OH3EX — 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 OH3EX, decoded by SO8OO in southeastern Poland. 576 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 10m, across 27 UTC dates in the available aggregate history. Observed between 2026-07-12 and 2026-10-19.
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 576 FT8 messages attributed to OH3EX as the transmitting token by decoded message structure across 27 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (32%), followed by 60 m (30%) and 80 m (28%). Most decodes (65%) fell within the six-hour window 14:00-20:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (78%); the estimated median was -2 dB.
Overview
Bands
Last attributed message: 2026-10-19 05:50 UTC
Observed FT8 message patterns
- Attributed sample
- 576 messages
- Active dates
- 27 UTC dates
- Estimated median S/N
- -2 dB
- Estimated 10th-90th percentile
- -13 to +8.6 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 30, moderate (-15 to -9 dB) 97, strong (≥ -8 dB) 449.
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 OH3EX 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 OH3EX
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
- KP20 · 347 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,192 km (approx.)
- Last such locator decoded
- 2026-10-19 05:50 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 | OH3EX S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-19 05:50 | 80m | 0 / - | OE/DL1JAT | - / -13 | 2 | Partial capture |
| 10-16 17:17 | 40m | +5 / - | F4HSB | -14 / -17 | 4 | Partial capture |
| 10-16 17:16 | 40m | +4 / - | DK1IO/T | - / -8 | 2 | Partial capture |
| 10-16 17:14 | 40m | +3 / - | BD8FWI | - / -20 | 3 | ✓ Closing fragment |
| 10-16 17:12 | 40m | -4 / - | UN0GY | - / -7 | 3 | ✓ Closing fragment |
| 10-16 16:06 | 40m | -6 / - | BI6LWM | - / - | 2 | Partial capture |
| 10-16 16:05 | 40m | 0 / - | JK1ERA | - / -19 | 2 | ✓ Closing fragment |
| 10-16 16:03 | 40m | -5 / - | BG4FRZ | - / -14 | 3 | Partial capture |
| 10-16 16:02 | 40m | -6 / - | BG0FQU | - / -3 | 4 | ✓ Closing fragment |
| 10-16 16:00 | 40m | -1 / - | BG0KD | - / -6 | 3 | ✓ Closing fragment |
| 10-16 06:36 | 60m | -11 / - | K6VHF/HR9 | - / -16 | 6 | Partial capture |
| 10-16 04:27 | 80m | -9 / - | VP2MAW | - / - | 3 | ✓ Closing fragment |
| 10-16 04:03 | 60m | -12 / - | VP2MAW | - / - | 3 | Partial capture |
| 10-14 05:46 | 80m | -13 / -4 | F5RMK | -13 / -15 | 7 | ✓ Full exchange observed |
| 10-13 18:14 | 160m | -14 / - | LY2BNL | -15 / - | 6 | Partial capture |
| 10-13 18:12 | 160m | -18 / -6 | SQ6WA | +2 / -9 | 6 | ✓ Full exchange observed |
| 10-13 18:10 | 160m | -13 / -5 | SP8WB | -4 / - | 3 | ✓ Closing observed |
| 10-13 18:09 | 160m | -19 / -11 | SQ9PBV | +2 / -20 | 3 | ✓ Full exchange observed |
| 10-13 18:06 | 160m | -13 / -8 | OE5RLP | +8 / -15 | 4 | ✓ Full exchange observed |
| 10-13 18:04 | 160m | -10 / -6 | HA5AO | +2 / -5 | 5 | ✓ Full exchange observed |
| 10-13 18:02 | 160m | -15 / -5 | OZ7HAM | -12 / -13 | 4 | ✓ Full exchange observed |
| 10-11 17:34 | 60m | -8 / - | 9H6C | - / - | 5 | Partial capture |
| 10-11 17:18 | 60m | -6 / - | 9H6C | - / - | 4 | Partial capture |
| 10-11 16:01 | 60m | -18 / - | H49A | - / - | 2 | Partial capture |
| 10-11 15:59 | 60m | -10 / - | YL3FW | -15 / +1 | 4 | ✓ Closing observed |
| 10-11 15:58 | 60m | -14 / -12 | DL5IF | -9 / -1 | 7 | ✓ Full exchange observed |
| 10-11 15:57 | 60m | -9 / -6 | DJ1MD | -8 / -2 | 5 | ✓ Full exchange observed |
| 10-11 15:56 | 60m | -14 / - | 9K2GR | - / - | 2 | Partial capture |
| 10-10 15:46 | 40m | 0 / - | S79VU | - / - | 19 | Partial capture |
| 10-10 15:43 | 60m | +1 / - | GM8FXD | - / -9 | 2 | ✓ Closing fragment |
| 10-10 15:42 | 60m | +1 / - | G0OXO | -14 / -7 | 4 | ✓ Full exchange observed |
| 10-10 15:41 | 60m | +4 / -6 | LY2J | -4 / +2 | 5 | ✓ Full exchange observed |
| 10-10 15:39 | 60m | +1 / -4 | OE1TKS | -10 / -7 | 5 | ✓ Full exchange observed |
| 10-09 20:33 | 60m | -6 / - | 9T0MD | - / - | 6 | Partial capture |
| 10-09 20:27 | 60m | -16 / - | 9T0MD | - / - | 3 | Partial capture |
| 10-09 20:24 | 60m | -9 / - | 9T0MD | - / - | 2 | Partial capture |
| 10-09 20:18 | 60m | -6 / - | 9T0MD | - / - | 5 | Partial capture |
| 10-09 20:03 | 60m | -3 / - | 9T0MD | - / - | 17 | Partial capture |
| 10-09 19:09 | 80m | +5 / +1 | OH8WW | -10 / +2 | 4 | ✓ Full exchange observed |
| 10-09 19:04 | 80m | +7 / - | VK3AMP | - / - | 6 | Partial capture |
| 10-06 15:00 | 40m | +12 / - | OI7AX | - / - | 2 | Partial capture |
| 10-06 14:59 | 40m | +22 / -1 | IV3CMW | +2 / +1 | 4 | ✓ Full exchange observed |
| 10-06 14:57 | 40m | +12 / -2 | UT3RO | +3 / +1 | 5 | ✓ Full exchange observed |
| 10-06 14:55 | 40m | +10 / +4 | DL8NCV | -12 / -9 | 6 | ✓ Full exchange observed |
| 10-06 14:53 | 40m | +4 / +6 | DK8EW | -9 / +2 | 5 | ✓ Full exchange observed |
| 10-06 14:52 | 40m | +4 / +7 | YO3JW | -4 / -7 | 4 | ✓ Full exchange observed |
| 10-06 14:50 | 40m | +8 / +1 | F4MXT/P | +2 / 0 | 5 | ✓ Full exchange observed |
| 10-06 14:48 | 40m | +6 / - | SM7MDI | - / +1 | 2 | ✓ Closing fragment |
| 10-06 14:46 | 40m | +8 / - | DF4JY | - / -15 | 2 | ✓ Closing fragment |
| 10-06 14:45 | 40m | +8 / +10 | HB9CVT | +7 / +2 | 5 | ✓ Full exchange observed |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 054615 -10 2609 F5RMK OH3EX KP20 054630 -14 1606 OH3EX F5RMK -04 054645 -16 2609 F5RMK OH3EX R-15 054700 -12 1607 OH3EX F5RMK -04 054715 -16 2609 F5RMK OH3EX R-17 054730 -14 1607 OH3EX F5RMK RR73 054745 -11 2609 F5RMK OH3EX 73 054815 -20 2609 DO8JB OH3EX KP20 042015 -6 2609 YV6BXN OH3EX KP20 042445 -2 2605 VP2MAW OH3EX KP20 (x4) 055015 -2 2771 OE/DL1JAT OH3EX KP20 (x2)
UTC dB Audio Message 171230 -6 2695 UN0GY OH3EX R-07 (x2) 171330 +1 2695 CQ OH3EX KP20 171400 +7 2695 BD8FWI OH3EX KP20 (x3) 171600 +3 2695 DK1IO/T OH3EX KP20 (x2) 171715 -16 1991 OH3EX F4HSB JN37 (x2) 171800 +5 2695 F4HSB OH3EX -17 171815 -13 1991 OH3EX F4HSB R+13 171930 +2 2695 CQ OH3EX KP20 171945 +5 2695 OH3EX RV3GZ KO92 172100 +0 2695 IU8RFW OH3EX -04
UTC dB Audio Message 173645 -6 2639 9H6C OH3EX KP20 (x4) 040315 -13 2489 VP2MAW OH3EX KP20 (x3) 040530 -10 438 OH3EX RR73; Z33ST <...> -16 063445 -13 2200 OE/DL1MKW OH3EX KP20 063615 -12 1076 <K6VHF/HR9> OH3EX KP20 (x6)
UTC dB Audio Message 181045 -5 764 OH3EX SP8WB -05 (x2) 181130 -13 2160 SP8WB OH3EX 73 181200 -22 2160 SQ6WA OH3EX KP20 (x2) 181245 +2 976 OH3EX SQ6WA -06 181300 -22 2160 SQ6WA OH3EX R-09 181315 +3 976 OH3EX SQ6WA RR73 181330 -14 2160 SQ6WA OH3EX 73 181430 -14 2161 LY2BNL OH3EX KP20 181515 -12 1802 OH3EX LY2BNL +17 (x5)
UTC dB Audio Message 162645 -13 2487 YO2LFP OH3EX R+03 (x2) 162745 -8 2487 CQ OH3EX KP20 162800 -3 531 OH3EX DL1TS JN58 162815 -6 2487 DL1TS OH3EX +01 162830 +2 531 OH3EX DL1TS R-07 (x2) 163115 -12 2487 E73PJ OH3EX 73 163215 -12 2486 YU1WS OH3EX KP20
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 SO8OOFT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee