R3ZBR — 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: KO80

Receiver-side FT8 activity involving R3ZBR, decoded by SO8OO in southeastern Poland. 1,264 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 52 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-11-05.

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 1,264 FT8 messages attributed to R3ZBR as the transmitting token by decoded message structure across 52 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (45%), followed by 80 m (34%) and 20 m (18%). Most decodes (76%) fell within the six-hour window 15:00-21:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (87%); the estimated median was -0.1 dB.

Overview

1,264
Messages attributed
52
UTC dates decoded
146
Active 15-min windows
-0.1 dB
Estimated median S/N

Bands

First attributed message: 2026-06-07
Last attributed message: 2026-11-05 17:21 UTC

Observed FT8 message patterns

Attributed sample
1,264 messages
Active dates
52 UTC dates
Estimated median S/N
-0.1 dB
Estimated 10th-90th percentile
-9.3 to +10 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 33, moderate (-15 to -9 dB) 134, strong (≥ -8 dB) 1,097.

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 R3ZBR

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
KO80 · 340 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,082 km (approx.)
Last such locator decoded
2026-11-05 17:16 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 UTCBandR3ZBR S/NCounterpartCounterpart S/NMsgsCapture
11-05 17:20 80m 0 / - RU6FS - / +7 2 Partial capture
11-05 17:16 80m +4 / - GB2POPPY - / -13 3 Partial capture
11-05 17:13 80m -1 / -16 IK6QOP +7 / -5 7 ✓ Full exchange observed
11-05 17:13 80m +2 / -25 UA4PDJ -3 / -17 5 ✓ Full exchange observed
11-05 17:12 80m +6 / - R3ZG -6 / - 3 ✓ Closing observed
11-05 17:10 80m +6 / - GB2POPPY - / -6 3 Partial capture
11-05 17:07 80m -3 / - R7YZ -10 / -3 2 Partial capture
11-05 17:04 80m +10 / - R2UZ -16 / -9 3 ✓ Closing observed
11-05 17:03 80m +13 / +2 RG7M -11 / +9 5 ✓ Full exchange observed
11-05 17:01 80m +3 / - RQ4F - / -6 3 ✓ Closing fragment
11-05 17:01 80m +6 / -2 R6OQ -5 / 0 6 ✓ Full exchange observed
11-05 17:00 80m +8 / -1 UD7G -12 / -5 4 ✓ Full exchange observed
11-05 16:59 80m +3 / -7 R3YAR +2 / - 4 ✓ Full exchange observed
11-05 16:56 40m +6 / - R4CQ - / -11 2 Partial capture
11-05 16:54 40m +4 / - R4PHH - / -12 2 Partial capture
11-05 16:51 40m -1 / - R4CCP - / -3 3 Partial capture
11-04 15:52 40m +2 / - UB8CSJ - / -16 7 ✓ Closing fragment
11-04 15:50 40m 0 / -8 F6FLU +1 / -9 6 ✓ Full exchange observed
11-04 15:44 80m - / -24 R9LY -15 / - 3 ✓ Closing fragment
11-04 15:42 80m - / -9 R3DFE -3 / - 3 ✓ Closing fragment
11-04 15:38 80m +5 / - UA4PBT - / -19 3 Partial capture
11-04 11:13 40m -6 / - R4ADE - / -9 2 ✓ Closing fragment
11-03 19:02 80m -6 / - EX7DY - / -6 2 Partial capture
11-03 19:01 80m -1 / - RA4ADF - / +10 2 ✓ Closing fragment
11-03 19:00 80m 0 / - RD4AAK - / +5 2 ✓ Closing fragment
11-03 18:58 80m 0 / - R8XF/P - / -14 2 Partial capture
11-03 18:37 40m - / - F8MRQ -4 / - 2 Partial capture
11-01 05:10 40m +1 / - CT7BRV - / -14 3 Partial capture
11-01 05:09 40m +3 / - EA9QD - / -19 3 Partial capture
11-01 05:08 40m +2 / - SP1EG - / -15 2 ✓ Closing fragment
11-01 05:06 40m +8 / - 9A5CW - / -5 2 ✓ Closing fragment
11-01 05:05 40m +8 / - TA3XEE - / -16 2 ✓ Closing fragment
11-01 05:03 40m +6 / 0 TA1MB -12 / -10 5 ✓ Full exchange observed
11-01 04:59 80m +2 / -11 RC3D -6 / -7 3 ✓ Full exchange observed
11-01 04:58 80m - / - OE8RPK -17 / - 3 Partial capture
11-01 04:56 80m -1 / -1 OK1UOZ +10 / - 4 ✓ Closing observed
11-01 04:56 80m - / - S50XX +18 / - 2 Partial capture
11-01 04:51 80m +2 / -13 CU2DX +1 / -6 3 Partial capture
11-01 04:50 80m -1 / - RL3QGD - / +8 2 Partial capture
11-01 04:47 80m -1 / -14 IK4TVP +5 / -3 8 ✓ Full exchange observed
11-01 04:46 80m -9 / -2 UA3ZUX +8 / - 5 ✓ Full exchange observed
11-01 04:46 80m -5 / -7 DO5PY +2 / -9 5 ✓ Full exchange observed
10-25 05:02 40m -4 / - F1IQH - / -22 2 ✓ Closing fragment
10-25 05:00 40m 0 / - F5MXH - / -14 2 ✓ Closing fragment
10-25 04:57 40m +5 / - R3UDU - / - 2 ✓ Closing fragment
10-25 04:50 80m - / - ON4MAP -19 / - 4 Partial capture
10-25 04:49 80m -2 / - R4GD - / -12 3 Partial capture
10-25 04:48 80m -6 / - F4IIX -1 / -19 5 Partial capture
10-25 04:48 80m -9 / +2 EU2ABM +4 / +6 4 ✓ Full exchange observed
10-25 04:46 80m -11 / -15 DO1OAS +4 / -18 5 ✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

