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SDRstore.eu • 07/20/2026

TinySA Ultra vs TinySA Ultra Plus: Which Spectrum Analyzer Should You Buy?

The tinySA Ultra and tinySA Ultra Plus are compact handheld spectrum analyzers designed for RF signal inspection, interference hunting, transmitter checks, spectrum education, SDR troubleshooting, and basic signal-generator work. They look similar and share much of the same interface, but their frequency coverage and intended use are not identical.

The most important detail is that “tinySA Ultra Plus” refers to two different models: the ZS406 and the higher-frequency ZS407. A product listing that only says “Ultra Plus” is incomplete. Before buying, check the exact model number.

The original tinySA Ultra is normally identified as the ZS405. It remains a strong choice for HF, VHF, UHF, Sub-GHz, 2.4 GHz, and general RF work. The Ultra Plus ZS406 expands normal-mode coverage to 900 MHz and adds a larger battery, while the Ultra Plus ZS407 extends calibrated Ultra-mode operation to approximately 7.3 GHz and is the better choice for 5.8 GHz and 6 GHz measurements.

This guide compares tinySA Ultra ZS405 vs Ultra Plus ZS406 vs Ultra Plus ZS407, including frequency range, display, battery, phase noise, resolution bandwidth, signal-generator modes, high-frequency limitations, input safety, and which model provides the best value for different RF projects.

Browse the TinySA Ultra ZS405-style spectrum analyzer, TinySA Ultra Plus ZS406, TinySA Ultra Plus ZS407, spectrum analyzers and RF analysis tools, and request a formal quote from SDRstore.eu.

Quick Answer: Which TinySA Should You Buy?

User or project	Recommended model	Why
General RF beginner	TinySA Ultra ZS405	Good value for HF, VHF, UHF, Sub-GHz, 2.4 GHz, interference hunting, and learning.
433 MHz, 868 MHz, or 915 MHz work	Ultra Plus ZS406	Its normal mode reaches 900 MHz, covering 868 MHz directly without switching to Ultra mode.
5.8 GHz RF work	Ultra Plus ZS407	The ZS407 provides specified coverage beyond the ZS405 and ZS406 limits.
6 GHz WiFi-band visibility	Ultra Plus ZS407	Its 7.3 GHz range covers much of the 6 GHz wireless spectrum for signal presence and relative checks.
Longest field use	Ultra Plus ZS406 or ZS407	Both Plus models use a larger nominal 5000 mAh battery.
Lowest purchase cost	TinySA Ultra ZS405	Best when you do not need reliable coverage beyond approximately 5.3 GHz.
Best overall capability	Ultra Plus ZS407	Widest specified range and improved high-frequency signal-generation and phase-noise capability.

The simple recommendation: buy the ZS405 for affordable general RF work, the ZS406 for 868/900 MHz normal-mode coverage and longer field use, and the ZS407 if you genuinely need 5.8 GHz or 6 GHz measurements.

TinySA Ultra Plus Is Not One Model

There are two Ultra Plus versions:

TinySA Ultra Plus ZS406
TinySA Ultra Plus ZS407

The ZS406 and ZS407 share a similar enclosure, screen, interface, battery capacity, and menu structure, but their high-frequency hardware is different.

The ZS406 reaches approximately 5.4 GHz in Ultra mode. The ZS407 reaches approximately 7.3 GHz and includes improvements intended to make it more useful at higher microwave frequencies.

Do not buy based only on a title such as “TinySA Ultra+ 2025.” Check the exact model printed on the product, packaging, firmware information, and seller listing.

TinySA Ultra vs Ultra Plus Specifications

Feature	TinySA Ultra ZS405	Ultra Plus ZS406	Ultra Plus ZS407
Normal-mode frequency range	100 kHz–800 MHz	100 kHz–900 MHz	100 kHz–900 MHz
Specified Ultra-mode range	Up to approximately 5.3 GHz	Up to approximately 5.4 GHz	Up to approximately 7.3 GHz
Display	4-inch, 480×320	Approximately 4-inch, 480×320	Approximately 4-inch, 480×320
Points per sweep	Up to 450	Up to 450	Up to 450
Resolution bandwidth	Approximately 200 Hz–850 kHz	Approximately 200 Hz–850 kHz	Approximately 200 Hz–850 kHz
Nominal battery capacity	Approximately 3000 mAh	Approximately 5000 mAh	Approximately 5000 mAh
Sine-wave generator range	Up to approximately 800 MHz	Up to approximately 900 MHz	Up to approximately 900 MHz
Higher-frequency generator mode	Square-wave/test modes above normal range	Approximately 4.4–5.4 GHz depending on mode	Approximately 6.0–7.3 GHz depending on mode
MicroSD support	Yes	Yes	Yes
Audio output	Yes	Yes	Yes
Best use	General RF work below 5.3 GHz	Sub-GHz work and longer portable use	5.8 GHz and 6 GHz signal inspection

Specifications above describe the official model families. Performance in Ultra mode is not identical to normal-mode performance, and measurements become more dependent on calibration, signal level, harmonic mixing, attenuation, and instrument limitations at higher frequencies.

