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-rw-r--r--gnuradio-examples/python/digital/simple_qam.py76
1 files changed, 0 insertions, 76 deletions
diff --git a/gnuradio-examples/python/digital/simple_qam.py b/gnuradio-examples/python/digital/simple_qam.py
deleted file mode 100644
index 947d7faad..000000000
--- a/gnuradio-examples/python/digital/simple_qam.py
+++ /dev/null
@@ -1,76 +0,0 @@
-
-from gnuradio import gr, blks2, packet_utils
-
-# Some constants
-NOISE_VOLTAGE = 0.1
-FREQUENCY_OFFSET = 0.0000
-TIMING_OFFSET = 1.0
-SAMPLES_PER_SYMBOL = 2
-GAIN = 1.0
-SW_DECIM = 1
-BAND_MIDPOINT = 1.0
-BAND_WIDTH = 0.5
-FREQ_ALPHA = 0.005
-EXCESS_BW = 0.35
-
-# Modulation/Demodulation methods
-modulator = blks2.qam_mod(16, SAMPLES_PER_SYMBOL)
-demodulator = blks2.qam_demod(16, SAMPLES_PER_SYMBOL, freq_alpha=FREQ_ALPHA)
-
-#Transmission Blocks
-packet_transmitter = blks2.mod_pkts(modulator, access_code=None, msgq_limit=4,
- pad_for_usrp=True)
-# Channel
-channel = gr.channel_model(NOISE_VOLTAGE, FREQUENCY_OFFSET, TIMING_OFFSET)
-# Receiver Blocks
-chan_coeffs = gr.firdes.low_pass(GAIN, SW_DECIM * SAMPLES_PER_SYMBOL,
- BAND_MIDPOINT, BAND_WIDTH, gr.firdes.WIN_HANN)
-channel_filter = gr.fft_filter_ccc(SW_DECIM, chan_coeffs)
-packet_receiver = blks2.demod_pkts(demodulator, access_code=None, callback=None,
- threshold=-1)
-# Put it all together and start it up (although nothing will be done
-# until we send some packets).
-tb = gr.top_block()
-tb.connect(packet_transmitter, channel, channel_filter,
- packet_receiver)
-tb.start()
-
-# The queue into which recieved packets are placed
-pkq = packet_receiver._rcvd_pktq
-
-# The function to create a packet and place it in a queue to be sent.
-sender = packet_transmitter.send_pkt
-
-# Some some packets (The second will not be recieved because it gets cut off
-# before it can finish. I think this occurs during modulation.)
-
-# Send some large messages to start off with to let things lock.
-for i in range(0, int(20.0/SAMPLES_PER_SYMBOL)):
- sender('a'*4000)
-
-sender('hello1')
-sender('hello2')
-sender('hello3')
-sender('hello4')
-sender('hello5')
-sender('hello6')
-sender('hello7')
-sender('hello8')
-sender('hello9')
-sender('hello10')
-sender('hello11')
-sender('hello12')
-sender('world')
-sender(eof=True)
-
-# Wait for all the packets to get sent and received.
-tb.wait()
-
-# Check how many messages have been received and print them.
-cnt = pkq.count()
-print('There are %s messages' % cnt)
-for a in range(0, cnt):
- msg = pkq.delete_head()
- ok, payload = packet_utils.unmake_packet(msg.to_string(), int(msg.arg1()))
- print("Message %s is %s" % (a, payload))
-