80m
UTC    dB Audio  Message
171330  +0 2912  UA4PDJ R3ZBR -17
171345  -6 2911  R3ZBR UA4PDJ R-25
171345  +9 1434  R3ZBR IK6QOP JN62
171400  +3 2912  UA4PDJ R3ZBR RR73
171415  -1 2912  R3ZBR UA4PDJ 73
171415  +6 1434  R3ZBR IK6QOP JN62
171430  +3 2912  IK6QOP R3ZBR -05
171445  +7 1434  R3ZBR IK6QOP R-16
171500  -5 2911  IK6QOP R3ZBR RR73
171515  +6 1434  R3ZBR IK6QOP 73
171600  +2 2912  GB2POPPY R3ZBR KO80 (x3)
172030  +0 2912  RU6FS R3ZBR +07 (x2)
40m
UTC    dB Audio  Message
155315  +4 2978  UB8CSJ R3ZBR -16 (x3)
155445  +2 2978  CQ R3ZBR KO80
155615  +1 2979  UB8CSJ R3ZBR RR73 (x3)
165130  +3 2941  R4CCP R3ZBR KO80 (x3)
165330  +2 2941  UB3BGQ R3ZBR -25
165445  +4 2941  R4PHH R3ZBR KO80 (x2)
165600  +4 2942  R4CQ R3ZBR KO80 (x2)
20m
UTC    dB Audio  Message
204845 -15 3109  CQ R3ZBR KO80
210845 -13 2853  IZ1HJU R3ZBR -08
210945 -13 2853  TJ1GD R3ZBR -08
211545 -10 2926  HK3C R3ZBR -14
205000 -13 1885  R3ZBR PY3RK R-13 (x2)
190800 -11 2105  R3ZBR EA8BFH R-13
184645 -11 3079  EA9QD R3ZBR -21 (x2)
184745  -7 3079  7X2KF R3ZBR KO80
184815 -11 3079  EA9QD R3ZBR KO80 (x3)
190015 -14 3081  JA5ROH/P R3ZBR -25 (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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