SP3DOF — 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: JO72

Receiver-side FT8 activity involving SP3DOF, decoded by SO8OO in southeastern Poland. 5,480 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, 10m, across 75 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-10-22.

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 5,480 FT8 messages attributed to SP3DOF as the transmitting token by decoded message structure across 75 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (56%), followed by 40 m (25%) and 80 m (19%). Most decodes (81%) fell within the six-hour window 04:00-10:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -6.8 dB.

Overview

5,480
Messages attributed
75
UTC dates decoded
397
Active 15-min windows
-6.8 dB
Estimated median S/N

Bands

First attributed message: 2026-06-07
Last attributed message: 2026-10-22 07:54 UTC

Observed FT8 message patterns

Attributed sample
5,480 messages
Active dates
75 UTC dates
Estimated median S/N
-6.8 dB
Estimated 10th-90th percentile
-16.7 to +3 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 676, moderate (-15 to -9 dB) 1,540, strong (≥ -8 dB) 3,264.

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.

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 SP3DOF

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
JO72 · 3,394 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
552 km (approx.)
Last such locator decoded
2026-10-22 07:54 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 UTCBandSP3DOF S/NCounterpartCounterpart S/NMsgsCapture
10-22 07:52 80m +2 / - DL9FA -19 / -3 4 ✓ Full exchange observed
10-22 07:47 80m - / - PA4AV -18 / - 6 Partial capture
10-22 07:09 80m 0 / +3 OK2CNI +5 / +1 5 ✓ Full exchange observed
10-22 05:19 80m - / +3 DA6DN +4 / - 2 Partial capture
10-22 04:22 80m - / - F1PSX -9 / - 2 Partial capture
10-22 04:18 80m - / - F1PSX -6 / - 2 Partial capture
10-20 04:21 40m - / - M9XPN -18 / - 2 Partial capture
10-20 04:21 40m - / - RW3DDZ -8 / - 4 Partial capture
10-20 03:29 40m - / -12 F1PBZ +2 / - 2 ✓ Closing fragment
10-16 03:41 40m -19 / - F1DHX - / +4 2 Partial capture
10-15 04:17 40m -18 / - HB9TIH - / +3 3 Partial capture
10-15 04:10 40m -19 / - HB9TIH - / +3 3 Partial capture
10-14 03:38 80m +10 / -5 ON3MOH/P -6 / -7 4 ✓ Full exchange observed
10-12 03:31 80m -1 / -16 ON4MAP -17 / -16 9 ✓ Full exchange observed
10-12 03:29 80m - / - G3TKT -18 / - 3 Partial capture
10-12 03:28 80m -1 / +4 IZ8XXE +3 / 0 4 ✓ Full exchange observed
10-12 03:24 80m -5 / +1 T77RN 0 / -7 7 ✓ Full exchange observed
10-12 03:23 80m +2 / -10 9A5JU +14 / -2 4 ✓ Full exchange observed
10-12 03:18 80m -1 / - EA5JK - / +2 9 Partial capture
10-12 03:17 80m -2 / - 9H6C -15 / -17 4 ✓ Full exchange observed
10-11 04:24 40m -21 / - HA5AQ - / +5 3 ✓ Closing fragment
10-11 03:56 40m - / -9 SV5BYP -10 / - 2 ✓ Closing fragment
10-10 03:38 40m - / +9 F8VNU -6 / - 2 ✓ Closing fragment
10-09 04:03 40m - / -13 TA2VUZ -9 / - 2 ✓ Closing fragment
10-09 03:19 40m - / -17 HK3X -16 / - 2 ✓ Closing fragment
10-08 22:17 60m - / - EA1IOK -3 / - 4 Partial capture
10-08 22:17 60m - / - F6FHZ -12 / - 2 Partial capture
10-08 12:33 40m -19 / -3 OE1TKS +2 / +8 5 ✓ Full exchange observed
10-08 12:31 40m -16 / - G8TJQ - / -5 3 Partial capture
10-08 12:29 40m -15 / - G3VCQ - / -10 3 ✓ Closing fragment
10-08 03:49 40m - / -16 HJ6UMR -1 / - 2 Partial capture
10-07 04:28 80m -6 / - N0BUZ - / -12 4 Partial capture
10-07 04:24 80m +1 / - TK1CX - / 0 7 Partial capture
10-07 04:20 80m -1 / - N0BUZ - / -9 7 Partial capture
10-07 04:19 80m 0 / -12 G6PWS -9 / -3 5 ✓ Full exchange observed
10-07 04:19 80m -11 / -13 GU4WRP -7 / - 2 ✓ Closing observed
10-07 04:11 80m - / +2 LY5A +11 / - 2 ✓ Closing fragment
10-07 04:03 80m +6 / - 9A4ZM - / +6 15 Partial capture
10-06 04:46 40m - / -18 UT8IIV -13 / - 3 ✓ Closing fragment
10-06 04:43 40m - / -11 EA5FD -4 / - 2 ✓ Closing fragment
10-06 04:21 40m - / -11 F4NQP -22 / - 2 Partial capture
10-06 03:35 40m - / - OH2TD -16 / - 2 ✓ Closing fragment
10-06 03:32 40m - / -5 DJ2PW -5 / - 3 ✓ Closing fragment
10-04 03:36 40m - / +8 TA3NK -3 / - 3 ✓ Closing fragment
10-03 06:44 40m - / -4 SQ8CTR -16 / - 2 ✓ Closing fragment
10-03 06:37 40m -10 / -7 YT2TW -12 / -8 5 ✓ Full exchange observed
10-03 06:35 40m -8 / - SP6SPK - / -5 2 ✓ Closing fragment
10-03 06:28 40m -10 / - SQ2EEJ - / -5 2 ✓ Closing fragment
10-03 06:24 40m -8 / -12 I4BUQ -6 / -4 5 ✓ Full exchange observed
10-03 06:20 40m -8 / -5 PD0TV -16 / -5 4 ✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

