Page 2 of 33 FirstFirst 123456789101112 ... LastLast
Results 11 to 20 of 327
Like Tree1Likes

Thread: DAB DAB+ FM Digital Radio Development Board

  1. #11
    Maximum Bitrate Mickz's Avatar
    Join Date
    Sep 2009
    Location
    Australia
    Posts
    832
    Quick update when compared to the old DAB-FM unit in the vehicle.

    The new unit appears to have better sensitivity on FM. DAB is about the same which was good anyway.

    This unit had no injected system noise back into the audio line (I had to strap the old unit shield to the Audio earth point in the PC). I tested it with no case and the PCB just sitting amongst the USB leads inside the CAR PC case. Only ground was via a 4 aerial patch lead to a chassis mounted aerial changeover relay. This is mounted on the aluminium Car PC case and is auto selected from within the modified Demo software when changing FM-DAB modes.

    It sounded great and ran beautifully. I could have been using an expensive standalone car DAB-FM Head unit really impressed.
    GA-Z77N-WIFI, i5-2400S, 8GB, Intel 520 128GB SSD, M4-ATX Modified, 2 Rev Cams, 2 Web Cams
    8" 16:9 TRANSFLECTIVE, Win8-64, Dual GPS RX and Garmin PC + Odyssey Nav, FM-DAB+, BB-Rec
    T-Screen HVAC control, custom microcontrollers, code and FE. CarPC Project

  2. #12
    Maximum Bitrate Mickz's Avatar
    Join Date
    Sep 2009
    Location
    Australia
    Posts
    832
    So for any one interested, this is a video is a complete rewrite of my application

    NOTE: This video has been changed is now the same as Post 2.



    EDIT: For NEW Video.
    Last edited by Mickz; 09-11-2012 at 08:33 PM. Reason: update
    GA-Z77N-WIFI, i5-2400S, 8GB, Intel 520 128GB SSD, M4-ATX Modified, 2 Rev Cams, 2 Web Cams
    8" 16:9 TRANSFLECTIVE, Win8-64, Dual GPS RX and Garmin PC + Odyssey Nav, FM-DAB+, BB-Rec
    T-Screen HVAC control, custom microcontrollers, code and FE. CarPC Project

  3. #13
    Newbie
    Join Date
    Feb 2012
    Location
    UK
    Posts
    49
    Some excellent work there Mickz, thanks for posting in such detail. Looks like this board is the best option in a while. Can't wait to have a play myself.

    Just been reading through your 'project' thread. Very impressive stuff!!

  4. #14
    Maximum Bitrate Mickz's Avatar
    Join Date
    Sep 2009
    Location
    Australia
    Posts
    832
    Quote Originally Posted by Dabbler View Post
    Some excellent work there Mickz, thanks for posting in such detail. Looks like this board is the best option in a while. Can't wait to have a play myself.

    Just been reading through your 'project' thread. Very impressive stuff!!
    Thanks Dabbler and I can only say again the board is just Great, I was thinking I would need direct access to the hardware and not use the DLL, but the DLL allows me to do anything. The DAB station play list is returned as a list numbering from 0 to the number of found DAB stations. So basically if you have 120 stations then you have 120 presets to select from, send 43 and you get station 43 on the list. The FM station is returned as a frequency, so any FM frequency could be manually entered. This may also be available in DAB but it does not appear in the DLL interface from what I can see.

    The DLL or the Hardware puts a limit on the length of the inbuilt Preset name and also hashes the name. That initially stopped me from having the preset button auto light and the station list from auto scrolling and highlighting. It was easy to overcome in the main code, so finally I have a real DAB-FM Radio in the car. Can you tell I'm over the moon with the outcome of this device and the supplied DLL.

    EDIT UPDATE:The problem with short Preset names is overcome by changing an option in a call to the DLL function, so full names are supported in the DLL and radio.

