Questions tagged [fcc]

is the Federal Communications Commission and regulates the RF spectrum, broadband and public safety.

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35 views

FCC EIRP test results different than other countries

We have an issue with regulatory testing where our lab reported EIRP varies significantly between separate labs who have tested for FCC and another country. The test methods are quite different. The ...
4
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3answers
141 views

Why are “devices utilized exclusively in any transportation vehicle” exempted from FCC compliance testing?

I was researching whether do we need to do FCC compliance testing for a device we developed for a client. Curiously, it seems to be in the list of exemptions (passage taken from here): A digital ...
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1answer
48 views

Can we install product above FCC test power level declared in certification report

we have a product which has radio of 1W maximum output power , we have sent product for FCC through party lab, and they certified the product with 18 dbm only. So we get the certificate with only 18 ...
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3answers
105 views

Viable alternative for expensive MLCC capacitor?

I'm thinking of building and selling a product which uses a DC-DC isolator. I've been prototyping with Recom RI3 3W Isolated DC-DC Converter Through Hole, Vin 5 V dc, Vout 9V dc, I/O isolation 1kV. ...
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2answers
67 views

Simplest option for generating audio tones?

I'm looking for the simplest way to generate audio tones. Something like a square or sine wave, but I want multiple tone options. For example, two quick beeps, one at 440Hz, one at 1Khz. The tones ...
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0answers
29 views

EN 300 328 Receiver (RX) Blocking | BLE DTM Implementation with Signaling Analyzers?

We are working through a Nordic NRF 52832 certification, and are getting the device CE tested. We are running into some issues getting our device connected to the R&S CMW 500 signaling analyzer ...
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3answers
92 views

Disable RC oscillator in ATmega328 for FCC compliance

With respect to the topic below, I was trying to find where in the AVR documentation does it say the 8 MHz RC internal oscillator is "disabled" when CKSEL is selected to a different source? I am ...
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0answers
54 views

How does FCC define “co-located tranmitters”? What testing is needed for a product using multiple approved modules?

I'm planning a design that will use a Raspberry Pi and an XBee PRO 900-HP, both of which are certified modules. I am not an RF engineer and this would need to have the absolute bare minimum of ...
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0answers
34 views

Power spectral density FCC vs CE 300 328 difference

Both FCC and CE 300 328 has power spectral density test, may be with little difference. We bought 2.4ghz radio which has FCC pass report with 30dbm power and its pass the power spectral density test. ...
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1answer
73 views

EN 300 328 CE radio certification with power limit

We have developed product for Malesia country, where we need local SIRIM certificate. RF module we used in our product is 2.4Ghz wifi mesh, with max 30dbm (1 watt) output power capacity. To get ...
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1answer
56 views

Wifi/BT on Realtek 8723 - Is FCC, CE certification needed for Wifi if we disable Wifi and use only Bluetooth?

I'm planning on importing a generic mini pc that comes with an onboard Realtek 8723 for Wifi and Bluetooth. We will need to get it FCC, CE, IC certified before we sell it in North America/EU. Getting ...
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3answers
162 views

FCC Re-certification if the brand name and outer casing changed?

I'm considering importing Wifi enabled electronics that are FCC and CE certified by the manufacturer in China. We will sell them in US/Europe under our company name (no mention of OEM). Does the FCC ...
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3answers
235 views

EMC Testing, Radiated Emissions

I recently had one of my new rechargeable Lithium Ion products tested (RE pre-compliance scan) and I had a few frequencies (around 150 MHz) pop (7-10 dBuV/m) above the FCC and CISPR limits. I'm not ...
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1answer
142 views

Do the FCC's regulations make any sense?

I have read on the following page that the maximum permissible exposure MPE standard FCC have is 1 mW/cm2 for RF wave above 1500 MHz for general population. http://www.rfcafe.com/references/electrical/...
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2answers
100 views

Legal to use non FCC-approved radio devices purchased locally?

Does anyone know if it's legal to use non FCC-approved radio devices which are purchased locally? For instance, if the device is purchased from a local eBay seller, is it still legal to use it in any ...
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1answer
294 views

FCC verification for PCB business card?

