SP3CM — 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: JO82

Receiver-side FT8 activity involving SP3CM, decoded by SO8OO in southeastern Poland. 145 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 18 UTC dates in the available aggregate history. Observed between 2026-06-20 and 2026-10-21.

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 145 FT8 messages attributed to SP3CM as the transmitting token by decoded message structure across 18 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (83%), followed by 80 m (12%) and 20 m (5%). Several six-hour UTC windows tied for the largest share (50%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -7 dB.

Overview

145
Messages attributed
18
UTC dates decoded
31
Active 15-min windows
-7 dB
Estimated median S/N

Bands

80m · 18 40m · 120 20m · 7
First attributed message: 2026-06-20
Last attributed message: 2026-10-21 18:24 UTC

Observed FT8 message patterns

Attributed sample
145 messages
Active dates
18 UTC dates
Estimated median S/N
-7 dB
Estimated 10th-90th percentile
-18 to +1 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 23, moderate (-15 to -9 dB) 43, strong (≥ -8 dB) 79.

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 SP3CM 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 SP3CM

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
JO82 · 77 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
439 km (approx.)
Last such locator decoded
2026-10-21 18:13 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 UTCBandSP3CM S/NCounterpartCounterpart S/NMsgsCapture
10-21 18:19 80m +2 / 0 DL6EL +9 / - 5 ✓ Full exchange observed
10-21 18:19 80m -2 / - IQ4JO +8 / 0 7 Partial capture
10-21 18:13 80m +1 / - DG6ITP +18 / - 5 ✓ Closing observed
10-21 18:09 80m -2 / -14 DO5SMH -5 / - 2 Partial capture
10-21 18:07 80m -2 / +5 RX3ASQ +7 / - 4 ✓ Closing observed
10-21 18:06 80m -4 / - SP3DLD - / -13 2 Partial capture
10-21 17:59 80m -4 / +2 ON4MGV -4 / - 4 ✓ Closing observed
10-20 16:52 40m - / +2 PD2MAC -13 / - 4 ✓ Closing fragment
10-16 17:19 40m -20 / -8 SV2ROG -14 / - 4 ✓ Closing observed
10-16 15:01 10m - / -8 CR7BRV -5 / - 4 ✓ Closing fragment
10-14 18:17 40m - / -15 YO4GIY 0 / - 2 ✓ Closing fragment
10-13 15:56 40m -8 / +1 S57CT +4 / +7 4 Partial capture
10-13 15:53 40m -10 / +2 DK5FN -16 / -2 3 ✓ Full exchange observed
10-13 15:53 40m 0 / -9 OH3OJ +4 / +2 5 ✓ Full exchange observed
10-12 16:43 40m - / - IU5VLR -15 / - 3 ✓ Closing fragment
10-12 16:42 40m - / -15 R2EA 0 / - 2 Partial capture
10-12 16:36 40m - / -12 YL3CW 0 / - 2 ✓ Closing fragment
10-11 13:26 40m -11 / - SQ9ZAY -10 / - 5 ✓ Full exchange observed
10-10 09:56 40m -18 / - OZ6NC - / 0 3 ✓ Closing fragment
10-10 09:27 40m -16 / - SP5ETF - / -10 2 Partial capture
10-10 09:23 40m -14 / - DH1HF - / -8 2 ✓ Closing fragment
10-10 09:23 40m -14 / - DH1NGL -14 / - 6 ✓ Full exchange observed
10-10 09:23 40m -13 / - DL9KM -8 / -2 9 ✓ Closing observed
10-10 09:22 40m - / - SP8RWI -18 / - 2 Partial capture
10-09 16:19 40m - / - LB1PI -19 / - 3 Partial capture
10-09 16:17 40m - / - DL7ACA +8 / - 2 Partial capture
10-09 16:16 40m - / - F5PEG -9 / - 3 Partial capture
10-07 17:08 40m - / -2 DL6UM -1 / - 5 ✓ Closing fragment
09-30 09:31 40m -3 / - YO2UKG +9 / +1 4 ✓ Closing observed
09-30 09:12 40m - / -6 HA9OA +6 / - 2 ✓ Closing fragment
09-30 09:10 40m -11 / - PA1ER - / - 3 Partial capture
09-30 09:05 40m -15 / - G4HZW - / -12 3 ✓ Closing fragment
09-30 08:57 40m -3 / -10 SP4GDW -5 / - 7 ✓ Full exchange observed
09-30 08:57 40m -14 / -2 HA3TBL -14 / +5 5 ✓ Full exchange observed
09-30 07:02 40m - / - ON4KEB -7 / - 2 Partial capture
09-30 07:02 40m - / - LZ3CB +8 / - 2 Partial capture
09-28 18:03 40m - / - F1IQH -12 / - 4 ✓ Closing fragment
09-28 14:49 40m - / - DK8HC -9 / - 5 Partial capture
09-28 14:49 40m - / -10 IK4TVP -17 / - 4 Partial capture
09-27 08:58 40m -4 / - F1PBZ - / -15 5 ✓ Closing fragment
09-27 08:57 40m -11 / - SM7MDI - / +4 2 ✓ Closing fragment
09-27 08:51 40m -8 / - SQ3EWA - / - 3 Partial capture
09-27 08:50 40m -2 / - SA7C - / - 2 Partial capture
09-26 06:52 40m -10 / - OM1FED - / - 8 Partial capture
09-26 06:47 40m -7 / - OE6IWG - / - 3 Partial capture
09-25 20:46 40m - / - M1DBX -8 / - 2 Partial capture
09-25 20:40 40m - / - EA1EYL -13 / - 5 Partial capture
09-25 20:38 40m - / - IU5HIU -19 / - 5 Partial capture
09-25 20:28 40m - / -10 DJ3IV -4 / - 2 Partial capture
09-25 20:25 40m - / - OH7BDI +2 / - 2 Partial capture

Recent FT8 messages decoded at SO8OO

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

80m 
UTC    dB Audio  Message
181400  +1  455  DG6ITP SP3CM RR73
181415 +16  456  SP3CM DG6ITP R+14 (x2)
181915  +8 2092  SP3CM IQ4JO JN63
181915  +9  769  SP3CM DL6EL JN57
181930  +1  769  DL6EL SP3CM +12
181945 +12  769  SP3CM DL6EL R+00
182000  +2  769  DL6EL SP3CM RR73
182015  +5  769  SP3CM DL6EL 73
182030  +0 2090  IQ4JO SP3CM +00 (x6)
40m 
UTC    dB Audio  Message
155700  -8 2233  S57CT SP3CM +07 (x2)
155745  +8  621  SP3CM S57CT R+01
181715  +2 1295  SP3CM YO4GIY -15 (x2)
171900 -18 1812  SV2ROG SP3CM JO82 (x2)
171945 -12 1810  SP3CM SV2ROG -08 (x2)
163245  -4 1972  SP3CM IQ4JO JN63
163345 -19 2072  SP3CM PA0MUS JO22
165215 -13  384  SP3CM PD2MAC +02 (x4)
10m 
UTC    dB Audio  Message
150115  -2  716  SP3CM CR7BRV IM58 (x4)
20m 
UTC    dB Audio  Message
182345  +6 2206  SP3CM 9A5E -19 (x4)

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

No CW receptions recorded for this callsign in the last 30 days.

Explore CW reception at SO8OO

FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee