SP3CMA — reception at SO8OO

Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.

FT8 activity

DXCC entity inferred from callsign: Poland Most frequent locator attributed to this token: JO83

Receiver-side FT8 activity involving SP3CMA, decoded by SO8OO in southeastern Poland. 898 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, across 68 UTC dates in the available aggregate history. Observed between 2026-06-10 and 2026-10-23.

These are automated observations at the SO8OO receiver, not an official contact log. Times are UTC. Attribution follows decoded FT8 message structure: CQ uses the first token and directed-looking messages use the second. Free text that resembles a directed message can be attributed imperfectly. Summary S/N reflects propagation plus SO8OO receiver, antenna and local-noise conditions. Counts are not adjusted for monitoring outages; transmissions that were not decoded are absent. Inferred entity and location data may be inaccurate for portable, remote or special-event operation.

SO8OO decoded 898 FT8 messages attributed to SP3CMA as the transmitting token by decoded message structure across 68 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (76%), followed by 40 m (12%) and 60 m (11%). Most decodes (90%) fell within the six-hour window 18:00-00:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (90%); the estimated median was +1.6 dB.

Overview

898
Messages attributed
68
UTC dates decoded
145
Active 15-min windows
+1.6 dB
Estimated median S/N

Bands

80m · 678 60m · 100 40m · 112 20m · 8
First attributed message: 2026-06-10
Last attributed message: 2026-10-23 16:05 UTC

Observed FT8 message patterns

Attributed sample
898 messages
Active dates
68 UTC dates
Estimated median S/N
+1.6 dB
Estimated 10th-90th percentile
-8 to +8.3 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 11, moderate (-15 to -9 dB) 75, strong (≥ -8 dB) 812.

WSJT-X defines S/N reports against a 2,500 Hz reference noise bandwidth. The ranges above are SO8OO receiver-side display categories, not official WSJT-X classes, transmitter-power measurements or estimates of how easy the station is to hear elsewhere. Statistics include only successful decodes on SO8OO's monitored FT8 channels; transmissions that were not decoded are absent.

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with SP3CMA in decoded directed-looking exchanges:

Attributed messages by UTC hour

Rolling 90-day UTC chart window. Counts follow decoded message structure: the first token for CQ, or the second token in a directed-looking message.

Most frequent locator attributed to SP3CMA

The map compares the centres and boundaries of the locator field attributed to this token by decoded message structure, 2° × 1° as a Maidenhead square, and SO8OO's six-character receiver square. The separation is not an exact antenna-to-antenna distance or a radio-path length.

Attributed locator
JO83 · 347 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
515 km (approx.)
Last such locator decoded
2026-09-30 20:22 UTC

A decoded locator can describe portable, remote or special-event operation and is not proof of a permanent station address or transmitter identity.

Observed FT8 exchanges

S/N cells show: decoded at SO8OO / report transmitted by the counterpart. An observed exchange is not a QSL or an official logbook confirmation.

