SP4NDY — 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: KO04

Receiver-side FT8 activity involving SP4NDY, decoded by SO8OO in southeastern Poland. 1,315 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, across 73 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-11-04.

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 1,315 FT8 messages attributed to SP4NDY as the transmitting token by decoded message structure across 73 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (63%), followed by 60 m (18%) and 40 m (18%). Most decodes (93%) fell within the six-hour window 17:00-23:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (90%); the estimated median was +9.7 dB.

Overview

1,315
Messages attributed
73
UTC dates decoded
196
Active 15-min windows
+9.7 dB
Estimated median S/N

Bands

First attributed message: 2026-06-06
Last attributed message: 2026-11-04 22:46 UTC

Observed FT8 message patterns

Attributed sample
1,315 messages
Active dates
73 UTC dates
Estimated median S/N
+9.7 dB
Estimated 10th-90th percentile
-8.1 to +19 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 47, moderate (-15 to -9 dB) 81, strong (≥ -8 dB) 1,187.

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 SP4NDY

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
KO04 · 687 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
510 km (approx.)
Last such locator decoded
2026-11-04 22:43 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 UTCBandSP4NDY S/NCounterpartCounterpart S/NMsgsCapture
11-04 22:45 80m +6 / +7 DO1OAS -4 / 0 4 ✓ Full exchange observed
11-04 22:43 80m +4 / - IQ4JO +10 / - 2 Partial capture
11-04 22:43 80m +10 / -6 S50XX +10 / +9 7 ✓ Full exchange observed
11-04 22:42 80m +14 / - TJ1GD - / -23 2 Partial capture
11-04 22:37 80m +12 / - W4/AH6FX - / - 2 Partial capture
11-04 16:53 80m 0 / - KH8A - / - 3 Partial capture
11-03 22:39 60m -12 / - K1JX - / -19 2 Partial capture
11-03 22:36 60m -21 / -5 HB9TLL -7 / -3 4 ✓ Full exchange observed
11-03 22:34 60m - / -10 Z30A -8 / - 2 ✓ Closing fragment
11-03 19:00 80m +11 / - R8XF/P - / +6 2 Partial capture
11-03 18:55 80m +12 / - JA9PPC -14 / -22 6 ✓ Closing observed
11-02 02:08 80m +7 / - W1JGM - / - 2 Partial capture
11-02 02:02 80m +15 / - YU65AEC - / - 3 Partial capture
11-02 02:00 80m +16 / - 6W/IK2HKT - / - 3 Partial capture
11-02 01:50 80m +20 / - 6W/IK2HKT - / - 2 Partial capture
11-02 01:48 80m +16 / - SM/R1CR - / - 2 Partial capture
11-02 01:46 80m +18 / - RU4CK/P - / - 2 Partial capture
11-01 22:56 60m -9 / - AO40EUDXF - / -11 2 Partial capture
11-01 22:20 80m +10 / - BA5AN - / -18 2 Partial capture
11-01 22:17 80m +13 / - YP40CSM - / -1 3 Partial capture
11-01 22:12 80m +14 / -1 OZ7DR -8 / +2 4 ✓ Full exchange observed
11-01 22:08 80m +10 / - OS4K - / -22 2 ✓ Closing fragment
11-01 22:07 80m +14 / -9 G3TKT -20 / -14 4 ✓ Full exchange observed
11-01 22:05 80m +12 / -7 OD5VB -8 / -8 6 ✓ Full exchange observed
11-01 22:04 80m +9 / +4 HG0NPJ -2 / -2 5 ✓ Full exchange observed
11-01 22:02 80m +8 / - F5MXH -2 / -11 2 Partial capture
11-01 22:01 80m +10 / - BH4GUU - / -19 2 ✓ Closing fragment
11-01 22:00 80m +14 / - SP9KW - / -5 2 Partial capture
11-01 21:58 80m +10 / - EY7BP - / -10 3 ✓ Closing fragment
11-01 19:07 80m +12 / - R3XDT - / -14 2 Partial capture
11-01 19:05 80m +12 / -7 HF5A +1 / +6 6 ✓ Full exchange observed
11-01 19:04 80m +12 / -5 SV1EKI -11 / -13 5 ✓ Full exchange observed
11-01 18:46 60m -9 / -5 EA3KZ -10 / -1 5 ✓ Full exchange observed
11-01 18:44 60m -6 / +10 OE8PIT +19 / - 6 ✓ Full exchange observed
11-01 18:41 60m -8 / - F1MGE 0 / +4 5 ✓ Full exchange observed
11-01 18:38 60m -14 / - EA7CI - / - 2 Partial capture
10-31 15:49 40m +5 / - UA9LLE - / -19 3 ✓ Closing fragment
10-31 15:42 40m 0 / - DL8UG - / -19 2 ✓ Closing fragment
10-31 15:42 40m +3 / -13 OH1TEV -4 / +3 11 ✓ Full exchange observed
10-31 15:41 40m +3 / -9 RA8CO -8 / +3 5 ✓ Full exchange observed
10-31 15:36 60m +6 / +2 DH7TS -2 / +6 5 ✓ Full exchange observed
10-31 15:33 60m +4 / +1 DK1XAM -5 / +3 5 ✓ Full exchange observed
10-31 15:32 60m +8 / +2 DC6MY +1 / 0 5 ✓ Full exchange observed
10-31 15:30 60m +8 / - SQ4PKO -16 / - 5 ✓ Closing observed
10-31 15:29 60m +7 / - DL6EBC - / -11 3 ✓ Closing fragment
10-31 15:27 60m +6 / - OI6C -8 / - 5 ✓ Full exchange observed
10-31 15:25 60m +8 / +8 DK0HB -12 / +3 4 ✓ Full exchange observed
10-31 15:24 60m +6 / - DL1LP -4 / - 5 ✓ Full exchange observed
10-31 15:22 60m +6 / +8 DL2DBH -6 / -1 5 ✓ Full exchange observed
10-30 22:54 80m +5 / - 5B4AMM - / - 3 Partial capture

Recent FT8 messages decoded at SO8OO

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

80m
UTC    dB Audio  Message
224315 +13 2466  CQ SP4NDY KO04
224330 +18 2466  SP4NDY S50XX JN65
224330  +2 1734  SP4NDY RJ3DC KO95
224330 +10 2215  SP4NDY IQ4JO JN63
224400 +11 2466  SP4NDY S50XX JN65
224415  +4 2380  IQ4JO SP4NDY +11
224430  +7 2466  SP4NDY S50XX JN65
224445  +9 2381  S50XX SP4NDY +09
224500  +5 2466  SP4NDY S50XX R-06
224515 +11 2380  S50XX SP4NDY RR73
224530  +9 2466  SP4NDY S50XX 73
224545  +8 2380  DO1OAS SP4NDY +00
224600  -3 2467  SP4NDY DO1OAS R+07
224615  +3 2380  DO1OAS SP4NDY RR73
224630  -6 2467  SP4NDY DO1OAS 73
40m
UTC    dB Audio  Message
154300  +4 2977  DL8UG SP4NDY RR73
154315  -2 2738  SP4NDY OH1TEV KP20
154330  +1 2977  OH1TEV SP4NDY +03 (x2)
154415  -1 2738  SP4NDY OH1TEV R-13
154430  +1 2977  OH1TEV SP4NDY RR73 (x2)
154615  -8 2737  SP4NDY OH1TEV R-13
154630  +7 2977  OH1TEV SP4NDY RR73
154645  -8 2738  SP4NDY OH1TEV 73
154915  +6 2977  UA9LLE SP4NDY KO04 (x3)
155045  +5 2977  UA8CFJ SP4NDY KO04
225400  +2  742  SP4NDY 3A2LF RR73
60m
UTC    dB Audio  Message
184745 -12  558  EA3KZ SP4NDY R-01
184800  -9 1633  SP4NDY EA3KZ RRR
184815  -9  557  EA3KZ SP4NDY 73
225145 -11 2199  6W/IK2HKT SP4NDY KO04
225615  -9 2461  AO40EUDXF SP4NDY R-11 (x2)
223400  -4  785  SP4NDY Z30A -10 (x2)
223600  -7 1145  SP4NDY HB9TLL -05
223615 -21 1308  HB9TLL SP4NDY R-03
223630  -8 1145  SP4NDY HB9TLL RR73 (x2)
223930 -17 1289  K1JX SP4NDY KO04 (x2)
224330  -3 1290  G8OCV SP4NDY KO04
10m
UTC    dB Audio  Message
205415  -4 2427  SP4NDY DF7EF JO30
205445  -9 2488  SP4NDY DN9OPA JN38
205445  -8 2427  SP4NDY DF7EF R-04
205515 -10 2488  SP4NDY DN9OPA JN38
205515  -9 2428  SP4NDY DF7EF 73
205545  -6 2488  SP4NDY DN9OPA JN38 (x6)
082915  +1 2527  SP4NDY IU2IKT +02 (x2)
110615 -24 1597  SP4NDY CR7BUW IM58 (x2)
20m
UTC    dB Audio  Message
215215 -19 2184  SP4NDY YV5WL -17
215815 -10  571  SP4NDY KB1FJC -07 (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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