Frequency Range: The Main Difference

TinySA Ultra ZS405

The ZS405 covers 100 kHz–800 MHz in its strongest normal operating range. Ultra mode extends signal observation to approximately 5.3 GHz.

This is enough for many common applications:

HF and amateur radio bands
FM broadcast
Airband
VHF and UHF radio
315 MHz and 433 MHz devices
868 MHz and 915 MHz through Ultra-mode workflows
1090 MHz ADS-B
1575 MHz GNSS-band interference checks
2.4 GHz WiFi, BLE, and Zigbee visibility
Many signals below approximately 5.3 GHz

TinySA Ultra Plus ZS406

The ZS406 extends the normal-mode range from 800 MHz to 900 MHz. This sounds like a small change, but it is useful for European 868 MHz ISM, LoRa, Meshtastic, industrial telemetry, and other signals near 900 MHz.

Normal mode generally provides a more straightforward measurement path than the harmonic-based Ultra-mode architecture, so direct 868 MHz coverage is a meaningful advantage for Sub-GHz users.

Its Ultra-mode upper range changes only slightly, from approximately 5.3 GHz to 5.4 GHz. Therefore, the ZS406 is not a major upgrade for users focused on 5 GHz or 6 GHz signals.

TinySA Ultra Plus ZS407

The ZS407 extends Ultra-mode coverage to approximately 7.3 GHz. This is the model to choose when you need to inspect:

5.8 GHz ISM signals
5 GHz WiFi upper channels
Parts of the 6 GHz WiFi spectrum
6 GHz laboratory signals
Microwave links below 7.3 GHz
Higher-frequency oscillators and test sources
RF leakage around modern wireless hardware

The ZS407 can show that a signal is present and support relative field comparisons in these bands. It is not a vector signal analyzer and cannot replace professional WiFi 6E/7 modulation analysis, error-vector-magnitude measurement, channel-power certification, or regulatory testing.

Is TinySA Ultra Plus a Millimeter-Wave Analyzer?

No. Neither the ZS406 nor ZS407 should be described as a true mmWave spectrum analyzer.

The ZS407 reaches approximately 7.3 GHz in its specified Ultra mode. Millimeter-wave systems are normally associated with much higher frequencies, commonly starting around 30 GHz.

The ZS407 is better described as a compact handheld microwave spectrum analyzer for signals below approximately 7.3 GHz. Calling it a 5G mmWave analyzer can mislead buyers because it does not cover common cellular mmWave bands such as 24 GHz, 26 GHz, 28 GHz, or 39 GHz.

Normal Mode vs Ultra Mode

Normal mode and Ultra mode do not provide identical performance.

Normal mode

Normal mode is the preferred range for the most reliable everyday measurements. It generally offers:

More direct signal conversion
Better calibrated amplitude behavior
Fewer harmonic ambiguities
Simpler interpretation
Better confidence for relative RF checks

Ultra mode

Ultra mode extends frequency coverage through a different conversion and harmonic-mixing process. It is extremely useful for the price, but users must understand its limitations.

Possible Ultra-mode limitations include:

Higher noise floor at the upper end of the range
Reduced dynamic range
Images or harmonic ambiguity
Slower or more complex sweeps
Greater dependence on signal level
Less amplitude confidence than a professional calibrated analyzer

Ultra mode is best for finding signals, comparing relative levels, checking whether an oscillator or transmitter is active, and investigating interference. It should not be treated as laboratory-grade proof of exact signal power or regulatory compliance.

ZS406 vs ZS407: Is the ZS407 Worth More?

The ZS407 is worth the higher price when the additional frequency range solves a real requirement.

