ESB Telec and FCC Certification

RE: ESB Telec and FCC Certification

Elfving — Thu, 03 Apr 2025 13:10:30 GMT

[quote user="DX_HK"]Therefore, not only BLE but also ESB is permitted.[/quote]

That is my understanding.

[quote user="DX_HK"]It can be increased from the default 0dbm in ESB_DEFAULT_CONFIG.[/quote]

[quote user="DX_HK"]Maximizing the transmit power will increase power consumption slightly.
On the VDDH line, increasing it from 0dbm to 8dbm showed an increase of 0.5mA, 2mW.
[/quote]

That makes sense. I believe how much it would increase would depend on the nRF though, I am not sure which one you are using.

[quote user="Elfving"]

Are these certification valid for ESB (2Mbps)?

Could you expand a bit on this part? Where are you getting these?

[/quote]

Any update on this?

Regards,

Elfving

RE: ESB Telec and FCC Certification

DX_HK — Thu, 03 Apr 2025 05:18:28 GMT

Sorry, I'm not an expert on wireless, so let me confirm a few things just to be sure.

The maximum output of the module is 8dbm.
It can be increased from the default 0dbm in ESB_DEFAULT_CONFIG.

Maximizing the transmit power will increase power consumption slightly.
On the VDDH line, increasing it from 0dbm to 8dbm showed an increase of 0.5mA, 2mW.
This appears to be due to radio power...right?

RE: ESB Telec and FCC Certification

DX_HK — Thu, 03 Apr 2025 04:18:23 GMT

Is there any problem with my understanding?

> The requirements should be the same as for BLE:
... So I don't think there's a problem, but I'd like to confirm just to be sure.

RE: ESB Telec and FCC Certification

DX_HK — Thu, 03 Apr 2025 04:16:04 GMT

Thank you for your reply.

In the module datasheet, the FCC and Telec certifications are listed as BLE and IEEE 802.15.4 certifications.

As I understand it, FCC and Telec are not protocol-level certifications,and the RF requirements for BLE and ESB are the same.
Therefore, not only BLE but also ESB is permitted.

RE: ESB Telec and FCC Certification

Elfving — Wed, 02 Apr 2025 12:46:38 GMT

Hi again, and thank you for your patience on this,

[quote user=""]

Q1.
The TX power is configurable on the ESB, I don't know how that corresponds to the signal strength for certification.

How can I check the allowed TX power?

[/quote]

The requirements should be the same as for BLE:

FCC&US has a max of 20 dBm, Telec&Japan (along with the rest of the world) has 10dBm = 10 mW.

[quote user=""]Are these certification valid for ESB (2Mbps)?[/quote]

Could you expand a bit on this part? Where are you getting these?

Regards,

Elfving

RE: ESB Telec and FCC Certification

DX_HK — Mon, 31 Mar 2025 11:24:42 GMT

This question came up while I was preparing the FW for testing.
I hope to reach a conclusion by the end of this week.

So I'd like to check it as soon as possible.

RE: ESB Telec and FCC Certification

Elfving — Mon, 31 Mar 2025 11:17:20 GMT

Understood. My go-to ESB resource is unfortunately corrently sick. If it is okay with you, I'll get back to you on this once I can hear with him on this. If this case is more urgent however, let me know and I'll find this out some other way for you.

Regards,

Elfving

RE: ESB Telec and FCC Certification

DX_HK — Fri, 28 Mar 2025 07:01:04 GMT

Yes, that's right.

I want to use the maximum TX power possible while still maintaining certification.

RE: ESB Telec and FCC Certification

Elfving — Thu, 27 Mar 2025 16:36:30 GMT

Hi,

Just to clarify:

[quote user=""]

How can I check the allowed TX power?

[/quote]

So you do know how to set it, but you wonder where you can check how high you can set it, for it to still follow the certification?

Regards,

Elfving