FM Radio without Headset - Here is the Solution

[dodo-dk]

Hi at all!

First, sorry for my bad english.

I have a software solution to use the FM Radio without Headset, i know that in the headset is the antenna!

You must change a value in the Registry under:

HKLM/System/State/Hardware/ and now you must chance the Headset value to 1.

When you plug the headset in the device is change the Value automatic to one. When ist not plugged than is 0.

But without antenna i can´t find radioprogramms :-(

[Perjan]

How about the usb charger cable able to find radioprogramms then? Could be usefull in combination with gps using TMC.

[paalkr]

How about the usb charger cable able to find radioprogramms then? Could be usefull in combination with gps using TMC.

I tryed that, but with no success, can't find any stations.

PK

[dcbehan]

Looks like we're getting closer. Good work, dodo-dk.

I can't get any stations either and it doesn't look like you can specify a station if it doesn't scan and identify it. Hmmm. Also, it doesn't look like the registry hack stays after a soft reset either.

db

[sas90850]

Capture a photo to indicate that it can open the Radio after change the registry as describe at first post. However, the radio cannot detect any signal

[Stal-Ker]

That is possible, if you attaches a thin wire(ca.0.5M) to pin 7 ANTENA.
Here http://forum.xda-developers.com/showthread.php?t=284512

[Ahqar]

Capture a photo to indicate that it can open the Radio after change the registry as describe at first post. However, the radio cannot detect any signal

Now all we need is someone to hack together an external antenna that wont disable the internal speaker.

If anyone manages it don't forget to post about it here.

With pictures :D

[MasK]

Now all we need is someone to hack together an external antenna that wont disable the internal speaker.

If anyone manages it don't forget to post about it here.

With pictures :D

As for the Atom/6828, the external speaker can still be powered on with the earphones plugged in. This feature is only available to the radio application.

Does this HTC device have this?

[victoradjei]

As for the Atom/6828, the external speaker can still be powered on with the earphones plugged in. This feature is only available to the radio application.

Does this HTC device have this?


Yes it does. Someties you can even have both :)

[DonQuichotte]

Hello!

I'm a bit confused. How does TCM work when the FM device only recognizes stations or transmisions when earphones are pluged in? When in navigation, with TCM capable software, you have to plug in the earphones so you can use TCM? That sound a bit strange to me. Can someone provide a clarification please.

...bye DonQ

[Perjan]

Hello!

I'm a bit confused. How does TCM work when the FM device only recognizes stations or transmisions when earphones are pluged in? When in navigation, with TCM capable software, you have to plug in the earphones so you can use TCM? That sound a bit strange to me. Can someone provide a clarification please.

...bye DonQ

TMC is encoded in rds, since the artemis is able to use RDS when using the antenna in theory it should be able to translate the tmc out of the RDS. Thus this is merely a software tweak. Its up to us to couple all the loose strings...

[DonQuichotte]

Thanks, but that wasn't my question? I know how TCM works, but as stated in a post above, the artemis can tune in to a radio station only with pluged-in earphones. Thus I count one thing to another and come to this conclusion: no pluged-in earphones = no radio station = no RDS = no TCM!? If that's the case the whole TMC feature in artemis is just a joke.
So is TCM working with the bare artemis (none attached wires of any kind)?

...bye DonQ

[psargent]

Here's my question regarding this radio issue for all you electrical engineers out there:

Would it be possible to construct a combo mini-usb radio antenna and audio adapter that would take the place of the earphones as the antenna yet be small enough not to stick out much more than the current 3.5mm headphone adapter that is available on Expansys?

http://www.mobileplanet.com/p.aspx?i=138247

That way you could enable the radio and other functions and still use your good headphones. Or, if the audio adapter and antenna couldn't be combined, with a "mini usb radio antenna", you could at least use A2DP with bluetooth headphones to listen to the radio.

Just food for thought...what do you think?

[Flocky]

There is a easier way than messing around with pins and wire...

http://www.expansys.com/htc/p_htc_item.aspx?i=140831

But I'm not sure if TMC will work with this...

Greets, Flocky

[dcbehan]

The FM radio does not work with either the audio adapter or the audio/power splitter. I have both and just get the message to plug in the earphones that came with it.

db

[Stal-Ker]

The FM radio does not work with either the audio adapter or the audio/power splitter. I have both and just get the message to plug in the earphones that came with it.

db

Change the Registry (Post #1 here), and select output in Program Menu->Output "Headset"...
But Radio need Antena!

[psargent]

That was exactly my point in my previous post! We all know that the current adapters will allow you to CONNECT a 3.5mm headset to the P3300, the problem is the lack of an antenna in standard headphones to make the radio work. It would seem to me that a mini usb to 3.5 adapter with a BUILT-IN radio antenna would solve this problem.

Now if only I had the capital and the electronic knowledge to invent it! ;)

[kasperke]

the fm radio band is a 98 cm band so you need at least 50 cm cable to have a decent signal. With other words..if you cut the antenne (cable for a mobile phone or pda) you loose the signal. Nothing more or nothing less than this.

Better would be a small cable you could run in and out your phone automaticly (by hand pulling or something) when you're in need of the radio.

Btw sorry for my bad english

[XenoV]

the fm radio band is a 98 cm band so you need at least 50 cm cable to have a decent signal. With other words..if you cut the antenne (cable for a mobile phone or pda) you loose the signal. Nothing more or nothing less than this.

