All Questions
10 questions
0
votes
1
answer
288
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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 ...
- 21
0
votes
1
answer
157
views
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 ...
- 25
0
votes
1
answer
150
views
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 ...
- 27
2
votes
1
answer
239
views
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 ...
- 61
1
vote
1
answer
316
views
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 ...
- 734
1
vote
2
answers
282
views
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.
...
- 63
1
vote
1
answer
2k
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 ...
- 23
2
votes
2
answers
2k
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 ...
- 423
5
votes
2
answers
9k
views
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 ...
- 22.9k
2
votes
1
answer
3k
views
Does a RFID antenna need to be FCC certified?
Being a RFID UHF antenna a "passive" element does it need to be FCC certified? Or, we just need to have the RFID UHF reader certified?
- 21