Time UTCBandSP3CMA S/NCounterpartCounterpart S/NMsgsCapture
10-23 15:52 60m 0 / - 3B8FA - / -19 25 Partial capture
10-19 21:16 60m -5 / -4 EB5AFK -7 / - 2 ✓ Closing observed
10-19 21:14 60m -8 / - OE5GQQ - / -1 2 Partial capture
10-19 21:13 60m - / -12 EA3NE -1 / - 2 ✓ Closing fragment
10-19 21:13 60m - / -8 9K2GR -1 / - 2 ✓ Closing fragment
10-19 20:22 60m -5 / 0 SP3JHZ -1 / - 4 ✓ Closing observed
10-19 20:22 60m -6 / -11 9A2TN -10 / +2 6 ✓ Full exchange observed
10-19 20:16 60m -2 / - EA8AE - / -11 3 Partial capture
10-19 20:12 60m -4 / -4 E74K +2 / -1 5 ✓ Full exchange observed
10-18 21:27 60m - / +4 ER1CW -22 / - 2 ✓ Closing fragment
10-18 21:25 60m - / -3 DF1KG -3 / - 3 ✓ Closing fragment
10-18 21:23 60m - / 0 ON5RZ -4 / - 3 ✓ Closing fragment
10-18 21:21 60m - / -16 OK4KOP +4 / - 2 ✓ Closing fragment
10-18 21:12 60m - / -10 SV8YM +2 / - 2 ✓ Closing fragment
10-18 21:06 60m - / -6 HA7TM -4 / - 2 ✓ Closing fragment
10-18 21:01 60m - / -9 ER5DX +10 / - 2 ✓ Closing fragment
10-18 20:57 60m - / -10 GM4YTD -4 / - 2 ✓ Closing fragment
10-18 20:51 60m - / -1 HB9PLH -2 / - 2 ✓ Closing fragment
10-18 20:39 60m - / - SP2EWQ -8 / - 2 ✓ Closing fragment
10-18 20:32 60m -12 / -6 F5MYK -10 / - 2 ✓ Closing observed
10-18 20:29 60m - / 0 G3RLX -2 / - 2 ✓ Closing fragment
10-18 20:27 60m - / -10 DL6ZXG +6 / - 2 ✓ Closing fragment
10-18 20:26 60m - / -7 OZ7CL -8 / - 2 ✓ Closing fragment
10-18 20:26 60m - / -5 DF0TZ +2 / - 2 Partial capture
10-13 19:23 60m -10 / - A92AE - / -18 2 Partial capture
10-13 18:11 60m -4 / - Z30A - / -9 2 Partial capture
10-12 19:25 60m -10 / - BD8ENU - / -2 3 Partial capture
10-09 19:42 80m -3 / - LY8O -1 / -1 3 ✓ Closing observed
09-30 20:20 80m -1 / - 3Z100PKP - / +3 2 Partial capture
09-30 20:19 80m +2 / - DL50SOL - / - 2 Partial capture
09-23 21:01 80m -2 / -17 RI1FJZ -15 / -14 11 Partial capture
09-22 20:29 80m -5 / - RI1FJZ - / - 10 Partial capture
09-22 20:26 80m -8 / - RI1FJZ - / - 2 Partial capture
09-22 20:16 80m -7 / - RI1FJZ - / - 8 Partial capture
09-22 19:20 80m 0 / - RI1FJZ - / - 2 Partial capture
09-22 17:44 80m -1 / - RI1FJZ - / - 7 Partial capture
09-21 20:20 80m -2 / - RI1FJZ - / - 28 Partial capture
09-21 20:09 80m -13 / - RI1FJZ - / - 12 Partial capture
09-21 20:04 80m -9 / - RI1FJZ - / - 4 Partial capture
09-21 19:57 80m -2 / - RI1FJZ - / - 9 Partial capture
09-21 19:45 80m -4 / - RI1FJZ - / - 14 Partial capture
09-20 20:22 60m +5 / -3 CN8DN -20 / - 3 ✓ Closing observed
09-19 19:32 80m +8 / - V51WH - / - 2 Partial capture
09-19 19:22 80m +4 / - V51WH - / - 10 Partial capture
09-19 18:59 80m +7 / - V51WH - / - 2 Partial capture
09-17 20:28 60m +6 / - IK2RZQ - / -14 2 Partial capture
09-17 20:25 60m +5 / - <...> - / +1 2 Partial capture
09-13 19:22 80m +1 / - HB3YPJ - / -14 3 Partial capture
09-13 12:26 40m +6 / - RA7E/P - / +2 7 Partial capture
09-11 19:56 60m +7 / - 9A60CBM - / -4 4 Partial capture

Recent FT8 messages decoded at SO8OO

Frequency values are decoder audio offsets in hertz, not RF frequencies.

60m 
UTC    dB Audio  Message
155845  +3 2630  3B8FA SP3CMA -16 (x15)
80m 
UTC    dB Audio  Message
210445  +2 2659  RI1FJZ SP3CMA JO83 (x2)
210600 -16 1222  SP3CMA RI1FJZ -20
210615  +2 2659  RI1FJZ SP3CMA R-15
201945  +5 2659  DL50SOL SP3CMA JO83 (x2)
202045  +0 2659  <3Z100PKP> SP3CMA R+03
202100  +8 2490  SP3CMA RR73; DL1LDB <...> +02
202230  -2 2659  3Z100PKP SP3CMA JO83
201730  -1 2612  OH5KNL SP3CMA -04
193845  +2 1536  SP3CMA SP5DFK/QRP R-02
194200  -2 2530  LY8O SP3CMA -01 (x2)
194245  -1 1854  SP3CMA LY8O 73
213900  -7 2612  JR6EZE SP3CMA -14
40m 
UTC    dB Audio  Message
161245  +6 2614  SO100PKP SP3CMA JO83 (x6)
122645 +11 2614  RA7E/P SP3CMA JO83 (x6)
122930  -1 1626  SP3CMA SO100PKP +17
122945  +4 2614  RA7E/P SP3CMA R+02
123000  +1 1626  SP3CMA RR73; DL5MKF <...> +14
20m 
UTC    dB Audio  Message
104745  -1 2608  VP5G SP3CMA JO83 (x4)
081230 -10  467  SP3CMA RI1FJL -10 (x2)
10m 
UTC    dB Audio  Message
204345 -12 1780  SP3CMA EA8UP R-08 (x2)

Decoder S/N history by band

Count-weighted daily averages across messages attributed to this profiled token and successfully decoded at SO8OO, limited to the rolling 90-day UTC chart window.

CW

CW history is temporarily unavailable.

Explore CW reception at SO8OO

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