RJ3T — 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: LO26

Receiver-side FT8 activity involving RJ3T, decoded by SO8OO in southeastern Poland. 696 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, across 23 UTC dates in the available aggregate history. Observed between 2026-06-12 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 696 FT8 messages attributed to RJ3T as the transmitting token by decoded message structure across 23 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (73%), followed by 40 m (21%) and 20 m (4%). Most decodes (95%) 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 -12.9 dB.

Overview

696
Messages attributed
23
UTC dates decoded
132
Active 15-min windows
-12.9 dB
Estimated median S/N

Bands

First attributed message: 2026-06-12
Last attributed message: 2026-10-18 04:00 UTC

Observed FT8 message patterns

Attributed sample
696 messages
Active dates
23 UTC dates
Estimated median S/N
-12.9 dB
Estimated 10th-90th percentile
-20 to -4.1 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 216, moderate (-15 to -9 dB) 310, strong (≥ -8 dB) 170.

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 RJ3T

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
LO26 · 141 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,698 km (approx.)
Last such locator decoded
2026-10-03 20:12 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 UTCBandRJ3T S/NCounterpartCounterpart S/NMsgsCapture
11-07 05:46 40m - / - RV3F -8 / - 2 ✓ Closing fragment
10-18 07:35 40m - / - SQ8GBG -1 / - 4 Partial capture
10-18 07:28 40m - / -13 R1WBF -10 / - 3 ✓ Closing fragment
10-18 07:26 40m - / +6 R2EG -14 / - 2 ✓ Closing fragment
10-18 04:00 80m -19 / -17 R2BQM -17 / -13 2 Partial capture
10-17 20:01 80m - / -12 R6DVW -2 / - 2 ✓ Closing fragment
10-17 19:43 80m - / -7 UF5F -4 / - 2 ✓ Closing fragment
10-17 19:08 40m -4 / - RT8T - / -3 2 ✓ Closing fragment
10-17 18:55 160m - / -17 R2SDZ 0 / - 2 ✓ Closing fragment
10-17 17:27 80m -19 / -11 UB1AXF -8 / - 3 ✓ Closing observed
10-17 17:06 80m - / -19 UA1CKA +10 / - 2 ✓ Closing fragment
10-17 15:53 160m - / -8 RW3O +1 / - 2 ✓ Closing fragment
10-17 15:38 80m - / -9 UA9CFH -22 / - 2 ✓ Closing fragment
10-17 15:28 80m - / -3 UN2G -20 / - 3 ✓ Closing fragment
10-03 20:30 80m -6 / -15 UA6Q/M +9 / +5 3 Partial capture
10-03 20:26 80m - / -14 OH9FTW +10 / - 2 ✓ Closing fragment
10-03 20:11 80m -14 / - RC3C - / - 3 Partial capture
10-03 20:09 80m -18 / - JH0MXV - / -18 3 Partial capture
10-03 20:07 80m -17 / - JJ2IJU - / -18 3 Partial capture
10-03 20:02 80m -16 / -1 RU3NCW 0 / +8 6 ✓ Full exchange observed
10-03 20:00 80m -17 / - RC3C - / - 3 Partial capture
10-03 19:55 80m -9 / - R3XBB - / -1 3 Partial capture
10-03 16:43 40m -7 / -4 RD5Q -7 / +7 4 ✓ Full exchange observed
10-03 16:40 40m -4 / - RT3K/P - / +5 2 ✓ Closing fragment
10-03 16:39 40m -10 / - R6DZR - / +6 2 ✓ Closing fragment
10-02 20:36 80m -8 / - R2BPS -14 / -6 2 Partial capture
