SP5CJY — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Poland Most frequent locator attributed to this token: KO02

Receiver-side FT8 activity involving SP5CJY, decoded by SO8OO in southeastern Poland. 116 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, across 6 UTC dates in the available aggregate history. Observed between 2026-07-12 and 2026-08-30.

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 116 FT8 messages attributed to SP5CJY as the transmitting token by decoded message structure across 6 UTC dates in the available aggregate history. The largest monitored-band total was 160 m (52%), followed by 40 m (34%) and 80 m (12%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (82%); the estimated median was -1 dB.

Overview

116
Messages attributed
6
UTC dates decoded
14
Active 15-min windows
-1 dB
Estimated median S/N

Bands

160m · 60 80m · 14 60m · 2 40m · 40
First attributed message: 2026-07-12
Last attributed message: 2026-08-30 19:01 UTC

Observed FT8 message patterns

Attributed sample
116 messages
Active dates
6 UTC dates
Estimated median S/N
-1 dB
Estimated 10th-90th percentile
-11 to +8 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 3, moderate (-15 to -9 dB) 18, strong (≥ -8 dB) 95.

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 SP5CJY 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 SP5CJY

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 · 39 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
290 km (approx.)
Last such locator decoded
2026-08-30 18:59 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 UTCBandSP5CJY S/NCounterpartCounterpart S/NMsgsCapture
09-05 21:00 40m - / -15 DL3MIB +10 / - 3 ✓ Closing fragment
09-05 20:59 40m - / -11 EX7CQ 0 / - 2 ✓ Closing fragment
08-30 18:59 40m -3 / - V51WH - / -14 5 ✓ Closing fragment
08-30 18:51 80m +11 / - A41CK - / -19 6 ✓ Closing fragment
08-30 18:48 80m +5 / - HB0WR - / +1 3 ✓ Closing fragment
08-22 21:05 160m -6 / - PE1K - / -18 2 ✓ Closing fragment
08-22 21:03 160m +4 / -10 DM8ET -22 / -17 4 ✓ Full exchange observed
08-22 21:02 160m 0 / +1 UX5UO 0 / -8 5 ✓ Full exchange observed
08-22 21:01 160m -2 / - DO2TF - / -19 2 ✓ Closing fragment
08-22 20:57 160m -1 / - DP6K +11 / -4 4 Partial capture
08-22 20:57 160m 0 / -29 R3PA -16 / -13 8 ✓ Full exchange observed
08-22 20:53 160m +2 / -7 DL2AMM -16 / -14 8 ✓ Full exchange observed
08-22 20:51 160m +2 / -4 IZ3GOG -8 / -24 5 ✓ Full exchange observed
08-22 20:47 160m +4 / - DL2AMM -22 / -24 3 Partial capture
08-22 20:47 160m +2 / - G8OO - / -23 2 ✓ Closing fragment
08-22 20:47 160m +2 / - OM2WQ +15 / +5 6 ✓ Full exchange observed
08-22 20:45 160m +5 / -3 PA3FR -4 / -7 5 ✓ Full exchange observed
08-22 20:44 160m +2 / +4 UA3FH -20 / -3 4 ✓ Full exchange observed
08-22 20:41 160m -2 / - LB7ZG - / -11 2 ✓ Closing fragment
08-22 20:40 160m +2 / -1 DL9KM -17 / -24 5 ✓ Full exchange observed
