R9FFJ — 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: LO76

Receiver-side FT8 activity involving R9FFJ, decoded by SO8OO in southeastern Poland. 721 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 52 UTC dates in the available aggregate history. Observed between 2026-06-12 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 721 FT8 messages attributed to R9FFJ as the transmitting token by decoded message structure across 52 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (65%), followed by 40 m (19%) and 20 m (17%). Most decodes (83%) 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 -12.4 dB.

Overview

721
Messages attributed
52
UTC dates decoded
182
Active 15-min windows
-12.4 dB
Estimated median S/N

Bands

First attributed message: 2026-06-12
Last attributed message: 2026-10-22 21:36 UTC

Observed FT8 message patterns

Attributed sample
721 messages
Active dates
52 UTC dates
Estimated median S/N
-12.4 dB
Estimated 10th-90th percentile
-20 to -5.5 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 211, moderate (-15 to -9 dB) 355, strong (≥ -8 dB) 155.

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 R9FFJ

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
LO76 · 444 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
2,302 km (approx.)
Last such locator decoded
2026-10-22 21:36 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 UTCBandR9FFJ S/NCounterpartCounterpart S/NMsgsCapture
10-22 21:36 80m -2 / - RN3YN - / - 2 Partial capture
10-22 21:30 80m -4 / - RN3YN - / - 3 Partial capture
10-22 19:21 40m -12 / - R1QF/P - / -7 3 Partial capture
10-22 19:13 40m -16 / - RA6ABO - / - 2 Partial capture
10-22 19:07 40m -13 / - R3DCM - / -10 4 ✓ Closing fragment
10-22 17:11 40m - / - M0IEP -7 / - 4 Partial capture
10-22 17:06 40m - / -8 R3DID -4 / - 2 ✓ Closing fragment
10-22 16:57 40m - / - UT3ED -17 / - 5 Partial capture
10-22 16:50 40m -11 / - R4ADD - / +1 3 Partial capture
10-22 16:49 40m -6 / - RA9SOZ - / - 3 Partial capture
10-22 16:37 40m -11 / -7 R6FML -20 / - 3 ✓ Closing observed
10-22 16:28 80m -10 / -5 RA3BQ +1 / -9 4 ✓ Full exchange observed
10-22 16:25 80m -9 / - R4DB - / - 3 Partial capture
10-22 16:23 80m -9 / -3 R2HD -12 / -5 6 ✓ Full exchange observed
10-22 16:22 80m -12 / - R8AEZ - / 0 3 ✓ Closing fragment
10-22 16:21 80m -9 / - R9SCJ - / -7 2 Partial capture
10-22 16:16 80m -10 / - R8LBV - / -7 3 Partial capture
10-22 16:13 80m -8 / - RA8CO - / -9 4 ✓ Closing fragment
10-22 16:07 80m -12 / - R0ADK - / - 4 Partial capture
10-22 16:06 80m -5 / - UA3QQG - / -8 2 ✓ Closing fragment
10-22 16:05 80m -5 / - RZ0SW - / -13 2 ✓ Closing fragment
10-22 16:03 80m -9 / - R9UBP - / -11 3 ✓ Closing fragment
10-22 16:00 80m -11 / - R0ADK - / - 5 Partial capture
10-22 15:40 40m -12 / - RA1TL -3 / -3 5 ✓ Closing observed
10-22 15:38 40m -4 / - UC8S - / - 2 Partial capture
10-22 15:37 40m -7 / - RV3F +2 / - 3 ✓ Closing observed
10-22 15:33 40m - / -14 DL1SWB 0 / - 2 ✓ Closing fragment
10-22 13:18 40m - / +8 RD6OX +1 / - 2 ✓ Closing fragment
10-17 19:14 40m - / -18 R9CS/P -6 / - 2 ✓ Closing fragment
10-17 18:53 40m - / -1 RT8T -14 / - 2 ✓ Closing fragment
10-16 20:29 80m -12 / - R2EA/P - / - 2 Partial capture
10-16 20:04 40m -6 / - RV1A - / -16 2 ✓ Closing fragment
10-16 20:03 40m - / - M0IEP -12 / - 2 Partial capture
10-16 19:53 80m -8 / - R2EA/P - / - 5 Partial capture
10-15 18:52 80m -12 / - R3XBV - / - 5 Partial capture
10-15 18:32 80m -6 / - RG6OR - / - 3 Partial capture
10-15 18:23 80m -8 / - R2EA/P - / - 5 Partial capture
10-15 18:16 80m -12 / - R2EA/P - / - 2 Partial capture
10-15 17:22 80m - / -5 R5BM/M -5 / - 3 Partial capture
10-15 17:11 80m -22 / -9 RW3VR +1 / - 4 ✓ Closing observed
10-15 17:10 80m -19 / -1 RM1O +4 / 0 4 ✓ Full exchange observed
10-14 18:33 80m - / -15 R9CS/P -6 / - 2 ✓ Closing fragment
10-14 17:54 80m -20 / - R9CS/P - / - 4 Partial capture
10-14 17:11 80m - / -7 RN3RY -10 / - 2 ✓ Closing fragment
10-13 18:01 80m -10 / - UN7LAN - / -2 2 ✓ Closing fragment
10-13 17:59 80m -10 / -3 OZ1HPS +2 / -13 6 ✓ Full exchange observed
10-13 17:56 80m -11 / - TF/PD9DX - / - 6 Partial capture
10-12 19:28 160m - / -16 UA4FKT -2 / - 2 ✓ Closing fragment
10-10 13:11 40m - / - PE9JAN -10 / - 2 Partial capture
10-08 14:46 80m - / -6 RZ6DZ -13 / - 3 Partial capture

