OH7MA — 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 OH7MA, decoded by SO8OO in southeastern Poland. 752 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, across 31 UTC dates in the available aggregate history. Observed between 2026-06-18 and 2026-10-20.
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 752 FT8 messages attributed to OH7MA as the transmitting token by decoded message structure across 31 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (59%), followed by 40 m (32%) and 160 m (5%). Most decodes (61%) fell within the six-hour window 01:00-07:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (67%); the estimated median was -3.5 dB.
Overview
Bands
Last attributed message: 2026-10-20 03:54 UTC
Observed FT8 message patterns
- Attributed sample
- 752 messages
- Active dates
- 31 UTC dates
- Estimated median S/N
- -3.5 dB
- Estimated 10th-90th percentile
- -16 to +7 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 84, moderate (-15 to -9 dB) 166, strong (≥ -8 dB) 502.
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 OH7MA 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 OH7MA
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
- KP52 · 496 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,505 km (approx.)
- Last such locator decoded
- 2026-10-20 03:50 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 | OH7MA S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-22 04:26 | 40m | - / -3 | TO4A | +6 / - | 2 | ✓ Closing fragment |
| 10-20 03:54 | 160m | +2 / - | GU4WRP | - / -17 | 2 | ✓ Closing fragment |
| 10-20 03:31 | 160m | +1 / - | PP5JR | - / - | 2 | Partial capture |
| 10-19 06:09 | 40m | -4 / - | DG9FFM | - / -13 | 2 | ✓ Closing fragment |
| 10-19 06:08 | 40m | -8 / +1 | F1DSZ | -2 / - | 6 | ✓ Full exchange observed |
| 10-19 06:06 | 40m | -8 / - | KE5ETC | - / -17 | 3 | ✓ Closing fragment |
| 10-19 06:05 | 40m | -9 / - | RA9FA | - / +3 | 3 | ✓ Closing fragment |
| 10-19 06:01 | 40m | -16 / - | KQ4FMX | - / -2 | 2 | Partial capture |
| 10-19 05:58 | 40m | - / +3 | F8MRQ | -11 / - | 4 | ✓ Closing fragment |
| 10-19 05:51 | 40m | - / - | CT2HEX | -16 / - | 2 | Partial capture |
| 10-19 05:43 | 40m | -17 / - | N1EDF | - / -7 | 4 | ✓ Closing fragment |
| 10-19 05:41 | 40m | - / - | IX1CVF | -16 / - | 2 | Partial capture |
| 10-19 05:40 | 40m | -11 / - | M9PAS | - / +8 | 3 | ✓ Closing fragment |
| 10-19 05:38 | 40m | -10 / -12 | DL3HBF | +5 / - | 10 | ✓ Closing observed |
| 10-19 05:37 | 40m | - / - | F8MRQ | -12 / - | 5 | Partial capture |
| 10-19 05:36 | 40m | -14 / 0 | GJ0KYZ | -10 / 0 | 3 | ✓ Full exchange observed |
| 10-19 05:36 | 40m | -15 / - | AK7W | - / -15 | 2 | ✓ Closing fragment |
| 10-19 03:52 | 40m | -6 / - | OE8JOTA | - / - | 5 | Partial capture |
| 10-19 03:43 | 40m | -15 / - | R2EA/M | - / - | 3 | Partial capture |
| 10-19 03:36 | 40m | -9 / - | RA4ADF/P | - / - | 2 | Partial capture |
| 10-19 03:28 | 40m | -8 / - | K4ISG | - / - | 3 | Partial capture |
| 10-19 03:21 | 40m | -11 / - | KB5YNF | - / -14 | 3 | ✓ Closing fragment |
| 10-19 03:17 | 40m | -23 / - | N4BWW | - / - | 2 | Partial capture |
| 10-19 02:59 | 40m | +7 / - | 7P8GE | - / - | 15 | Partial capture |
