[Discuss-gnuradio] DPSK2 Demodulator

Hi,

we are trying to use DPSK2 modulator and demodulator during our first
trials.
As far as we can see there is hardly any documentation available on this.

We would appreciate a few explaining words from somebody who knows how to
configure the demodulator so that data is correctly received.
What synchronization method(s) is/are included?
Raised-cosine-filter for matched filtering seems to be included?

We tried like this with no success:
Modulator:
Type: DQPSK
Sample/Symbol: 2
Excess BW: 0.35
GrayCode: YES
Verbose: OFF
Logging: OFF

Demodulator:
Sample/Symbol: 2
Excess BW: 0.35
FLL Alpha: 0.01
Phase Alpha: 0.1
Timing Max Dev: 1.5
Omega Relative Limit: 0.005
GrayCode: YES
Verbose: OFF
Logging: OFF
Sync Out: ON

Thanks in advance!
Ralf

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