Special Message Formats
Normal WSPR messages consist of a callsign, 4-digit grid locator,
and power level in dBm. These messages are always preferred when appropriate.
However, compound callsigns (i.e., callsigns with add-on prefix or suffix)
cannot fit into the 28 bits allocated in a standard message. Similarly, 6-digit
locators cannot fit into 15 bits. Messages using these components are therefore
sent using a two-transmission sequence. For example, if the callsign is
PJ4/K1ABC, the 6-digit grid locator is FK52UD, and the power level 37 dBm, the
following messages will be sent in alternating transmissions:
PJ4/K1ABC 37 <PJ4/K1ABC> FK52UD 37
If you have special need to use a 6-digit locator with a normal
callsign, check the box Force transmission of 6-digit
locator. If the callsign is K1ABC, the 6-digit grid locator FN42AX,
and the power level 37 dBm, the following messages will then be sent in
alternating transmissions:
K1ABC FN42 37 <K1ABC> FN42AX 37
Callsigns enclosed in angle brackets are actually sent as 15-bit
hash codes. If such a code is received by another station before the full
callsign has been received, it will be displayed as <...> on the decoded text line. Once
the full callsign has been received, the decoder will thereafter recognize the
hash code and fill in the blanks. Two very different callsigns might have the
same hash code, but the 15-bit hash-code length ensures that in practice such
collisions will be rare.
Please note that messages with compound callsigns or 6-digit
locators will not be properly decoded by WSPR versions earlier than 2.0. Further
details on message formats can be found in Appendix B, and in the WSPR source
code.
7
Sent: Saturday, January 09, 2010 6:21 PM
Subject: LF: WSPR LA3
Hi Klaus,
Yes I'm using
V2
However:
100109
1456 9 -22 2.4 0.503919 LA3/O28WJJ
10 -3
13 0
100109 1500 7 -24 1.6
0.503921 LA3/O28WJJ
10
-1 1 0
100109 1502 6
-25 1.8 0.503919 <...> JO28WJ
10 0
3 0
100109 1506 13 -18 1.7
0.503918 <...> JO28WJ 10
-1 1 0
100109 1508 17
-14 1.7 0.503916 LA3/O28WJJ
10
0 1 0
100109 1510 16
-16 1.8 0.503915 <...> JO28WJ
10 0
1 0
100109 1512 11 -20 1.8
0.503915 LA3/O28WJJ
10
0 1 0
100109 1516 14
-16 1.7 0.503896 LA3/O28WJJ
10
-1 6 0
100109 1518 15
-15 1.8 0.503895 <...> JO28WJ
10 0
1 0
100109 1520 15
-15 1.7 0.503896 LA3EQ/M
10
1 1 0
100109 1522 11
-19 1.8 0.503898 <LA3EQ/M> JO28WJ
10 1 1
0
The question I
suppose is what was LA3EQ/M using to generate the
transmissions,
WSPR on a PC,
or something homebrew for /M use?
73,
Lee
M0LMH.
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