Bluetooth radio interface

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Bluetooth radio interface

Postby Eamon » Fri Jul 08, 2011 8:09 am

I have just looked into this after hearing someone talk about it at a MARC meeting within the last year.

The idea is to be able to add a hands-free audio interface to a radio.

Even better if you can remote the PTT (and not rely on VOX).

The Jabra A210 is an analog Bluetooth cellphone interface (letting you use Bluetooth with non-Bluetooth phones). By now it is discontinued due to the ubiquity of Bluetooth cellphones, but apparently it can be bought easily. Though what I saw it selling for was in the $50 range. I'd like something cheaper.

I am going to look around. Especially for module level solutions that are not specific to ham radio.

I will start with http://www.bluegiga.com/WT32_Bluetooth_Audio_Module or with other BlueGiga modules (since we have a bunch of them at work, although WT12 used for RFCOMM i.e. serial port data)

Hmm... they are not cheap either, even at 100PCs from Mouser they are > $30. http://ca.mouser.com/Search/Refine.aspx?Keyword=wt32

Anyone else like this idea?

Eamon
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Re: Bluetooth radio interface

Postby VE2XCS » Sat Jul 09, 2011 9:16 pm

Hi Eamon,

I've already tried to connect a bluetooth transmiter to a radio and use a bluetooth headset to listen to my radio wirelessly. I haven't tried transmitting on my radio (my rig doesn't have VOX), but I was able to receive audio from the radio with limited success.

Unfortunately,these Bluetooth headset are prone to interference from other devices in the 2.4 GHz band (especially wifi router). I always had an intermittent clicking noise when I was using my headset near a router and the noise would disappear once I got far enough from the router.

Since the signal of headset doesn't go very far (30 feet, if lucky), I guess it all depends on how far your Bluetooth connected rig and your router are space apart, in order to use your headset without being affected by interference.

That my 2 cents when it comes to bluetooth use with ham radio. I hope you have more success than I did. ;)

73 de Bram
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Re: Bluetooth radio interface

Postby extadiotech » Sat Jul 16, 2011 8:03 am

You might want to take a look at this Youtube video

http://www.youtube.com/watch?v=6ypVUoRVv3U

Also, I believe there are commercial interfaces available.
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