OK1JMB — 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 OK1JMB, decoded by SO8OO in southeastern Poland. 1,624 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, 10m, across 40 UTC dates in the available aggregate history. Observed between 2026-07-17 and 2026-11-03.
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 1,624 FT8 messages attributed to OK1JMB as the transmitting token by decoded message structure across 40 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (49%), followed by 40 m (30%) and 160 m (19%). Most decodes (63%) fell within the six-hour window 22:00-04:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (75%); the estimated median was +1 dB.
Overview
Bands
Last attributed message: 2026-11-03 07:40 UTC
Observed FT8 message patterns
- Attributed sample
- 1,624 messages
- Active dates
- 40 UTC dates
- Estimated median S/N
- +1 dB
- Estimated 10th-90th percentile
- -15.1 to +12 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 158, moderate (-15 to -9 dB) 248, strong (≥ -8 dB) 1,218.
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 OK1JMB 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 OK1JMB
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
- JN78 · 979 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 518 km (approx.)
- Last such locator decoded
- 2026-11-03 07:39 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 | OK1JMB S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 11-03 07:40 | 80m | -2 / - | DL6LG | - / -18 | 2 | ✓ Closing fragment |
| 11-03 01:41 | 80m | +16 / - | EX7DY | - / - | 2 | Partial capture |
| 11-03 01:36 | 80m | +16 / - | TA2TEO | - / -25 | 3 | ✓ Closing fragment |
| 11-03 01:33 | 80m | +16 / - | RA3ZDU | -2 / -20 | 3 | ✓ Closing observed |
| 11-03 01:31 | 80m | +16 / +8 | SP5EXA | +14 / 0 | 5 | ✓ Full exchange observed |
| 11-03 01:27 | 80m | +12 / -15 | SP1ADT | +7 / -5 | 5 | ✓ Full exchange observed |
| 11-03 01:27 | 80m | +16 / - | SM5WXF | - / -13 | 4 | ✓ Closing fragment |
| 11-03 01:26 | 80m | +14 / -8 | SP5JMA | 0 / -13 | 4 | ✓ Full exchange observed |
| 11-03 01:24 | 80m | +13 / - | RA4FUT | - / -25 | 3 | ✓ Closing fragment |
| 11-03 01:22 | 80m | +13 / - | SP1EG | -6 / -10 | 4 | ✓ Closing observed |
| 11-03 01:21 | 80m | +11 / - | ON4MAP | - / -16 | 3 | ✓ Closing fragment |
| 11-03 01:21 | 80m | - / - | UR3HC | +2 / - | 4 | Partial capture |
| 11-03 01:20 | 80m | - / - | OK2CNI | +3 / - | 7 | Partial capture |
| 11-03 01:16 | 80m | +15 / - | SP1EG | +2 / -8 | 3 | Partial capture |
| 11-03 01:15 | 80m | +14 / -11 | F1IQH | -22 / -25 | 4 | ✓ Full exchange observed |
| 11-03 01:15 | 80m | +15 / +6 | IV3VBM | +17 / +2 | 6 | ✓ Full exchange observed |
| 11-03 01:14 | 80m | +12 / +2 | S50XX | +8 / -8 | 4 | ✓ Full exchange observed |
| 11-03 01:11 | 80m | +16 / -4 | F5OYA/P | -9 / -13 | 7 | ✓ Full exchange observed |
| 11-03 01:10 | 80m | +14 / +9 | ON8WR | -3 / -11 | 5 | ✓ Full exchange observed |
| 11-03 01:09 | 80m | +15 / - | TA1MB | -17 / -17 | 5 | ✓ Full exchange observed |
| 11-03 01:08 | 80m | +16 / - | EB3JT | - / -24 | 2 | ✓ Closing fragment |
| 11-03 01:07 | 80m | +18 / - | OD5ZZ | - / -25 | 3 | ✓ Closing fragment |
| 11-03 01:03 | 160m | +4 / - | SP9YGD | +1 / +8 | 5 | ✓ Full exchange observed |
| 11-01 03:37 | 160m | +8 / - | 6W/IK2HKT | - / - | 3 | Partial capture |
| 11-01 03:28 | 160m | +5 / - | EI4GAB | - / -20 | 8 | ✓ Closing fragment |
| 11-01 03:17 | 160m | +6 / - | AUDRIUS73 | - / - | 8 | Partial capture |
