R3DFS — 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: KO96

Receiver-side FT8 activity involving R3DFS, decoded by SO8OO in southeastern Poland. 1,029 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, 10m, across 36 UTC dates in the available aggregate history. Observed between 2026-06-12 and 2026-10-11.

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 1,029 FT8 messages attributed to R3DFS as the transmitting token by decoded message structure across 36 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (42%), followed by 40 m (23%) and 20 m (21%). Most decodes (73%) fell within the six-hour window 15:00-21:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -13.6 dB.

Overview

1,029
Messages attributed
36
UTC dates decoded
178
Active 15-min windows
-13.6 dB
Estimated median S/N

Bands

First attributed message: 2026-06-12
Last attributed message: 2026-10-11 04:43 UTC

Observed FT8 message patterns

Attributed sample
1,029 messages
Active dates
36 UTC dates
Estimated median S/N
-13.6 dB
Estimated 10th-90th percentile
-20 to -6 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 389, moderate (-15 to -9 dB) 447, strong (≥ -8 dB) 193.

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 R3DFS

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
KO96 · 145 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,353 km (approx.)
Last such locator decoded
2026-10-10 18:28 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 UTCBandR3DFS S/NCounterpartCounterpart S/NMsgsCapture
10-11 04:42 40m -12 / - R3KAB - / -2 2 Partial capture
10-10 18:38 160m - / -10 UA4FKT -2 / - 3 ✓ Closing fragment
10-10 18:34 160m - / -11 UG4L -10 / - 2 ✓ Closing fragment
10-10 18:31 60m - / - OE9GWV -11 / - 7 Partial capture
10-10 18:30 60m -17 / - DL1CF -1 / -21 4 ✓ Closing observed
10-10 18:29 60m -14 / - SP7IIX - / -21 3 ✓ Closing fragment
10-10 18:28 60m - / - F4IIX -8 / - 3 Partial capture
10-10 18:28 60m -16 / -16 IK3BNO +7 / - 4 ✓ Closing observed
10-10 18:26 60m -15 / -14 F5RRS +3 / -11 5 ✓ Full exchange observed
10-10 18:23 60m -14 / -22 EA3AKY -1 / -17 7 Partial capture
10-10 18:20 60m -17 / - 4O/DL1FDH - / -13 2 Partial capture
10-10 18:20 60m -15 / - IW5DNZ -10 / - 2 ✓ Closing observed
10-10 18:19 60m - / - DF7EF +7 / - 38 Partial capture
10-10 18:12 80m -20 / - EX8BT - / -16 2 Partial capture
10-10 18:00 80m - / -5 UA3ZUX -5 / - 3 ✓ Closing fragment
10-10 18:00 80m - / - RA3LCW +2 / - 2 Partial capture
10-10 17:58 80m -22 / -15 YU1EW 0 / -12 3 ✓ Full exchange observed
10-10 17:56 80m - / -3 R3YH -2 / - 2 ✓ Closing fragment
10-10 17:51 80m -13 / - R2OM - / -10 2 ✓ Closing fragment
10-10 17:50 80m -12 / - R4CHN - / -18 2 ✓ Closing fragment
10-10 17:46 80m -13 / - RK3ZB - / -8 3 Partial capture
10-10 17:44 80m -13 / - UA3GIE - / -7 3 ✓ Closing fragment
10-10 17:08 40m -12 / -6 TA2YYM -6 / -13 3 ✓ Full exchange observed
10-10 17:05 40m -14 / - BI3UPU - / -20 3 ✓ Closing fragment
10-10 16:16 40m - / -9 DK3JW +3 / - 3 ✓ Closing fragment
10-10 16:13 40m -10 / - BA7IWL - / -21 6 ✓ Closing fragment
10-10 16:04 40m -11 / +5 DK8HC/P -4 / - 3 ✓ Closing observed
10-10 15:33 40m - / -8 YL3ARH -8 / - 2 ✓ Closing fragment