Buy the ZS407 if you work with:

5.8 GHz analog or digital links
5 GHz wireless systems near the upper band edge
6 GHz WiFi signal-presence checks
Microwave oscillators between 5.4 and 7.3 GHz
Higher-frequency RF leakage or interference
Research and teaching that needs broader coverage

Buy the ZS406 instead if:

Your work stops below approximately 5.4 GHz.
You mainly monitor 433, 868, 915, 1090, 1575, or 2400 MHz.
You want the larger battery but do not need 6 GHz coverage.
You prefer the lower-cost Plus model.
You already have another instrument for 5.8 GHz and above.

The ZS407 is not automatically better for every measurement. Below 900 MHz, the practical experience is similar enough that many users will not benefit from paying more unless they need the added high-frequency range or improved high-frequency performance.

Display and User Interface

The TinySA Ultra and both Ultra Plus models use a similar four-inch touchscreen format with approximately 480×320 resolution and up to 450 displayed sweep points.

Common interface features include:

Touchscreen control
Jog switch or physical control
Center-frequency and span settings
Start and stop frequency
Markers and peak search
Max hold
Waterfall display
Reference level
Attenuation control
Optional LNA
Resolution-bandwidth selection
MicroSD screenshots and data storage
USB PC control

Do not upgrade from a ZS405 to an Ultra Plus only for a significantly different interface. The user experience remains broadly familiar.

Battery Differences

The original ZS405 generally uses a nominal battery capacity around 3000 mAh, while the ZS406 and ZS407 use approximately 5000 mAh batteries.

The larger battery is useful for:

Interference hunting around buildings
Outdoor antenna-site work
Facility RF surveys
Portable transmitter checks
University field exercises
Longer monitoring sessions

Actual runtime depends on screen brightness, battery condition, LNA use, firmware, sweep settings, USB connection, temperature, and how frequently the display is updated. Battery-capacity claims should not be interpreted as guaranteed operating hours under every condition.

Resolution Bandwidth and Sweep Detail

All three models offer selectable resolution filters from approximately 200 Hz to 850 kHz.

Narrower RBW is useful for:

Separating nearby signals
Inspecting narrow carriers
Lowering the displayed noise floor
Examining close-in spurs

Wider RBW is useful for:

Faster sweeps
Wideband signal discovery
Short RF bursts
General interference hunting

The 450 sweep points are useful for a handheld analyzer, but they also explain why short or frequency-hopping events can be missed across a wide span. A swept analyzer only examines individual points during each sweep.

For transient, burst, frequency-hopping, or continuously changing signals, consider:

Reducing span
Using max hold
Using zero-span mode
Using an SDR with IQ recording
Using a professional real-time spectrum analyzer

Phase Noise Differences

Phase noise affects how clearly the analyzer can inspect weak signals close to a strong carrier. Lower phase noise is better.

The official model comparison shows the ZS407 with improved phase-noise performance compared with the ZS405, while the ZS406 remains closer to the original Ultra architecture.

This can make the ZS407 more useful for:

Inspecting close-in spurs
Comparing oscillator quality
Looking at weak signals near stronger carriers
Higher-frequency signal-generator checks

Despite the improvement, use a professional spectrum analyzer or phase-noise test system when the result must be precise, traceable, or included in a formal engineering report.

Signal Generator Comparison

All three devices include signal-generator functionality when they are not being used as spectrum analyzers.

Generator feature	ZS405	ZS406	ZS407
Clean sine-wave range	Approximately 100 kHz–800 MHz	Approximately 100 kHz–900 MHz	Approximately 100 kHz–900 MHz
Higher-frequency output	Square-wave or RF test output to several GHz	Square-wave/test output to approximately 5.4 GHz depending on mode	Square-wave/test output to approximately 7.3 GHz depending on mode
AM/FM modulation	Supported	Supported	Supported
Sweep output	Supported	Supported	Supported

The ZS407 is the best generator option of the three when higher-frequency output is required. However, higher-frequency output modes may contain strong harmonics or spurs and should not be confused with a clean professional microwave signal generator.

Use the built-in generator for:

Receiver checks
Educational demonstrations
Simple filter comparisons
SDR input validation
Controlled cabled RF tests

Use a professional signal generator when you need accurate level, low phase noise, high spectral purity, traceable calibration, or standards-based modulation.

Can TinySA Ultra Plus Analyze WiFi?

It can show WiFi-band activity, but “analyze WiFi” can mean several different things.