| 11-01 03:12 | 160m | 0 / - | UD8S | - / - | 8 | Partial capture |
| 11-01 03:10 | 160m | +4 / - | UT/KF0PFA | - / - | 4 | Partial capture |
| 11-01 03:05 | 160m | 0 / - | 6W/IK2HKT | - / - | 8 | Partial capture |
| 11-01 02:55 | 160m | +4 / - | 6W/IK2HKT | - / - | 13 | Partial capture |
| 11-01 02:51 | 160m | +6 / - | KB3Z | - / - | 7 | Partial capture |
| 11-01 02:47 | 160m | +10 / - | KB3Z | - / - | 2 | Partial capture |
| 11-01 02:36 | 160m | +8 / - | RA6FCU/P | - / - | 8 | Partial capture |
| 11-01 02:19 | 160m | +5 / - | 6W/IK2HKT | - / - | 27 | Partial capture |
| 11-01 02:15 | 160m | +4 / -2 | SP9CLQ | +2 / +5 | 5 | ✓ Full exchange observed |
| 11-01 02:13 | 160m | -2 / +6 | SP9UPH | +6 / - | 5 | ✓ Full exchange observed |
| 11-01 02:10 | 160m | +8 / - | OZ1ADL | -2 / -2 | 5 | ✓ Full exchange observed |
| 11-01 02:08 | 160m | +8 / -16 | UX7QV | +9 / -1 | 5 | ✓ Full exchange observed |
| 11-01 01:54 | 60m | - / -13 | 4X1UF | -6 / - | 2 | ✓ Closing fragment |
| 11-01 01:49 | 80m | -8 / - | TC3ATA | - / - | 4 | Partial capture |
| 11-01 01:48 | 80m | -6 / +6 | SP3XR | -5 / +1 | 5 | ✓ Full exchange observed |
| 11-01 01:46 | 80m | +6 / +4 | 5B4AMX | -4 / -8 | 5 | ✓ Full exchange observed |
| 11-01 01:44 | 80m | +9 / - | OH6FSO | - / -24 | 3 | ✓ Closing fragment |
| 11-01 01:43 | 80m | +10 / -22 | PE1NPS | -9 / -10 | 5 | ✓ Full exchange observed |
| 11-01 01:41 | 80m | +8 / - | SV3AUW | -13 / -12 | 5 | ✓ Closing observed |
| 10-16 07:15 | 40m | +6 / - | KR4HRN | - / -21 | 13 | Partial capture |
| 10-16 07:12 | 40m | +6 / - | N9CK | - / -21 | 4 | ✓ Closing fragment |
| 10-15 22:04 | 160m | +2 / -12 | RA3WY | -11 / -8 | 5 | ✓ Full exchange observed |
| 10-15 22:02 | 160m | +4 / - | DO8PAT | - / -11 | 2 | ✓ Closing fragment |
| 10-15 22:00 | 160m | +3 / - | UA4FKT | - / -17 | 2 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 013345 -2 1657 OK1JMB RA3ZDU 73 013400 +6 1657 CQ OK1JMB JN78 (x2) 013545 +10 1658 IK4TVP OK1JMB JN78 013645 +13 1658 TA2TEO OK1JMB JN78 (x3) 013815 +4 1657 CQ OK1JMB JN78 a1 (x2) 014115 +17 1658 EX7DY OK1JMB JN78 (x2) 073915 -1 1702 CQ OK1JMB JN78 (x2) 074015 -7 1702 DL6LG OK1JMB -18 (x2)
UTC dB Audio Message 033230 +2 1556 EI4GAB OK1JMB R-20 (x2) 033345 -20 700 OK1JMB R6ZEJ KN98 033700 +9 1513 6W/IK2HKT OK1JMB JN78 (x3) 010300 +1 1646 CQ OK1JMB JN78 010315 +3 1646 OK1JMB SP9YGD JO73 010330 +5 1646 SP9YGD OK1JMB +08 010345 -1 1646 OK1JMB SP9YGD R+16 010400 +4 1646 SP9YGD OK1JMB RR73 010415 +0 1646 OK1JMB SP9YGD 73 010430 +5 1646 CQ OK1JMB JN78 (x3)
UTC dB Audio Message 030400 -4 2036 OK1JMB F5RMK +09 (x2) 030500 +3 1914 OK1JMB F5RRS JN36 (x4) 030930 +7 584 OK1JMB IT9JNR +14 (x2) 160015 +1 1780 FW1P OK1JMB JN78 160100 -24 1932 OK1JMB SP5NON JO92 (x2) 015400 -7 2583 OK1JMB 4X1UF -13 (x2)
UTC dB Audio Message 071345 +7 1190 N9CK OK1JMB R-21 (x2) 071530 +2 1191 KR4HRN OK1JMB JN78 (x13)
UTC dB Audio Message 130700 -20 1585 OK1JMB CT7AUT IM67 (x2) 072945 -7 1930 HA5DI OK1JMB R-14 073045 -17 1926 DJ3HW OK1JMB JN78 073100 -7 1205 OK1JMB DJ3HW -09 (x3) 073530 +0 2283 OK1JMB HB9ACA -16 092800 -8 2297 OK1JMB IQ4JO JN63 (x2)
UTC dB Audio Message 200000 -3 1906 OK1JMB M0BEW +02 (x2) 200430 -20 1792 OK1JMB EA5KV -15 (x6) 201200 -2 1907 OK1JMB F4ACR IN96 (x4) 054915 -20 1698 OK1JMB IS0KNG RR73 (x2) 053745 -10 2011 OK1JMB SV1GYN KM17
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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