UA3ROJ — 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: LO02

Receiver-side FT8 activity involving UA3ROJ, decoded by SO8OO in southeastern Poland. 331 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 14 UTC dates in the available aggregate history. Observed between 2026-08-03 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 331 FT8 messages attributed to UA3ROJ as the transmitting token by decoded message structure across 14 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (73%), followed by 80 m (26%) and 20 m (2%). Most decodes (90%) fell within the six-hour window 16:00-22:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (67%); the estimated median was -6 dB.

Overview

331
Messages attributed
14
UTC dates decoded
37
Active 15-min windows
-6 dB
Estimated median S/N

Bands

First attributed message: 2026-08-03
Last attributed message: 2026-10-11 19:53 UTC

Observed FT8 message patterns

Attributed sample
331 messages
Active dates
14 UTC dates
Estimated median S/N
-6 dB
Estimated 10th-90th percentile
-13 to +2 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 12, moderate (-15 to -9 dB) 98, strong (≥ -8 dB) 221.

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 UA3ROJ

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
LO02 · 93 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,363 km (approx.)
Last such locator decoded
2026-10-11 19:53 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 UTCBandUA3ROJ S/NCounterpartCounterpart S/NMsgsCapture
10-11 19:51 40m -3 / -3 GJ0KYZ -6 / - 4 ✓ Closing observed
10-11 19:50 40m -4 / - PA8DC - / -10 2 ✓ Closing fragment
10-11 19:46 40m -1 / - SP9IML - / -15 3 ✓ Closing fragment
10-11 19:45 40m +2 / - LX1RFJ - / -16 2 Partial capture
10-11 19:44 40m +3 / - RX6ACR - / -9 2 ✓ Closing fragment
10-11 19:40 40m +2 / - BG0FQU - / -14 4 ✓ Closing fragment
10-11 19:39 40m 0 / -16 F4LHL -3 / -13 9 ✓ Full exchange observed
10-11 19:35 40m -3 / - RA3X - / -7 5 ✓ Closing fragment
10-11 19:31 40m -6 / -18 TA1CQ -3 / -5 5 ✓ Full exchange observed
10-10 21:38 80m +1 / -13 EC5M -4 / - 3 ✓ Closing observed
10-10 21:37 80m -1 / -12 F4IVG +2 / - 4 ✓ Closing observed
10-10 21:37 80m +2 / - JU2RWG/P - / -14 2 Partial capture
10-10 21:34 80m 0 / -10 RU3DK +4 / -12 4 ✓ Full exchange observed
10-10 21:33 80m -1 / -10 PE1NAO -6 / - 3 ✓ Closing observed
10-10 21:31 80m +2 / -5 DL7KB -4 / -11 3 ✓ Full exchange observed
10-10 21:30 80m +2 / 0 YO3AI -5 / - 3 ✓ Closing observed
10-10 21:26 80m - / - RM5F -2 / - 2 ✓ Closing fragment
10-10 21:25 80m - / -7 EA5FDA -13 / - 2 ✓ Closing fragment
10-10 13:49 40m -14 / - R3TAR - / -1 2 ✓ Closing fragment
10-09 16:57 40m -9 / -4 HB9ELE +13 / -6 2 Partial capture
10-09 16:56 40m -10 / - R6YG -6 / - 3 ✓ Closing observed
10-09 16:55 40m -12 / -7 II5GG +1 / -14 3 ✓ Full exchange observed
10-06 19:02 80m -6 / -2 YO3JW -14 / - 2 ✓ Closing observed
