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#227908 - 20/07/2004 10:32 DAB radio on empeg a reality?
andym
carpal tunnel

Registered: 17/01/2002
Posts: 3996
Loc: Manchester UK
I was leafing through the mountain of junk mail I get at work then I noticed a press-release heralding the arrival of a miniature dab module costing less than $40 (assuming it's ordered in bulk) needing 5v, I2C interface and an audio output stage. I've emailed the contact asking for more information. The interesting thing is that it does FM as well.

More info when I get it.
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Andy M

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#227909 - 20/07/2004 11:15 Re: DAB radio on empeg a reality? [Re: andym]
boxer
pooh-bah

Registered: 16/04/2002
Posts: 2011
Loc: Yorkshire UK
Put me down for No.2 in the bulk buy.
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#227910 - 20/07/2004 11:41 Re: DAB radio on empeg a reality? [Re: andym]
frog51
pooh-bah

Registered: 09/08/2000
Posts: 2091
Loc: Edinburgh, Scotland
I have heard very little about DAB radio - I guess I would need to ask the following questions:

Are DAB broadcasts generally available now
What sort of stations use it
What is the audio quality

I'm sure these things have all been well publicised, but I have missed them
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#227911 - 20/07/2004 13:20 Re: DAB radio on empeg a reality? [Re: frog51]
CrackersMcCheese
pooh-bah

Registered: 14/01/2002
Posts: 2489
Depends on the area you live in. If you go here you can enter your postcode and see whats available.

In the Glasgow area there is a huge range - all the BBC stations and local stations are on DAB as well many national stations usually found an MW. Many stations are unique to DAB.

The quality is good enough I suppose, but I've yet to find one above 128kbps. Stations usually on MW sound a LOT better, but sometimes I find that FM is clearer. Thats another thing - DAB is only good if you get a clear signal. If you get a weak signal you totally lose the station - this doesn't happen with FM so its good that many radios have the FM tuner as well.

Some cool things are scrolling text for station info and lyrics etc. Well woth the £99 I paid 2 years back.

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#227912 - 20/07/2004 14:00 Re: DAB radio on empeg a reality? [Re: andym]
tman
carpal tunnel

Registered: 24/12/2001
Posts: 5528
Yeah. Could be interesting. I'd want to get one to play about with even if I don't ever connect it to the empeg.

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#227913 - 21/07/2004 06:57 Re: DAB radio on empeg a reality? [Re: CrackersMcCheese]
boxer
pooh-bah

Registered: 16/04/2002
Posts: 2011
Loc: Yorkshire UK
this might also help.
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#227914 - 21/07/2004 09:03 Re: DAB radio on empeg a reality? [Re: andym]
auser
Quiet One

Registered: 20/04/2004
Posts: 0
Loc: CH
sadly I'm not (yet) an empeg owner, but I'd be interested in such a rather cheap DAB solution. Can you share any Details such as Manufacturer, part no., bands (L, K)?
many thanks

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#227915 - 21/07/2004 09:08 Re: DAB radio on empeg a reality? [Re: auser]
andym
carpal tunnel

Registered: 17/01/2002
Posts: 3996
Loc: Manchester UK
Quote:
Manufacturer

Several, it's licenced technology, none of them speak English it seems...

Quote:

part no.



Haven't a clue yet

Quote:

bands (L, K)



One module will do L-Band in addition to others.

Still waiting on a reply from the company....
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Andy M

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#227916 - 21/07/2004 12:32 Re: DAB radio on empeg a reality? [Re: andym]
auser
Quiet One

Registered: 20/04/2004
Posts: 0
Loc: CH
Quote:
Quote:
Manufacturer

Several, it's licenced technology, none of them speak English it seems...


niether do I. It's only reading and writing that I can (partially) cope with.

Is it possilbe, that Radioscape was the companie that sent you the
press release?