It can help with:

Seeing whether a WiFi channel is active
Comparing relative signal levels
Checking general band occupancy
Finding strong local interference
Comparing antenna positions
Confirming that a 2.4, 5, or 6 GHz transmitter is active

It cannot provide:

WiFi packet decoding
SSID or client identification
Channel-utilization statistics from packets
Error vector magnitude
Modulation-quality analysis
Standards-compliant transmit measurements
Real-time capture of every short WiFi burst

Use a monitor-mode WiFi adapter for packet-level analysis and a professional vector signal analyzer for detailed modulation measurements.

Can TinySA Ultra Plus Analyze 5G?

It can display some sub-7.3 GHz RF activity, including certain cellular and private-network bands within its frequency range. It cannot analyze common cellular mmWave bands or decode 5G network information.

Use it for:

Basic signal-presence checks
Relative field-strength comparisons
Interference discovery
Laboratory oscillator or signal-source checks

Do not treat it as a substitute for:

5G vector signal analysis
3GPP-compliant RF testing
Cell identification and network decoding
mmWave measurements
Certified base-station or UE testing

Input Safety Is the Same Priority on Every Model

The tinySA input is sensitive. The listed absolute maximum with no internal attenuation is generally around +6 dBm. Best measurement performance usually requires a much lower input level.

Never connect an unknown transmitter directly to the analyzer.

Safe-input checklist

Determine transmitter power before connecting it.
Use external attenuators for conducted measurements.
Start with internal attenuation enabled.
Use a dummy load when radiation is unnecessary.
Use an RF power meter if the level is unknown.
Use a DC block if bias voltage may be present.
Keep transmit antennas away from the analyzer input when possible.
Store the analyzer with the input protected.

A stronger frequency range does not mean a stronger input. The ZS407 still needs the same careful RF handling as the ZS405 and ZS406.

TinySA Ultra vs Ultra Plus for Common RF Projects

Project	ZS405	ZS406	ZS407
FM broadcast and VHF	Excellent	Excellent	Excellent
433 MHz devices	Excellent	Excellent	Excellent
868 MHz LoRa/Meshtastic	Usable through Ultra-mode workflow	Better direct normal-mode choice	Better direct normal-mode choice
915 MHz devices	Ultra mode	Just above normal-mode range	Just above normal-mode range
1090 MHz ADS-B	Good for visibility	Good for visibility	Good for visibility
1575 MHz GNSS interference	Useful for basic checks	Useful for basic checks	Useful for basic checks
2.4 GHz WiFi/BLE	Useful	Useful	Useful
5.8 GHz links	Outside specified upper range	Outside specified upper range	Recommended model
6 GHz WiFi visibility	No	No	Useful for basic spectrum visibility
Formal compliance testing	No	No	No

Should Existing TinySA Ultra Owners Upgrade?

Keep the ZS405 if:

You mainly work below 800 MHz.
You use it for FM, VHF, UHF, 433 MHz, or general RF learning.
Ultra-mode operation to approximately 5.3 GHz is enough.
Battery runtime is acceptable.
You already own a separate analyzer or SDR for 5.8 GHz.

Upgrade to ZS406 if:

868 MHz is a major part of your work.
You want it covered in normal mode.
You need longer portable operation.
You want the newer model but do not need 6 GHz.

Upgrade to ZS407 if:

You need 5.8 GHz measurements.
You work around the 6 GHz WiFi spectrum.
You want the widest specified frequency range.
You need improved high-frequency generator capability.
You want the most capable tinySA model available.

For most existing ZS405 owners, the ZS406 is a modest upgrade. The ZS407 is the more meaningful upgrade because it opens a genuinely new frequency range.

Authentic Models, Firmware, and Clone Risk

The tinySA project has been widely copied. Some clones may look similar but use different hardware, poor RF components, incompatible firmware, inaccurate calibration data, or unsupported modifications.

Before buying, check:

Exact model number: ZS405, ZS406, or ZS407
Seller reputation and warranty
Whether official firmware can be installed
Whether the device passes built-in self-test
Whether calibration data is present
Frequency-range claims that match official documentation
Included microSD card, cables, adapter, and antenna

Be cautious of listings that claim:

Professional laboratory accuracy without qualification
True real-time spectrum analysis
5G mmWave coverage
WiFi packet decoding
Certified EMI compliance measurements
Guaranteed extreme battery runtime

TinySA Ultra Plus vs Professional Spectrum Analyzer

The Ultra Plus models expand what a low-cost handheld analyzer can do, but they remain budget swept analyzers.

