RW3DC — 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: KO85

Receiver-side FT8 activity involving RW3DC, decoded by SO8OO in southeastern Poland. 258 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, across 9 UTC dates in the available aggregate history. Observed between 2026-07-31 and 2026-10-22.

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 258 FT8 messages attributed to RW3DC as the transmitting token by decoded message structure across 9 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (33%), followed by 80 m (24%) and 160 m (23%). Most decodes (62%) fell within the six-hour window 16:00-22:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -15 dB.

Overview

258
Messages attributed
9
UTC dates decoded
25
Active 15-min windows
-15 dB
Estimated median S/N

Bands

First attributed message: 2026-07-31
Last attributed message: 2026-10-22 16:30 UTC

Observed FT8 message patterns

Attributed sample
258 messages
Active dates
9 UTC dates
Estimated median S/N
-15 dB
Estimated 10th-90th percentile
-22 to -3 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 121, moderate (-15 to -9 dB) 64, strong (≥ -8 dB) 73.

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 RW3DC

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
KO85 · 116 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,193 km (approx.)
Last such locator decoded
2026-10-22 16:28 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 UTCBandRW3DC S/NCounterpartCounterpart S/NMsgsCapture
10-22 16:30 40m -18 / - M1DBW - / -14 2 Partial capture
10-22 16:28 40m -16 / - UK8IF - / -11 2 Partial capture
10-22 16:25 40m -18 / - UN8DSW - / - 2 ✓ Closing fragment
10-17 17:03 80m -2 / 0 RG3M -11 / +5 5 ✓ Full exchange observed
10-17 17:03 80m -2 / -11 RW1AI -5 / 0 4 Partial capture
10-17 17:01 80m -4 / -8 R2OM -14 / -17 3 ✓ Full exchange observed
10-17 16:54 80m -11 / - OK3WOD - / -14 3 ✓ Closing fragment
10-17 16:53 80m -2 / - UB6OAJ - / 0 2 ✓ Closing fragment
10-17 16:52 80m -4 / - RV3X -6 / - 3 ✓ Closing observed
10-17 16:50 80m -8 / - RA6MQ - / -10 2 ✓ Closing fragment
10-17 16:47 80m -2 / -2 R7FQ -10 / -4 5 ✓ Full exchange observed
10-17 16:46 80m -5 / - RN7A - / -6 2 ✓ Closing fragment
10-17 16:45 80m -5 / - RA3WY - / - 2 ✓ Closing fragment
10-17 16:43 80m -2 / - 4Z5AV - / -7 3 ✓ Closing fragment
10-17 16:41 80m -5 / - RA6ZD - / +8 2 ✓ Closing fragment
10-17 16:39 80m -4 / -5 UN0GY -11 / -6 4 ✓ Full exchange observed
10-17 16:06 80m -4 / +9 R7CD -5 / +7 6 ✓ Full exchange observed
10-17 16:05 80m -7 / -9 R1BED -17 / -10 4 ✓ Full exchange observed
10-17 16:04 80m - / -11 DL6KA -9 / - 12 Partial capture
10-17 15:59 160m - / - SQ8GBG -2 / - 4 Partial capture
10-16 18:08 160m -17 / -6 RN1NEB -16 / -4 6 ✓ Full exchange observed
10-16 18:06 160m - / -20 DK7ZT -12 / - 3 Partial capture
10-16 18:06 160m -16 / - UD8S - / +1 2 ✓ Closing fragment
10-16 18:04 160m -11 / -8 RU3FM -8 / -1 4 ✓ Full exchange observed
10-16 18:01 160m -18 / - 9K2HN - / - 3 Partial capture
10-16 17:59 160m -14 / - R3RB - / -9 2 ✓ Closing fragment
10-16 17:56 160m -10 / - R3DFU - / -13 2 ✓ Closing fragment
10-16 17:52 160m - / - DG1LRH -22 / - 3 Partial capture
10-16 17:48 160m -20 / - RA3RGQ - / +1 2 ✓ Closing fragment
10-16 17:47 160m -23 / - RA3VX - / -7 2 ✓ Closing fragment
10-16 17:46 160m -15 / - RA3RDN - / -8 2 ✓ Closing fragment
10-16 17:44 160m -14 / - UA4LDP - / -10 2 ✓ Closing fragment
10-14 22:04 80m - / +10 EC5M -5 / - 8 Partial capture
10-14 22:01 80m +1 / - Z61DX -7 / - 3 ✓ Closing observed
10-14 21:58 80m +2 / - DO8JB - / - 2 Partial capture
10-14 21:54 60m -16 / -7 F5RRS +6 / -6 5 ✓ Full exchange observed
10-14 21:53 60m -10 / +4 DL1CF -9 / -7 4 ✓ Full exchange observed
10-14 21:52 60m -1 / - A92AE - / -19 3 Partial capture
10-14 21:47 60m -11 / -3 OZ7CL -17 / -7 6 ✓ Full exchange observed
10-14 21:43 60m -4 / -5 F1FPL -13 / -15 6 ✓ Full exchange observed
10-14 21:42 60m -4 / -7 EA1R -11 / -22 5 ✓ Full exchange observed
10-14 21:41 60m -8 / -2 IZ3XBL -5 / -11 9 ✓ Full exchange observed
10-14 21:36 60m -6 / -22 VE1YX -16 / -15 17 ✓ Full exchange observed
10-11 17:41 160m -13 / - R3RB - / -22 2 Partial capture
10-11 17:39 160m -7 / - R6ZEJ - / -19 3 Partial capture
10-11 17:38 160m - / - SQ8GBG +2 / - 4 Partial capture
10-11 17:36 160m -14 / - R4RJ - / -12 2 ✓ Closing fragment
10-11 17:34 160m -14 / - UA4FKT -20 / - 3 ✓ Closing observed
08-23 06:01 20m -19 / -13 UC6D +9 / -11 4 ✓ Full exchange observed
08-23 05:56 20m -16 / -1 RA6ANN -6 / -2 7 ✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

