D23Sprite.jpg
Below are links to the .wav files taken from the launch site right up until burst. Using the APRS GPS data, I've included in the table the beginning and ending distance (units of meters) for each files.

Files
Time In
Time out
Close
Far
Delta-x

Close
Far

164908Z
1249
1249
0
0
50

50
50
before launch
175016Z
1350
1358
0
3418.202
2930

2930
4502.111

180545Z
1405
1410
6409.129
8545.505
4730

7965.54
9767.219

181023Z
1410
1415
8545.505
10681.88
6530

10754.84
12519.72

181550Z
1415
1424
10681.88
14527.36
9770

14476.03
17507.06

182408Z
1424
1427
14527.36
15809.18
10850

18131.92
19174.27

182733Z
1427
1432
15809.18
17945.56
12650

20247.29
21955.99

183225Z
1432
1442
17945.56
22218.31
16250

24209.62
27526.64

184248Z
1442
1447
22218.31
24354.69
18050

28626.14
30314.24

184737Z
1447
1447
24354.69
24354.69
18050

30314.24
30314.24

184937Z
1449
1452
24354.69
25636.52
19130

30969.47
31987.31
BURST!

The first Close/Far distances are altitude. The Delta-x is the horizontal distance and the final close/far is total distance = sqrt(x^2+y^2). Radio was a Kenwood TM-D710A with a 7dB over dipole yagi antenna.

Attached is a picture showing where the sprite was for most of the flight. It wrapped up on a rigging string and was at about 60 degrees. It was 2pm local time so the sprite would have partial Sun most of the time with peak amounts when it rotated toward the southwest.

Links to the sound files are below:

https://www.dropbox.com/s/2k791nas6u2xyqr/SDRSharp_20140823_164908Z_437262kHz_IQ.wav?dl=0
https://www.dropbox.com/s/8z348m63oaulzrg/SDRSharp_20140823_175016Z_437262kHz_IQ.wav?dl=0
https://www.dropbox.com/s/dcl4yflqz99ig9m/SDRSharp_20140823_180545Z_437262kHz_IQ.wav?dl=0
https://www.dropbox.com/s/czb9u4760efb5ay/SDRSharp_20140823_181023Z_437272kHz_IQ.wav?dl=0
https://www.dropbox.com/s/jkvnwvhzdj89g0u/SDRSharp_20140823_181550Z_437272kHz_IQ.wav?dl=0
https://www.dropbox.com/s/8gdc72t2pku2mrg/SDRSharp_20140823_182408Z_437272kHz_IQ.wav?dl=0
https://www.dropbox.com/s/e9m8ahfa7kf69oo/SDRSharp_20140823_182733Z_437272kHz_IQ.wav?dl=0
https://www.dropbox.com/s/plkyiqtsvvzaosc/SDRSharp_20140823_183225Z_437272kHz_IQ.wav?dl=0
https://www.dropbox.com/s/c5y7w141k24iwvs/SDRSharp_20140823_184248Z_437272kHz_IQ.wav?dl=0
https://www.dropbox.com/s/33ewitwkm6yvumz/SDRSharp_20140823_184737Z_437272kHz_IQ.wav?dl=0
https://www.dropbox.com/s/9tmk1kta6c07rnc/SDRSharp_20140823_184937Z_437272kHz_IQ.wav?dl=0

The signal definitely was weak at burst, hopefully it has some data in it.

Newly posted files! These were taken by Paul King with a small yagi directional antenna while chasing the balloon. The distance information needs to be posted for these. Here are the sound files:
https://www.dropbox.com/s/fxnqqm6s8saahxd/SDRSharp_20140823_145729Z_437210kHz_IQ.wav?dl=0
https://www.dropbox.com/s/22xf2uecge4xk68/SDRSharp_20140823_145739Z_437210kHz_IQ.wav?dl=0
https://www.dropbox.com/s/c2zcgvoofv5d4p6/SDRSharp_20140823_165545Z_437210kHz_IQ.wav?dl=0
https://www.dropbox.com/s/2m1bjbvf2uh845n/SDRSharp_20140823_182501Z_437210kHz_IQ.wav?dl=0