How far away can the freq source be?

It's dependent on source output power. I mainly use it for verifying ENG wireless microphones during press check-ins. Don't typically get a reading until under 20" away from the TX source.

Does it come with both the vhf and uhf antena?

This unit comes with (1)one 5" universal antenna that seems to cover the vhf/uhf frequencies very well, it even works well down to 72 MHz (model aircraft radio) not so much at 2.4gHz range.

Could I use this to find out Hz vibration plate vibrating at?

This item only picks up RF frequencies. Vibration plate is an audio wave form I believe? You would need a sound wave sensor to see the frequency such as a Accelerometer. This is a sensor that measures the dynamic acceleration analyzer of a physical device as a voltage & frequency.

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SF401 Plus 27Mhz-3000Mhz Radio Portable Frequency Counter Meter with CTCCSS DCS Decoder

Product ID: 69765552

Details

Brand
Surecom
Color
Black
Frequency Range
27Mhz-3000Mhz
Item Weight
3.84 ounces
Number of Batteries
1 AA batteries
Number of Channels
128

📡27MHz-3000MHz wide freq range

🔋Built-in Li-ion USB rechargeable

⚙️±2~4ppm TCXO accuracy

¥14307

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Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

📡 Stay tuned, stay ahead — the frequency counter that never misses a beat!

COMPLETE READY TO GO KIT - Includes UHF antenna, USB charger, and AC adapter—everything you need to stay connected and ahead in your radio game.
PRECISION FREQUENCY TRACKING - Pinpoint frequencies from 27MHz to 3000MHz with ultra-stable TCXO tech for ±2~4ppm accuracy, ensuring your signals are always crystal clear.
RAPID RESPONSE SMART POWER - Get frequency readings in just 0.2 seconds with auto power-off settings (1-9 mins) to maximize battery life during critical fieldwork.
COMPACT PORTABLE POWERHOUSE - Weighing just 113g with a sleek color LCD and intuitive 4-button control, it’s designed to go wherever your radio adventures take you.
SEAMLESS ANALOG DIGITAL DECODING - Decode CTCSS/DCS tones effortlessly across analog and digital modes, making it the ultimate tool for pro-level radio diagnostics.

The Surecom SF401 Plus is a portable frequency counter meter covering a broad 27MHz to 3000MHz range, equipped with a temperature-compensated crystal oscillator (TCXO) for ±2~4ppm accuracy. It features a color LCD, CTCSS/DCS decoding for analog and digital signals, rapid 0.2s response time, and a rechargeable Li-ion battery with USB charging. Lightweight and compact, it’s ideal for professionals needing precise frequency measurement and signal decoding on the go.

Specifications

ASIN	B01NA0957P
Additional Features	Portable
Best Sellers Rank	#100,429 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #6 in Frequency Counters
Brand	Surecom
Color	Black
Compatible Devices	Two-way radios or walkie-talkies within the 27Mhz-3000Mhz frequency range, particularly UHF band radios and those manufactured by Surecom
Customer Reviews	4.3 out of 5 stars 332 Reviews
Item Weight	3.84 ounces
Manufacturer	Surecom
Mfr Part Number	4350441046
Model Number	4350441046
Number of Batteries	1 AA batteries required.
Number of Channels	128
Number of Packs	1
Special Feature	Portable
Talking Range Maximum	5 miles
Tuner Type	UHF
UPC	712383659576
Unit Count	1 Count
Water Resistance Level	Water Resistant
Waterproof Rating	IP66

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¥14307

Duties & taxes included

In stock

Sold byAmazon JapanDelivered 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 Japan.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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