40m
UTC    dB Audio  Message
233845 -24 1640  M1WLK RW3DC RR73
234100 -24 1640  HK3X RW3DC 73
171730  -5  423  RW3DC UB6OAJ -08
172000 -16 1652  RW3DC OZ0A R-14
172315 -20 1653  CQ RW3DC KO85 (x2)
172400 -20 1651  RW3DC PA7D JO23
172545 -15 1652  BA8BLK RW3DC -12
162530 -16 1872  UN8DSW RW3DC KO85 (x2)
162730 -17 1872  M1DBW RW3DC KO85
162830 -15 1872  UK8IF RW3DC KO85 (x2)
163000 -19 1872  M1DBW RW3DC R-14 (x2)
80m
UTC    dB Audio  Message
170115 -14 2752  RW3DC R2OM -08
170130  -3 1618  R2OM RW3DC R-17 (x2)
170230  +1 1618  CQ RW3DC KO85
170315  -5 2265  RW3DC RW1AI -11
170315 -11  314  RW3DC RG3M KO97
170315 -17 1503  RW3DC HB3YTK JN46
170330  +1 1618  RG3M RW3DC +05
170345  -8  314  RW3DC RG3M R+00
170400  -4 1618  RG3M RW3DC RR73
170415 -15  314  RW3DC RG3M 73
170430  -2 1618  RW1AI RW3DC R+00 (x3)
170700  -1 1618  CQ RW3DC KO85
160m
UTC    dB Audio  Message
180715 -14  823  RW3DC DK7ZT -20 (x2)
180830 -18 1141  RW3DC RN1NEB -06
180845 -16 1618  RN1NEB RW3DC R-04
180900 -14 1140  RW3DC RN1NEB RR73
180915 -15 1618  RN1NEB RW3DC 73
180930 -16 1141  RW3DC RN1NEB RR73
180945 -21 1617  RN1NEB RW3DC 73
181015 -19 1618  CQ RW3DC KO85                         a1
181030  +0 1998  RW3DC SQ9PBV JN99
181030  +1 1597  RW3DC SP3HUU JO71
155900  -4 1492  RW3DC SQ8GBG KN09 (x4)
60m
UTC    dB Audio  Message
215115  -4 1648  OZ7CL RW3DC R-07 (x2)
215200 -21 1648  RW3DC SM3ULU JP81
215215  +0 1648  A92AE RW3DC R-19 (x3)
215345  -9 1648  DL1CF RW3DC -07
215400 -11 1478  RW3DC DL1CF R+04
215415 -12 1647  DL1CF RW3DC RR73
215430  +1 1892  RW3DC F5RRS JN36
215430  -7 1478  RW3DC DL1CF 73
215445 -15 1648  F5RRS RW3DC -06
215500  +9 1892  RW3DC F5RRS R-07
215515 -16 1647  F5RRS RW3DC RR73
215530  +9 1892  RW3DC F5RRS 73
20m
UTC    dB Audio  Message
055700 -10 1504  RW3DC RA6ANN KN95
055715 -17 1687  SV1EKI RW3DC KO85
055730  -6 1504  RW3DC RA6ANN KN95
055745 -15 1687  RA6ANN RW3DC -02
055800  -4 1504  RW3DC RA6ANN R-01
055815 -18 1687  RA6ANN RW3DC RR73
055830  -2 1504  RW3DC RA6ANN 73
055945 -13 1687  CQ RW3DC KO85
060100  +9 1687  RW3DC UC6D -13
060115 -18 1687  CQ RW3DC KO85
060130  +9 1687  RW3DC UC6D -13
060145 -19 1687  UC6D RW3DC R-11
060200 +10 1687  RW3DC UC6D RR73
060245 -17 1687  CQ RW3DC KO85 (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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