Please, see the frequently asked questions considering wireless testing below. If your question is missing, do not hesitate to contact us.


Radio Equipment
When is my product considered a radio product?

Radio equipment is defined in Article 2.1(1) of the RED as an electrical or electronic product, which intentionally emits and/or receives radio waves for the purpose of radio communication and/or radio determination, or an electrical or electronic product which must be completed with an accessory, such as antenna, so as to intentionally emit and/or receive radio waves for the purpose of radio communication and/or radio determination. 

Testing radio equipment
I need to test my product. How does the process work?

Just contact us, our expert will have some specific questions for you. Then you just need to send the product to our test laboratory, Elektroniikkatie 17, 90590 Oulu. We will do the needed tests and send the product back to you. You will get the report to your email. 

I want to conduct test by myself. Do you sell test equipment?

Generally speaking, Verkotan is not a hardware vendor but a service provider. Ask us about our obsolete testing gear for your R&D purposes.

Can I be present when Verkotan is testing my product?

Sure! You are welcome to our testing laboratory and our experts are glad to tell you about the testing process. Naturally, we take care of the security and confidentiality of our customer’s products.  

During the COVID-19 situation, we take all the needed actions to protect our staff and customers to the best of our abilities.

I sent a request for a quotation. When can I expect a response?

Thank you for your request for a quote. We will get back to you within 3 business days. 

CE, FCC and ISED markings
What are CE, FCC and ISED markings?

CE marking is required for many manufactured products before they can be sold in the European Economic Area. With CE marking manufacturer can indicate that the product meets the necessary safety, health, and environmental protection requirements and can be sold within the European Economic Area. More about CE marking.  

Radio equipment sold in the US market must be authorized by FCC and Canada by ISED. When an electronic device has a CE, FCC, or ISED certificate, it means the product has been tested to comply with specific standards and it has been approved. 

Can I get pre-compliance SAR testing already during product development?

Yes! We recommend conducting SAR testing early enough. SAR testing can be done in all stages during the product development cycle, but an early-stage SAR testing allows you to control and modify products more easily which saves money.  

SAR testing
What is Specific Absorption Rate SAR/RF exposure testing?

Specific Absorption Rate (SAR) measures the amount of RF energy absorbed by a human or animal body. SAR testing is done to make sure that radio products are safe to use. 

Is SAR/RF exposure testing mandatory for my product?

All radio products need RF exposure assessment to make sure they are safe to use. This assessment can be done by RF exposure evaluationEMF measurements, or SAR testing. 

Specific Absorption Rate (SAR) measures the amount of RF energy absorbed by a human or animal body. SAR testing must be done on all wireless devices that have radiating parts closer than 20 cm to the human body or head and have significant radiation power.

Devices with low power make an exception. In Europe, all devices with the power of 20 mW or higher, need their SAR value to be evaluated. In Canada and the USA, whether the device’s SAR value needs to be evaluated depends on the distance between the user and the device, the power, and the frequency, in which the product radiates. The wireless device is a radio transmitter and receiver and therefore also needs to be tested for SAR. 

What information I need to provide for arranging SAR/RF exposure testing?

Before we are able to give you a precise offer, we would like to know a few things:

  • Which certifications are needed; CE/FCC/ISED..?
  • Size of the DUT, H x L x W?

If possible, please provide an image of the device with antenna locations and dimensions.

  • What frequency bands and radio access technologies does the device support?
  • If the device supports WLAN, how many antennas configurations can be used at 2.4 GHz band and at 5 GHz band?
  • Can BT and WLAN work at the same time or are they using the same antenna?
  • Is the transmission continuous or does the DUT use a duty cycle?
  • Can DUT be used against ear, e.g. calls?
  • How is DUT meant to be used against the body; e.g. display away from the body with clip, hanging from a lanyard, DUT can transmit when it is positioned in a pocket…? An illustration of a typical use case is good.

Let us also know the suitable time slots for you and we will take care of everything else.

What samples do I need for SAR/RF exposure testing?
  • Sample for conducted power testing (with cables or connectors), body-worn accessory if available, charger, additional batteries if batteries are replaceable, any changeable parts; e.g. different straps, covers, etc. 
  • Unmodified sample for SAR testing, with test mode, enabled if present. If the sample runs out power quickly, then more samples are needed as samples need to be charged often. 
  • To control transmission, DUT needs to have a slot for SIM (to able to connect to tester) or have a control SW to establish the transmission.  
  • The SW needs to be provided with DUT to establish a connection to e.g. WLAN, BT, RF ID. 
  • If the product has E-SIM, it needs to be configured as testSIM or an external SIM slot needs to be added to DUT. (For cellular devices) 
  • For testing of WLAN, a control SW that enables the selection of channel, output power, the data rate is needed. Also, the duty cycle needs to be adjusted close to 100%. 
  • The maximum output power + production tolerance for each band for the product needs to be provided. 
  • The DUT for SAR testing needs to be able to run on full output power at a minimum of around 20 minutes, depending on DUTs size (large DUTs take longer test time). The sample needs to transmit continuously on full power during the whole test, at least 20 min. 
When is the next available test slot for SAR testing?

We make sure that our customers get test time when needed, even in a short time frame. Our SAR testing laboratory has a good capacity for your product testing. We plan you all the right tests at the right time. Contact us and book a time slot for SAR testing. 

What is the price for SAR/RF exposure

The price depends on the frequencies tested and the use cases, for example, is the device worn on the body, etc. To get a precise offer, please see the question “What information I need to provide for arranging SAR/ RF exposure testing?” and request a quote.

EMF testing
What is Electromagnetic Field (EMF) testing?

When in use, electrical equipment emits electromagnetic fields. EMF testing measures the amount of electromagnetic exposure a product emits to its users. There are different regional limits set by regulatory bodies for exposure to EMF. EMF testing is used to assess the levels of exposure and compare them to reference levels. Compliance with EMF requirements is obligatory in most markets including Europe, the US, and Canada.

What products can be EMF tested?

Verkotan can EMF test for example wireless chargers, vehicle immobilizers, NFC (near-field communication), etc. Typically, EMF testing is done when SAR testing is challenging to conduct.

Can Verkotan measure EMF in my building or property?

If your real estate company or city needs EMF measurements, please contact us and request a quote.


OTA testing
What is OTA testing?

OTA (over-the-air) testing is used to evaluate the radiated performance and reliability of any wireless product in the real world. Testing is done in the chamber where the device under the test is placed. The conditions of the real-world are created artificially to see how the device responds in different situations. 

What products commonly require OTA testing?

Radio use is regulated in countries worldwide by national legislation. Manufacturers of radio products, capable of transmitting and receiving RF waves need to follow this legislation and acquire the necessary certification to bring their product to market.

OTA testing highlight potentially costly design errors and allows for benchmarking between product variants, and secures meeting rigorous product development schedules.

These products include e.g.

  • Internet-of-things products
  • Smartphones
  • Portable computers
  • Utility management products
  • Automation/monitoring products
  • Fleet management systems
  • Robotics
  • Wearables
  • Mobile payment systems
  • Inventory management systems
  • Traffic control systems
  • Connected health products
  • Positioning systems (GNSS)
  • Vehicular wireless systems