FCC regulations apply to unintentional radiator devices, but provide exceptions for subassemblies, including this one: CPU boards, as defined in §15.3(bb), other than those used in personal computers,...
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0answers
340 views

Do I need to get a device certified by the FCC if it uses the ESP32/8266? [duplicate]

I plan on making a device that the user can control with their phone via a WiFi connection to an ESP8266 or ESP32. If I end up selling this device, will I need to get it certified? The ESP32/8266 has ...
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3answers
83 views

Compliance Testing Strategies

How do people / companies deal with compliance testing (CE, UL, FCC, etc.) what I would call "platform-oriented and modular" products? The idea being that a family of products might exist, where a ...
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1answer
545 views

Can you reuse FCC certification from a pre-certified RF chip and antenna for a new product?

I am in the process of designing a board that turns a Gameboy into a Bluetooth controller. Due to size constraints, I would like to use the ESP32-PICO-D4 standalone chip by Espressif instead of one of ...
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2answers
454 views

FCC Co-Location of antennas

I am looking at creating a device within regulations for a medical environment with two Txing antennas, BLE (cypress FCC certified module) and 915MHz ST Spirit1 FCC certified module. I have found ...
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1answer
155 views

I cant seem to figure out FCC or any testing for that matter

this website has a wealth of information and after browsing for quite a while I cant seem to answer my question. I am interested in selling an LED PCB light in the US. It operates on 24v1amp DC ...
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1answer
228 views

Arduino Cellular Shield EMC Testing for FCC

I have designed an Arduino shield that uses an FCC pre-certified and PTCRB cellular module and I'm wondering about EMC testing and FCC compliance. However, the main concern here is that I am using a ...
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1answer
77 views

Designing an electronic product for the american market, need to find a DC to DC converter with FCC certification [closed]

Can someone please explain the basics of FCC certification for electronic products, my boss has just dropped this task on me to find a fcc approved dc to dc converter for our product . Does FCC only ...
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0answers
117 views

Using Pre-Certified (FCC) Emitter - do I need unintentional transmission testing?

I'm making a device - a keyboard - that uses a pre-certified RF module. I host this device on my custom PCB, and have programmed it to receive the keystrokes (from switches on the host PCB) and ...
4
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1answer
282 views

FCC Part 15 Class B Declaration of Conformity (DoC)

I'm familiar with Part 15 FCC testing for intentional radiators (3 meter limits of certain power, must be filed with FCC, requires accredited lab), but I'm a little unclear on the Class B ...
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2answers
97 views

How much interference is allowed to pass FCC verification testing?

I have a small electronic device that I'm considering bringing to market. It doesn't have any features like wifi or bluetooth, so one of the prerequisite steps before I can sell it is to ensure it ...
52
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6answers
8k views

Does my Arduino-based device need FCC certification?

I've built a small consumer device that contains an Arduino Nano. It's coupled to a custom daughter board that allows it to pulse a 12V electromagnet at about 1 hertz as well as inteface to some ...
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1answer
116 views

Measuring Peak Output Power for Frequency Hopping Transmitter (915MHz) for FCC Section 15.247

I've been looking at building a ~900MHz frequency hopping transmitter that conforms to FCC Section 15.247. See section 3.2.1 Frequency Hopping Spread Spectrum Requirements in the Semtech document ...
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0answers
87 views

USA FCC Permissive change with external power supply

What FCC rules apply to the substitution of a generic power supply module, supplied with a certified transmitter product? In this case it's a 5 Volt USB wall adapter, itself FCC tested, that's ...
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1answer
100 views

Sequencing modes for FCC “Intentional Radiator” test

I'm FCC certifying as an "intentional radiator" a product that uses a custom antenna and off the shelf Broadcom WiFi module. The module has an antenna port, so single-modular and limited single-...
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1answer
251 views

Why does four Apple Model Numbers (A1457, A1518, A1528 & A1530) have two FCC IDs (BCG‑E2643A & BCG‑E2643B) [closed]

These are model Numbers of iPhone 5S. I want to know why two Model numbers of iPhones have the same FCC ID? I am assuming that as they are two models, they are NOT the same for Apple yet they have the ...
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3answers
614 views

Is FCC certification needed for receiver device?

Is FCC certification needed for product acting as receiver but having transceiver chip inside? or there should specifically be a receiver only chip inside in order to bypass complicated certification ...
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2answers
635 views

What unlicensed frequencies can (or should) be used for proprietary wireless communication? [closed]

I can see that most of the gadgets that use proprietary protocols use 433MHz, 915MHz, or 2.45GHz, but I don't understand why. 433MHz is highly regulated in the US and 915MHz can not be used in Europe. ...
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1answer
95 views

ETSI EN 300 220-1 868MHz frequency precision

I'm trying to read the ETSI standard regarding my 868MHz transmitter design. I would like to transmit in one of the channelized bands ex. (868.600 to 868.700), which has a demand on 25KHz channel ...
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1answer
68 views

Intentional RF emitter failing unintentional emission test?