10-06 19:00 80m -8 / -17 AM5CV -4 / -7 4 ✓ Full exchange observed
10-06 18:56 80m - / -18 RA6FYL -18 / - 2 Partial capture
10-06 18:56 80m - / +1 R2SN -7 / - 4 Partial capture
10-06 18:53 80m -4 / -1 EW8AAC -18 / -6 3 ✓ Full exchange observed
10-06 18:52 80m -10 / +7 R3LDK -2 / - 3 ✓ Closing observed
10-06 18:49 80m - / -5 UC6D +5 / - 4 ✓ Closing fragment
10-06 18:48 80m - / -4 LZ936BA -6 / - 2 Partial capture
10-04 18:12 40m - / +4 RW6B -7 / - 2 Partial capture
10-04 18:09 40m - / - R6DZR -1 / - 3 ✓ Closing fragment
10-04 17:46 40m -5 / - R6TA - / -1 2 ✓ Closing fragment
10-04 17:44 40m -7 / -6 F6FHZ -12 / -23 5 ✓ Full exchange observed
10-04 17:41 40m -8 / -1 UA1ALY -23 / -14 3 ✓ Full exchange observed
10-04 17:37 40m - / -15 OZ9FF 0 / - 2 ✓ Closing fragment
10-01 20:06 40m +2 / - IN3IZQ -7 / -17 2 Partial capture
10-01 20:03 40m -12 / - OV5SP -24 / -12 3 ✓ Closing observed
10-01 20:03 40m - / - RD3FY +4 / - 4 Partial capture
10-01 20:00 40m -6 / -10 G0HZG -20 / -14 5 ✓ Full exchange observed
10-01 19:59 40m -6 / -5 RA1AGJ -16 / -2 4 ✓ Full exchange observed
10-01 19:57 40m -6 / - UB1AUW - / -19 3 ✓ Closing fragment
10-01 19:56 40m +4 / - SQ8ESR - / - 2 ✓ Closing fragment
10-01 19:45 40m -4 / - G1GNQ - / -15 2 ✓ Closing fragment
10-01 19:00 40m - / -8 GM0SDV -13 / - 4 Partial capture
10-01 18:56 40m -3 / - TA9EN - / -16 2 ✓ Closing fragment
10-01 18:54 40m -10 / - A41ED - / -13 2 ✓ Closing fragment
10-01 18:44 40m -5 / - BA8BLK - / -19 3 ✓ Closing fragment
10-01 18:42 40m -4 / - SQ4INW - / -7 2 ✓ Closing fragment
10-01 18:40 40m - / - HB9ZHK -14 / - 3 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m
UTC    dB Audio  Message
194615  -1 2468  JA8JAK UA3ROJ -16
194645  +0 2468  SP9IML UA3ROJ -15 (x3)
194915  -1 2468  CQ UA3ROJ LO02
195015  -3 2468  PA8DC UA3ROJ -10 (x2)
195115  +0 2468  CQ UA3ROJ LO02
195130  -6 2468  UA3ROJ GJ0KYZ -03
195145  -1 2468  CQ UA3ROJ LO02
195200  -4 2468  UA3ROJ GJ0KYZ -03 (x2)
195245  -3  877  GJ0KYZ UA3ROJ 73
195315  -6  877  CQ UA3ROJ LO02
195330 -24 2139  UA3ROJ DB7SX JO62
80m
UTC    dB Audio  Message
213345  -7 1445  UA3ROJ PE1NAO 73
213415  +3 2220  UA3ROJ RU3DK -10
213430  -1 2222  RU3DK UA3ROJ R-12
213445  +4 2221  UA3ROJ RU3DK RR73
213500  +2 2222  RU3DK UA3ROJ 73
213600  +6 2222  IQ2AAH UA3ROJ -12
213700  +3 2222  JU2RWG/P UA3ROJ -14
213715  +4 2250  UA3ROJ F4IVG R-12
213730  +1 2223  JU2RWG/P UA3ROJ -14
213745  +1 2251  UA3ROJ F4IVG R-12
213800  -1 2221  F4IVG UA3ROJ RR73
213815  +1 2250  UA3ROJ F4IVG 73
213845  -5 1128  UA3ROJ EC5M R-13
213900  +1 2222  EC5M UA3ROJ RR73
213915  -3 1128  UA3ROJ EC5M 73
10m
UTC    dB Audio  Message
111000  +1  567  UA3ROJ SV2CLJ R-12 (x2)
081230 -23 1703  UA3ROJ EX7CQ R+27 (x2)
20m
UTC    dB Audio  Message
054415  -8  489  T77BL UA3ROJ -13 (x3)
054745 -10  469  9A5MP UA3ROJ -15 (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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