10-10 15:12 40m -16 / - UG4P -6 / -5 3 ✓ Closing observed
10-10 15:11 40m -14 / 0 R4PFY -20 / 0 2 Partial capture
10-10 15:10 40m - / -11 UA1AEL -7 / - 3 ✓ Closing fragment
10-10 15:08 40m -12 / - YL3NF -2 / -4 6 ✓ Full exchange observed
10-09 19:08 80m - / -12 RX3ASQ -4 / - 3 ✓ Closing fragment
10-09 19:05 80m -16 / - SQ5ANT - / -13 3 Partial capture
10-09 19:04 80m -15 / -16 OH4KRN -11 / - 4 ✓ Closing observed
10-09 18:58 80m - / -10 RA3DAD -7 / - 5 ✓ Closing fragment
10-09 18:46 40m - / - PA0WDN -12 / - 15 Partial capture
10-09 18:26 40m - / -17 OE2CAL +8 / - 2 Partial capture
10-04 04:55 40m -17 / - EA8CIA - / -18 4 Partial capture
10-04 04:54 40m -14 / -3 LX1TI +7 / -15 5 Partial capture
10-04 04:48 40m -15 / - ON7KEI -12 / -21 3 ✓ Closing observed
10-04 04:46 40m -14 / -5 IU1WYC -3 / -17 4 ✓ Full exchange observed
10-04 04:43 40m -14 / - UB8QBI - / -14 3 Partial capture
10-03 19:12 60m -12 / -9 OZ4VV -9 / -17 6 ✓ Full exchange observed
10-03 19:12 60m -14 / -4 HF1Z -1 / -8 5 ✓ Full exchange observed
10-03 18:35 60m - / - DG2KW +7 / - 2 Partial capture
10-03 18:33 60m -22 / - LZ2VQ - / -16 2 Partial capture
10-03 17:49 40m - / -13 HF1Z -8 / - 2 ✓ Closing fragment
10-03 16:17 40m -6 / -4 RA3RFY -3 / -13 5 ✓ Full exchange observed
10-03 04:59 40m -16 / - IZ1JLP - / -19 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
161515  -8 2308  BA7IWL R3DFS RR73 (x2)
161600  +2 2308  R3DFS DK3JW JN67 (x3)
170545 -16 2068  BI3UPU R3DFS -20 (x3)
170845 -14 2069  TA2YYM R3DFS -13
170930  -6  650  R3DFS TA2YYM R-06
170945  -9 2068  TA2YYM R3DFS RR73
171000  -7 2397  R3DFS UA9SHH R-18
044230 -11 2009  R3KAB R3DFS -02 (x2)
045045 -12  473  R3DFS R3KAB R+04
160m
UTC    dB Audio  Message
181645 -18 1195  R3DFS UA4CKN -20
182245  -2 1854  R3DFS R2SDZ 73
182745  +8 1017  R3DFS RK6MC KN97 (x3)
190645 -14 1944  R3DFS R5AV -03 (x2)
191245  -3 1850  R3DFS YL2EA R-17 (x2)
183430 -11 1559  R3DFS UG4L R-11 (x2)
183830  -2 1966  R3DFS UA4FKT R-10 (x3)
184300  -8 1631  R3DFS RZ6BS KN96
60m
UTC    dB Audio  Message
183400  -7 1427  R3DFS OE9GWV JN47
183415 +15  317  R3DFS DF7EF JO30 (x14)
80m
UTC    dB Audio  Message
175645  -1 2466  R3DFS R3YH 73
175830 -22 1583  YU1EW R3DFS -12
175945  +0 1638  R3DFS YU1EW R-15 (x2)
180015  +2 2697  R3DFS RA3LCW KO64
180045  -7 1580  R3DFS UA3ZUX KO90
180045  +2 2696  R3DFS RA3LCW KO64
180115  -4 1579  R3DFS UA3ZUX R-05
180115 -14 2210  R3DFS RV3YN KO73
180145  -5 1579  R3DFS UA3ZUX 73
180600 -12 1582  LZ2XA R3DFS -10
180800  -3 1582  LZ2KTS R3DFS -12
181215 -19 1582  RK6OQ R3DFS -10
181245 -16 1582  EX8BT R3DFS -16 (x2)
20m
UTC    dB Audio  Message
055700 -19 1639  VK5LSD R3DFS -20
060030 -20 1639  CQ R3DFS KO96                         a1
060245 -13 1640  R3DFS PD3LKN JO22
060245  -2 1844  R3DFS PD2WL -15
060315 -13 1640  R3DFS PD3LKN JO22
060315  -2 1844  R3DFS PD2WL -15
060345 -16 1639  R3DFS PD3LKN JO22
060345  +4 1844  R3DFS PD2WL -15 (x2)
060500 -12 1981  PD2WL R3DFS R-14
060515  -1 1844  R3DFS PD2WL -15 (x4)
061100  -8 2298  PD3LKN R3DFS -13

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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