SP5DJ — 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: KO02

Receiver-side FT8 activity involving SP5DJ, decoded by SO8OO in southeastern Poland. 790 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 9 UTC dates in the available aggregate history. Observed between 2026-06-12 and 2026-10-02.

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 790 FT8 messages attributed to SP5DJ as the transmitting token by decoded message structure across 9 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (54%), followed by 40 m (46%) and 20 m (0%). Most decodes (67%) fell within the six-hour window 15:00-21:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -3.6 dB.

Overview

790
Messages attributed
9
UTC dates decoded
64
Active 15-min windows
-3.6 dB
Estimated median S/N

Bands

80m · 428 40m · 361 20m · 1
First attributed message: 2026-06-12
Last attributed message: 2026-10-02 16:13 UTC

Observed FT8 message patterns

Attributed sample
790 messages
Active dates
9 UTC dates
Estimated median S/N
-3.6 dB
Estimated 10th-90th percentile
-20.5 to +9 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 249, moderate (-15 to -9 dB) 103, strong (≥ -8 dB) 438.

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 SP5DJ 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 SP5DJ

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
KO02 · 533 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
290 km (approx.)
Last such locator decoded
2026-10-02 16:13 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 UTCBandSP5DJ S/NCounterpartCounterpart S/NMsgsCapture
10-02 15:52 40m -12 / - R3ZBH -1 / - 2 ✓ Closing observed
10-02 15:49 40m - / -10 DL6FCK -7 / - 2 Partial capture
10-02 15:40 40m -10 / -5 DL9PN -2 / +2 5 ✓ Full exchange observed
10-02 15:36 40m - / -6 OH5KNL +12 / - 2 ✓ Closing fragment
10-02 15:33 40m -12 / - UW2ZO -1 / +6 3 Partial capture
10-02 15:31 40m -12 / -4 DL7UKM -2 / - 5 ✓ Full exchange observed
10-02 15:29 40m -11 / -7 M1DBB -12 / +5 3 ✓ Full exchange observed
10-02 15:28 40m -10 / - IN3IZQ -8 / - 2 ✓ Closing observed
10-02 15:22 40m -6 / -16 SQ4KBF -10 / +8 2 Partial capture
10-02 15:17 40m -17 / - PD5URK - / - 4 Partial capture
10-01 16:18 40m - / -12 SP4MPH +3 / - 3 ✓ Closing fragment
10-01 16:11 40m -22 / - F5PZT -13 / -8 3 ✓ Closing observed
10-01 16:06 40m -19 / - F4JYH - / -16 3 Partial capture
10-01 15:56 40m -19 / - UB3ZKO -12 / -4 2 Partial capture
10-01 15:54 40m -20 / - F5NQW -18 / - 3 ✓ Closing observed
10-01 15:38 40m -16 / -8 DL8TV +2 / - 4 ✓ Full exchange observed
10-01 15:34 40m -16 / -15 SP9EVL +5 / - 5 ✓ Full exchange observed
10-01 15:28 40m -14 / -25 DL3BH -8 / -1 6 ✓ Full exchange observed
10-01 15:27 40m - / -6 YL3GAO 0 / - 3 ✓ Closing fragment
10-01 15:27 40m - / - IT9SVJ -8 / - 4 Partial capture
10-01 15:23 40m - / -12 UR5RNH -4 / - 3 ✓ Closing fragment
10-01 15:21 40m - / -12 YO8RAW +1 / - 3 ✓ Closing fragment
10-01 15:15 40m -18 / -20 R7OV -9 / - 4 ✓ Closing observed
10-01 15:13 40m - / +2 SP8AJC +1 / - 2 ✓ Closing fragment
10-01 14:59 40m -12 / -11 OE6PVG -2 / +10 4 ✓ Full exchange observed
10-01 14:57 40m -13 / +8 OH3CD -12 / - 4 ✓ Closing observed
10-01 14:32 40m -18 / -6 DK8EW -10 / - 5 ✓ Full exchange observed
10-01 14:28 40m - / 0 DL6MRS +11 / - 3 ✓ Closing fragment
10-01 14:07 40m -19 / -3 DL3LBK -17 / - 7 ✓ Closing observed
10-01 14:06 40m -16 / - SM5MEK -14 / - 2 ✓ Closing observed
10-01 13:56 40m -20 / - DL6UXL - / 0 2 ✓ Closing fragment
10-01 13:53 40m - / -19 PA8DC -18 / - 2 Partial capture
10-01 13:51 40m -22 / -18 F5KEE -15 / - 4 ✓ Closing observed
10-01 13:46 40m -18 / - PD3JW - / -14 6 Partial capture
10-01 13:41 40m -20 / -17 PI4TX -19 / -3 2 Partial capture
09-30 15:54 40m - / -21 I2BPP -12 / - 5 ✓ Closing fragment
09-30 15:40 40m -14 / - PD0HSK -21 / 0 3 ✓ Closing observed
09-30 15:38 40m -18 / - DL1THB - / +3 2 ✓ Closing fragment
09-30 15:30 40m -19 / - PA1JOZ - / +5 3 Partial capture
09-30 15:21 40m -19 / - DL3ZAT -10 / 0 5 ✓ Closing observed
09-30 15:05 40m -12 / -2 YL3AKH -8 / - 4 ✓ Full exchange observed
09-30 14:58 40m -19 / -10 DL6EL +4 / - 6 ✓ Closing observed
09-30 14:36 40m -20 / - SP3CUG -10 / - 3 ✓ Closing observed
09-30 14:34 40m -16 / -9 DL3FSC -3 / - 5 ✓ Closing observed
09-30 14:30 40m -19 / - G4MHJ - / -11 2 Partial capture
09-30 14:20 40m - / -12 UA3GDJ -8 / - 3 ✓ Closing fragment
09-30 14:07 40m -24 / +4 IU3VQV -11 / -5 4 ✓ Full exchange observed
09-30 14:01 40m -22 / -7 DL1ASL -18 / -1 4 ✓ Full exchange observed
09-30 13:54 40m - / - DL1ASL -16 / - 2 Partial capture
09-30 13:53 40m - / 0 UT7AXA -11 / - 3 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
155230 -12 2559  R3ZBH SP5DJ RR73
155245  -1 2559  SP5DJ R3ZBH 73
155930 -10 2559  CQ SP5DJ KO02 (x13)
80m 
UTC    dB Audio  Message
054115  +7  861  CQ SP5DJ KO02
054130  -3  863  SP5DJ OK1UA JN79
054145  +6  861  OK1UA SP5DJ +02
054200  +0  863  SP5DJ OK1UA R-16
054215  +7  861  OK1UA SP5DJ RR73
054230  -2  862  SP5DJ OK1UA 73
054545  +8  860  CQ SP5DJ KO02 (x3)
054700  +7 1780  SP5DJ SP9MRP JO90
054715  +8  861  SP9MRP SP5DJ +08
054730  +5 1779  SP5DJ SP9MRP R+10
054745 +11  860  SP9MRP SP5DJ RR73
054800  +4 1780  SP5DJ SP9MRP 73
054845  +9  860  CQ SP5DJ KO02
20m 
UTC    dB Audio  Message
142400  -7 1617  SP5DJ CT1BFP R+05 (x2)
142900  +2 1214  SP5DJ M8JYD IO81
142930 -12 2712  SP5DJ IW5ALZ JN53
064330 -16 1982  SP5DJ PD0PWH JO21 (x2)
064730 +13 2777  SP5DJ F1PBZ -06 (x2)
065230  -9 1805  SP5DJ UR3QKC R-24
065930 -10 1982  SP5DJ DL6AZ JO42 (x3)
100500 -17 1068  SP5DJ DK6WS -08 (x3)

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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