(edited to fix a dangling [quote] that was affecting HTML outside the post)


Edited by wfaulk (21/07/2004 12:42)

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#227917 - 21/07/2004 12:58 Re: DAB radio on empeg a reality? [Re: auser]
andym
carpal tunnel

Registered: 17/01/2002
Posts: 3996
Loc: Manchester UK
Yeah it's Radioscape. They really are taking the piss though, I've left two messages now and they've still not got back to me.
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Andy M

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#227918 - 21/07/2004 13:40 Re: DAB radio on empeg a reality? [Re: andym]
tman
carpal tunnel

Registered: 24/12/2001
Posts: 5528
Ahh... Radioscape. They did some of the first DAB modules. The Psion Wavefinder has one of their modules inside except all the brains were in the PC software.

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#227919 - 21/07/2004 16:17 Re: DAB radio on empeg a reality? [Re: tman]
andym
carpal tunnel

Registered: 17/01/2002
Posts: 3996
Loc: Manchester UK
Quote:
Ahh... Radioscape. They did some of the first DAB modules. The Psion Wavefinder has one of their modules inside except all the brains were in the PC software.


Yeah I know, evil COM object. Easy to implement in VB a nightmare in anything else.

Heard back from the man, it turns out the minimum order is 100 which works out at approx $55 a module. Now I don't have $5500 laying around. I have ordered a sample module for £60, so we'll see what happens. We'd need a 100 confirmed orders before we could get the modules, so that probably scuppers it.
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Andy M

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#227920 - 21/07/2004 16:43 Re: DAB radio on empeg a reality? [Re: andym]
Cris
pooh-bah

Registered: 06/02/2002
Posts: 1904
Loc: Leeds, UK
I would have thought 100 orders would be made pretty quickly, if they do FM as well even people with no DAB coverage may be interested.

I don't really need a tuner module, but I'd get one just for the cool factor

Cheers

Cris.

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#227921 - 21/07/2004 17:14 Re: DAB radio on empeg a reality? [Re: Cris]
andym
carpal tunnel

Registered: 17/01/2002
Posts: 3996
Loc: Manchester UK
I'll see what I can do with the sample. Of course whatever I do software-wise would be external to the player software (ie a hijack userland program). We could utilise the serial port used on tuner connection but the audio is baseband so I'd unable to utilise the MPX input easily. You'd therefore need to use the aux in, although I thought I read somewhere that there is an I2S input available and there's an SP/DIF output on the module.

EDIT: Forgot to say the module they're supplying is L-Band capable.


Edited by andym (21/07/2004 17:17)
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Andy M

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#227922 - 21/07/2004 17:21 Re: DAB radio on empeg a reality? [Re: andym]
tman
carpal tunnel

Registered: 24/12/2001
Posts: 5528
Doh about the minimum order quantity. I'd only want one or two and judging by the number of people wanting them in this list, it's not enough at the moment. Not without a complete product for the empeg anyway.

Yeah. There is a totally untested I2S input on the tuner connector but we've hardly any documentation on the pinout much less how to enable it. Hugo did hint at some of the pins and what they do but he couldn't remember. It may turn out to be totally unusable without motherboard modifications as well.

From what I remember there were a couple extra inputs on the DSP which aren't used but wiring into those might be a lot of hassle.

Hook it into the mic input and sled serial?

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#227923 - 21/07/2004 17:28 Re: DAB radio on empeg a reality? [Re: tman]
andym
carpal tunnel

Registered: 17/01/2002
Posts: 3996
Loc: Manchester UK
Quote:
Hook it into the mic input and sled serial?


Yeah I suppose, given the fact I already have a tuner I think I'd use the sled serial and the aux in.
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Cheers,

Andy M

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#227924 - 21/07/2004 19:19 Re: DAB radio on empeg a reality? [Re: andym]
Cris
pooh-bah

Registered: 06/02/2002
Posts: 1904
Loc: Leeds, UK
Can't it just be hacked into a pca tuner kit??? Or am really asking a stupid question here???

(He runs away with A Level in Electronics between his legs )

Cheers

Cris.

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#227925 - 21/07/2004 19:28 Re: DAB radio on empeg a reality? [Re: Cris]
tman
carpal tunnel

Registered: 24/12/2001
Posts: 5528
Nope. Different interface.

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#227926 - 21/07/2004 19:43 Re: DAB radio on empeg a reality? [Re: tman]
Cris
pooh-bah

Registered: 06/02/2002
Posts: 1904
Loc: Leeds, UK
DOH!!!

Well I did only get a C, what did you expect!

Cris.

