RW4F — 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: LO23

Receiver-side FT8 activity involving RW4F, decoded by SO8OO in southeastern Poland. 1,187 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 58 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-10-18.

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 1,187 FT8 messages attributed to RW4F as the transmitting token by decoded message structure across 58 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (51%), followed by 20 m (42%) and 10 m (6%). Most decodes (77%) 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 -9 dB.

Overview

1,187
Messages attributed
58
UTC dates decoded
272
Active 15-min windows
-9 dB
Estimated median S/N

Bands

First attributed message: 2026-06-07
Last attributed message: 2026-10-18 17:29 UTC

Observed FT8 message patterns

Attributed sample
1,187 messages
Active dates
58 UTC dates
Estimated median S/N
-9 dB
Estimated 10th-90th percentile
-17 to +2.5 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 166, moderate (-15 to -9 dB) 470, strong (≥ -8 dB) 551.

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 RW4F

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
LO23 · 565 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,639 km (approx.)
Last such locator decoded
2026-10-18 17:29 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 UTCBandRW4F S/NCounterpartCounterpart S/NMsgsCapture
10-18 17:30 80m - / - R1BQR -20 / - 2 Partial capture
10-18 17:26 80m -16 / - R4FDK -13 / +6 4 ✓ Closing observed
10-18 17:25 80m -14 / - R4SCQ - / -12 2 ✓ Closing fragment
10-17 19:32 80m -12 / +7 OH8JP -2 / -2 4 ✓ Full exchange observed
10-17 19:24 80m - / - R3WBG -16 / - 2 ✓ Closing fragment
10-17 17:28 80m - / - R3BCK +1 / - 6 Partial capture
10-17 17:27 80m -21 / +8 RU4HU -13 / - 3 ✓ Closing observed
10-17 17:26 80m - / - DL2SUD/QRP -3 / - 6 Partial capture
10-17 17:26 80m -14 / -4 R1BED -11 / -16 2 Partial capture
10-17 17:20 80m - / +4 8S2A -12 / - 2 Partial capture
10-17 17:18 80m -10 / -5 YT7DX +8 / -14 4 ✓ Full exchange observed
10-17 17:16 80m - / -10 R2DYC +1 / - 3 ✓ Closing fragment
10-17 17:14 80m - / -14 UA3VFL -7 / - 2 ✓ Closing fragment
10-16 17:12 40m - / -11 R6FFB +9 / - 2 ✓ Closing fragment
10-14 21:51 80m -12 / - R80SAA +6 / - 2 ✓ Closing observed
10-14 19:57 80m - / -12 DO1ID +7 / - 3 Partial capture
10-14 19:53 80m -8 / - R2BPS - / -16 3 ✓ Closing fragment
10-14 19:47 80m - / +5 R6AR -14 / - 2 ✓ Closing fragment
10-14 19:38 80m - / -9 IK5SRB +7 / - 3 ✓ Closing fragment
10-14 19:28 80m -8 / - TF4M - / -20 3 ✓ Closing fragment
10-14 17:29 80m -15 / -5 R3QX -11 / - 3 ✓ Closing observed
10-14 17:03 80m -11 / -12 R4CC -2 / - 3 ✓ Closing observed
10-14 17:02 80m -13 / -16 R1BLO/P -16 / - 3 ✓ Closing observed
10-14 17:02 80m - / - OK8AW +12 / - 2 Partial capture
10-14 16:59 80m -12 / -6 R7HL -8 / -7 5 ✓ Full exchange observed
10-13 20:28 40m - / -9 UN0GY -14 / - 3 ✓ Closing fragment
10-13 19:41 80m - / -2 RA9YTI -8 / - 2 ✓ Closing fragment
10-13 19:11 80m - / -9 OH2BVT -2 / - 2 ✓ Closing fragment
10-13 19:07 80m -13 / - JF8QNF - / -15 3 Partial capture
10-13 19:02 80m -5 / -10 EU2NS -5 / -8 5 ✓ Full exchange observed
10-13 18:42 80m - / -14 DL1SUZ +3 / - 2 ✓ Closing fragment
10-13 18:39 80m -12 / - R6TA - / -9 3 ✓ Closing fragment
10-13 18:22 80m -15 / - UA9JGS - / -22 3 ✓ Closing fragment
10-13 18:05 80m - / -2 R7ZY -8 / - 2 ✓ Closing fragment
10-12 21:30 40m - / -12 HB9BLQ -15 / - 3 Partial capture
10-12 15:32 40m - / -11 R1NBG -5 / - 2 ✓ Closing fragment
10-12 15:31 40m - / -14 R9LY -10 / - 2 ✓ Closing fragment
10-12 15:29 40m - / -10 RM1B -10 / - 2 ✓ Closing fragment
10-12 15:08 40m - / -11 RA3LBW -1 / - 2 ✓ Closing fragment
10-12 14:53 40m - / -15 DL3KWF -14 / - 2 ✓ Closing fragment
10-12 13:22 40m - / 0 RA5AD -21 / - 2 ✓ Closing fragment
10-11 20:00 80m -15 / +6 R5AV +1 / +6 2 Partial capture
10-10 20:03 40m - / -6 4X5JK -4 / - 2 ✓ Closing fragment
10-10 19:27 80m -8 / - HA5CPN - / -13 3 ✓ Closing fragment
10-10 19:16 80m -2 / -15 9A9N -2 / -13 5 ✓ Full exchange observed
10-10 18:05 80m -10 / - RX3MX - / -9 2 ✓ Closing fragment
10-10 18:03 80m -6 / - RN3TT - / +9 3 ✓ Closing fragment
10-10 17:30 80m - / -17 RX1AB -6 / - 8 ✓ Closing fragment
10-10 17:25 80m -8 / +4 RD4WM -16 / 0 4 ✓ Full exchange observed
10-10 17:21 80m -6 / - R7IW - / -8 2 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