Requirement	TinySA Ultra Plus	Professional analyzer
Signal-presence checks	Very useful	Excellent
Portable interference hunting	Very useful	Excellent but more expensive
Basic harmonic screening	Useful	More accurate and higher dynamic range
6 GHz signal visibility	ZS407 only	Available on suitable models
Real-time transient capture	Limited	Available on real-time models
Vector modulation analysis	No	Available on signal analyzers
Traceable amplitude accuracy	Limited	Much better
Formal EMI/compliance work	No	Correct calibrated equipment required

Read: TinySA vs Professional Spectrum Analyzer: What Can a TinySA Ultra Really Do?.

Best Model by Buyer Type

Best for beginners: TinySA Ultra ZS405

The original Ultra provides the core tinySA experience at the lowest cost. It is enough for learning center frequency, span, RBW, attenuation, markers, max hold, interference hunting, and transmitter checks.

Best for Sub-GHz users: Ultra Plus ZS406

The 900 MHz normal-mode range makes the ZS406 attractive for 868 MHz LoRa, Meshtastic, industrial telemetry, remote controls, and European ISM monitoring.

Best for advanced hobbyists: Ultra Plus ZS407

The ZS407 is the best choice for buyers who expect to work with 5.8 GHz links, 6 GHz wireless systems, microwave oscillators, or broader RF research.

Best for universities: Mix ZS406 and ZS407

A teaching lab can use ZS406 units for general student benches and keep one or more ZS407 units for higher-frequency demonstrations.

Best for RF product teams: ZS407 plus professional tools

The ZS407 is useful for portable troubleshooting and early screening, but product teams should combine it with NanoVNA, RF power meters, attenuators, SDRs, and professional analyzers when measurement confidence matters.

Recommended Hardware Packages

Package 1: Beginner RF analyzer kit

TinySA Ultra ZS405
Basic antenna set
Fixed attenuators
50-ohm dummy load
Short SMA cables and adapters

Best for: RF beginners, students, SDR users, amateur radio, and general interference checks.

Package 2: Sub-GHz and LoRa monitoring kit

TinySA Ultra Plus ZS406
433 MHz antenna
868 MHz antenna
915 MHz antenna where regionally appropriate
Directional antenna
RTL-SDR or HackRF receive monitor
Attenuator set

Best for: LoRa, Meshtastic, industrial IoT, remote controls, and Sub-GHz interference hunting.

Package 3: 5.8 GHz and 6 GHz visibility kit

TinySA Ultra Plus ZS407
5.8 GHz antenna
6 GHz-capable antenna
Known-good microwave SMA cables
External attenuators
HackRF Pro or another SDR for complementary IQ capture where supported

Best for: 5.8 GHz links, upper 5 GHz WiFi, basic 6 GHz WiFi visibility, and microwave laboratory work.

Package 4: RF product-testing bench

TinySA Ultra Plus ZS407
Professional spectrum analyzer where required
NanoVNA-H4 or higher-frequency VNA
RF power meter
Signal generator
Attenuators and dummy loads
SDR receiver
Near-field probes
Shield box

Best for: IoT development, RF troubleshooting, pre-compliance screening, wireless product validation, and university labs.

Purchase-Order Justification Examples

TinySA Ultra ZS405 justification

TinySA Ultra is required as an affordable handheld spectrum analyzer for RF education, signal-presence checks, interference hunting, SDR troubleshooting, transmitter screening, and general spectrum monitoring below approximately 5.3 GHz.

TinySA Ultra Plus ZS406 justification

TinySA Ultra Plus ZS406 is required for portable RF monitoring with direct normal-mode coverage through 900 MHz, including 868 MHz LoRa, Meshtastic, industrial telemetry, and Sub-GHz interference investigations.

TinySA Ultra Plus ZS407 justification

TinySA Ultra Plus ZS407 is required for portable spectrum visibility through approximately 7.3 GHz, including 5.8 GHz links, 6 GHz wireless-band checks, microwave signal validation, RF education, and early-stage product troubleshooting.

RF safety accessory justification

External attenuators, dummy loads, RF power meters, DC blocks, and known-good cables are required to protect the analyzer input, verify signal levels, prevent overload, and create safe repeatable RF measurements.

Request a Quote for TinySA Spectrum Analyzers

Universities, RF laboratories, amateur-radio groups, cybersecurity teams, IoT companies, telecom labs, wireless product developers, and public-sector buyers can request a formal quotation directly from SDRstore.eu.

Use the Add to Quote button on product pages or the document icon on product cards. Add TinySA Ultra ZS405, Ultra Plus ZS406, Ultra Plus ZS407, antennas, attenuators, RF power meters, dummy loads, NanoVNA, SDR receivers, cables, adapters, and project requirements to one quote request.

