAMLESS PC INTEGRATION - Connect via USB for advanced control, data logging, and easy firmware upgrades—future-proof your toolkit.
INTUITIVE TOUCHSCREEN DISPLAY - 2.8-inch color touchscreen with 290 scan points for precise, real-time spectrum visualization.
ULTRA WIDE FREQUENCY COVERAGE - Analyze signals from 100kHz up to 960MHz with dual high-quality inputs for MF/HF/VHF and UHF bands.
BUILT IN SIGNAL GENERATOR CALIBRATION - Switch seamlessly between spectrum analysis and signal generation with automatic self-test calibration.

The SEESII Portable TinySA Spectrum Analyzer is a compact, handheld frequency analyzer covering 100kHz to 960MHz with dual inputs optimized for MF/HF/VHF and UHF bands. Featuring a 2.8-inch color touchscreen, built-in signal generator, rechargeable battery with 2+ hours runtime, and USB PC connectivity for control and firmware updates, it’s designed for professionals seeking precise, portable RF analysis and calibration on the go.

Specifications

ASIN	B08FB5XT7B
Are batteries included?	Yes
Batteries	1 Lithium Ion batteries required. (included)
Best Sellers Rank	#16,210 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #2 in Spectrum Analyzers
Brand	Seesii
Compatible Device	Computers (via USB), Antennas, RF Devices
Country of Origin	USA
Customer Reviews	4.6 4.6 out of 5 stars (480)
Date First Available	12 September 2020
Item Weight	1 kg
Item model number	TinySA
Lithium Battery Packaging	Batteries contained in equipment
Lithium battery energy content	1.85 Watt Hours
Lithium battery weight	0.15 Grams
Manufacturer	Seesii
Model number	TinySA
Net Quantity	1 Count
Number of Memory Sticks	1
Number of lithium ion cells	1
Package Dimensions	19.61 x 12.8 x 3.1 cm; 1 kg
Power Source	Battery Powered
Special Feature	Frequency Analyzer, Signal Generator, Spectrum Analyzer

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£153.81

Duties & taxes included

In stock

Sold byAmazon UKDelivered 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 UK.

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TrustScore 4.5 | 7,300+ reviews

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