Contribute
Register

Solved > BCM94360CS2 antenna help

Joined
Aug 13, 2017
Messages
104
Motherboard
Dell Inspiron 7559
CPU
i7-6700HQ
Graphics
HD 530 (3840 x 2160)
Mobile Phone
iOS
I'm wanting to integrate a BCM94360CS2 (using an adapter in my m.2 WIFI card slot on the MB) and the desktop case has two antenna wires, and the BCM94360CS2 has two antenna jacks.

So I was wondering how the BT signal is transmitted? Does one of the antennas do BT and WIFI or is there no BT antenna at all? I have a BCM94360CD and it has a separate BT antenna jack plus WIFI antenna jacks, but this one I am not sure how BT gets out.

Thanks.
 

toleda

Moderator
Joined
May 20, 2010
Messages
24,463
Motherboard
Asus Maximus VII Impact
CPU
Core i7-4770K
Graphics
RX 560 + HD4600
Mac
iMac, MacBook Pro, Mac mini
Classic Mac
512K, LC, Power Mac
Mobile Phone
iOS
I have a BCM94360CD and it has a separate BT antenna jack plus WIFI antenna jack
Not correct, 3 antenna jacks, BT uses one of the antenna jacks. Same as BCM94360CS2 with 2 antenna jacks.
 
Joined
Aug 13, 2017
Messages
104
Motherboard
Dell Inspiron 7559
CPU
i7-6700HQ
Graphics
HD 530 (3840 x 2160)
Mobile Phone
iOS
Not correct, 3 antenna jacks, BT uses one of the antenna jacks. Same as BCM94360CS2 with 2 antenna jacks.
What's not correct? My BCM94360CD has 4 antenna jacks on it.
 
Joined
Aug 13, 2017
Messages
104
Motherboard
Dell Inspiron 7559
CPU
i7-6700HQ
Graphics
HD 530 (3840 x 2160)
Mobile Phone
iOS
Not correct, 3 antenna jacks, BT uses one of the antenna jacks. Same as BCM94360CS2 with 2 antenna jacks.
My mistake.
BCM94360CS and BCM94360CS2 do not use a BT antenna as described in Post #2.
Post #2 in this thread? Post #2 made no sense whatsoever.

You're saying the CS2 variant does not use a BT antenna and although it's inside a metal case, it somehow gets the BT signal out?
 
Last edited:
Joined
Aug 13, 2017
Messages
104
Motherboard
Dell Inspiron 7559
CPU
i7-6700HQ
Graphics
HD 530 (3840 x 2160)
Mobile Phone
iOS
Try again.
This thread, Post #2:
I almost feel like we're doing a "Who's on 1st" skit...

Post #4 you say the CS and CS2 do NOT use an antenna:

My mistake.
BCM94360CS and BCM94360CS2 do not use a BT antenna as described in Post #2.
But then you say it uses one antenna. If you're trying to confuse me, it's working.
 

CaseySJ

Moderator
Joined
Nov 11, 2018
Messages
4,270
Motherboard
Gigabyte Designare Z390
CPU
i7-9700K
Graphics
RX 580
Mac
MacBook Air, Mac Pro
Classic Mac
Quadra
Mobile Phone
iOS
I have the same BCM94360CS2 with two Mhf4 antenna connectors. They are attached to two external antennas provided by a PCIe x1 adapter. I'm using a Phanteks Evolv X metal case (ATX size).

Both WiFi and Bluetooth reception is impeccable. No need to worry about signal loss or signal reach.
 
Joined
Aug 13, 2017
Messages
104
Motherboard
Dell Inspiron 7559
CPU
i7-6700HQ
Graphics
HD 530 (3840 x 2160)
Mobile Phone
iOS
I have the same BCM94360CS2 with two Mhf4 antenna connectors. They are attached to two external antennas provided by a PCIe x1 adapter. I'm using a Phanteks Evolv X metal case (ATX size).

Both WiFi and Bluetooth reception is impeccable. No need to worry about signal loss or signal reach.
Perfect. I assume, then, that BT and WIFI are both using the antennas. Thanks for the info. Can't wait to try this out in the WIFI card slot on the MB and hopefully get rid of the (wonderful) Fenvi FV-T919 card and free up a slot!
 

CaseySJ

Moderator
Joined
Nov 11, 2018
Messages
4,270
Motherboard
Gigabyte Designare Z390
CPU
i7-9700K
Graphics
RX 580
Mac
MacBook Air, Mac Pro
Classic Mac
Quadra
Mobile Phone
iOS
Perfect. I assume, then, that BT and WIFI are both using the antennas. Thanks for the info. Can't wait to try this out in the WIFI card slot on the MB and hopefully get rid of the (wonderful) Fenvi FV-T919 card and free up a slot!
Yes, I believe both protocols are using the antennas. BT operates at 2.4 GHz while WiFi operates at both 2.4 GHz and 5 GHz. But in actuality, both BT and WiFi use a narrow range of frequencies.
  • BT ranges between 2.402 and 2.480 GHz and uses channels spaced either 1 MHz or 2 MHz apart
  • WiFi 2.4 ranges between 2.412 and 2.484 GHz with 14 channels spaced 5 MHz apart
Because the Broadcom chip controls both BT and WiFi, it can regulate channels dynamically to eliminate interference.

I don't know whether one antenna is dedicated to 2.4 GHz and the other to 5.0 GHz, or whether both antennas are used for both frequencies in a MIMO configuration. Regardless, the actual real-world performance of both BT and WiFi is really good.
 
Last edited:
Top