DF4JH/QRP — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving DF4JH/QRP, decoded by SO8OO in southeastern Poland. 159 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, across 10 UTC dates in the available aggregate history. Observed between 2026-08-28 and 2026-09-20.
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 159 FT8 messages attributed to DF4JH/QRP as the transmitting token by decoded message structure across 10 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (94%), followed by 20 m (4%) and 80 m (1%). Most decodes (89%) fell within the six-hour window 11:00-17:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -16 dB.
Overview
Bands
Last attributed message: 2026-09-20 14:02 UTC
Observed FT8 message patterns
- Attributed sample
- 159 messages
- Active dates
- 10 UTC dates
- Estimated median S/N
- -16 dB
- Estimated 10th-90th percentile
- -22 to -11 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 85, moderate (-15 to -9 dB) 67, strong (≥ -8 dB) 7.
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 DF4JH/QRP 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.
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 | DF4JH/QRP S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-20 14:02 | 40m | -20 / - | <...> | -10 / - | 2 | ✓ Closing fragment |
| 09-20 11:17 | 40m | -16 / - | PD3FJJ | - / -11 | 3 | Partial capture |
| 09-18 20:19 | 40m | - / +5 | DL2VM | +1 / - | 4 | Partial capture |
| 09-18 19:42 | 40m | - / -8 | G0NWX | -20 / - | 2 | Partial capture |
| 09-18 18:16 | 40m | - / +4 | DL2VM | 0 / - | 4 | Partial capture |
| 09-16 15:07 | 40m | - / - | <...> | +14 / - | 2 | ✓ Closing fragment |
| 09-16 06:34 | 40m | -11 / - | <...> | -7 / - | 2 | ✓ Closing fragment |
| 09-16 06:31 | 40m | -10 / -19 | HA7TM | +4 / -19 | 4 | Partial capture |
| 09-14 15:37 | 40m | -7 / -12 | DK0RST | -8 / -19 | 2 | Partial capture |
| 09-14 15:29 | 40m | -13 / - | <...> | +8 / - | 2 | ✓ Closing fragment |
| 09-14 15:01 | 40m | - / -9 | HA8DG | -15 / - | 3 | Partial capture |
| 09-14 14:49 | 40m | - / - | HA8DG | -18 / - | 2 | Partial capture |
| 09-14 14:15 | 40m | -20 / - | <...> | +10 / - | 2 | ✓ Closing fragment |
| 09-14 07:12 | 40m | -17 / - | F1UFX | - / -9 | 3 | Partial capture |
| 09-11 13:45 | 40m | - / +3 | HG8LXL | -6 / - | 3 | Partial capture |
| 09-11 13:09 | 40m | - / - | <...> | -3 / - | 3 | ✓ Closing fragment |
| 09-10 04:03 | 80m | - / -22 | IK3OGN | -16 / - | 3 | Partial capture |
| 09-09 19:22 | 80m | - / - | SP2HYO | +12 / - | 2 | Partial capture |
| 09-09 15:37 | 80m | -22 / - | <...> | -4 / - | 2 | ✓ Closing fragment |
| 09-09 14:42 | 40m | - / -3 | DM2CNE | -14 / - | 3 | Partial capture |
| 09-09 14:37 | 40m | -13 / - | <...> | -13 / - | 2 | ✓ Closing fragment |
| 09-09 06:36 | 40m | - / - | DL4SZB | 0 / - | 2 | Partial capture |
| 09-09 06:35 | 40m | -20 / - | <...> | -4 / - | 3 | ✓ Closing fragment |
| 09-08 07:56 | 40m | - / -9 | F4BYA | -4 / - | 6 | Partial capture |
| 09-05 10:14 | 40m | - / -24 | PD1AC | -19 / - | 2 | Partial capture |