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#227927 - 21/07/2004 23:57 Re: DAB radio on empeg a reality? [Re: andym]
tman
carpal tunnel

Registered: 24/12/2001
Posts: 5528
Which particular module is it? The RS200L?

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#227928 - 22/07/2004 04:53 Re: DAB radio on empeg a reality? [Re: tman]
andym
carpal tunnel

Registered: 17/01/2002
Posts: 3996
Loc: Manchester UK
Yeah its the 200L, there is a 350L which is suitable for automotive applications but he couldn't quote on that.
_________________________
Cheers,

Andy M

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#227929 - 11/08/2004 19:16 Re: DAB radio on empeg a reality? [Re: andym]
tman
carpal tunnel

Registered: 24/12/2001
Posts: 5528
Any attempts at interfacing the DAB module yet?

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#227930 - 12/08/2004 18:53 Re: DAB radio on empeg a reality? [Re: tman]
andym
carpal tunnel

Registered: 17/01/2002
Posts: 3996
Loc: Manchester UK
I've not ordered it yet, it's been an expensive month. Besides, I'd be really surprised if I couldn't make it work....
_________________________
Cheers,

Andy M

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#227931 - 25/08/2004 08:46 Re: DAB radio on empeg a reality? [Re: andym]
auser
Quiet One

Registered: 20/04/2004
Posts: 0
Loc: CH
Hi Andym
regarding "expensive"
could you please let me know the approximate "prototype quantity price" ?
many thanks

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#227932 - 25/08/2004 09:46 Re: DAB radio on empeg a reality? [Re: auser]
andym
carpal tunnel

Registered: 17/01/2002
Posts: 3996
Loc: Manchester UK
Quote:
Hi Andym
regarding "expensive"
could you please let me know the approximate "prototype quantity price" ?
many thanks


Well, radioscape were only interested in selling me an evaluation model because of who my employer was. The salesman also asked that I didn't give his details to anyone else, I can only assume he doesn't want to be bombarded by dozens of people all trying to buy one unit.

On the subject of the unit, I'm currently awaiting delivery. It should be here some time this week or early next week. If there was sufficient interest I can organise a bulk purchase of 100 units which would work out at about the same price as the original tuner. Bear in mind this thing will do FM as well. It's also far more integrated than patricks tuner so there aren't as many discreet components required. On the downside, it's bigger and currently incompatable with the existing tuner functionality in the player.
_________________________
Cheers,

Andy M

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#227933 - 25/08/2004 15:55 Re: DAB radio on empeg a reality? [Re: andym]
ngchol
stranger

Registered: 04/09/2001
Posts: 78
Please add me to the list! A DAB/FM module is just what I've been waiting for...

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#227934 - 27/08/2004 11:49 Re: DAB radio on empeg a reality? [Re: andym]
auser
Quiet One

Registered: 20/04/2004
Posts: 0
Loc: CH
Quote:

... were only interested in selling me an evaluation model because of who my employer was.


ok. before i go and try if they are intrested to sell eval-boards
to small european companies, I'd take one off those 100's below.
Quote:

... can organise a bulk purchase of 100 units..

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#227935 - 03/09/2004 09:40 Re: DAB radio on empeg a reality? [Re: auser]
andym
carpal tunnel

Registered: 17/01/2002
Posts: 3996
Loc: Manchester UK
Look what arrived in the post this morning...



Attachments
231507-dabmodule.jpg (264 downloads)

_________________________
Cheers,

Andy M

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#227936 - 20/09/2004 09:20 Re: DAB radio on empeg a reality? [Re: andym]
Nobbie
journeyman

Registered: 12/02/2002
Posts: 59
Loc: Herts, UK
I'd be intersted in tohis too, but i fear it'd not get ported into the empeg software as development is finished to my knowledge. Maybe it could be incorporated into hi-jack?
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#227937 - 20/09/2004 10:18 Re: DAB radio on empeg a reality? [Re: Nobbie]
andym
carpal tunnel

Registered: 17/01/2002
Posts: 3996
Loc: Manchester UK
Without help from the empeg guy this project would be completely separate to the player software and would require hijack to function.

I'm currently too busy to really get started on the this right away. Things should quieten down in December.
_________________________
Cheers,

Andy M

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