80m
UTC    dB Audio  Message
074945  -5 1507  CQ SP3DOF JO72 (x2)
075030 -22 1508  SP3DOF PA4AV JO21
075045  -2 1507  CQ SP3DOF JO72
075100 -21 1507  SP3DOF PA4AV JO21
075115  -5 1507  CQ SP3DOF JO72 (x2)
075215  +4 1507  DL9FA SP3DOF -03
075230 -18 2122  SP3DOF DL9FA R+15
075245  +1 1507  DL9FA SP3DOF RR73
075300 -20 2121  SP3DOF DL9FA 73
075315  +5 1507  CQ SP3DOF JO72 (x4)
40m
UTC    dB Audio  Message
042230 -15 1644  CQ SP3DOF JO72 (x3)
032730 -20 1502  TA2EE SP3DOF -13
034115 -19 1501  F1DHX SP3DOF +04 (x2)
032945  +5 2690  SP3DOF F1PBZ -12 (x2)
040500  +6  497  SP3DOF RR73; ON8BZ <...> +02
042115  -7 2257  SP3DOF RW3DDZ KO86
042115 -17 1416  SP3DOF M9XPN IO91
042145  -6 2256  SP3DOF RW3DDZ KO86
042145 -20 1416  SP3DOF M9XPN IO91
042215 -11 2257  SP3DOF RW3DDZ KO86 (x2)
10m
UTC    dB Audio  Message
142730 -15 1644  SP3DOF F1SAA JN25 (x4)
131700 -18 1188  SP3DOF CX1TF 73
60m
UTC    dB Audio  Message
040700  -9 2023  SP3DOF G8OO R-16 (x8)
221700 -13  856  SP3DOF F6FHZ JN18
221700  -2  670  SP3DOF EA1IOK IN62 (x2)
221800 -12  856  SP3DOF F6FHZ JN18
221800  -1  670  SP3DOF EA1IOK IN62 (x2)
001215  -6  965  9T0MD SP3DOF JO72
20m
UTC    dB Audio  Message
162030 -21 1564  SP3DOF BG5BAA R-07 (x2)
162115  +4 1904  CQ SP3DOF JO72 (x4)
162415 +10 1904  UW5ESX SP3DOF +04 (x5)
162645  +2 1904  CQ SP3DOF JO72
162715  +1 1904  UW5ESX SP3DOF -01
163115 -13 1756  HB9TIH SP3DOF +04 (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

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

Explore CW reception at SO8OO

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