OL900JAR — reception at SO8OO
Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.
FT8 activity
Receiver-side FT8 activity involving OL900JAR, decoded by SO8OO in southeastern Poland. 1,232 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, across 16 UTC dates in the available aggregate history. Observed between 2026-06-20 and 2026-10-06.
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 1,232 FT8 messages attributed to OL900JAR as the transmitting token by decoded message structure across 16 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (68%), followed by 40 m (23%) and 60 m (6%). Most decodes (95%) fell within the six-hour window 17:00-23:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (81%); the estimated median was +0.5 dB.
Overview
Bands
Last attributed message: 2026-10-06 11:24 UTC
Observed FT8 message patterns
- Attributed sample
- 1,232 messages
- Active dates
- 16 UTC dates
- Estimated median S/N
- +0.5 dB
- Estimated 10th-90th percentile
- -13 to +9 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 83, moderate (-15 to -9 dB) 145, strong (≥ -8 dB) 1,004.
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.
Frequent counterpart tokens observed at SO8OO
Tokens most often paired with OL900JAR in decoded directed-looking exchanges:
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.
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 UTC | Band | OL900JAR S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-16 17:33 | 40m | - / -17 | YT1DDL | -8 / - | 2 | Partial capture |
| 10-16 17:21 | 40m | - / -19 | F5MOO | +9 / - | 3 | Partial capture |
| 10-16 17:15 | 40m | - / - | YT1DDL | -9 / - | 3 | Partial capture |
| 10-16 07:59 | 40m | - / - | S57CT | -8 / - | 2 | Partial capture |
| 10-16 07:48 | 40m | - / -7 | IQ4JO | -6 / - | 2 | Partial capture |
| 10-16 07:32 | 40m | - / +6 | OE4RGC | -8 / - | 3 | Partial capture |
| 10-16 07:24 | 40m | - / - | DL3BQV | -1 / - | 8 | Partial capture |
| 10-07 02:36 | 80m | - / - | R4FDD | -13 / - | 2 | Partial capture |
| 10-07 00:33 | 40m | - / - | PD0IFI | -21 / - | 3 | Partial capture |
| 10-06 23:43 | 40m | - / -17 | EC1ALT | -9 / - | 2 | Partial capture |
| 10-06 23:38 | 40m | - / -23 | IK2GZU | -20 / - | 4 | Partial capture |
| 10-06 20:19 | 80m | - / - | EA7LIC | -14 / - | 2 | Partial capture |
| 10-06 19:44 | 80m | - / - | DA6YY | -5 / - | 3 | Partial capture |
| 10-06 14:24 | 40m | - / -4 | YT7DX | +3 / - | 6 | Partial capture |
| 10-06 11:24 | 40m | -24 / -7 | S55OO | -13 / -6 | 2 | Partial capture |
| 10-06 11:23 | 40m | -23 / - | <...> | - / - | 2 | Partial capture |
| 10-06 11:21 | 40m | - / -4 | SP2KW | -10 / - | 6 | Partial capture |
| 10-06 06:33 | 80m | -6 / - | <...> | -7 / - | 2 | ✓ Closing fragment |
| 10-06 06:30 | 80m | -8 / -6 | DA1ST | -10 / +5 | 7 | Partial capture |
| 10-06 06:24 | 80m | -8 / - | <...> | -8 / - | 7 | ✓ Closing fragment |
| 10-06 06:21 | 80m | -9 / - | DL8TV | - / - | 5 | Partial capture |
| 10-06 06:18 | 80m | -7 / - | <...> | -12 / - | 4 | ✓ Closing fragment |
