[aprssig] mic-e: technical info or source code ??
Lynn W. Deffenbaugh (Mr)
ldeffenb at homeside.to
Wed May 29 15:55:37 CDT 2013
And for completeness, here's the page that has the AX.25 specification PDF:
Decidedly NOT for the faint of heart!
Lynn (D) - KJ4ERJ - Author of APRSISCE for Windows Mobile and Win32
PS. http://tinyurl.com/pv9zclc describes "faint of heart" as
> "Faint" is the correct word to use in the phrase "faint of heart". In
> this usage, it refers to timidity, but is also used to describe a
> temporary loss of consciousness
That "loss of consciousness" is certainly what happens to me every time
I read that specification. aprs101.pdf is simple by comparison.
On 5/29/2013 4:37 PM, Lynn W. Deffenbaugh (Mr) wrote:
> Mic-E is one form of coordinate and status encoding used by APRS which
> is AFSK modulation (1200/2200 Hz) of an AX.25 bit stream using
> exclusively UI packets. The actual packet encoding is described in
> Lynn (D) - KJ4ERJ - Author of APRSISCE for Windows Mobile and Win32
> On 5/29/2013 4:28 PM, Kristoff Bonne wrote:
>> I'm trying to find the technical documentation on the mic-e protocol.
>> (i.e. the 300 ms burst to be send at the end of a voice transmission
>> on a repeater).
>> There is a webpage on info.aprs.net, but that does not even mention
>> the modulation scheme, baudrate, etc.
>> Is the open-source code available for decoding and encoding mic-e
>> transmissions? Is there an open-source hardware implementation of it?
>> kristoff - ON1ARF
>> aprssig mailing list
>> aprssig at tapr.org
> aprssig mailing list
> aprssig at tapr.org
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