R2ZC — 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: KO81

Receiver-side FT8 activity involving R2ZC, decoded by SO8OO in southeastern Poland. 561 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 33 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-10-19.

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 561 FT8 messages attributed to R2ZC as the transmitting token by decoded message structure across 33 UTC dates in the available aggregate history. The largest monitored-band total was 10 m (42%), followed by 20 m (39%) and 40 m (19%). Most decodes (64%) fell within the six-hour window 05:00-11:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -7.9 dB.

Overview

561
Messages attributed
33
UTC dates decoded
114
Active 15-min windows
-7.9 dB
Estimated median S/N

Bands

40m · 106 20m · 217 10m · 238
First attributed message: 2026-06-08
Last attributed message: 2026-10-19 06:23 UTC

Observed FT8 message patterns

Attributed sample
561 messages
Active dates
33 UTC dates
Estimated median S/N
-7.9 dB
Estimated 10th-90th percentile
-18 to +2 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 99, moderate (-15 to -9 dB) 153, strong (≥ -8 dB) 309.

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 R2ZC 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 R2ZC

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
KO81 · 302 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,083 km (approx.)
Last such locator decoded
2026-10-19 06:23 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 UTCBandR2ZC S/NCounterpartCounterpart S/NMsgsCapture
10-19 06:22 40m - / - F1IQH -9 / - 4 Partial capture
10-16 17:07 40m -6 / +7 R1BRY -12 / -9 4 ✓ Full exchange observed
10-16 17:02 40m -11 / - UB6HWF - / -10 3 ✓ Closing fragment
10-16 17:00 40m -8 / - RM8CZ - / -5 2 Partial capture
10-16 16:57 40m -10 / - UN0GY - / -9 3 ✓ Closing fragment
10-15 16:20 40m -4 / -9 RU3ACA -4 / 0 5 ✓ Full exchange observed
10-15 16:07 40m +4 / +5 R6UBM -4 / +1 3 ✓ Full exchange observed
10-15 14:03 40m -6 / - RW9WU - / - 2 Partial capture
10-15 14:01 40m -10 / - HF780C - / -13 2 Partial capture
10-15 13:57 40m - / -1 RM3DM -19 / - 2 ✓ Closing fragment
10-15 13:54 40m -9 / - Z61DX -5 / - 2 ✓ Closing observed
10-15 13:53 40m -10 / - R3DQB - / -3 2 ✓ Closing fragment
10-15 13:48 40m -5 / - R3DQB - / - 5 Partial capture
10-15 13:46 40m -8 / 0 R80SAA +8 / - 3 ✓ Closing observed
10-14 16:10 40m - / -15 PD1RMS -15 / - 2 Partial capture
10-14 16:06 40m -5 / - UB3BHW - / -19 4 ✓ Closing fragment
10-14 15:16 40m -7 / - R4PIN -13 / -11 4 ✓ Closing observed
10-14 15:14 40m -6 / - R2DWJ - / -4 4 ✓ Closing fragment
10-14 15:12 40m -4 / - OH3MB +6 / -12 5 ✓ Full exchange observed
10-14 15:09 40m -6 / - R1WAB - / - 2 Partial capture
10-14 15:07 40m -5 / -15 R3DPZ -19 / -1 4 ✓ Full exchange observed
10-14 15:05 40m -5 / - R0AF - / -11 2 ✓ Closing fragment
10-14 15:05 40m - / -5 R1WAB -12 / - 3 Partial capture
10-14 15:03 40m -3 / 0 R3MEA -1 / - 3 ✓ Closing observed
10-14 14:54 40m -7 / +3 RZ9A -14 / -4 5 ✓ Full exchange observed
10-14 14:54 40m -7 / - UN7EG - / -18 4 ✓ Closing fragment
10-10 14:29 40m -7 / - UB3BDB - / -7 3 ✓ Closing fragment
10-10 14:27 40m -7 / - UB3BAE/P - / - 2 Partial capture
10-10 14:26 40m -4 / - RD3MJ -9 / -1 4 ✓ Closing observed
10-08 14:33 40m -14 / - UB6LUR - / - 2 ✓ Closing fragment
10-08 14:31 40m -13 / - R9FGJ - / -14 3 ✓ Closing fragment
10-08 14:30 40m - / -2 UA6LTA -10 / - 2 ✓ Closing fragment
10-08 14:28 40m -18 / - RJ4H - / - 3 ✓ Closing fragment
10-08 14:26 40m -17 / - UA9QFF - / -19 3 ✓ Closing fragment
10-08 14:25 40m -11 / - R8CKD - / -7 2 ✓ Closing fragment
10-08 14:21 40m -18 / -7 SM7XON -12 / - 3 ✓ Closing observed
10-02 05:18 40m -7 / - OT7K - / - 2 Partial capture
10-02 05:16 40m -9 / - UB6LLI - / -12 3 ✓ Closing fragment
08-26 14:20 20m -6 / - BH4ECL - / -10 3 ✓ Closing fragment
08-26 14:18 20m - / -6 BG0EMF -21 / - 2 ✓ Closing fragment
08-26 14:15 20m -9 / - UA9KAD - / -4 3 ✓ Closing fragment
08-26 14:13 20m -5 / - TA1RJV - / -7 3 ✓ Closing fragment
08-26 14:12 20m -1 / - S57TW - / -10 3 ✓ Closing fragment
08-26 14:09 20m -6 / - JH0MJB - / - 2 Partial capture
08-26 14:07 20m -3 / - DL9KM - / -10 2 ✓ Closing fragment
08-26 14:06 20m -4 / - UA9UFJ - / -14 2 ✓ Closing fragment
08-26 14:02 20m +1 / - MM0DXL - / -16 3 ✓ Closing fragment
08-26 14:00 20m -3 / - TA2PCB - / -7 3 ✓ Closing fragment
08-26 13:55 20m -2 / - BG2GWN - / - 2 Partial capture
08-26 09:48 20m - / - GJ0KYZ +14 / - 3 Partial capture

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
170730  -5  350  R1BRY R2ZC R-09
170745 -12 1146  R2ZC R1BRY RR73
171200  -9  351  UC6W R2ZC KO81
060845 -10  351  RW6HPS R2ZC KO81
061000  -4  351  UB3YFO R2ZC KO81
061300  -8  351  R8CC R2ZC R-08
061900  +1 2374  R2ZC IQ4JO JN63
062045 -13  351  CQ R2ZC KO81                          a1
062200 -10  353  R2ZC F1IQH JN27
062215 -14  352  CQ R2ZC KO81
062230 -11  354  R2ZC F1IQH JN27 (x3)
062345 -10  352  CQ R2ZC KO81
065415 -18 1689  R2ZC UA2FFD 73
20m 
UTC    dB Audio  Message
141245  -6  372  S57TW R2ZC R-10 (x2)
141345  -8 1661  TA1RJV R2ZC KO81 (x3)
141515 -11 1872  UA9KAD R2ZC KO81
141615  +1 1026  TA4KO R2ZC 73
141645  -7 1872  UA9KAD R2ZC R-04 (x2)
141745 -10 1235  F4DZF/P R2ZC KO81
141830 -20 1605  R2ZC BG0EMF -06 (x2)
142045  -4 1822  BH4ECL R2ZC KO81 (x3)
10m 
UTC    dB Audio  Message
075815  -9  456  E75CC R2ZC R-01 (x2)
075930  -6  455  OH4JFN R2ZC KO81
063545 -15 1980  R2ZC IU7VOL RRR

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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