Questions tagged [fcc]
FCC is the Federal Communications Commission, an independent agency of the United States federal government. It regulates the RF spectrum, broadband, and public safety.
22 questions with no upvoted or accepted answers
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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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FCC exemption for sub 1.705 MHz devices
The exemption section of the FCC rules on unintentional radiators (Title 47, chapter I, Subchapter A, Part 15, Subpart B, Section 15.103) has the following item :
(h) Digital devices in which both ...
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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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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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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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Authorization for non-commercial use of nRF24L01P in custom PCB (university project)
For a university project (non commercial) I am designing a PCB that uses a nRF24L01P.
I read a number of forum threads (such as FCC certification for nrf24l01+) where the need of an FCC approval is ...
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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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How to locate FCC ID of a bluetooth device
I'm trying to find the FCC ID for a super common bluetooth trigger, the one used on all the selfie sticks.
I went through each manufacturer name I saw on Alibaba and input their company names into ...
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Connect LED tapes using FFC or other flexible cable to go around obstacle
Two led tapes of width ~1cm sit 1cm apart. Between them in the middle, there's an obstacle around 3mm thick. I want to connect the LED tapes with a flexible cable that goes around the obstacle. FFCs ...
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Continuous, modulated wave for sx1276 for FCC testing for LORA
I am getting ready to bring an electronic device using SX1276 Lora radio to market. The FCC testing lab has requested that I be able to put the radio into the following configuration:
100% Duty Cycle ...
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Connecting MIPI DSI 39 pin to 40-pin LCD touch display
My board is radxa zero 2 pro. It has 4-lane MIPI DSI connector with 39-Pin and 0.3mm pitch. MIPI pin details of radxa zero 2 pro:
...
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Product certification for devices mounted on elevators
Do products that will be mounted on elevators needs extra certifications (apart from FCC or CE) to be sold in North America and Europe?
The product will be connected in the roof of the car, connected ...
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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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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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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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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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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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108
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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/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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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 ...
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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 ...
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