    Wonder if they could be talked into doing a Unix interface to cover the guys who use it? Well at least the data is available to roll your own.
    Last edited by Mickz; 08-31-2012 at 11:19 PM.
    GA-Z77N-WIFI, i5-2400S, 8GB, Intel 520 128GB SSD, M4-ATX Modified, 2 Rev Cams, 2 Web Cams
    8" 16:9 TRANSFLECTIVE, Win8-64, Dual GPS RX and Garmin PC + Odyssey Nav, FM-DAB+, BB-Rec
    T-Screen HVAC control, custom microcontrollers, code and FE. CarPC Project

  5. #15
    Newbie
    Join Date
    Apr 2007
    Location
    Edinburgh, UK
    Posts
    2
    As Dabbler said - Excellent write-up Mickz.

    Just received a mail from MonkeyBoard - they now have boards back in stock

    Cheers

    Scott

  6. #16
    Low Bitrate Dexamenus's Avatar
    Join Date
    Nov 2008
    Posts
    73
    Stock is in! Just bought one!

  7. #17
    Variable Bitrate
    Join Date
    May 2010
    Location
    Australia
    Posts
    378
    mmm might have to start thinking about a board for one of these..

  8. #18
    Maximum Bitrate Mickz's Avatar
    Join Date
    Sep 2009
    Location
    Australia
    Posts
    832
    Quote Originally Posted by scottydj2 View Post
    As Dabbler said - Excellent write-up Mickz.

    Just received a mail from MonkeyBoard - they now have boards back in stock

    Cheers

    Scott
    Hi Scott – I didn’t see your post until today (1st postings are usually delayed so it’s either that or I’m going blind). Anyway welcome and thanks for the words.

    Stretch4x4 It’s a really nice module.
    Last edited by Mickz; 08-21-2012 at 12:07 AM.
    GA-Z77N-WIFI, i5-2400S, 8GB, Intel 520 128GB SSD, M4-ATX Modified, 2 Rev Cams, 2 Web Cams
    8" 16:9 TRANSFLECTIVE, Win8-64, Dual GPS RX and Garmin PC + Odyssey Nav, FM-DAB+, BB-Rec
    T-Screen HVAC control, custom microcontrollers, code and FE. CarPC Project

  9. #19
    Low Bitrate Dexamenus's Avatar
    Join Date
    Nov 2008
    Posts
    73
    Been thinking about this, what are peoples plans for an antenna in car.
    Just use the one provided and hide it somewhere? Or get an adapter to go from the SMA to motorola connector on the car's radio?

    I suppose you could easily crimp an SMA connector onto the existing car antenna feed.

  10. #20
    Maximum Bitrate Mickz's Avatar
    Join Date
    Sep 2009
    Location
    Australia
    Posts
    832
    The car aerial will be useless for DAB if it’s not designed for it. The Aerial supplied would be ok in main reception areas however you really need an amplified roof mounted aerial as you get further away from the main coverage area.

    I had good results with a small magnetic aerial similar to the one supplied with the module but reception improved when I installed an amplified roof mounted DAB-FM unit. FYI my location is getting towards the outer coverage map area.
    GA-Z77N-WIFI, i5-2400S, 8GB, Intel 520 128GB SSD, M4-ATX Modified, 2 Rev Cams, 2 Web Cams
    8" 16:9 TRANSFLECTIVE, Win8-64, Dual GPS RX and Garmin PC + Odyssey Nav, FM-DAB+, BB-Rec
    T-Screen HVAC control, custom microcontrollers, code and FE. CarPC Project

Similar Threads

  1. Replies: 1
    Last Post: 04-28-2008, 11:52 PM
  2. On-Board Digital Equalizer
    By Cheekz185 in forum Car Audio
    Replies: 4
    Last Post: 05-24-2005, 05:47 PM
  3. Frustrated with my digital WW board....
    By Waveblaster785 in forum LCD/Display
    Replies: 15
    Last Post: 03-12-2005, 04:42 PM
  4. Fried my Digital WW board....
    By Waveblaster785 in forum LCD/Display
    Replies: 9
    Last Post: 02-21-2005, 09:26 PM
  5. SB Value Digital I/O Board???
    By RaZor in forum General Hardware Discussion
    Replies: 6
    Last Post: 04-18-2001, 11:45 PM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •