PD1HTW — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving PD1HTW, decoded by SO8OO in southeastern Poland. 716 FT8 messages attributed to this token as transmitter, on 40m, 10m, across 43 UTC dates in the available aggregate history. Observed between 2026-06-07 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 716 FT8 messages attributed to PD1HTW as the transmitting token by decoded message structure across 43 UTC dates in the available aggregate history. The largest monitored-band total was 10 m (73%), followed by 40 m (27%). Most decodes (61%) fell within the six-hour window 05:00-11:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -12 dB.
Overview
Bands
Last attributed message: 2026-09-20 12:02 UTC
Observed FT8 message patterns
- Attributed sample
- 716 messages
- Active dates
- 43 UTC dates
- Estimated median S/N
- -12 dB
- Estimated 10th-90th percentile
- -18 to +2 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 177, moderate (-15 to -9 dB) 292, strong (≥ -8 dB) 247.
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 PD1HTW 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 PD1HTW
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
- JO22 · 500 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,201 km (approx.)
- Last such locator decoded
- 2026-09-20 12:00 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 | PD1HTW S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-20 12:02 | 40m | -14 / - | GM5DNA | - / -4 | 2 | ✓ Closing fragment |
| 09-20 08:06 | 40m | -14 / - | F4BAL | - / -15 | 2 | ✓ Closing fragment |
| 09-20 08:04 | 40m | - / - | PD3FR | -10 / - | 2 | ✓ Closing fragment |
| 09-20 07:59 | 40m | -13 / - | N1UL | - / -24 | 6 | Partial capture |
| 09-20 07:55 | 40m | - / +2 | PD1ADA | -14 / - | 2 | ✓ Closing fragment |
| 09-20 07:47 | 40m | -11 / - | ON3RT | - / -13 | 2 | ✓ Closing fragment |
| 09-20 07:44 | 40m | -12 / - | DD7IW | - / -13 | 2 | ✓ Closing fragment |
| 09-20 07:36 | 40m | -14 / +2 | DL6ZOG | -1 / - | 3 | ✓ Full exchange observed |
| 09-20 07:18 | 40m | -10 / - | J88IH | - / - | 3 | Partial capture |
| 09-20 07:09 | 40m | -14 / -1 | YL2TM | -13 / -8 | 5 | ✓ Full exchange observed |
| 09-20 06:57 | 40m | -11 / - | F4NJU | - / -18 | 2 | ✓ Closing fragment |
| 09-20 06:51 | 40m | -11 / - | SM7WNM | - / -1 | 2 | ✓ Closing fragment |
| 09-20 06:10 | 40m | -7 / -7 | SP3CGK | +1 / +5 | 5 | ✓ Full exchange observed |
| 09-20 06:06 | 40m | - / -12 | YO4NT | +12 / - | 2 | ✓ Closing fragment |
| 09-20 06:05 | 40m | - / +5 | ES2AJ | +1 / - | 2 | Partial capture |
| 09-14 14:25 | 40m | - / - | OE8PIT | -8 / - | 2 | ✓ Closing fragment |
| 09-12 15:09 | 40m | -16 / - | M0IAP | - / -14 | 2 | ✓ Closing fragment |
| 09-12 09:36 | 40m | - / 0 | SP9AU | -10 / - | 2 | Partial capture |
| 09-12 09:22 | 40m | -16 / - | G3YPP/P | - / -12 | 2 | ✓ Closing fragment |
| 09-10 08:43 | 40m | - / - | SH7MEM | -12 / - | 2 | ✓ Closing fragment |
| 09-10 07:53 | 40m | - / - | SP1ZMO | -5 / - | 3 | Partial capture |