10-02 20:35 80m -15 / -13 R1BZ -12 / -11 5 ✓ Full exchange observed
10-02 20:27 80m -10 / - R2BPS - / -10 2 Partial capture
10-02 20:20 80m -17 / -12 R4DX +4 / - 3 ✓ Full exchange observed
10-02 20:11 80m -14 / - R2GDV - / 0 2 ✓ Closing fragment
10-02 19:58 80m -5 / - RC2DT -8 / +9 3 ✓ Full exchange observed
10-02 19:55 80m -22 / - UB3BDJ - / 0 3 ✓ Closing fragment
10-02 19:46 80m -13 / - RW0LZ - / -2 2 Partial capture
10-02 19:32 80m - / +6 R4HJC -9 / - 2 ✓ Closing fragment
10-02 19:30 80m - / -5 R2DGN +8 / - 2 ✓ Closing fragment
10-02 19:22 80m -8 / - RO2E/M - / 0 2 Partial capture
10-02 19:10 80m -15 / -2 R3TY -11 / - 2 Partial capture
10-02 19:09 80m - / -2 UD1I -6 / - 2 ✓ Closing fragment
10-02 18:56 80m -10 / - R2AL - / - 2 ✓ Closing fragment
10-02 18:55 80m -4 / +1 UA3IDQ -9 / +4 3 ✓ Full exchange observed
10-02 18:32 80m -16 / -15 RA1AGA -14 / +3 3 ✓ Full exchange observed
10-02 18:30 80m - / -6 UB3YFP +2 / - 2 ✓ Closing fragment
10-02 18:26 80m -12 / - UA3PQN - / +3 3 Partial capture
10-02 18:21 80m -2 / - <...> - / - 3 Partial capture
10-02 18:17 80m -10 / -9 UB3YGA +4 / -10 3 ✓ Full exchange observed
10-02 18:06 80m - / 0 R6ODX -4 / - 2 ✓ Closing fragment
10-02 16:13 40m 0 / - RA9UES - / +5 2 ✓ Closing fragment
10-02 16:10 40m -7 / - R9YEQ - / -3 3 Partial capture
10-02 16:08 40m -6 / - RV3O - / - 2 Partial capture
10-02 16:06 40m -5 / - RM9WN - / -2 2 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m
UTC    dB Audio  Message
164415  -6  832  RJ3T RD5Q 73
190815  -5 2661  RT8T RJ3T -03 (x2)
072600 -17 1637  RJ3T R2EG R+06 (x2)
072800 -13  816  RJ3T R1WBF KO46 (x3)
073530  -2 1515  RJ3T SQ8GBG KN09 (x4)
054600  -9 1694  RJ3T RV3F R+11 (x2)
064715  -1  355  RJ3T R6ZL RR73
80m
UTC    dB Audio  Message
165300  -4 2676  RJ3T RD9T R-09
170345 -20  375  RA3XKD RJ3T RR73
170600 +10 2266  RJ3T UA1CKA R-19 (x2)
171800 -19 2203  R3XDT RJ3T -15
172500 -12  859  RJ3T UA3DPM 73
172715 -17 1903  RJ3T UB1AXF R-11
172730 -19 1902  UB1AXF RJ3T RR73
172745  +0 1903  RJ3T UB1AXF 73
194345  -4 1950  RJ3T UF5F R-07 (x2)
200100  -3 1763  RJ3T R6DVW R-12 (x2)
040000 -17 2401  RJ3T R2BQM -17
040015 -19 2400  R2BQM RJ3T R-13
160m
UTC    dB Audio  Message
180015  -8 1243  RJ3T RN3TT 73
180415 +17 2520  RJ3T RZ3DW R-06 (x2)
180715  -7 2638  RJ3T RA3XDX R-13 (x2)
181730 -10 1958  RJ3T RO7A KN95 (x3)
182245  -4 1295  RJ3T R3GO R-13 (x2)
155300  +1 1737  RJ3T RW3O R-08 (x2)
185400 -23 1884  RJ3T RD9M/3 R-24
185530  +2 2079  RJ3T R2SDZ R-17 (x2)
20m
UTC    dB Audio  Message
092830  -3 2485  F5OYA/P RJ3T -13
092915 -13 2565  RJ3T F5OYA/P R-12
093015  -5 2485  R6YBU RJ3T -16 (x4)
093300  -1 2550  UB8CSU RJ3T -09 (x3)
093445 -11 2050  RJ3T UA9CK MO09
093500 -10 2050  UA9CK RJ3T +22
093515 -13 2050  RJ3T UA9CK R+05
093530 -11 2049  UA9CK RJ3T RR73
093545 -11 2049  RJ3T UA9CK 73
093645  -7 2485  R6YBU RJ3T -14

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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