DO3HJW — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving DO3HJW, decoded by SO8OO in southeastern Poland. 192 FT8 messages attributed to this token as transmitter, on 160m, 80m, across 6 UTC dates in the available aggregate history. Observed between 2026-09-25 and 2026-10-03.
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 192 FT8 messages attributed to DO3HJW as the transmitting token by decoded message structure across 6 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (80%), followed by 160 m (20%). Most decodes (65%) fell within the six-hour window 19:00-01:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (88%); the estimated median was -1 dB.
Overview
Bands
Last attributed message: 2026-10-03 20:16 UTC
Observed FT8 message patterns
- Attributed sample
- 192 messages
- Active dates
- 6 UTC dates
- Estimated median S/N
- -1 dB
- Estimated 10th-90th percentile
- -10 to +8 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 5, moderate (-15 to -9 dB) 19, strong (≥ -8 dB) 168.
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 DO3HJW 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 DO3HJW
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
- JO53 · 76 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 841 km (approx.)
- Last such locator decoded
- 2026-10-03 20:16 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 | DO3HJW S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-03 20:15 | 160m | -1 / - | IH9YMC | - / - | 3 | Partial capture |
| 10-03 20:13 | 160m | -9 / - | LA9JKA | -19 / 0 | 4 | ✓ Closing observed |
| 10-03 06:17 | 80m | -5 / - | DF2FM | -20 / 0 | 5 | Partial capture |
| 10-03 05:50 | 80m | -1 / - | HI3RRR | - / - | 2 | Partial capture |
| 10-03 05:48 | 80m | - / - | SP1MGM | +6 / - | 3 | ✓ Closing fragment |
| 10-03 05:20 | 80m | -6 / - | RA1NBG | - / -13 | 2 | Partial capture |
| 10-03 05:19 | 80m | -2 / - | DL3FBI | -13 / +2 | 5 | ✓ Full exchange observed |
| 10-02 18:17 | 80m | - / - | DK0FL | -6 / - | 4 | Partial capture |
| 10-02 18:17 | 80m | 0 / - | R1BDX | - / -10 | 2 | ✓ Closing fragment |
| 10-02 18:16 | 80m | - / - | DL7UKM | -5 / - | 4 | Partial capture |
| 10-02 18:15 | 80m | - / - | US1MM | -5 / - | 3 | Partial capture |
| 10-02 18:09 | 160m | - / - | PA4GDR | -24 / - | 2 | ✓ Closing fragment |
| 10-02 17:50 | 80m | -6 / - | TF4M | - / -6 | 2 | Partial capture |
| 10-02 17:48 | 80m | -3 / +10 | DO9ST | -6 / -1 | 3 | ✓ Full exchange observed |
| 10-02 17:47 | 80m | -8 / +1 | OH3MB | -4 / -6 | 6 | ✓ Full exchange observed |
| 10-02 17:41 | 80m | +3 / -20 | RA9CUU | -22 / -17 | 5 | ✓ Full exchange observed |
| 09-28 19:47 | 80m | +2 / - | DF5RA | +5 / +1 | 3 | ✓ Full exchange observed |
| 09-28 19:42 | 160m | - / +5 | LX1JX | -4 / - | 2 | ✓ Closing fragment |
| 09-28 19:41 | 160m | -10 / - | R8KAN | - / - | 2 | Partial capture |
| 09-28 19:38 | 160m | 0 / +1 | DD7EE | -5 / -2 | 5 | ✓ Full exchange observed |
| 09-28 19:36 | 160m | -12 / - | UN0GY | - / - | 2 | Partial capture |
| 09-28 19:35 | 160m | -14 / - | HA5AO | - / - | 2 | Partial capture |
| 09-28 19:33 | 160m | -4 / - | 9F5MKK | - / -25 | 2 | Partial capture |
| 09-28 19:22 | 80m | - / - | SP1MGM | +10 / - | 2 | Partial capture |
| 09-28 19:20 | 80m | -7 / - | PA0MUS | - / -14 | 3 | ✓ Closing fragment |
| 09-28 19:14 | 80m | 0 / - | TK4QP | - / -22 | 6 | ✓ Closing fragment |
| 09-28 19:10 | 80m | +5 / +8 | ON8MA | -16 / - | 3 | ✓ Closing observed |
| 09-28 19:08 | 80m | +2 / - | SP5DFK/QRP | - / - | 2 | Partial capture |
| 09-28 19:04 | 160m | -20 / - | SV9MBH | - / - | 2 | Partial capture |
| 09-28 18:56 | 80m | -2 / - | DO2SGW | - / -17 | 2 | ✓ Closing fragment |
| 09-28 18:54 | 80m | +4 / -7 | SP5DFK/QRP | -5 / -23 | 3 | Partial capture |
| 09-28 06:03 | 80m | -6 / - | LY3BES | - / -14 | 2 | ✓ Closing fragment |
| 09-28 06:02 | 80m | -5 / - | AY5OPJ | - / -12 | 2 | ✓ Closing fragment |
| 09-28 05:47 | 80m | 0 / -4 | DO7RMS | -4 / -4 | 7 | ✓ Full exchange observed |
| 09-28 05:45 | 80m | -4 / - | IZ2EWN | -16 / -5 | 4 | ✓ Closing observed |
| 09-28 05:44 | 80m | -4 / - | 4L7JOB | - / -22 | 3 | ✓ Closing fragment |
| 09-28 05:43 | 80m | -1 / - | W1KSO | - / -7 | 2 | Partial capture |
| 09-28 05:37 | 80m | -10 / +6 | DH1DAC | 0 / - | 5 | ✓ Closing observed |
| 09-28 05:34 | 80m | -4 / - | DM2GG | -3 / - | 13 | ✓ Closing observed |
| 09-28 05:34 | 80m | 0 / - | DO1FZL | -5 / +7 | 7 | ✓ Full exchange observed |
| 09-27 00:11 | 80m | +2 / - | N8QZW | - / -25 | 2 | Partial capture |
| 09-27 00:07 | 80m | +7 / - | NI4Z | - / -25 | 2 | Partial capture |
| 09-27 00:06 | 80m | 0 / - | CT2GQA | -14 / -10 | 3 | ✓ Closing observed |
| 09-27 00:04 | 80m | +4 / - | ON4MAP | -23 / +4 | 3 | ✓ Closing observed |
| 09-27 00:01 | 160m | -13 / +3 | SA6BZZ | -24 / -12 | 3 | ✓ Full exchange observed |
| 09-26 23:59 | 160m | -10 / - | EC1AIJ | -20 / -16 | 3 | ✓ Closing observed |
| 09-26 23:55 | 160m | -11 / -20 | R5AV | -2 / +1 | 5 | ✓ Full exchange observed |
| 09-26 23:52 | 80m | +8 / - | EU1AFX | +11 / +6 | 3 | ✓ Closing observed |
| 09-26 23:52 | 80m | - / - | R8CW | -6 / - | 4 | Partial capture |
| 09-26 23:47 | 80m | +10 / - | SP100PKP | - / -9 | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 180900 -3 1345 CQ DO3HJW JO53 180945 -23 1345 DO3HJW PA4GDR JO32 (x2) 181115 -11 1689 DO3HJW RK6OQ KN87 201130 -10 1690 CQ DO3HJW JO53 (x2) 201215 -22 1122 DO3HJW IU4TQI JN54 201230 -13 1690 CQ DO3HJW JO53 201345 -8 1690 LA9JKA DO3HJW JO53 (x2) 201430 -19 1589 DO3HJW LA9JKA RR73 201445 -5 1690 LA9JKA DO3HJW 73 201545 -1 1690 IH9YMC DO3HJW JO53 (x3)
UTC dB Audio Message 054915 +7 1346 DO3HJW SP1MGM 73 055015 -1 1346 HI3RRR DO3HJW JO53 (x2) 055145 +0 1346 ZL4KX DO3HJW JO53 055215 -3 1345 EC6DX DO3HJW JO53 055915 -2 1346 ZL4KX DO3HJW 73 060115 -5 1346 CQ DO3HJW JO53 a1 060300 -7 1345 KK4TO DO3HJW R-13 061630 -9 1346 CQ DO3HJW JO53 (x2) 061715 -24 1754 DO3HJW DF2FM JO41 (x2) 061900 -5 1345 DF2FM DO3HJW +00 (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.
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