OK1CYC — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Czech Republic Most frequent locator attributed to this token: JN79

Receiver-side FT8 activity involving OK1CYC, decoded by SO8OO in southeastern Poland. 545 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 18 UTC dates in the available aggregate history. Observed between 2026-06-11 and 2026-09-06.

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 545 FT8 messages attributed to OK1CYC as the transmitting token by decoded message structure across 18 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (84%), followed by 40 m (15%) and 80 m (1%). Most decodes (55%) fell within the six-hour window 16:00-22:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -11 dB.

Overview

545
Messages attributed
18
UTC dates decoded
82
Active 15-min windows
-11 dB
Estimated median S/N

Bands

80m · 5 40m · 82 20m · 458
First attributed message: 2026-06-11
Last attributed message: 2026-09-06 18:48 UTC

Observed FT8 message patterns

Attributed sample
545 messages
Active dates
18 UTC dates
Estimated median S/N
-11 dB
Estimated 10th-90th percentile
-20 to -3 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 163, moderate (-15 to -9 dB) 187, strong (≥ -8 dB) 195.

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 OK1CYC 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 OK1CYC

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
JN79 · 394 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
491 km (approx.)
Last such locator decoded
2026-09-06 18:44 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 UTCBandOK1CYC S/NCounterpartCounterpart S/NMsgsCapture
09-06 18:47 40m -2 / +2 UA3RBM -10 / -9 4 ✓ Full exchange observed
09-06 18:41 40m -3 / -11 4X1UF -6 / - 3 ✓ Closing observed
09-06 18:38 40m -8 / -6 R1BQW -10 / 0 2 Partial capture
09-06 18:35 40m -4 / - R1CF - / - 2 ✓ Closing fragment
08-29 05:34 40m -10 / - RA3ZOM - / - 4 Partial capture
08-29 05:28 40m -6 / - WV5A - / - 2 Partial capture
08-27 20:54 40m -10 / - AO5FSB - / +4 2 Partial capture
08-27 20:51 40m -12 / - JQ3DUE - / - 2 Partial capture
08-27 20:46 40m -12 / -19 JA5MHD +2 / -10 6 ✓ Full exchange observed
08-27 20:44 40m -15 / -2 DL3BH -14 / +5 5 ✓ Full exchange observed
08-27 20:43 40m -15 / +1 DL6RS +2 / - 4 ✓ Closing observed
08-27 20:41 40m -14 / -3 DL1EDR -1 / +9 5 ✓ Full exchange observed
08-27 20:39 40m - / 0 OZ5AGJ -8 / - 2 ✓ Closing fragment
08-27 20:38 40m -15 / -8 UW5IM +13 / - 6 ✓ Closing observed
08-27 20:37 40m -6 / - AO5FSB - / - 2 Partial capture
08-27 20:35 40m -4 / - UI6O - / - 2 Partial capture
08-27 20:33 40m -3 / - AO5FSB - / - 3 Partial capture
08-27 20:30 40m -4 / - OV5SP -18 / -12 4 ✓ Closing observed
08-27 20:28 40m -10 / - SV1EKI -4 / -6 3 ✓ Closing observed
08-27 20:26 40m -2 / - F1PBZ +1 / +1 3 ✓ Closing observed
08-27 20:24 40m -6 / - OM3PR +6 / -8 4 ✓ Closing observed
08-27 20:23 40m -5 / +4 DL5FCE -6 / +8 4 ✓ Full exchange observed
