DH1HF — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving DH1HF, decoded by SO8OO in southeastern Poland. 2,409 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, 10m, across 88 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-10-06.
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 2,409 FT8 messages attributed to DH1HF as the transmitting token by decoded message structure across 88 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (36%), followed by 40 m (29%) and 80 m (18%). Most decodes (66%) fell within the six-hour window 19:00-01:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -17 dB.
Overview
Bands
Last attributed message: 2026-10-06 06:23 UTC
Observed FT8 message patterns
- Attributed sample
- 2,409 messages
- Active dates
- 88 UTC dates
- Estimated median S/N
- -17 dB
- Estimated 10th-90th percentile
- -22.6 to -10 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 1,419, moderate (-15 to -9 dB) 817, strong (≥ -8 dB) 173.
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 DH1HF 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 DH1HF
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
- JO30 · 1,981 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,053 km (approx.)
- Last such locator decoded
- 2026-10-06 06:23 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 | DH1HF S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-07 08:01 | 40m | - / -22 | DK6IM | -3 / - | 2 | ✓ Closing fragment |
| 10-07 07:28 | 40m | - / -1 | IN3IBW | 0 / - | 2 | ✓ Closing fragment |
| 10-07 07:08 | 40m | - / -11 | DL6EI | +2 / - | 2 | ✓ Closing fragment |
| 10-06 08:17 | 40m | - / -12 | S57ACD | -20 / - | 2 | Partial capture |
| 10-06 06:22 | 40m | -16 / - | EI8HV | - / - | 2 | Partial capture |
| 10-06 05:41 | 40m | -16 / - | RA5AD | - / - | 2 | Partial capture |
| 10-06 05:07 | 60m | -17 / -6 | SP7MOC | -8 / +3 | 5 | ✓ Full exchange observed |
| 10-06 04:50 | 60m | -19 / -3 | DL5YEE | -15 / - | 5 | ✓ Closing observed |
| 10-06 04:45 | 60m | -23 / 0 | DG1FK | -15 / - | 2 | Partial capture |
| 10-06 04:34 | 60m | -24 / - | NP3RK | - / - | 3 | Partial capture |
| 10-06 03:44 | 80m | - / -12 | IN3WZS | +10 / - | 2 | ✓ Closing fragment |
| 10-05 08:06 | 40m | -22 / - | MW6JUQ | - / - | 2 | Partial capture |
| 10-05 08:03 | 40m | -22 / - | MW6JUQ | - / - | 2 | Partial capture |
| 10-05 08:00 | 40m | -22 / - | IQ2AAH | - / - | 3 | Partial capture |
| 10-05 07:16 | 40m | - / - | M9NTS | -18 / - | 2 | Partial capture |
| 10-05 07:08 | 40m | - / +7 | DJ5CL | -6 / - | 3 | ✓ Closing fragment |
| 10-05 06:55 | 40m | -20 / - | SP7WMI | - / - | 2 | Partial capture |
| 10-05 06:44 | 40m | - / -15 | OM3TBG | -16 / - | 3 | ✓ Closing fragment |
| 10-05 06:38 | 40m | -17 / - | SQ9SET | - / - | 5 | Partial capture |
| 10-05 06:32 | 40m | -18 / - | F4CQS | - / - | 4 | Partial capture |
| 10-05 06:22 | 40m | -16 / - | ZL2CA | - / - | 2 | Partial capture |
| 10-05 06:13 | 40m | -14 / - | SQ8AA | - / - | 3 | Partial capture |
| 10-05 06:09 | 40m | -11 / - | SQ8AA | - / - | 2 | Partial capture |
| 10-05 06:05 | 40m | -18 / -9 | 3Z4DX | +20 / - | 5 | ✓ Closing observed |
