[Hackrf-dev] release 2017.02.1

[Michael Ossmann]

Release 2017.02.1 is tagged in git with packages available for download:

https://github.com/mossmann/hackrf/releases


HackRF 2017.02.1 Release Notes

To upgrade to this release, you must update libhackrf and hackrf-tools on your
host computer.  You must also update firmware on your HackRF.  It is important
to update both the host code and firmware for this release to work properly.
If you only update one or the other, you may experience unpredictable behavior.

Major changes in this release include:

- Sweep mode: A new firmware function enables wideband spectrum monitoring by
  rapidly retuning the radio without requiring individual tuning requests from
  the host computer.  The new hackrf_sweep utility demonstrates this function,
  allowing you to collect spectrum measurements at a sweep rate of 8 GHz per
  second.  Thanks to Mike Walters, author of inspectrum, for getting this
  feature working!

- Hardware synchronization: It is now possible to wire the expansion headers of
  two or more HackRF Ones together so that they start sampling at the same
  time.  This is advantageous during phase coherent operation with clock
  synchronized HackRFs.  See the -H option of hackrf_transfer.  Thank you, Mike
  Davis!

- A new utility, hackrf_debug, replaces three older debug utilities,
  hackrf_si5351c, hackrf_max2837, and hackrf_rffc5071.

- Power consumption has been reduced by turning off some microcontroller
  features we weren't using.

There have been many more enhancements and bug fixes.  For a full list of
changes, see the git log.

Special thanks to Dominic Spill who has taken over much of the software
development effort and has helped with nearly every improvement since the
previous release!