08-27 20:21 40m -6 / - RU3NCW - / - 2 Partial capture
08-27 20:20 40m -9 / - JA6VQA - / - 2 Partial capture
07-11 03:18 20m -8 / - W7YA - / - 3 Partial capture
07-10 20:47 20m - / +1 T77RN -10 / - 4 ✓ Closing fragment
07-10 19:41 20m -12 / -12 JA4FKX -12 / -3 4 ✓ Full exchange observed
07-10 19:37 20m -10 / - KF2E - / - 5 Partial capture
07-10 19:32 20m -6 / - KF2E - / - 3 Partial capture
07-10 19:26 20m -5 / - KF2E - / - 5 Partial capture
07-10 19:16 20m -3 / - RY7KV - / -13 11 ✓ Closing fragment
07-10 18:55 20m -3 / - <...> - / -8 3 Partial capture
07-10 18:51 20m -1 / - S09S - / - 2 ✓ Closing fragment
07-10 18:46 20m -14 / - Z62NS - / - 4 Partial capture
07-10 18:29 20m -9 / - YI1SAL - / - 13 Partial capture
07-10 18:28 20m -13 / - YH1AA - / -11 3 ✓ Closing fragment
07-08 21:11 40m -12 / - BD8ENU - / - 2 Partial capture
07-08 20:52 40m - / -9 F5PBG -14 / - 4 ✓ Closing fragment
07-08 20:30 40m -19 / - <...> - / - 3 Partial capture
07-08 20:28 40m -21 / - YC2ERJ - / - 2 Partial capture
07-08 20:25 40m -18 / - <...> - / - 3 Partial capture
07-08 20:23 40m -24 / - R9AL - / -2 2 ✓ Closing fragment
07-08 18:01 20m - / -13 JA4TKY -9 / - 2 ✓ Closing fragment
07-08 17:35 20m -8 / - BH3CFN - / - 32 Partial capture
07-08 17:17 20m -7 / - YB2CLC - / - 6 Partial capture
07-08 16:51 20m -18 / - K4ZZR - / - 2 Partial capture
07-08 16:36 20m -22 / - HZ1KS - / - 3 Partial capture
07-08 16:32 20m - / -11 R9FFT -14 / - 2 ✓ Closing fragment
07-08 16:20 20m -19 / - <...> - / +5 6 Partial capture
07-08 16:13 20m -19 / - IT9GJK/P - / -16 9 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
183530  -5 2045  R1CF OK1CYC JN79 (x2)
183715  -4 2317  OK1CYC G4DBW JO01
183830 -10 2125  OK1CYC R1BQW -06
183845  -8 2045  R1BQW OK1CYC R+00
183945  -1 2045  <Z335MK> OK1CYC JN79
184115  -3 2045  4X1UF OK1CYC JN79
184130  -5  228  OK1CYC 4X1UF -11 (x2)
184245  -7 2045  9H4JX OK1CYC JN79
184430  -2 2045  EG2PDA OK1CYC JN79
184745 -11 1610  OK1CYC UA3RBM +02
184800  -4 2046  UA3RBM OK1CYC R-09
184815  -8 1609  OK1CYC UA3RBM RR73
184830  -1 2046  UA3RBM OK1CYC 73
20m 
UTC    dB Audio  Message
194300 -14 2432  JA4FKX OK1CYC R-03
194315 -12 2433  OK1CYC JA4FKX RR73
200745  -7 2515  OK1CYC R3KIA -12
204700 -10 2582  OK1CYC T77RN +01 (x4)
205645  +3 1926  OK1CYC <...> -14
030845 -11 2505  RW9WT OK1CYC JN79
031815 -11 1130  W7YA OK1CYC JN79 (x3)
032330 -19 1130  CQ OK1CYC JN79 (x3)
80m 
UTC    dB Audio  Message
200815 -17 2737  CQ OK1CYC JN79 (x3)
200930  +7 2134  OK1CYC 9A5E JN75
200945 -12 2737  9A5E OK1CYC +11
201030  +7 2134  OK1CYC 9A5E 73
201045  -9 2737  SQ2BXJ OK1CYC -11
201130  -6 2736  OK1CYC SQ2BXJ R-12 (x2)
10m 
UTC    dB Audio  Message
144145 -18 1818  OK1CYC II2WWA +07 (x2)
144415 +12 2762  OK1CYC TM2WWA -08 (x2)
145200 -18 1844  OK1CYC TM8WWA +09 (x2)
152745 -23 1903  OK1CYC EH8WWA RR73
160045  -9  445  OK1CYC A71AH RR73

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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