|
Note that all channels use the upper
sideband.
| Band
(Mtr) |
Dial
Frequency (MHz) |
Lower
Band Pass Frequency (MHz) |
Upper
Band Pass Frequency (MHz) |
Band
Width (Hz) |
| 33400m |
0.0072 |
0.0087 |
0.0089 |
200 |
| 2200m |
0.1360 |
0.1374 |
0.1376 |
200 |
| 600m |
0.4742 |
0.4756 |
0.4758 |
200 |
| 160m |
1.8366 |
1.8380 |
1.8382 |
200 |
| 80m |
3.5926 |
3.5940 |
3.5942 |
200 |
| 60m |
5.2872 |
5.2886 |
5.2888 |
200 |
| 40m |
7.0386 |
7.0400 |
7.0402 |
200 |
| 30m |
10.1387 |
10.1401 |
10.1403 |
200 |
| 20m |
14.0956 |
14.0970 |
14.0972 |
200 |
| 17m |
18.1046 |
18.1060 |
18.1062 |
200 |
| 15m |
21.0946 |
21.0960 |
21.0962 |
200 |
| 12m |
24.9246 |
24.9260 |
24.9262 |
200 |
| 10m |
28.1246 |
28.1260 |
28.1262 |
200 |
| 6m |
50.2930 |
50.2944 |
50.2946 |
200 |
| 4m |
70.0910 |
70.0924 |
70.0926 |
200 |
| 2m |
144.4890 |
144.4904 |
144.4906 |
200 |
Channel bandwidth used is 6 Hz and
the transmission time is 110.6 sec. The length of a single tone is
0,6827 s and maximum allowed drift is about 1 Hz.
More information and databases are at
WSPRnet.org
References:
WSPR implements a
protocol designed for probing potential propagation paths with
low-power transmissions. Normal transmissions carry a
station's callsign, Maidenhead grid locator, and transmitter power
in dBm. The program can decode signals with S/N as low as -28
dB in a 2500 Hz bandwidth. Stations with internet access can
automatically upload their reception reports to a central database
called WSPRnet, which includes a
mapping facility. To see a live version of the map pictured at
top right, click here.
http://physics.princeton.edu/pulsar/K1JT/wspr.html
Also
see related pages:
Computer
to Radio Soundcard Interface Computer Sound-card Interface.
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