RZ1AS — 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: KO59

Receiver-side FT8 activity involving RZ1AS, decoded by SO8OO in southeastern Poland. 1,124 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 77 UTC dates in the available aggregate history. Observed between 2026-06-06 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 1,124 FT8 messages attributed to RZ1AS as the transmitting token by decoded message structure across 77 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (77%), followed by 20 m (20%) and 10 m (3%). The busiest six-hour window was 22:00-04:00 UTC, containing 48% of decodes. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -8.1 dB.

Overview

1,124
Messages attributed
77
UTC dates decoded
212
Active 15-min windows
-8.1 dB
Estimated median S/N

Bands

First attributed message: 2026-06-06
Last attributed message: 2026-10-19 21:37 UTC

Observed FT8 message patterns

Attributed sample
1,124 messages
Active dates
77 UTC dates
Estimated median S/N
-8.1 dB
Estimated 10th-90th percentile
-17 to +1 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 176, moderate (-15 to -9 dB) 378, strong (≥ -8 dB) 570.

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 RZ1AS

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
KO59 · 712 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,214 km (approx.)
Last such locator decoded
2026-10-19 21:37 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 UTCBandRZ1AS S/NCounterpartCounterpart S/NMsgsCapture
10-19 21:37 40m -23 / - VK6DW - / - 2 Partial capture
10-19 21:28 40m -21 / - VK6DW - / - 3 Partial capture
10-18 01:37 40m -14 / - R5BM/M - / - 4 Partial capture
10-18 00:28 40m - / -3 UN7LZ -6 / - 2 ✓ Closing fragment
10-17 18:04 40m -18 / - R3KGN - / -1 4 ✓ Closing fragment
10-17 17:59 40m -11 / - S21SDR - / - 8 Partial capture
10-17 17:56 40m -11 / - IQ4JO -6 / -9 3 ✓ Closing observed
10-17 17:54 40m -10 / - RL3QGD - / -7 2 ✓ Closing fragment
10-17 17:53 40m -10 / - OE6TNO -5 / -17 3 Partial capture
10-17 17:51 40m 0 / - SP6AMI - / -2 3 Partial capture
10-17 17:49 40m -3 / - BI1HJR - / -18 4 ✓ Closing fragment
10-17 17:45 40m -2 / - UA9CMN - / -11 2 Partial capture
10-17 17:42 40m +4 / - GJ0KYZ - / -20 4 ✓ Closing fragment
10-17 17:39 40m +2 / +4 SQ5PTZ -11 / -3 4 ✓ Full exchange observed
10-17 17:38 40m +2 / - DM3ER - / - 2 Partial capture
10-17 17:29 40m -4 / - IU4PPL -8 / -10 5 ✓ Full exchange observed
10-17 17:28 40m -2 / - ZL1VAH - / -22 7 ✓ Closing fragment
10-17 12:19 40m -8 / - RC6AA - / -16 2 ✓ Closing fragment
10-17 12:15 40m -6 / - RW4HB - / -14 2 Partial capture
10-17 12:12 40m -7 / -1 SP8WB -8 / -8 4 ✓ Full exchange observed
10-16 00:23 40m - / -18 EY7BM -18 / - 2 ✓ Closing fragment
10-15 16:30 40m -4 / -2 R2ZCA -5 / -1 3 Partial capture
10-15 13:27 10m - / - EA7Z -2 / - 2 Partial capture
10-15 01:27 40m -17 / - WK1O - / - 2 Partial capture
10-15 00:26 40m - / -4 TA2LE -19 / - 2 ✓ Closing fragment
10-14 16:37 40m -15 / - UA4CGR - / -5 3 ✓ Closing fragment
10-14 16:36 40m -8 / - BH3HAO - / -19 2 ✓ Closing fragment
10-14 16:33 40m -9 / - RU4SO - / -4 4 Partial capture
10-14 16:26 40m -9 / - S79VU - / - 12 Partial capture
10-14 16:24 40m +2 / - DC2MA -24 / -10 3 ✓ Closing observed
10-14 16:23 40m +1 / - RT8T - / -12 3 ✓ Closing fragment
10-14 16:09 40m -2 / -2 RV3ML -10 / +1 4 ✓ Full exchange observed
10-14 16:06 40m 0 / - RT8T - / - 2 Partial capture
10-14 02:41 40m - / -13 PQ5TA -12 / - 2 ✓ Closing fragment
10-14 01:53 40m - / -10 UN0GY -12 / - 2 ✓ Closing fragment
10-11 16:11 40m - / 0 R6HV -11 / - 3 Partial capture
10-11 16:08 40m -12 / - R9SH - / -14 2 ✓ Closing fragment
10-11 16:01 40m -10 / - R6AAU - / - 5 Partial capture
10-11 15:59 40m -4 / - R1OAC - / - 2 Partial capture
10-11 15:48 40m - / -9 HA3MN +1 / - 4 Partial capture
10-11 15:45 40m -4 / - RU1QX - / -5 5 ✓ Closing fragment
10-09 03:38 40m -18 / - UI6O - / - 2 Partial capture
10-09 03:36 40m - / - R7OI -15 / - 2 ✓ Closing fragment
10-09 00:58 40m - / -14 PY7XC -3 / - 3 ✓ Closing fragment
10-09 00:24 40m - / -16 G7KNF -5 / - 2 ✓ Closing fragment
10-09 00:09 40m - / -7 EX7CQ -14 / - 2 ✓ Closing fragment
10-08 16:13 40m +5 / -4 EW8KO -3 / +1 5 ✓ Full exchange observed
10-08 16:12 40m -5 / - R6AEB - / - 2 Partial capture
10-08 16:09 40m -12 / +3 PA8DC -4 / -11 5 ✓ Full exchange observed
10-08 16:07 40m -5 / - SN120LPU - / -7 2 Partial capture

Recent FT8 messages decoded at SO8OO

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

40m
UTC    dB Audio  Message
180545 -17 2174  R3KGN RZ1AS 73
002800  -8  839  RZ1AS UN7LZ -03 (x2)
012000 -21 1488  PS7RW RZ1AS KO59
013745 -11  829  R5BM/M RZ1AS KO59 (x4)
212845 -24 2120  VK6DW RZ1AS KO59 (x3)
213445 -24 2119  G0OYR RZ1AS 73
213715 -23 2120  VK6DW RZ1AS KO59 (x2)
011830 +10  496  RZ1AS P4/WE9V -18
10m
UTC    dB Audio  Message
143845 -11  735  RZ1AS RU4I -05
132730  -1 2785  RZ1AS EA7Z IM67 (x2)
132345 -23 1397  RZ1AS CT1EHK IM58
114845  -1  551  RZ1AS EA7L IM86
20m
UTC    dB Audio  Message
003245 -15  854  CT3MD RZ1AS 73
005015 -14  855  CE3RKW RZ1AS KO59
162500  +5 1758  M9OOS RZ1AS KO59 (x5)
151545 -15  557  S57TW RZ1AS KO59
151615 -10  557  VK5AIB RZ1AS KO59 (x3)
151745  +2  556  S57TW RZ1AS R-08
152045 -13  557  BA4SGR RZ1AS R-18 (x2)
142730 -19 1066  RZ1AS BG4OOO RR73
80m
UTC    dB Audio  Message
163230 -15 1425  RZ1AS RA6ANN KN95 (x6)

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

FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee