R3IAD — 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: European Russia Most frequent locator attributed to this token: KO76

Receiver-side FT8 activity involving R3IAD, decoded by SO8OO in southeastern Poland. 503 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, 10m, across 27 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-10-20.

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 503 FT8 messages attributed to R3IAD as the transmitting token by decoded message structure across 27 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (68%), followed by 80 m (14%) and 10 m (9%). Most decodes (99%) fell within the six-hour window 14:00-20:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -10 dB.

Overview

503
Messages attributed
27
UTC dates decoded
96
Active 15-min windows
-10 dB
Estimated median S/N

Bands

First attributed message: 2026-06-08
Last attributed message: 2026-10-20 17:44 UTC

Observed FT8 message patterns

Attributed sample
503 messages
Active dates
27 UTC dates
Estimated median S/N
-10 dB
Estimated 10th-90th percentile
-19 to 0 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 125, moderate (-15 to -9 dB) 162, strong (≥ -8 dB) 216.

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 R3IAD

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
KO76 · 304 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,139 km (approx.)
Last such locator decoded
2026-10-20 17:12 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 UTCBandR3IAD S/NCounterpartCounterpart S/NMsgsCapture
10-20 17:04 40m -14 / - RG6ZF - / -6 3 ✓ Closing fragment
10-20 15:54 40m -10 / -15 R6BH -12 / -2 4 ✓ Full exchange observed
10-20 15:39 40m - / - RA3WPF -10 / - 4 Partial capture
10-20 15:36 40m -8 / -16 R4ADJ -15 / - 3 ✓ Closing observed
10-18 18:46 80m -7 / -6 R1TAX -6 / -4 4 ✓ Full exchange observed
10-18 18:32 80m -2 / -6 RC6OZ -6 / - 3 ✓ Closing observed
10-18 18:29 80m -4 / -15 R8PG -13 / - 3 ✓ Closing observed
10-18 18:20 80m -4 / - RA9ANC -18 / -15 3 Partial capture
10-18 18:15 80m - / - OE6TNO +4 / - 9 Partial capture
10-18 18:14 80m -6 / -3 EW4DX 0 / -15 4 ✓ Full exchange observed
10-18 18:12 80m -2 / -17 R2BQM -16 / -20 3 Partial capture
10-18 18:12 80m -4 / - R3SN - / -17 2 ✓ Closing fragment
10-18 18:07 80m -2 / - RC9WC -14 / -6 4 ✓ Closing observed
10-18 17:12 80m -13 / -9 RZ4M -10 / -4 4 ✓ Full exchange observed
10-18 17:12 80m - / - R4FES -16 / - 5 Partial capture
10-18 17:10 80m -12 / - UA3IDQ - / - 3 ✓ Closing fragment
10-17 18:36 160m - / - SV2AEL +7 / - 8 Partial capture
10-17 18:35 160m - / - R1IO -18 / - 2 Partial capture
10-17 17:02 80m - / - RU3X +6 / - 2 Partial capture
10-17 16:58 160m - / - RU3X -16 / - 2 Partial capture
10-16 18:59 160m - / -1 RU3T -10 / - 2 Partial capture
10-16 18:59 160m - / - SV2AEL +1 / - 19 Partial capture
10-08 15:40 80m -6 / -13 R7IA -20 / +8 5 ✓ Full exchange observed
10-08 15:33 80m - / -10 RK4CH -6 / - 4 ✓ Closing fragment
10-08 15:32 80m - / -9 RD7O 0 / - 3 ✓ Closing fragment
