Merge r6461:6464 from jcorgan/t162-staging into trunk.

* Final gr.top_block and gr.hier_block2 implementation inside
  gnuradio-core/src/lib/runtime

* Implementation of gr.hier_block2 versions of all the old-style blocks
  in blks.  These live in blks2.

* Addition of gr.hier_block2 based versions of gr-wxgui blocks

* Conversion of all the example code in gnuradio-examples to use this
  new code

* Conversion of all the gr-utils scripts to use the new code

The OFDM examples and related hierarchical blocks have not yet been
converted.  Code in the rest of the tree that is outside the core
and example components has also not yet been converted.



git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@6466 221aa14e-8319-0410-a670-987f0aec2ac5

1 files changed, 46 insertions, 0 deletions

diff --git a/gnuradio-examples/python/dect/README b/gnuradio-examples/python/dect/README
new file mode 100644
index 000000000..c8853f185
--- /dev/null
+++ b/gnuradio-examples/python/dect/README
@@ -0,0 +1,46 @@
+This directory contains a work in progress service monitor for DECT
+digital cordless phone base stations and handsets.
+
+
+Status
+------
+
+2007 Apr 27 - Converted to new hier_block2 format
+2007 Apr 03 - Development on hold.
+2007 Feb 11 - Added GMSK demodulation and option to log to file
+2007 Feb 10 - Able to tune and log filtered baseband to file
+
+
+Files
+-----
+
+usrp_dect.py     - DECT receiver application
+
+dect_receiver.py - Top-level hierarchical block (new type) implementing 
+                   receiver
+
+usrp_source.py   - Hierarchical block (new type) implementing a USRP 
+                   complex source, with convenience functions for tuning, 
+                   gain, decimation, etc.
+
+gmsk2.py         - Hierarchical block (new type) implementing GMSK
+                   modulation and demodulation.  This will eventually go
+                   into the core blksimpl directory
+
+DECT Modulation Details
+-----------------------
+
+In the US, the FCC has allocated four carrier frequencies for DECT usage:
+
+Channel		Frequency
+-------		---------
+   1		1921.536 MHz
+   2		1923.264 MHz
+   3		1924.992 MHz
+   4		1926.720 MHz
+
+These are spaced at 1.728 MHz intervals.
+
+The DECT PHY uses GMSK with a 0.5 bandwidth-time product at 1.152 Msym/sec,
+for an occupied bandwidth (99% power) of 1.186 MHz (1.03 x symbol rate.)
+