A quote request is useful when you need:

Multiple spectrum analyzers for a university lab
Sub-GHz monitoring kits
5.8 GHz or 6 GHz signal-inspection equipment
RF cybersecurity lab hardware
Product-development test benches
Antennas and attenuators for specific frequency bands
Formal pricing for business or public procurement

Read the SDRstore.eu quote-request guide.

Related SDRstore.eu Guides

Official and Technical Resources

Final Recommendation

Choose the TinySA Ultra ZS405 if you want the lowest-cost four-inch tinySA for general RF work and do not need specified measurements above approximately 5.3 GHz.

Choose the Ultra Plus ZS406 if your work focuses on 868 MHz, Sub-GHz IoT, LoRa, Meshtastic, or portable field use. Its 900 MHz normal-mode limit and larger battery are its most useful improvements.

Choose the Ultra Plus ZS407 if you need 5.8 GHz, 6 GHz WiFi-band visibility, higher-frequency signal generation, or the widest available tinySA frequency range. It is the most capable model and the most meaningful upgrade from the original Ultra.

None of these devices replaces a professional calibrated spectrum analyzer, real-time analyzer, vector signal analyzer, or certified EMI receiver. They are best understood as exceptionally capable portable RF visibility tools for their size and price.

FAQ

What is the difference between TinySA Ultra and TinySA Ultra Plus?

The original TinySA Ultra ZS405 covers 100 kHz–800 MHz in normal mode and approximately 5.3 GHz in Ultra mode. Ultra Plus models extend normal mode to 900 MHz, use a larger battery, and offer either approximately 5.4 GHz coverage on the ZS406 or 7.3 GHz coverage on the ZS407.

Are there two TinySA Ultra Plus models?

Yes. The Ultra Plus is available as the ZS406 and ZS407. The ZS406 reaches approximately 5.4 GHz, while the ZS407 reaches approximately 7.3 GHz.

Is the TinySA Ultra Plus ZS407 worth it?

It is worth it when you need 5.8 GHz, 6 GHz wireless-band visibility, wider microwave coverage, or improved high-frequency performance. For work below 5.4 GHz, the ZS406 may provide better value.

Is the ZS406 better than the original TinySA Ultra?

It is a modest upgrade. Its main advantages are 900 MHz normal-mode coverage and a larger battery. Its Ultra-mode upper limit is only slightly higher than the original ZS405.

Can TinySA Ultra Plus measure 6 GHz WiFi?

The ZS407 can display signal activity in much of the 6 GHz WiFi range because it reaches approximately 7.3 GHz. It cannot decode WiFi packets or perform professional modulation-quality and compliance measurements.

Can the ZS406 measure 5.8 GHz?

The ZS406’s specified Ultra-mode range ends near 5.4 GHz, so it is not the correct choice for dependable 5.8 GHz work. Choose the ZS407 instead.

Is TinySA Ultra Plus a mmWave spectrum analyzer?

No. The ZS407 reaches approximately 7.3 GHz, while common mmWave systems operate at much higher frequencies. It should be described as a handheld microwave spectrum analyzer, not a mmWave analyzer.

Can TinySA Ultra Plus replace a professional spectrum analyzer?

No. It is useful for signal discovery, interference hunting, relative measurements, education, and early troubleshooting. Professional calibrated equipment is still needed for high dynamic range, phase-noise testing, compliance, production, and formal reports.

Which TinySA is best for LoRa and Meshtastic?

The ZS406 or ZS407 is preferable for European 868 MHz projects because normal mode extends to 900 MHz. The original ZS405 can still observe these signals using its extended operating mode.

Which TinySA has the best battery?

The Ultra Plus ZS406 and ZS407 use a larger nominal 5000 mAh battery compared with the approximately 3000 mAh battery in the original ZS405. Actual runtime depends on settings and operating conditions.

Can TinySA Ultra Plus generate signals?

Yes. Both Ultra Plus models include sine-wave, higher-frequency test-output, sweep, AM, and FM generator functions. The ZS407 offers the widest high-frequency output range, but it does not replace a clean calibrated professional RF generator.

Can SDRstore.eu quote multiple TinySA analyzers for a lab?

Yes. Use the Add to Quote button on product pages or the document icon on product cards. Add ZS405, ZS406, ZS407, antennas, attenuators, RF power meters, dummy loads, cables, and project notes so the complete lab setup can be quoted together.

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