Better would be a small cable you could run in and out your phone automaticly (by hand pulling or something) when you're in need of the radio.

Btw sorry for my bad english

Just a small correction: The FM radio band is 3m or 300 cm wavelength. So the best antennalength would be a quarter wave which equals 75 cm :)

[Aranach]

Change the Registry (Post #1 here), and select output in Program Menu->Output "Headset"...
But Radio need Antena!

This is a great solution, but you cannot derive the sound to an a2dp headsets, isn't it?

[Stal-Ker]

Maybe like this:
http://forum.xda-developers.com/showthread.php?t=263745

[gzamora]

You are talking about TMC on Artemis...
Is it working yet?

How can you access to TMC data?

Programs like destinator need a serial port to read TMC data. Which serial port is in Artemis?

[Bart1981]

Would this work........

I have a Mr Handsfree Carkit. If I connect the P3300 with the carkit through bluetooth, and also connect the headset. Then you have a antenna and possibly TMC. But what software do you need to decode the TMC signals out of the RDS signals?

Or is it complete nonsense I'm thinking of right now?

[gzamora]

Would this work........

I have a Mr Handsfree Carkit. If I connect the P3300 with the carkit through bluetooth, and also connect the headset. Then you have a antenna and possibly TMC. But what software do you need to decode the TMC signals out of the RDS signals?

Or is it complete nonsense I'm thinking of right now?


If you connect the headset you have an antenna, so you can obtain RDS data.
Destinator can interpretate TMC data, but destinator reads a serial port for TMC data
Artemis don't have that serial port, but data is there

We need a program to copy data from RDS radio and write to a virtual serial port

[maurizio.n]

If you connect the headset you have an antenna, so you can obtain RDS data.
Destinator can interpretate TMC data, but destinator reads a serial port for TMC data
Artemis don't have that serial port, but data is there

We need a program to copy data from RDS radio and write to a virtual serial port

Only HTC can write this program. If we have source code of the FM Radio Application we could do the job....

[thefamous]

That was exactly my point in my previous post! We all know that the current adapters will allow you to CONNECT a 3.5mm headset to the P3300, the problem is the lack of an antenna in standard headphones to make the radio work. It would seem to me that a mini usb to 3.5 adapter with a BUILT-IN radio antenna would solve this problem.

Now if only I had the capital and the electronic knowledge to invent it! ;)

try to attach a normal mini USB cable... heheh it's all right for hear the radio via phone speacker... yuppyyyy

[gzamora]

http://bp3.blogger.com/_cMwYPTDK9e0/RXpgB8X0cTI/AAAAAAAAAAk/BGrJq-U5GIE/s320/Headset_Stal_Ker1.jpg

Mini USB are pin 1-5 and antenna is pin 7...

[Innovator]

http://cgi.benl.ebay.be/GNS-FM9-RDS-TMC-Kabel-fuer-Loox-N500-N520-N560-NEU_W0QQitemZ180076250552QQihZ008QQcategoryZ38920Q QrdZ1QQcmdZViewItem

It's not for the HTC P3300, but a carcharger + TMC antenna in one does exist... hopefully soon for the P3300. Don't know if there exists a converter for this model to a 3,5" usb for our P3300.

Also sort of headphone plug with just antenna instead of headphones (something short / not disturbing) would be interesting...

[Innovator]

http://cgi.benl.ebay.be/TMC-Kurzstab-Antenne-Wurfantenne-Ersatz-V33_W0QQitemZ190075942543QQihZ009QQcategoryZ77359Q QrdZ1QQcmdZViewItem

Some shop in Germany, the cheapest way i found up till now for about €36 shipping included. Mayby if your a technician you can make it by yourself but I can't :)
The antenna sticks out, but i find it more comfortable than some hanging earpones...

The easiest way should be a simple carcharger with TMC antenna built in like in my previous post (but expensive around €60), allready available for other brands than P3300.
If you find cheaper tmc antenna's or reasonable priced carchargers with tmc antenna built in, please post, to close this topic finally.

Cheers!
Innovator

[SpikeUK]

With an HTC P3300, does anyone know if it is possible to listen to the radio using ear-buds plugged into a bluetooth gadget such as this
http://www.mobilefun.co.uk/product/7630.htm,
whilest at the same time having the HTC supplied ear-phones plugged in so that the HTC has an aeriel.

In other words, will the HTC P3300 send audio to it's ear-buds and send audio out on bluetooth at the same time. I just want to check before I start buying any more kit. Thanks

[SurfaceCleanerZ]

Hi,
I recently bought an adaptor for my Orbit, which provides an 3,5mm headphone jack and has an mic built in. I'm able to hear radio (without reg hack) with this adaptor plugged in. The headset doesn't need to be plugged into the adaptor!!!

So it should be possible to use such an adaptor as cheap free-speech solution with the possibility of TMC (hardware), IF someone is able to hack the FM-radio, so that it lets RDS data out to a program such as DecoRDS. Then writing a wrapper to send the decoded data to a serial port should be easily (like the port wrapper for gps, neede for gps tuner...).
Has anyone the HTC 3in1 adaptor? Is radio possible with the original headset plugged into it? Then my adaptor should work behind the 3in1 one, too. Then charging and radio/TMC would be possible.

regards,
Stefan