Recent FT8 messages decoded at SO8OO

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

80m
UTC    dB Audio  Message
162545  -8 2658  R4DB R9FFJ LO76 (x2)
162630 -13 1995  R9FFJ R2HD -03
162645  -8 2658  R2HD R9FFJ R-05
162700 -11 1995  R9FFJ R2HD RR73
162800  -1 2528  R9FFJ RA3BQ -05
162815 -10 2658  RA3BQ R9FFJ R-09
162830  +3 2528  R9FFJ RA3BQ RR73
162845 -10 2657  RA3BQ R9FFJ 73
163115 -12 2658  R4DB R9FFJ LO76
213045  -3 2402  RN3YN R9FFJ LO76 (x5)
40m
UTC    dB Audio  Message
171200  -7 2134  R9FFJ M0IEP IO91 (x3)
185730 -13 2691  UB2FDL R9FFJ LO76
190730 -15 2434  R3DCM R9FFJ LO76 (x4)
190930 -16 2433  UB3BHW R9FFJ LO76
191300 -15 2434  RA6ABO R9FFJ LO76 (x2)
192115 -16 2434  RA2FKD R9FFJ 73
192145 -13 2434  R1QF/P R9FFJ LO76 (x3)
10m
UTC    dB Audio  Message
084730 -24 1472  R9FFJ F5BZB RR73
160m
UTC    dB Audio  Message
181530  -9  729  R9FFJ UA9FFV -13 (x3)
182045 -12 2208  R9FFJ RW4W RR73
182215  -5 1573  R9FFJ RA9AJ MO05 (x3)
152230  +9 2558  R9FFJ RY3K -18 (x2)
152400 -20 2119  R9FFJ UA4PPQ R-07 (x2)
152830  +7  996  R9FFJ RA3QTT -15 (x2)
192845  +1  557  R9FFJ UA4FKT R-16 (x2)
20m
UTC    dB Audio  Message
091715 -15 1218  RA0ZIH R9FFJ R-08 (x3)
092015 -13 1217  RI1FJL R9FFJ LO76
093000  -5 1217  R9FFJ UA3AIU -07 (x2)
123130 -19 1822  R9FFJ R9OBJ/P RR73
142230 -16 1939  R9FFJ RD0L -07
132700 -12 1766  RM6OS R9FFJ LO76 (x3)
043945 -14 1963  RL4R R9FFJ LO76
095245  +9 2854  R9FFJ RN3PD -13 (x2)
171630  -6 2872  R9FFJ R2FC -05

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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