OK1CT — 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: Czech Republic Most frequent locator attributed to this token: JN69

Receiver-side FT8 activity involving OK1CT, decoded by SO8OO in southeastern Poland. 1,689 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 69 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-11-06.

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 1,689 FT8 messages attributed to OK1CT as the transmitting token by decoded message structure across 69 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (61%), followed by 20 m (20%) and 80 m (20%). Most decodes (51%) fell within the six-hour window 04:00-10:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (79%); the estimated median was -1 dB.

Overview

1,689
Messages attributed
69
UTC dates decoded
325
Active 15-min windows
-1 dB
Estimated median S/N

Bands

80m · 330 40m · 1,024 20m · 335
First attributed message: 2026-06-06
Last attributed message: 2026-11-06 06:31 UTC

Observed FT8 message patterns

Attributed sample
1,689 messages
Active dates
69 UTC dates
Estimated median S/N
-1 dB
Estimated 10th-90th percentile
-13 to +13 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 90, moderate (-15 to -9 dB) 269, strong (≥ -8 dB) 1,330.

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 OK1CT 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 OK1CT

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
JN69 · 1,037 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
634 km (approx.)
Last such locator decoded
2026-11-06 06:30 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 UTCBandOK1CT S/NCounterpartCounterpart S/NMsgsCapture
11-06 06:30 80m -2 / +4 PI40EUDXF -4 / +10 4 Partial capture
10-21 10:52 10m - / +5 EP2AES -15 / - 3 ✓ Closing fragment
10-09 20:44 40m -10 / - JH5LCN - / - 2 ✓ Closing fragment
10-09 20:31 40m -2 / - TF8KW - / - 2 Partial capture
10-09 20:23 40m -8 / - VJ6X - / -15 2 Partial capture
10-09 20:13 40m -2 / - VJ6X - / - 2 Partial capture
10-09 20:09 40m -6 / - VJ6X - / - 2 Partial capture
10-09 20:05 40m -8 / - VJ6X - / - 2 Partial capture
09-27 21:48 80m +7 / - UN8DSW - / -16 3 ✓ Closing fragment
09-27 13:48 40m -4 / - DL1YFS - / -13 4 ✓ Closing fragment
09-27 06:05 40m -12 / - R2FAQ - / -8 2 Partial capture
09-25 06:01 40m -6 / - K4CAE - / - 5 Partial capture
09-25 05:53 40m -10 / - K4CAE - / - 2 Partial capture
09-25 04:31 80m +14 / -8 N0BUZ -15 / -9 9 ✓ Full exchange observed
09-25 04:23 80m +13 / - SN100PKP +10 / -19 2 Partial capture
09-24 05:22 80m -5 / - PJ2/W4IPC - / - 7 Partial capture
09-23 20:52 40m - / -21 RZ9OL/M -4 / - 2 Partial capture
09-22 04:52 40m -8 / - KA1MXL - / -12 4 ✓ Closing fragment
09-22 04:49 40m -2 / +3 GJ0KYZ -9 / -5 4 ✓ Full exchange observed
09-22 04:47 40m -1 / - NA9Y - / -16 4 ✓ Closing fragment
09-21 06:06 40m -16 / - DL2EGS - / - 3 Partial capture
09-21 05:59 40m -16 / - NA9Y - / - 2 Partial capture
09-21 05:47 40m -6 / - K2YF - / -9 2 Partial capture
09-21 05:30 80m +14 / - DF40ABF -4 / -5 3 Partial capture
09-21 05:28 80m -2 / - YU65AEC - / - 3 Partial capture
09-20 20:19 80m +10 / - EA7CRB - / -9 2 ✓ Closing fragment
09-20 19:55 80m +7 / - RI1FJZ - / -17 5 ✓ Closing fragment
09-20 17:26 80m +21 / - 9A3TGY - / -3 3 ✓ Closing fragment
09-20 17:16 80m +8 / - VK3BDL - / - 5 Partial capture
09-20 17:03 80m +6 / - VK3BDL - / - 9 Partial capture
09-20 16:51 80m +6 / - VK3BDL - / - 17 Partial capture
09-20 16:04 80m +6 / +6 F4GVO -10 / +3 6 ✓ Full exchange observed
09-20 16:03 80m +8 / +6 OE5DML +6 / +5 5 ✓ Full exchange observed
09-20 16:02 80m 0 / - YU65AEC +11 / - 2 Partial capture
09-19 18:45 40m -4 / - UA2FFD - / - 2 Partial capture
09-19 13:49 40m +1 / - DL7UVO - / -17 6 ✓ Closing fragment
09-19 13:36 40m -6 / - DL7UVO - / -24 5 Partial capture
09-19 05:44 40m -4 / - II4PAGE - / -19 2 Partial capture
09-19 05:38 80m +11 / - HI8DX - / -7 3 Partial capture
09-19 05:32 80m +14 / - HI8DX - / - 6 Partial capture
09-18 06:29 40m 0 / - SN100PKP - / - 2 Partial capture
09-18 06:25 40m -1 / -12 DB26YLBB -4 / 0 2 Partial capture
09-18 05:06 80m +17 / - N1WI - / -17 3 ✓ Closing fragment
09-18 05:04 80m +10 / - N3HPX - / -14 3 ✓ Closing fragment
09-17 20:05 80m +3 / - DF7NO -6 / -1 4 ✓ Full exchange observed
09-17 18:30 40m 0 / - M9KCA - / -8 2 ✓ Closing fragment
09-17 17:40 40m - / - UT0IN +2 / - 2 Partial capture
09-17 17:39 40m -8 / +3 PG5FRL -6 / -7 3 ✓ Full exchange observed
09-17 17:38 40m -6 / - EH3ST - / -5 2 ✓ Closing fragment
09-17 08:39 40m -7 / - F1LPT/P - / -6 3 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

80m 
UTC    dB Audio  Message
043145 +14 2479  N0BUZ OK1CT JN69
043200 -14 2482  OK1CT N0BUZ -08 (x3)
043315 +12 2482  N0BUZ OK1CT R-09 (x4)
214800 +11 1950  UN8DSW OK1CT JN69 (x3)
063015  -8 1703  PI40EUDXF OK1CT JN69
063030  -5 1703  OK1CT PI40EUDXF +04 (x2)
063115  +3 1703  PI40EUDXF OK1CT R+10
10m 
UTC    dB Audio  Message
105230 -14 1084  OK1CT EP2AES +05 (x3)
40m 
UTC    dB Audio  Message
142630  -9  539  OK1CT DG4BBK -08
200515  -8 2490  VJ6X OK1CT JN69 (x2)
200845 -10 2127  VK7AC OK1CT JN69
200945  -8 2489  VJ6X OK1CT JN69 (x6)
203115  +0  729  TF8KW OK1CT JN69 (x2)
204445 -12  332  JH5LCN OK1CT JN69 (x2)
204715 -10  270  F4LSG OK1CT RR73
20m 
UTC    dB Audio  Message
184545  +2 2373  OK1CT EA2WX/P +02
185130 -18 2372  SQ9SF OK1CT RR73
191615  -4 1079  N8DPD OK1CT JN69
191815  -1 2367  W1TF OK1CT JN69 (x3)
191945  +4 1080  N8DPD OK1CT JN69 (x2)
205430  -9 2723  9A3TGY OK1CT JN69
205445  -3 2724  OK1CT 9A3TGY -11 (x2)
205530  -9 2724  9A3TGY OK1CT 73
205600  -8 2720  SQ9SF OK1CT -18 (x2)
205900 -13 2629  HI3RRR OK1CT JN69

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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