| 09-09 08:16 | 40m | - / +8 | DL1THB | -10 / - | 3 | ✓ Closing fragment |
| 09-07 07:36 | 40m | - / - | F4BYA | -4 / - | 4 | Partial capture |
| 09-07 07:24 | 40m | - / - | F4BYA | -6 / - | 4 | Partial capture |
| 09-07 07:17 | 40m | - / - | F4BYA | -3 / - | 3 | Partial capture |
| 09-07 07:10 | 40m | - / -8 | DG6TOM | -3 / - | 3 | ✓ Closing fragment |
| 09-07 07:05 | 40m | - / - | F4BYA | -8 / - | 3 | Partial capture |
| 09-06 06:33 | 40m | -16 / -13 | 9A3AUH | +6 / - | 3 | ✓ Closing observed |
| 09-06 06:20 | 40m | - / +4 | DL1UDO | -9 / - | 3 | ✓ Closing fragment |
| 09-06 06:16 | 40m | -11 / - | LB5CK | - / -9 | 3 | ✓ Closing fragment |
| 09-06 05:43 | 40m | -12 / - | KJ5PTH | - / - | 2 | Partial capture |
| 09-06 05:32 | 40m | -14 / +4 | DM2BM | +4 / - | 6 | ✓ Full exchange observed |
| 09-06 05:24 | 40m | -12 / -15 | SP3SWJ | -7 / -25 | 10 | ✓ Full exchange observed |
| 09-06 05:19 | 40m | - / -1 | IN3LHF | -18 / - | 2 | ✓ Closing fragment |
| 09-05 17:31 | 40m | -8 / - | EX7CQ | - / - | 3 | Partial capture |
| 08-31 21:24 | 40m | - / - | DF8RU | 0 / - | 3 | ✓ Closing fragment |
| 08-31 18:12 | 40m | -6 / - | PD4RJ | -11 / +3 | 2 | ✓ Closing observed |
| 08-31 15:23 | 40m | - / - | IK2WSA | -18 / - | 2 | ✓ Closing fragment |
| 08-30 20:34 | 40m | -7 / - | EA7KWF | - / -9 | 4 | ✓ Closing fragment |
| 08-30 18:49 | 40m | - / -9 | RN6MA | +5 / - | 2 | ✓ Closing fragment |
| 08-30 17:41 | 40m | -4 / +2 | M9OOS | -5 / - | 3 | ✓ Full exchange observed |
| 08-30 10:07 | 40m | - / - | DG5KAC | -20 / - | 2 | ✓ Closing fragment |
| 08-28 09:16 | 10m | - / +4 | IK4RVY | -20 / - | 2 | Partial capture |
| 08-28 07:49 | 10m | - / -17 | DN9OPA | -16 / - | 2 | ✓ Closing fragment |
| 08-27 07:27 | 40m | - / - | F4BYA | -4 / - | 2 | Partial capture |
| 08-24 23:05 | 40m | - / - | KK4BMV | -16 / - | 2 | Partial capture |
| 08-24 08:44 | 40m | - / 0 | DL6ZOG | -13 / - | 3 | ✓ Closing fragment |
| 08-24 08:34 | 40m | - / -15 | S57CT | -13 / - | 6 | ✓ Closing fragment |
| 08-24 08:21 | 40m | - / - | DK8WQ | -7 / - | 4 | Partial capture |
| 08-24 08:21 | 40m | - / -10 | DJ1TU | -14 / - | 3 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 075730 -11 1032 CQ PD1HTW JO22 075930 -9 1032 N1UL PD1HTW -24 (x6) 080415 -10 1032 PD1HTW PD3FR JO22 (x2) 080600 -17 1032 F4BAL PD1HTW R-15 (x2) 081600 -19 1032 M9NTS PD1HTW +00 120030 -15 1032 CQ PD1HTW JO22 120200 -14 1032 GM5DNA PD1HTW R-04 (x2)
UTC dB Audio Message 144430 -12 754 PD1HTW DN9DA 73 125815 -15 1052 CQ PD1HTW JO22 (x2) 125915 -15 1053 EI4JFB PD1HTW +10 130045 -12 1052 US1MM PD1HTW -16 (x4) 130315 -17 1051 CQ PD1HTW JO22 (x2) 073130 -17 1693 PD1HTW IK4TVP +00 074945 -15 1995 PD1HTW DN9OPA R-17 (x2) 091615 -22 1957 PD1HTW IK4RVY JN64 (x2)
UTC dB Audio Message 062030 -8 982 PD1HTW SP3IPA JO82 (x5)
UTC dB Audio Message 084545 -8 1175 PD1HTW DH2RL JN68 (x6)
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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