DK7ZT — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving DK7ZT, decoded by SO8OO in southeastern Poland. 57,373 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, 10m, across 97 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-10-02.
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 57,373 FT8 messages attributed to DK7ZT as the transmitting token by decoded message structure across 97 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (55%), followed by 80 m (23%) and 20 m (9%). The busiest six-hour window was 18:00-00:00 UTC, containing 41% of decodes. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -9 dB.
Overview
Bands
Last attributed message: 2026-10-02 05:39 UTC
Observed FT8 message patterns
- Attributed sample
- 57,373 messages
- Active dates
- 97 UTC dates
- Estimated median S/N
- -9 dB
- Estimated 10th-90th percentile
- -20 to +5 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 15,297, moderate (-15 to -9 dB) 14,100, strong (≥ -8 dB) 27,976.
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 DK7ZT 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 DK7ZT
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
- JO40 · 563 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 911 km (approx.)
- Last such locator decoded
- 2026-08-19 03:59 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 | DK7ZT S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-02 05:36 | 40m | -5 / - | IQ9SZ/7 | - / +5 | 4 | Partial capture |
| 10-02 05:35 | 40m | -5 / - | XE1YO | - / -20 | 2 | Partial capture |
| 10-02 05:34 | 80m | +1 / - | EG1FAP | - / -6 | 3 | ✓ Closing fragment |
| 10-02 05:31 | 80m | +4 / - | N0BUZ | - / -25 | 2 | Partial capture |
| 10-02 05:30 | 60m | -15 / - | K5SRT | - / -19 | 3 | Partial capture |
| 10-02 05:29 | 60m | -14 / -1 | M0GDX | -14 / +9 | 4 | ✓ Full exchange observed |
| 10-02 05:29 | 80m | +4 / - | PA3RNV | - / -10 | 5 | Partial capture |
| 10-02 05:24 | 80m | +6 / - | N0BUZ | - / -18 | 5 | Partial capture |
| 10-02 05:22 | 40m | -9 / - | KB3DQI | - / -15 | 3 | Partial capture |
| 10-02 05:21 | 80m | -9 / - | AB9DR | - / -10 | 3 | Partial capture |
| 10-02 05:21 | 40m | -3 / - | N5AJY | - / -13 | 2 | Partial capture |
| 10-02 05:18 | 40m | -7 / - | W5RBD | - / -6 | 2 | ✓ Closing fragment |
| 10-02 05:18 | 80m | -12 / - | N4DOU | - / -22 | 3 | ✓ Closing fragment |
| 10-02 05:16 | 40m | -5 / - | K5KXF | - / -25 | 3 | Partial capture |
| 10-02 05:16 | 80m | +4 / - | LA7XGA | - / -7 | 2 | ✓ Closing fragment |
| 10-02 05:13 | 40m | -6 / - | YV4PPC | - / -12 | 3 | Partial capture |
| 10-02 05:11 | 40m | -1 / - | K7NN | - / -15 | 4 | Partial capture |
| 10-02 05:04 | 40m | -11 / - | F5NBU | - / -1 | 4 | Partial capture |
| 10-02 05:01 | 80m | +9 / - | N0BUZ | - / -13 | 3 | Partial capture |
| 10-02 04:51 | 80m | +6 / - | N0BUZ | - / -9 | 8 | Partial capture |
| 10-02 04:49 | 60m | -13 / - | K5SRT | - / -9 | 4 | Partial capture |
| 10-02 04:45 | 80m | +12 / - | N0BUZ | - / -6 | 4 | Partial capture |
| 10-02 04:43 | 80m | +8 / - | KM0T | - / -6 | 3 | Partial capture |
| 10-02 04:32 | 60m | -10 / - | EW6DO | - / -15 | 2 | ✓ Closing fragment |
| 10-02 04:27 | 160m | -19 / +4 | DA125RH | -9 / +7 | 2 | Partial capture |
| 10-02 04:25 | 60m | -14 / - | K5SRT | - / -3 | 2 | Partial capture |
| 10-02 04:19 | 160m | +11 / - | EC5M | - / -22 | 5 | Partial capture |
