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Thread: FM/DAB digital radio - THAT WORKS!!

  1. #611
    Variable Bitrate
    Join Date
    Apr 2010
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    The latter you linked to is only for the Pure Highway...

  2. #612
    Constant Bitrate
    Join Date
    Aug 2009
    Location
    UK
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    I figured that it's still a DAB radio. What's specific about it, just the connector?

  3. #613
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    Apr 2010
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    Not sure but it just says only for Digital Highway on that page. There is another one for general DAB units.

  4. #614
    Newbie
    Join Date
    Jul 2009
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    6
    Quote Originally Posted by jdmagoo1 View Post
    Nah in ausrtralia currently have it connected to the factory window based antenna which doesn't provide the best reception, trying to find an alternative antenna which is proving difficult without having to import
    Out of interest could you post a bit of detail on how you connected up to the windows antennae

    Cheers

    Joel

  5. #615
    Newbie
    Join Date
    May 2009
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    53

    DIY DAB Aerial

    Hi

    For those located where its hard to find suitable aerials locally, try the DIY approach...

    http://groups.google.co.uk/group/alt...78779f81c18d9e

    I'm using a magimount taxi aerial as per the above post. Works pretty well - better than my windscreen mount job. You should be able to get a taxi aerial with a whip that can be cut down in most parts of the planet.

    The main issue will be fitting an SMB connector to the end of the cable...

    Nigel

  6. #616
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    Oct 2004
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    guys, search FM + DAB Diplexer
    if you can find one, even if it has F connectors... i might
    be able to reverse engineer it

    actually a Triplexer should be easier

    like...
    http://www.aerialsandtv.com/onlinesp...sFMDABdiplexer
    External (M/H) TV + FM + DAB Triplexer (cw 4 quality F conns)

    http://www.tvaerials.com/product.aspx?productid=2173
    just terminate the UHF in... with 75ohm terminator


    or

    http://www.tvaerials.com/product.aspx?productid=2225

    someone needs to try this...
    -Thanks
    Mitch
    www.rush2112.net

    "Did you test it in carwings??"

    Sun, Come shine my way
    May healing waters bury all my pain
    Wind, Carry me home
    The fabric of reality is tearing apart
    The piece of me that died
    Will return To live again

  7. #617
    Variable Bitrate
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    Jun 2008
    Location
    Perth, Western Australia
    Posts
    337
    If you need some $$ to go towards picking one up to rip apart Mitch, fire me off a PM, I'm happy to throw some your way for one or two to pull to pieces.

    I haven't got one of the DAB+ radio's yet, but I'm looking at grabbing one before too long, they are finally starting up more DAB+ channels in Perth, so there is actually some choice, and having it fall back to FM and AM is exactly what I'm looking for. Although, I do have a standard single aerial, which I was hoping to use for DAB+ reception anyway, so I don't think I need the duplexer / triplexer, however I'm happy to throw some money at a worthy hacking cause!!

    One question, are the operating frequencies for DAB and DAB+ the same?

  8. #618
    Variable Bitrate
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    Jul 2010
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    226
    Quote Originally Posted by Sledge1 View Post
    I had Craig send it to a PO Box so that it didn't get stolen etc !!
    Hey, you never know it might still show up tomorrow lol...
    IT BETTER !!
    .. But as usual Aussie Post fails..
    Stop the presses !!
    I think it's rocked up finally lol..

  9. #619
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    Apr 2010
    Posts
    268
    Great stuff. About time!

  10. #620
    Newbie
    Join Date
    May 2009
    Posts
    53

    Tripplexer

    Hi Mitch

    I've been using the vision tripplexer since May with good results. No noticable attenuation of either FM or DAB. DAB Aerial is now a taxi magi-mount cut for 1/4wave on DAB. FM aerial is what came on the van (poor!)

    See my posts on this page: http://www.mp3car.com/vbulletin/hard...-works-12.html

    Some pics here: http://www.veletron.com/php/gallery2...2_itemId=16827

    Some info also on digitalcar here: http://www.digital-car.co.uk/forum/s...=8609&page=117

    Its rather crude, but it works. Unfortunately, its a part of my carpc so I cant donate it for reverse engineering! A 'DC Injector' is required to replace the more usual mains powered masthead PSU. I just feed 5V from the USB to the tripplexer, via the inline DC injector.

    I had wanted to hide it all internally in the case, but this would mean connecting the tripplexer to sockets mounted on the case, and thus more interconnections/losses. It would also make for a huge box! I have made no attempts at impedance matching, nor have I terminated the UHF input.

    Nigel

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