80m
UTC    dB Audio  Message
193215  -3 1114  RW4F OH8JP +07
193230  -9  558  OH8JP RW4F R-02
193245  +0 1114  RW4F OH8JP RR73
193300 -14  558  OH8JP RW4F 73
172515 -13  751  R4SCQ RW4F R-12 (x2)
172615 -15  751  CQ RW4F LO23
172630 -11  751  RW4F R4FDK LO23
172645 -18  752  R4FDK RW4F +06 (x2)
172730 -15  752  RW4F R4FDK 73
172815 -10  751  R8AC RW4F LO23
172945 -14  751  CQ RW4F LO23
173000 -17  752  RW4F R1BQR KO59 (x2)
40m
UTC    dB Audio  Message
153100  -9 1292  RW4F R9LY -14 (x2)
153230  -2  440  RW4F R1NBG -11 (x2)
213000 -15 1490  RW4F HB9BLQ -12 (x3)
202830 -14 2408  RW4F UN0GY -09 (x3)
171215 +12 2524  RW4F R6FFB -11 (x2)
171430 -16 2610  RW4F R6FGF RR73
171930  -1 2339  RW4F IQ4JO -17
182500  +2 2010  RW4F YO3FRI RR73
20m
UTC    dB Audio  Message
105230  -3  546  RW4F R70OBN -18 (x2)
124045 -17  947  RZ3Z/P RW4F 73
180800  -4  864  RW4F CT1ISH +00 (x2)
181130  -8  575  RW4F 4U1GSC +00
181615 -17  920  JE6QUO RW4F R-08
162845 -17 1272  E77FN RW4F LO23
070700 -15 1181  RA3WEO RW4F 73
070730 -18 1181  OH0ERF RW4F LO23
144300 -10  705  <...> RW4F LO23
144315  -8  820  RW4F F4LHR/P -01
144330 -11  704  <...> RW4F R+06
144445 -21 1192  RW4F TA3ZGR RR73
144630 -16  703  EW4DX RW4F RR73

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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