OH5RM — 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 OH5RM, decoded by SO8OO in southeastern Poland. 15 FT8 messages attributed to this token as transmitter, on 80m, 40m, across 6 UTC dates in the available aggregate history. Observed between 2026-08-03 and 2026-10-01.
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 15 FT8 messages attributed to OH5RM as the transmitting token by decoded message structure across 6 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (87%), followed by 80 m (13%). In this small sample, the estimated median decoder S/N was -16 dB; no usual signal pattern is inferred.
Overview
Bands
Last attributed message: 2026-10-01 09:15 UTC
Observed FT8 message patterns
- Attributed sample
- 15 messages
- Active dates
- 6 UTC dates
- Estimated median S/N
- -16 dB
- S/N percentile sample
- Too small
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 8, moderate (-15 to -9 dB) 6, strong (≥ -8 dB) 1.
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. The sample does not meet the threshold for a recurring time or signal-pattern claim (20 attributed messages, three UTC dates and five distinct 15-minute windows).
Frequent counterpart tokens observed at SO8OO
Tokens most often paired with OH5RM 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.
Most frequent locator attributed to OH5RM
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
- KP41 · 9 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,361 km (approx.)
- Last such locator decoded
- 2026-10-01 09:15 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 UTC | Band | OH5RM S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 11-03 09:55 | 40m | - / -13 | UT0IN | -10 / - | 2 | ✓ Closing fragment |
| 10-28 13:11 | 10m | - / -20 | TN8GD | -5 / - | 3 | ✓ Closing fragment |
| 10-01 09:14 | 40m | -10 / - | OH2CUB/P | - / - | 2 | Partial capture |
| 09-14 14:01 | 40m | -17 / - | OH2CGU/P | - / 0 | 5 | ✓ Closing fragment |
| 09-12 13:37 | 40m | -12 / - | OH2DJY | -14 / - | 2 | Partial capture |
| 09-03 07:35 | 40m | -22 / - | OH2CUB/P | - / +4 | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 073445 -18 1876 <...> OH5RM R+06 073545 -21 1876 OH2CUB/P OH5RM KP41 (x2) 132745 -23 2155 OG3E OH5RM R-25 133745 -12 2233 OH2DJY OH5RM KP41 133830 -14 2539 OH5RM OH2DJY +11 140145 -19 2172 OH2CGU/P OH5RM KP41 (x5) 091430 -11 2576 OH2CUB/P OH5RM KP41 (x2) 095530 -9 1548 OH5RM UT0IN -13 (x2)
UTC dB Audio Message 131100 -11 802 OH5RM TN8GD -20 (x3)
UTC dB Audio Message 163930 -9 483 OH5RM XU7O 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.
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