10-07 17:18 40m - / -5 RA6OD -11 / - 3 ✓ Closing fragment
10-07 17:16 40m -6 / - R9FF - / +2 3 ✓ Closing fragment
10-07 17:09 40m -13 / - AP5ARS - / - 3 Partial capture
10-06 14:56 40m -6 / -7 R6OAG -16 / -4 4 ✓ Full exchange observed
10-06 14:52 40m -10 / - BG0CSA - / - 3 Partial capture
10-06 14:50 40m -8 / - BD8ELZ - / -17 3 ✓ Closing fragment
10-05 18:36 160m -17 / -18 DO5OT +14 / -21 8 ✓ Full exchange observed
10-05 18:26 160m - / - ON7GB +1 / - 2 Partial capture
10-05 18:26 160m - / - SQ3RX -8 / - 2 Partial capture
10-05 18:19 160m -18 / - R2DRE -16 / - 3 ✓ Closing observed
10-05 18:16 160m - / -18 RA3ZH +6 / - 2 ✓ Closing fragment
10-05 18:03 160m -12 / - LZ2IP - / - 3 Partial capture
10-05 15:45 40m -12 / - BG2ATH - / - 2 Partial capture
10-05 15:41 40m -6 / - RA9QBR - / -12 2 Partial capture
10-05 15:38 40m -12 / -3 R9FE -10 / - 4 ✓ Full exchange observed
10-05 15:34 40m -10 / +2 RM4N -12 / - 4 ✓ Full exchange observed
10-05 15:30 40m -8 / -16 RV9CW -9 / +10 4 ✓ Full exchange observed
10-05 15:26 40m -4 / - OH3MB 0 / +2 6 ✓ Full exchange observed
10-05 15:25 40m -11 / - RA1PO - / +8 2 ✓ Closing fragment
10-05 15:22 40m -11 / - BI4IWL - / - 4 Partial capture
10-05 15:18 40m -8 / - UG4L - / - 2 Partial capture
10-05 14:36 80m -16 / - RA3TK - / -8 2 ✓ Closing fragment
09-23 17:24 40m -8 / -11 RA3ZOM 0 / - 3 Partial capture
09-23 17:15 40m -6 / -3 RV3GZ -13 / -14 5 ✓ Full exchange observed
09-23 17:13 40m -20 / - RJ4H - / -16 2 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m
UTC    dB Audio  Message
154045  -9 1418  R3IAD RA3WPF KO81 (x2)
154300  -9 2273  CQ R3IAD KO76
155415 -13 1855  R3IAD R6BH -15
155430 -11 2273  R6BH R3IAD R-02
155445 -12 1855  R3IAD R6BH RR73
155500 -10 2273  R6BH R3IAD 73
170430  -9 2065  RG6ZF R3IAD KO76 (x3)
170830  +2 2375  R3IAD UA9SHH -10
171130 -16 2064  CQ R3IAD KO76 (x2)
171230 -13 2064  OE/DL1JAT R3IAD -08
174400 -14 1827  RC7LX R3IAD 73
80m
UTC    dB Audio  Message
182000 -18 2224  R3IAD RA9ANC MO06
182015  -3 2347  RA9ANC R3IAD -15 (x2)
182330 -19 2348  R3IAD R2BQM -18
182845  -1 2284  CQ R3IAD KO76
182900 -11 1244  R3IAD R8PG -15 (x2)
182945  -4 2284  R8PG R3IAD 73
183200  -5  900  R3IAD RC6OZ R-06
183215  -2 2283  RC6OZ R3IAD RR73
183230  -7  900  R3IAD RC6OZ 73
184600  -9 2260  R3IAD R1TAX -06
184615  -3 2284  R1TAX R3IAD R-04
184630  -3 2260  R3IAD R1TAX RR73
184645 -11 2283  R1TAX R3IAD 73
160m
UTC    dB Audio  Message
165330 -23 2306  CQ R3IAD KO76
165845 -14 2093  R3IAD RU3X KO73 (x2)
183500 -15 2302  R3IAD R1IO LP82 (x2)
183615  +7  412  R3IAD SV2AEL KN10 (x8)
194300 -19 1241  R3IAD R6TA LN13
194300 -14 1427  R3IAD R2EA/P -13
20m
UTC    dB Audio  Message
140400  -2  420  R3IAD RR73; LA6YJA <...> +04
152215  +4 2932  R3IAD JA8CJY -11 (x2)
161345 -10  377  R3IAD OO0O JO11
10m
UTC    dB Audio  Message
153815  -3 2081  R3IAD DO7DE JN49
154245 -11 1153  R3IAD DH5NC JN49 (x2)
135345 -14 1637  R3IAD R6BH +09 (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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