I am oging to implement a weather band receiver using a DSP chip.
Tunner is available. But i can not find too much information about
weather band. Could any one tell me the modulation method of weather
band and give me some useful link about the detail of weather band.

Thanks in advance

In article , Jianhong Wang wrote:
I am oging to implement a weather band receiver using a DSP chip.
Tunner is available. But i can not find too much information about
weather band. Could any one tell me the modulation method of weather
band and give me some useful link about the detail of weather band.

It's just wideband FM. If you can pick up FM broadcast, you can just
slide that LO up a few MHz and get weather band.
--scott

--
"C'est un Nagra. C'est suisse, et tres, tres precis."

In article , Jianhong Wang wrote:
weather band. Could any one tell me the modulation method of weather
band and give me some useful link about the detail of weather band.

Weather Band is FM -- 162.55 and adjacent frequencies I believe.

--
Sven Weil
New York City, U.S.A.

(Sven Franklyn Weil) scribbled:

In article , Jianhong Wang wrote:
weather band. Could any one tell me the modulation method of weather
band and give me some useful link about the detail of weather band.

Weather Band is FM -- 162.55 and adjacent frequencies I believe.


Just follow the links on:
http://www.nws.noaa.gov/nwr/
I didn't see any technical data listed through a brief browsing, but I only
looked for a couple of minutes. You could probably contact someone
somewhere there and get any details of data transmission protocols you
might want.

The broadcasts seem to be NFM rather than WFM.

Seven frequencies are assigned to NWS: Think they start at 162.400

Steve