| 10-02 04:14 | 80m | +7 / - | N0BUZ | - / -8 | 3 | Partial capture |
| 10-02 04:09 | 160m | -1 / - | NI4Z | - / -21 | 5 | Partial capture |
| 10-02 04:01 | 80m | +10 / - | N0BUZ | - / -11 | 5 | Partial capture |
| 10-02 03:57 | 60m | -12 / - | KG5FRR | - / -11 | 2 | Partial capture |
| 10-02 03:54 | 60m | -14 / - | HI3RRR | - / -14 | 4 | Partial capture |
| 10-02 03:42 | 80m | -4 / - | N0BUZ | - / -20 | 4 | Partial capture |
| 10-02 03:22 | 80m | -1 / - | N0BUZ | - / -19 | 5 | Partial capture |
| 10-02 03:14 | 80m | +4 / - | KR4US | - / -8 | 2 | Partial capture |
| 10-02 03:12 | 80m | +10 / -14 | 3Z6SK | -4 / - | 3 | ✓ Closing observed |
| 10-02 03:11 | 80m | +11 / - | N0YO | - / -3 | 3 | ✓ Closing fragment |
| 10-02 03:00 | 160m | -1 / -8 | 3Z6SK | -3 / - | 3 | ✓ Closing observed |
| 10-02 02:53 | 160m | +2 / - | MW6IUT | - / -20 | 5 | Partial capture |
| 10-02 02:40 | 160m | +2 / - | W5AP | - / -18 | 3 | Partial capture |
| 10-02 02:35 | 80m | +6 / - | N4KES | - / -11 | 4 | Partial capture |
| 10-02 02:24 | 80m | +13 / - | K0BZ | - / -18 | 4 | Partial capture |
| 10-02 02:20 | 80m | +11 / - | KB3BXL | - / -16 | 5 | Partial capture |
| 10-02 02:17 | 80m | +5 / -12 | K3FAW | -24 / -10 | 6 | Partial capture |
| 10-02 02:15 | 80m | +4 / - | KB3BXL | - / -18 | 2 | Partial capture |
| 10-02 02:08 | 80m | +10 / - | KB3BXL | - / -14 | 5 | Partial capture |
| 10-02 02:01 | 80m | +8 / - | KB3BXL | - / -19 | 5 | Partial capture |
| 10-02 01:55 | 80m | -3 / - | K6AFW | - / -7 | 2 | Partial capture |
| 10-02 01:40 | 80m | +6 / - | N0YO | - / -12 | 5 | Partial capture |
| 10-02 01:11 | 80m | +4 / - | AB9DR | - / +1 | 5 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 051845 -8 1907 W5RBD DK7ZT -06 (x2) 052100 -1 1907 N5AJY DK7ZT -13 (x2) 052245 -7 1907 KB3DQI DK7ZT -15 (x3) 052430 -10 1907 OH1JJ/M DK7ZT -07 052530 -6 1907 <IQ9SZ/7> DK7ZT -07 053500 -6 1907 XE1YO DK7ZT -20 (x2) 053645 +0 1907 IQ9SZ/7 DK7ZT +12 (x4)
UTC dB Audio Message 052445 +2 904 N0BUZ DK7ZT -18 (x5) 052915 +10 649 PA3RNV DK7ZT -10 (x5) 053145 +1 723 N0BUZ DK7ZT -25 (x2) 053430 +2 2004 EG1FAP DK7ZT -06 (x3)
UTC dB Audio Message 042615 -14 1902 K5SRT DK7ZT -03 042845 -13 1902 AG4H DK7ZT RR73 043215 -16 1902 EW6DO DK7ZT -15 (x2) 044900 -19 1902 K5SRT DK7ZT -09 (x4) 052915 -14 1902 M0GDX DK7ZT +09 052930 -12 1051 DK7ZT M0GDX R-01 052945 -13 1902 M0GDX DK7ZT RR73 053000 -17 1051 DK7ZT M0GDX 73 053030 -13 1902 K5SRT DK7ZT -19 (x3)
UTC dB Audio Message 030030 +1 1243 DK7ZT 3Z6SK R-08 030045 -1 1241 3Z6SK DK7ZT RR73 030100 -7 1242 DK7ZT 3Z6SK 73 040930 +0 654 NI4Z DK7ZT -21 (x5) 041915 +8 560 EC5M DK7ZT -22 (x5) 042700 -19 1653 DA125RH DK7ZT +07 042815 -9 1653 DK7ZT DA125RH R+04
UTC dB Audio Message 084500 -24 1851 DK7ZT F6AOJ R-24 084915 -13 2290 DK7ZT IZ4CCL 73 091630 +10 557 DK7ZT Z34K R-15 (x3) 093245 -11 2176 DK7ZT IU2IKT R+01 093800 -6 766 DK7ZT IZ5IME R+10 (x2) 103315 -18 1489 DK7ZT IK1LBL R-11 (x2) 104500 -11 610 IZ4TOA DK7ZT +03 (x2) 104615 +4 609 DK7ZT IZ4TOA R-11 (x2) 142700 +3 2737 DK7ZT CN8WK R-10
UTC dB Audio Message 232230 -19 1395 K4HFY DK7ZT -16 (x3) 232400 -17 1395 K2VG DK7ZT -18 (x4) 232930 -13 1927 N9SNU DK7ZT -09 (x3) 233145 -17 1843 K4KEV DK7ZT -07 (x3) 233700 -4 2009 ZZ2DX DK7ZT -18 (x2)
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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