| 10-05 05:56 | 40m | - / -14 | IR8PR | -17 / - | 3 | Partial capture |
| 10-05 05:48 | 40m | -20 / - | M7OKF | - / - | 2 | Partial capture |
| 10-03 08:09 | 40m | - / -4 | DL6ZNG | 0 / - | 3 | ✓ Closing fragment |
| 10-03 04:52 | 40m | -14 / - | HG0NPJ | - / - | 2 | Partial capture |
| 10-03 04:42 | 40m | - / -5 | IQ9SZ/7 | -21 / - | 3 | Partial capture |
| 10-03 04:37 | 40m | -14 / - | YV5KG | - / - | 3 | Partial capture |
| 10-02 20:47 | 40m | -14 / - | RX6ACR | - / - | 5 | Partial capture |
| 10-02 20:41 | 40m | -18 / - | RC3D | - / - | 2 | Partial capture |
| 10-02 20:34 | 40m | -14 / - | RC3D | - / - | 4 | Partial capture |
| 10-02 20:26 | 40m | -18 / -19 | R5CB | 0 / -23 | 13 | ✓ Full exchange observed |
| 10-02 20:15 | 40m | -18 / - | 3Z4DX | - / - | 5 | Partial capture |
| 10-02 19:49 | 40m | - / -19 | R2SBI | +4 / - | 2 | ✓ Closing fragment |
| 10-02 19:29 | 40m | -13 / - | SP5TAE | - / -13 | 5 | Partial capture |
| 10-02 19:26 | 40m | -16 / -18 | RA3X | -16 / -18 | 7 | ✓ Full exchange observed |
| 10-02 19:10 | 40m | -15 / - | MW6YPO | - / - | 2 | Partial capture |
| 10-02 08:48 | 40m | - / -1 | DG5AAG | -16 / - | 2 | ✓ Closing fragment |
| 10-02 07:08 | 40m | - / +2 | DK3HJ | -11 / - | 3 | Partial capture |
| 10-02 06:36 | 40m | - / -16 | IK6ZDE | -20 / - | 2 | ✓ Closing fragment |
| 09-29 02:43 | 80m | - / -19 | IS0BQE | 0 / - | 2 | ✓ Closing fragment |
| 09-28 23:05 | 80m | -16 / - | DO8JB | - / - | 5 | Partial capture |
| 09-28 23:01 | 80m | -21 / - | DO8JB | - / - | 3 | Partial capture |
| 09-28 22:45 | 60m | -17 / - | IT9IST | - / -20 | 6 | ✓ Closing fragment |
| 09-28 22:26 | 60m | - / -15 | G6CUT | +2 / - | 4 | ✓ Closing fragment |
| 09-28 22:14 | 60m | - / -19 | 8S2C | -15 / - | 3 | ✓ Closing fragment |
| 09-28 21:50 | 60m | -11 / - | G6BCC | - / -11 | 3 | ✓ Closing fragment |
| 09-28 21:43 | 60m | -14 / - | GM0DYU | - / - | 12 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 054215 -17 1550 RA5AD DH1HF JO30 061600 -18 1550 E70N DH1HF R-18 062200 -15 1550 EI8HV DH1HF JO30 (x2) 080645 -18 1125 DH1HF OE1TKS RR73 081745 -23 1627 DH1HF S57ACD -12 (x2) 070815 -1 934 DH1HF DL6EI -11 (x2) 071545 +2 1126 DH1HF RA0QK/8 -13 072800 +1 651 DH1HF IN3IBW -01 (x2) 073300 -10 572 DH1HF IU3ACL RR73 080100 +1 2293 DH1HF DK6IM -22 (x2)
UTC dB Audio Message 043500 -24 1544 NP3RK DH1HF JO30 (x2) 044545 -23 1544 DG1FK DH1HF JO30 044600 -15 790 DH1HF DG1FK +00 045045 -16 1544 DL5YEE DH1HF JO30 (x2) 045200 -16 1449 DH1HF DL5YEE -03 (x2) 045245 -17 1544 DL5YEE DH1HF 73 045345 -23 1544 CQ DH1HF JO30 050715 -14 1544 SP7MOC DH1HF JO30 050730 -6 1144 DH1HF SP7MOC -06 050745 -19 1545 SP7MOC DH1HF R+03 050800 -9 1144 DH1HF SP7MOC RR73 050815 -17 1544 SP7MOC DH1HF 73
UTC dB Audio Message 225645 -24 1514 DO8JB DH1HF JO30 (x11) 024300 -1 2554 DH1HF IS0BQE -19 (x2) 034400 +10 305 DH1HF IN3WZS -12 (x2)
UTC dB Audio Message 103000 -10 2589 RW6A/P DH1HF 73 103030 -10 2588 CQ DH1HF JO30 103600 -7 2588 OY1HJ DH1HF JO30 (x6) 104030 -10 2588 ER1SKI/P DH1HF JO30 (x3) 105700 -13 2588 SP6HT DH1HF JO30 (x4)
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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