Suppose a commercial product uses a FCC pre-certified WiFi module. If the quality is not consistent throughout the batch, I'd guess some pre-certified modules may produce unacceptable emissions. In ...
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1answer
440 views

Is it fine to use 2.4 GHz nRF24l01 modules in commercial products under FCC rules? [closed]

I want to use nRF24l01 modules commercially. But, at the same time, I am aware of some of the FCC rules. I am just curious if someone knows about the regulation and could help me in this. I found this ...
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0answers
67 views

Is a board with on-board radio disabled an unintentional/intentional radiator?

If a board with the onboard radio (e.g., Bluetooth) chip disabled by software using a jumper, would it be considered to be an intentional or unintentional radiator? That is, the onboard radio can be ...
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1answer
139 views

Radiation susceptibility test circuit

I am looking to set up a test jig to test radiation susceptibility. This is to do a small in house test to check if my board is susceptible to radiation. The tests frequencies are the standard test ...
6
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2answers
378 views

Can I run custom firmware on a pre-certified RF module without needing to redo full FCC certification?

I need BLE connectivity in a product, so to save costs on FCC certification, Bluetooth SIG membership, etc. it will use a pre-certified module for this purpose. Usually such modules work in one or ...
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2answers
334 views

Do electronic devices like a servo motor need a certification to be sold in the US market?

We want to start a crowd funding project for our IoT servomotor. It comes with an integrated controller and an ethernet connection (no wireless) and now we are not sure about certifications (FCC, RoHS,...
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2answers
390 views

FCC Requirement for device to device output power variability?

I'm working on a BLE capable device using the Nordic Semiconductor nRF52 SoC, and we're going to have to go through FCC testing. But one thing that I am not clear on, at all, is the tolerance in ...
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1answer
115 views

FCC approval and quantity

I see that often commercial radio devices go through EMC tests and attain FCC approval. Do all commercial radio devices need to be approved by the FCC though? According to this: The radio frequency ...
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2answers
1k views

How do I cycle a WiFi transmitter through all modes, for FCC intentional radiator EMC testing?

I'm integrating a WiFi/Bluetooth module into a consumer product, however the module does not have a modular grant, will not have a modular grant, and is anyway getting paired with a unique internal ...
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2answers
547 views

Workaround for the obsolete ATTINY15 1.5Mhz clock for FCC exemption?

The ATTINY15's was ideal for designing FCC Part 15 exempt battery powered products since its 1.6Mhz internal RC clock ran just below the 1.705Mhz cut-off. The ATTINY2/4/85 replacement parts come with ...
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1answer
74 views

If I made a commercial product that utilized radio waves, which frequencies could I use?

Let's say, hypothetically, that I design some product that uses radio communication. Maybe something like a wireless lock. Or a scanner that tells you if a tag is near (in range of a few feet). Or a ...
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1answer
410 views

FCC certification for multiple transmitters

Need help in understanding FCC certification for a IoT device with a Bluetooth module and a WiFi module. The Bluetooth has its own FCC ID, so does WiFi. Both are certified to be modular FCC ...
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2answers
3k views

FCC, ROHS and CE certification and compliance [closed]

I have design a PCB which has Stepper driver, micro-controller, 204JHD display, MOSFETS for driving fans and TRIACS for driving heaters.There is not RF components on the PCB. What are the criterias ...
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2answers
650 views

Sim800 FCC Testing for GPRS

I have created a small product using Sim800 and the product uses only GPRS. I am told by the testing company, that I need to create a test firmware which will continuously transmit. The confusion is, ...
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1answer
72 views

Where can I find test labs for FCC and other unintended radio emissions testing? [closed]

Where can I find labs where I can pre-test or certify an electronic product intended for sale, according to FCC rules? I've searched the FCC website for a list of certified labs, without finding such ...
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2answers
143 views

How do I tell if my device qualifies for FCC exemption

According to the FCC: The following devices are subject only to the general conditions of operation in §§15.5 and 15.29 and are exempt from the specific technical standards and other requirements ...