| 10-18 14:55 | 60m | -17 / - | LA7DFA | - / - | 6 | Partial capture |
| 10-18 14:49 | 10m | - / +4 | CR7BUW | -12 / - | 3 | Partial capture |
| 10-17 15:08 | 160m | -19 / - | H49A | - / - | 2 | Partial capture |
| 10-17 15:03 | 160m | -17 / - | H49A | - / - | 2 | Partial capture |
| 10-15 15:05 | 80m | -7 / - | BI8FRF | - / +4 | 5 | ✓ Closing fragment |
| 10-15 15:02 | 80m | -5 / - | BX4AP | - / -3 | 4 | ✓ Closing fragment |
| 10-15 14:59 | 80m | -9 / - | YB1LED | - / -4 | 4 | ✓ Closing fragment |
| 10-15 14:49 | 80m | -4 / - | BX4AP | - / - | 10 | Partial capture |
| 10-15 14:12 | 80m | -6 / - | JH6DUL | - / - | 5 | Partial capture |
| 10-15 14:06 | 80m | -5 / - | AC6T | - / - | 4 | Partial capture |
| 10-07 20:05 | 40m | -3 / - | JH7VTE | - / -9 | 2 | ✓ Closing fragment |
| 10-07 20:03 | 40m | -5 / - | DS2MGT | - / -8 | 3 | ✓ Closing fragment |
| 10-07 04:24 | 80m | -4 / - | TK1CX | - / -3 | 4 | Partial capture |
| 10-07 04:20 | 80m | -10 / -9 | TK1CX | -2 / -3 | 3 | Partial capture |
| 10-07 04:10 | 80m | -9 / - | TK1CX | - / - | 7 | Partial capture |
| 10-06 00:47 | 80m | -4 / - | C5R | - / -16 | 2 | Partial capture |
| 10-03 05:22 | 40m | +8 / - | KT8Q | - / - | 3 | Partial capture |
| 10-03 05:15 | 40m | +6 / - | NZ1VA | - / -13 | 7 | ✓ Closing fragment |
| 10-03 05:14 | 40m | +9 / - | N7TP | - / - | 2 | Partial capture |
| 10-03 05:08 | 40m | +3 / - | K1ZIA | - / -19 | 5 | Partial capture |
| 10-03 05:05 | 40m | +4 / - | K4JJL | - / -13 | 2 | ✓ Closing fragment |
| 10-03 05:04 | 40m | - / - | F5PBG | +4 / - | 2 | Partial capture |
| 10-03 05:02 | 40m | +3 / - | K1NZ | - / - | 3 | ✓ Closing fragment |
| 10-03 04:59 | 40m | -15 / - | N5HDW | - / - | 3 | Partial capture |
| 10-03 04:58 | 40m | 0 / - | KQ4PFG | - / -12 | 2 | Partial capture |
| 10-03 04:52 | 40m | 0 / - | N9UUR | - / -15 | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 060615 -10 1852 RA9FA OH7MA 73 060645 -8 1852 KE5ETC OH7MA KP52 (x3) 060800 -3 347 OH7MA F1DSZ JN06 060815 -8 1852 RA9FA OH7MA 73 060830 +1 347 OH7MA F1DSZ JN06 060845 -7 1852 F1DSZ OH7MA +13 060900 -4 347 OH7MA F1DSZ R+01 060915 -10 1852 F1DSZ OH7MA RR73 060930 +0 347 OH7MA F1DSZ 73 060945 -11 1852 DG9FFM OH7MA -13 (x2) 042600 +3 388 OH7MA TO4A -03 (x2)
UTC dB Audio Message 042100 -24 723 KE4EB OH7MA KP52 (x2) 042300 -24 724 KO4PRE OH7MA KP52 150345 -17 968 H49A OH7MA KP52 (x4) 033130 -2 628 PP5JR OH7MA KP52 (x2) 033500 -1 628 CQ DX OH7MA KP52 033530 +1 628 M0IOY OH7MA -04 033900 +8 628 K7KX OH7MA 73 035030 +2 628 CQ DX OH7MA KP52 035415 +1 628 GU4WRP OH7MA R-17 (x2)
UTC dB Audio Message 145900 -9 895 YB1LED OH7MA KP52 (x4) 150230 -8 895 BX4AP OH7MA KP52 (x4) 150515 -11 895 BI8FRF OH7MA KP52 (x5) 040300 -3 863 OE/DL1MKW OH7MA KP52 040330 -1 863 <W9HT/VP9> OH7MA KP52
UTC dB Audio Message 145515 -11 2364 LA7DFA OH7MA KP52 (x6)
UTC dB Audio Message 144930 -13 2494 OH7MA CR7BUW IM58 (x3)
UTC dB Audio Message 053215 -14 2187 WE0D OH7MA R-16 (x2) 053745 -18 1823 OH2LCP OH7MA KP52 (x2) 054015 -11 1823 AK4T OH7MA KP52 (x3) 054345 -23 1823 WB6MPH OH7MA KP52 (x5) 055130 -24 1823 W5J OH7MA KP52 (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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