Questions tagged [fcc]
is the Federal Communications Commission and regulates the RF spectrum, broadband and public safety.
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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, and IC certified before we sell it in North America/EU.
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Is FCC/CE recertification needed if only the product name is changing?
I got FCC/CE certification for my product (a music player, unintentional radiator), but would now like to put out the same product under a new name. Nothing else is changing (PCB design, casing, etc. ...
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FCC certification for different products with the same antenna design
I was reading about FCC intentional radiation certification and am confused about a scenario. Let's say I have two products - Product A and product B.
Say I get FCC certification (for the wireless ...
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Taking a BLE product to market utilizing a pre-certified Bluetooth module
I've designed a product that utilizes a Raytac MDBT50Q-P1MV2 'pre-certified' MCU+Bluetooth module (based on Nordic nRF52840) and am now considering what it would take for me to legally sell such a ...
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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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EMI standards just for power on/off
I know the FCC has EMI/EMC maximums for connected emissions into the AC power cable while electronics are on.
But, are there FCC requirements on the brief connected emissions/bursts when the ...
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How to prove ROHS compliance of a component
I emailed the supplier of an OLED panel that comes mounted on a PCB that contains the driver circuitry, and they claim the part is ROHS compliant. I will be using this component in a system that I ...
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Is a system powered by an FCC-compliant power supply FCC-compliant if the rest of the system doesn't require compliance?
As I understand it, AC/DC SMPS power supplies and unintentional radiators (anything with a chip clocked at a speed of more than 9 kHz) must be FCC compliant.
I am preparing a device which uses an FCC-...
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Things to watch out when applying FCC CE
I have a Bluetooth remote control device that uses 2 AA batteries. Due to positive feedback and responses, I'm thinking to sell it to the mass market. Thus I need FCC certification.
After reading many ...
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FCC reguation for PCB in case of daughter board is FCC compliant
I am working on a project that uses the ESP32 WROOM module which is FCC compliant. I wonder if the FCC compliance gets void if new components are added to the module via a PCB. From my understanding, ...
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CE and FCC for MCU boards/Raspberry Pi HATs/Arduino shields etc
There doesn't seem to be a great deal of information on the internet about this (and the information that there is is usually contradicted somewhere else), so I'm going to ask this here, in the hope ...
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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 ...
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434MHz PCB Trace Antenna Design
Can anyone provide a reference design for a 434 MHz PCB Trace Antenna? Is it just a matter of creating a snake trace pattern about 17cm long and slapping a ground plane under it (with a trace ...
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What are the FCC rules on taking a wifi-system out of its current packaging and putting it inside another unit?
I have a wifi module (Advantech WISE-4220) shown in this datasheet.
If I remove the outer plastic casing and put the chip/antenna, unmodified, into another plastic case, am I breaking any FCC ...
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How to prepare my firmware for FCC Part 15 testing
I have a device for which I want to do FCC Part 15 testing - unintentional radiation. (It includes an ESP WROOM Wifi/Bluetooth module with modular approval).
This device connects to wifi every 20 ...
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How do you build a spurious emissions test rig?
Naively, it seems like you could test for spurious emissions by:
Placing the device-under-test (DUT) in a grounded metal box with a broadband antenna inside.
Hook the antenna's coax cable to the S21 ...
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Is it POSSIBLE for a wireless device to use the cellular frequencies without approval from the FCC
My question is purely hypothetical and does NOT apply to any real life scenarios. Is it possible for a wireless device to use the cellular quad band successfully without FCC approval or knowledge.
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Why EIRP has denominator factor 30 in the formula?
I am calculating the EIRP using FCC guidelines. I came across the formula in the FCC guidelines that has a denominator value of 30. That is, EIRP = (E x d)^2/30. Can anyone explain what 30 is and ...
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Where is the third antenna on this avalanche beacon PCB?
I have been looking at the pictures of the internal circuitry of a Barryvox S avalanche beacon on the FCC ID website. I cannot open mine, since that would void the warranty.
This beacon, as all modern ...
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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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Spurious measurements FCC
I was wondering if someone can help me with a project at work. I am very very new into RF.
I work for an EMC/EMI lab and we want to do some spurious emissions testing and establish a test procedure ...
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FCC testing for boards with programmable firmware
I'm curious how FCC conformity testing is done on PCBs that contain devices with programmable firmware. Specifically, boards that are designed to allow the end-user to reprogram the firmware (such as ...
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Simulation tools for FCC SDoC testing
For as expensive as FCC-conformity lab testing costs, I am curious if there are any simulation tools that could help in producing an approximation of what a lab test would find, given a PCB design. ...
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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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How to connect a display with MIPI DSI connector X to a board with connector Y?
I want to connect a touchscren display to a development board via MIPI DSI interface, but their connectors do not match.
The display uses a 30-pin FCC, 1mm pitch, double-side contacts connector (link ...
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FCC Complaince & Removable Bluetooth Antennas
We are developing a product that will hopefully soon be sold internationally and will therefore be put through FCC & CE Certification testing. Part of that design is an audio mixer with an ...
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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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FCC certified module in europe
If I have an FCC certified BLE module, can I use it in a product destined for Europe and CE mark the product with no additional (intentional radiator) testing?
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FCC compliance nRF9160 external antenna
We are currently evaluating a nRF9160 for a consumer/industrial product. It does not have a built in antenna for GPS/LTE. There are detailed specs on designing for an external one from Nordic. Now ...
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Need help understanding RF radio parameters
I am experimenting with the SPSGRF-915 RF transceiver, particularly with the different center frequencies.
My question mainly revolves around the situation where multiple devices can transmit at the ...
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Which products require EMC certificate?
What are the guidlines (or where can I find them) for which products require EMC testing certificate? I know that this determined per country, so for starters let's go with the US.
My product contains ...
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Does my Wireless Charging PCB need to have FCC, UL, CSA, certified marks?
I have a simple 5W output wireless charging device that uses a tx coil to transfer power to a phone, this is powered from a 1800mAh battery. Do I need any certifications for this?
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Are IEC 60601-1-2 medical emc and FCC compatible?
I must comply with the medical EMC standard IEC 60601-1-2 but wireless modules do not come certified to this standard.
For example, telit fn980 is certified to FCC, RED, etc.
Are FCC certified devices ...
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If all parts in a product are FCC or CE certified then do i still need to apply for certification for the complete product?
I am building a CNC product and all the electronics parts we are using are either FCC or CE certified. Do I then have to obtain a separate certification for the product as a whole ?
Also any idea what ...
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Bluetooth and Wifi Maximum Power limt
I saw below Bluetooth chip comparison of many module , most of all are having 8dbm max power , what I know FCC has 30dbm and CE has 20dbm Max power limit so why Bluetooth module are limited to only ...
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FCC rules for wideband / spread spectrum devices
I'd like to clarify how the FCC measures power in a frequency band (both for intentional and unintentional radiators). There are devices which either frequency hop (output is a sine wave, but center ...
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FCC part 15 "must accept interference from other sources": what does this mean?
I've googled around a bit and here are the interpretations I've found in non-authoritative sources:
that the device is unable to filter out interference caused by
other certified equipment
that if ...
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Why are radiated emissions standards for consumer electronics different from industrial?
Why are radiated emissions standards for consumer electronics different from industrial?
Source:??
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Is EMI/EMC still a big concern for a PC case?
I've recently started looking into researching potential concerns when it comes to using a non-metal material for a custom PC case, specifically wood. I've seen people talk about heat, electrical ...
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802.11 Channel Use Regs
With a 5.8 Ghz WLAN device, operating in the upper UNIII band of 5745-5825 MHz...
Is it required that, if the device is using a standard 20 MHz-wide 802.11 channel, that you can only be centered on ...
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Are external data connections considered "unintentional radiation" by the FCC?
Does a device with an external communication port of some kind fall under "intentional radiation" or "unintentional radiation" according to the FCC for testing and certification ...
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Is EMC (FCC and EU) testing performed as sold or as used?
I have a prototype that inserts a fairly weak ISM band RF signal (HF/VHF) as a way of detecting a connection between two metal objects without there being a DC return path (Ideally I would use TDR but ...
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Does using an antenna extension cable violate FCC cert?
I have a question about FCC part 15 certs. Using the Particle Cellular B series SoM, they have a "Grant of equipment authorization" to use the module as an end device. Link to the module docs below.
...
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CE/FCC/RoHS/etc certification for Intel NUC and other barebone MiniPCs?
Intel sell the Intel NUC without a hard drive or ram. They provide a list of compatible rams and drives. By sliding in the ram stick and drive, am I not invalidating all of the certificates on the ...
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Building a UHF RFID Reader, FCC regulations?
I've been working on a project that involves tiny UHF transponders (ex. OMNI-ID Fit 220) that fit into a product with very limited space. We wanted to build our own reader (5 or 6 of them) because it'...
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Is there any country where the 868 MHz or 915 MHz ISM band cannot be used?
The product I am working on (Electronic Shelf Label) uses the 915 MHz radio frequency band and is currently being deployed in Asia. I am gathering the list of countries that the 915 MHz frequency is ...
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Maximum transmit power allowed for 802.11g
I'm learning about the 802.11 regs. In a book I'm using, "CCNA Wireless 200-355 Official Cert Guide (Certification Guide) 1st Edition
by, David Hucaby (Author). Page 53", it has the following clause ...
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FCC / CE requirements for adapter pcb?
A product consisting (electronically) just of a PCB with a male USB-C one one side, 5mm of traces and a female USB-C on the other end. No other components at all. To be used as consumer device.
How ...
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Can the Olimex ESP32-EVB be used in a commercial application?
My friend and I are very near a final product design, but we currently are using an Olimex ESP32-EVB relay module as part of the final system.
Recently we were told by a consultant that the FCC could ...
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FCC/ETSI conformance with backscatter
Do passive backscatter devices fall under regulations of FCC/ETSI?
Suppose a system emits a 4W EIRP tone in the ISM band (conforming to FCC/ETSI regulations). A fully passive device backscatters data ...
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