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The N900 is now 15 years old! (8)
to Nokia N900 by whayong - 1 hr, 5 mins ago -
Sailfish OS for the Motorola Moto G7 Power (XT1955-5) - (ocean) (4)
to SailfishOS by Maemish - 4 days, 21 hrs ago - more...
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2010-03-19
, 17:12
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Posts: 272 |
Thanked: 52 times |
Joined on Jan 2010
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#32
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i was going to ask same question. using 87.5 would be perfect
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2010-03-26
, 16:14
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Posts: 29 |
Thanked: 3 times |
Joined on Feb 2010
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#33
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please someone help us! we need 87.5! or dots.pair frequencies
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2010-03-28
, 09:42
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Posts: 203 |
Thanked: 375 times |
Joined on Nov 2009
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#34
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Yay! Got it!
According to the drivers documentation found on http://www.mjmwired.net/kernel/Docum...nux/si4713.txt the transmitters lower range is 76 MHz. However, the limit on mine is set to 87.5 MHz. I guess this depends on where you bought the device as 87.5 is also the lower limit here in Germany.
You can check the limits on your device/region by executing
The transmitters properties (such as the current frequency) can be changed using a tool called v4l2-ctl. I have found a binary compiled for the N900 in this thread:
http://talk.maemo.org/showthread.php?t=46427
Go there, download and install the provided package (lfocus).
After installing lfocus you should have the tool v4l2-ctl installed in /usr/share/lfocus/v4l2-ctl.
Now start your FM transmitter. v4l2-ctl will work only while the transmitter is on.
Set the frequency by executing the following command as root:
This will set the frequency to 87.5 MHz. Change the value to your desire within the valid range.
PLEASE INFORM YOURSELF ABOUT THE LOCAL REGULATIONS FOR FM TRANSMITTERS AND MAKE SURE THAT YOU DO NOT VIOLATE THEM!!!
Optionally you can change fm-boost to switch frequency every time by adding the above command in the file /sbin/fm-boost. Make sure you insert it after the "#!/bin/sh" and before "exit 0"
Here is an example of mine:
If you are using simple-fmtx-widget and have set it up to execute fm-boost you can now turn on your fm transmitter and immediately tune it down by just tapping the widget.
Have fun!
Last edited by mzanetti; 2010-03-28 at 11:26. Reason: Added more informations
According to the drivers documentation found on http://www.mjmwired.net/kernel/Docum...nux/si4713.txt the transmitters lower range is 76 MHz. However, the limit on mine is set to 87.5 MHz. I guess this depends on where you bought the device as 87.5 is also the lower limit here in Germany.
You can check the limits on your device/region by executing
Code:
cat /sys/class/i2c-adapter/i2c-2/2-0063/region_bottom_frequency
http://talk.maemo.org/showthread.php?t=46427
Go there, download and install the provided package (lfocus).
After installing lfocus you should have the tool v4l2-ctl installed in /usr/share/lfocus/v4l2-ctl.
Now start your FM transmitter. v4l2-ctl will work only while the transmitter is on.
Set the frequency by executing the following command as root:
Code:
/usr/share/lfocus/v4l2-ctl -d /dev/radio0 -f 87.5
PLEASE INFORM YOURSELF ABOUT THE LOCAL REGULATIONS FOR FM TRANSMITTERS AND MAKE SURE THAT YOU DO NOT VIOLATE THEM!!!
Optionally you can change fm-boost to switch frequency every time by adding the above command in the file /sbin/fm-boost. Make sure you insert it after the "#!/bin/sh" and before "exit 0"
Here is an example of mine:
Code:
#!/bin/sh /bin/echo 120 > /sys/class/i2c-adapter/i2c-2/2-0063/power_level /usr/share/lfocus/v4l2-ctl -d /dev/radio0 -f 87.5 exit 0
Have fun!
Last edited by mzanetti; 2010-03-28 at 11:26. Reason: Added more informations
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2010-03-28
, 11:09
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Posts: 124 |
Thanked: 10 times |
Joined on Jan 2007
@ Italy
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#35
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great it works for me, but i had to run v4l2-ctl command while fm transmitter is on. When off i get "no such device" error in terminal!
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2010-04-01
, 19:29
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Posts: 197 |
Thanked: 25 times |
Joined on Apr 2010
@ Europe
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#36
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Originally Posted by ToJa92
sorry but if the law is the problem, then the WiFi functionality has to be limit to 11 channels!
I don't think the radio transmitter chip in the N900 is able to go below 88.0 anyway due to laws and such.
the producer of the hardware (or in this case even the software) isn't responsible for what the user does with the equipment.
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2010-04-01
, 19:40
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Posts: 197 |
Thanked: 25 times |
Joined on Apr 2010
@ Europe
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#37
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hmm on now the only thing left to do is to put this in the normal repository and put a nice GUI around it.
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2010-04-02
, 19:42
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Posts: 21 |
Thanked: 2 times |
Joined on Mar 2010
@ uk
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#38
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could add it too Simple FMTX desktop widget v0.5.0
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2010-04-02
, 22:05
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Posts: 1,559 |
Thanked: 1,786 times |
Joined on Oct 2009
@ Boston
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#39
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For those interested, here's my post about this subject when it came up awhile ago. Nokia's official position is to leave it as is due to legal reasons. If you live in the US, making this change is probably breaking a federal law and subject to fine and confiscation of your N900. 
Just FYI.
Just FYI.
__________________
Unofficial PR1.3/Meego 1.1 FAQ
Unofficial PR1.3/Meego 1.1 FAQ
***
Classic example of arbitrary Nokia decision making. Couldn't just fallback to the no brainer of tagging with lat/lon if network isn't accessible, could you Nokia?
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2010-04-03
, 15:17
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Posts: 21 |
Thanked: 2 times |
Joined on Mar 2010
@ uk
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#40
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Originally Posted by Flandry
hi, i bought the zune player with the fm transmitter in new york when i went and that went down to 87.5 thats why i wanted the phone to go as low as that, so im sure they will be alright with it
For those interested, here's my post about this subject when it came up awhile ago. Nokia's official position is to leave it as is due to legal reasons. If you live in the US, making this change is probably breaking a federal law and subject to fine and confiscation of your N900.
Just FYI.
There is a way that seems right to a man, but in the end it leads to death. Proverbs 14:12