08-22 20:39 160m 0 / - SP5GW 0 / +5 4 ✓ Full exchange observed
08-22 20:37 160m +1 / - ER3UA -7 / -11 3 ✓ Closing observed
08-22 20:36 160m -2 / +4 IU4PQN -15 / -16 5 ✓ Full exchange observed
08-22 20:35 160m +2 / +5 ES8JX -17 / +3 5 ✓ Full exchange observed
08-22 20:34 160m +6 / +6 HA7TM +19 / +8 5 ✓ Full exchange observed
08-22 20:28 40m -5 / 0 T77R -3 / +1 5 ✓ Full exchange observed
08-20 20:41 40m -8 / - EA5HM -8 / +1 8 Partial capture
08-20 20:40 40m -10 / +7 OK2VCR +8 / - 7 ✓ Closing observed
07-23 19:51 40m - / - OZ1CM -12 / - 2 ✓ Closing fragment
07-20 20:22 80m - / - OK2UPG +16 / - 2 Partial capture
07-20 20:21 80m +15 / +4 UA4FKT +9 / - 5 ✓ Full exchange observed
07-20 20:20 80m +17 / -2 HB9EFK +10 / - 5 ✓ Full exchange observed
07-20 20:04 60m -16 / - DD6ZV -14 / +9 3 Partial capture
07-20 20:00 40m -6 / - SP6FME -11 / +1 3 ✓ Closing observed
07-20 19:59 40m -12 / - EW8DG - / -12 3 ✓ Closing fragment
07-20 19:56 40m - / -10 SV9QWC -10 / - 2 ✓ Closing fragment
07-20 19:54 40m -16 / - S21SDR - / -24 2 Partial capture
07-15 20:23 40m - / +9 II3DRC -14 / - 2 ✓ Closing fragment
07-15 20:01 40m -4 / - 4S7AB - / -17 2 ✓ Closing fragment
07-12 21:10 40m -10 / - Z81D - / - 2 Partial capture
07-12 21:04 40m -2 / - 9V1DX - / - 4 Partial capture
07-12 21:01 40m -9 / - Z81D - / -17 5 Partial capture
07-12 21:00 40m -6 / - D2UY - / -8 2 ✓ Closing fragment
07-12 20:53 40m -5 / - D2UY - / - 4 Partial capture
07-11 20:35 40m - / -2 PE1NPS -12 / - 2 Partial capture
07-11 20:08 40m - / -3 IQ4JO -3 / - 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
202845  -6  787  T77R SP5CJY KO02 (x2)
203000  -4 1739  SP5CJY T77R R+00
203015  -3  787  T77R SP5CJY RR73
203030  -2 1739  SP5CJY T77R 73
185930  -2 1594  V51WH SP5CJY KO02 (x5)
205900  +2 1338  SP5CJY EX7CQ -11 (x2)
210000 +13 1070  SP5CJY DL3MIB JN57 (x3)
80m 
UTC    dB Audio  Message
202200 +12  900  UA4FKT SP5CJY +11
202215  +7  900  SP5CJY UA4FKT R+04
202230 +18  900  UA4FKT SP5CJY RR73
202245  +9  900  SP5CJY UA4FKT 73
202245 +14  737  SP5CJY OK2UPG JN99 (x2)
184800  +4 1357  HB0WR SP5CJY KO02 (x3)
185115 +18 1357  A41CK SP5CJY KO02 (x6)
160m 
UTC    dB Audio  Message
210115  -5  997  DO2TF SP5CJY -19 (x2)
210215 -12  997  CQ SP5CJY KO02
210230  +2 1520  SP5CJY UX5UO KO50
210245  +3  997  UX5UO SP5CJY -08
210300  -1 1520  SP5CJY UX5UO R+01
210315  -3  997  UX5UO SP5CJY RR73
210330  -1 1520  SP5CJY UX5UO 73
210330 -21 1796  SP5CJY DM8ET -10
210345  +2  997  DM8ET SP5CJY R-17
210400 -22 1796  SP5CJY DM8ET RR73
210415  +5  997  DM8ET SP5CJY 73
210445  +8  997  CQ SP5CJY KO02
210515  -3  997  PE1K SP5CJY -18 (x2)
60m 
UTC    dB Audio  Message
200430 -17  929  CQ SP5CJY KO02                        a1
200445 -14  929  SP5CJY DD6ZV JO62
200500 -16  929  DD6ZV SP5CJY +09
200515 -14  929  SP5CJY DD6ZV R+13

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.

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