| 09-04 12:59 | 40m | - / - | SP5LXT/QRP | -12 / - | 4 | Partial capture |
| 09-04 10:28 | 40m | - / -18 | DL6CMF | -16 / - | 3 | Partial capture |
| 09-03 15:54 | 40m | - / -8 | DL4FBZ | -18 / - | 2 | Partial capture |
| 09-03 15:18 | 40m | - / -2 | DK0NZ | +7 / - | 3 | Partial capture |
| 09-03 15:08 | 40m | -22 / -9 | DL9DAJ | -18 / -4 | 5 | Partial capture |
| 09-03 15:05 | 40m | -18 / - | IK2IKW | - / 0 | 2 | Partial capture |
| 09-03 15:02 | 40m | -14 / - | <...> | -13 / - | 3 | ✓ Closing fragment |
| 09-03 13:51 | 40m | -14 / - | S51PV | - / -11 | 4 | Partial capture |
| 09-03 13:45 | 40m | -17 / - | <...> | -18 / - | 3 | ✓ Closing fragment |
| 09-03 13:42 | 40m | -20 / -10 | DL7UKM | -6 / 0 | 4 | ✓ Full exchange observed |
| 09-03 13:40 | 40m | - / -10 | SP6EFY | 0 / - | 2 | Partial capture |
| 09-03 13:40 | 40m | -19 / - | <...> | +3 / - | 2 | ✓ Closing fragment |
| 09-01 10:30 | 40m | - / -10 | PE9JAN | -17 / - | 3 | Partial capture |
| 09-01 10:14 | 40m | - / - | UX2QX | -10 / - | 7 | Partial capture |
| 09-01 10:14 | 40m | - / - | <...> | -1 / - | 2 | ✓ Closing fragment |
| 08-31 16:33 | 40m | -20 / - | <...> | -5 / - | 2 | ✓ Closing fragment |
| 08-31 15:11 | 40m | -17 / - | G5GDX | - / +5 | 3 | Partial capture |
| 08-31 15:01 | 40m | - / - | <...> | -2 / - | 2 | ✓ Closing fragment |
| 08-31 14:33 | 40m | - / -16 | DD7EE | -6 / - | 2 | Partial capture |
| 08-31 14:32 | 40m | -22 / - | <...> | -7 / - | 2 | ✓ Closing fragment |
| 08-31 14:09 | 40m | -16 / - | <...> | - / - | 3 | Partial capture |
| 08-31 14:04 | 40m | -15 / - | PE1BSF | -14 / -11 | 2 | Partial capture |
| 08-31 14:02 | 40m | -13 / - | <...> | -10 / - | 2 | ✓ Closing fragment |
| 08-31 10:58 | 20m | -12 / -14 | F5IXN | +4 / -4 | 3 | Partial capture |
| 08-31 10:54 | 20m | - / -15 | PD3LKN | -6 / - | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 202015 +8 865 DF4JH/QRP DL2VM R+05 (x4) 085200 -12 1689 DF4JH/QRP <...> 73 (x2) 095715 -3 2758 DF4JH/QRP SQ9HA KO00 110015 -24 1854 DF4JH/QRP <...> 73 111700 -14 1854 PD3FJJ DF4JH/QRP -11 (x3) 135430 -21 1354 <...> DF4JH/QRP RRR 135445 -11 1352 DF4JH/QRP DL4NWM R+09 140215 -20 1354 <...> DF4JH/QRP RRR 140230 -10 1354 DF4JH/QRP <...> 73
UTC dB Audio Message 145830 -8 1111 DF4JH/QRP <...> 73 (x2) 190215 +0 1392 DF4JH/QRP DL1CC -05 162630 -17 1255 CQ DF4JH/QRP
UTC dB Audio Message 153130 -19 1280 CQ DF4JH/QRP 153700 -22 1534 <...> DF4JH/QRP RRR 153715 -4 1534 DF4JH/QRP <...> 73 192245 +15 1279 DF4JH/QRP SP2HYO JO93 (x2) 040345 -15 1283 DF4JH/QRP IK3OGN JN55 (x3)
UTC dB Audio Message 105415 +17 680 DF4JH/QRP <...> 73 105445 -11 681 DF4JH/QRP PD3LKN JO22 (x2) 105545 -9 681 DF4JH/QRP <...> 73 105600 -10 682 CQ DF4JH/QRP 105700 -16 2195 <...> DF4JH/QRP RRR 105715 -2 2195 DF4JH/QRP <...> 73 105800 -9 2406 <...> DF4JH/QRP RRR 105830 -12 2406 CQ DF4JH/QRP 105845 +3 2406 DF4JH/QRP F5IXN JN23 105900 -12 2406 F5IXN DF4JH/QRP -04 105915 +4 2406 DF4JH/QRP F5IXN R-14 105930 -10 2406 <...> DF4JH/QRP RRR 105945 +7 2406 DF4JH/QRP <...> 73
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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