| 10-06 06:17 | 80m | -7 / -14 | PA3CPS | -16 / +3 | 3 | Partial capture |
| 09-27 20:18 | 80m | - / -11 | G0THY | -17 / - | 5 | Partial capture |
| 09-27 18:37 | 80m | - / -2 | OK3NKO | +12 / - | 2 | Partial capture |
| 09-27 17:07 | 80m | - / +1 | S51SU | -6 / - | 2 | Partial capture |
| 09-27 06:21 | 80m | - / - | DO1BWS | -11 / - | 9 | Partial capture |
| 09-27 04:16 | 80m | - / - | YO5EEE | -10 / - | 2 | Partial capture |
| 09-27 04:10 | 80m | - / - | YO5EEE | -10 / - | 2 | Partial capture |
| 09-27 04:01 | 80m | - / - | YO5EEE | -9 / - | 3 | Partial capture |
| 09-27 01:52 | 80m | - / - | UA4FKT | +15 / - | 3 | Partial capture |
| 09-27 00:58 | 80m | - / +2 | F5RRS | -13 / - | 3 | Partial capture |
| 09-26 22:54 | 80m | - / -16 | F5RRS | +4 / - | 7 | Partial capture |
| 09-26 21:09 | 80m | - / +2 | R2FC | -1 / - | 2 | Partial capture |
| 09-26 21:01 | 80m | - / -12 | RW1CW | +2 / - | 2 | Partial capture |
| 09-26 21:00 | 80m | -3 / - | EU1AFX | - / +6 | 4 | Partial capture |
| 09-26 20:59 | 80m | 0 / - | <...> | +2 / - | 6 | ✓ Closing fragment |
| 09-26 20:59 | 80m | - / -6 | DL3RDO | +4 / - | 2 | Partial capture |
| 09-26 20:58 | 80m | -1 / - | DL1DH | -6 / -7 | 2 | Partial capture |
| 09-26 20:55 | 80m | +4 / - | <...> | -4 / - | 4 | ✓ Closing fragment |
| 09-26 20:53 | 80m | 0 / -6 | LA4NM | 0 / +7 | 6 | Partial capture |
| 09-26 20:48 | 80m | -2 / - | SM5UYV | -4 / +1 | 8 | Partial capture |
| 09-26 20:48 | 80m | -5 / - | OZ5AGJ | -4 / -1 | 4 | Partial capture |
| 09-26 20:46 | 80m | -3 / - | <...> | +6 / - | 2 | ✓ Closing fragment |
| 09-26 20:45 | 80m | -3 / -11 | YT5DL | +12 / +6 | 4 | Partial capture |
| 09-26 20:39 | 80m | -21 / - | DA6YY | - / - | 2 | Partial capture |
| 09-26 20:35 | 80m | -8 / - | <...> | - / - | 2 | Partial capture |
| 09-26 20:33 | 80m | -10 / -8 | OK1ACE | +9 / - | 7 | Partial capture |
| 09-26 20:20 | 80m | -16 / - | <...> | - / - | 4 | Partial capture |
| 09-26 20:18 | 80m | - / -12 | SP4KR | -12 / - | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 074830 -4 2433 OL900JAR IQ4JO R-07 075530 -1 1272 OL900JAR <...> 73 (x2) 075930 -7 1462 OL900JAR S57CT JN76 (x2) 153715 -16 1458 OL900JAR SQ5NO JO92 171530 -10 1459 OL900JAR YT1DDL KN04 (x3) 172100 +9 2438 OL900JAR F5MOO JN07 (x3) 173315 -7 1459 OL900JAR YT1DDL KN04 173330 -9 1273 OL900JAR RM5F KO85 173345 -8 1459 OL900JAR YT1DDL R-17
UTC dB Audio Message 063300 -8 1758 DA1ST OL900JAR +05 063315 -7 1758 OL900JAR DA1ST R-06 063330 -6 1758 <...> OL900JAR RRR 063345 -7 1758 OL900JAR <...> 73 063500 -14 1759 DM5CF OL900JAR +00 063530 -7 1761 CQ OL900JAR 194445 -4 1758 OL900JAR DA6YY JO52 (x3) 201945 -16 1850 OL900JAR EA7LIC IM86 (x2) 225345 -5 1847 OL900JAR EC5M -14 023615 -14 1755 OL900JAR R4FDD LO33 (x3)
UTC dB Audio Message 133545 -19 1494 OL900JAR <...> 73 (x3) 145315 -2 2216 OL900JAR RX3VF LO06 (x3) 145445 -7 2217 OL900JAR <...> 73 (x4) 190015 -4 2180 OL900JAR R4HEA LO53 (x2) 191715 -12 2266 OL900JAR <...> 73 (x3)
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.
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