SM7DUZ — reception at SO8OO
Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.
FT8 activity
Receiver-side FT8 activity involving SM7DUZ, decoded by SO8OO in southeastern Poland. 40 FT8 messages attributed to this token as transmitter, on 80m, 40m, across 2 UTC dates in the available aggregate history. Observed between 2026-10-20 and 2026-10-22.
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 40 FT8 messages attributed to SM7DUZ as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (88%), followed by 40 m (13%). In this small sample, the estimated median decoder S/N was -9 dB; no usual signal pattern is inferred.
Overview
Bands
Last attributed message: 2026-10-22 19:41 UTC
Observed FT8 message patterns
- Attributed sample
- 40 messages
- Active dates
- 2 UTC dates
- Estimated median S/N
- -9 dB
- Estimated 10th-90th percentile
- -14 to -5 dB
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 2, moderate (-15 to -9 dB) 20, strong (≥ -8 dB) 18.
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. The sample does not meet the threshold for a recurring time or signal-pattern claim (20 attributed messages, three UTC dates and five distinct 15-minute windows).
Frequent counterpart tokens observed at SO8OO
Tokens most often paired with SM7DUZ in decoded directed-looking exchanges:
Most frequent locator attributed to SM7DUZ
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
- JO65 · 15 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 855 km (approx.)
- Last such locator decoded
- 2026-10-22 19:40 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 | SM7DUZ S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-22 19:43 | 80m | - / 0 | DO3VE | +13 / - | 5 | Partial capture |
| 10-22 19:40 | 80m | -8 / - | F1PBZ | - / - | 2 | Partial capture |
| 10-22 19:38 | 80m | -13 / -11 | OZ1KEF | 0 / +4 | 5 | ✓ Full exchange observed |
| 10-22 19:35 | 80m | -15 / - | SQ6MTB | - / -7 | 3 | ✓ Closing fragment |
| 10-22 19:30 | 80m | -5 / - | HB9DKG | - / -23 | 3 | ✓ Closing fragment |
| 10-22 19:28 | 80m | -7 / -10 | 9A2AJ | +2 / +8 | 7 | ✓ Full exchange observed |
| 10-22 19:26 | 80m | -5 / - | PA0LDE | -16 / -21 | 4 | ✓ Closing observed |
| 10-22 19:25 | 80m | -4 / -3 | ON1AEY | -5 / -6 | 5 | ✓ Full exchange observed |
| 10-22 19:23 | 80m | -12 / -2 | OK2WMC | +9 / - | 4 | ✓ Full exchange observed |
| 10-22 19:18 | 80m | - / -13 | DK8HC | -1 / - | 5 | ✓ Closing fragment |
| 10-22 19:18 | 80m | - / -16 | RW1AI | 0 / - | 3 | ✓ Closing fragment |
| 10-22 19:17 | 80m | -7 / -7 | SM7TZK | +6 / -3 | 5 | ✓ Full exchange observed |
| 10-22 19:15 | 80m | -7 / -11 | DO6AZ | +2 / +1 | 4 | ✓ Full exchange observed |
| 10-22 16:42 | 40m | - / -3 | I5UOA | -2 / - | 2 | ✓ Closing fragment |
| 10-22 16:41 | 40m | -8 / -11 | M0OXO | -6 / - | 5 | ✓ Full exchange observed |
| 10-22 16:32 | 40m | -7 / -13 | IU2SLI | -14 / +1 | 3 | ✓ Full exchange observed |
| 10-22 16:30 | 40m | - / +1 | DL8TV | +1 / - | 3 | ✓ Closing fragment |
| 10-22 16:29 | 40m | - / -8 | F8MRQ | +5 / - | 2 | ✓ Closing fragment |
| 10-22 16:28 | 40m | - / -11 | RW3ZO | -7 / - | 3 | Partial capture |
| 10-22 16:20 | 40m | - / -5 | ON6WDL | +18 / - | 2 | ✓ Closing fragment |
| 10-22 16:18 | 40m | - / -10 | 9A7BB | -6 / - | 4 | ✓ Closing fragment |
| 10-22 16:16 | 40m | - / -9 | 9A4ZM | -1 / - | 2 | ✓ Closing fragment |
| 10-22 16:14 | 40m | - / -10 | LX/DF2SD | -4 / - | 2 | Partial capture |
| 10-22 05:33 | 40m | - / -13 | CT7AXN | -21 / - | 2 | ✓ Closing fragment |
| 10-22 04:54 | 40m | - / -11 | UB3DQR | -5 / - | 2 | Partial capture |
| 10-22 04:43 | 40m | - / -12 | R3AT | +2 / - | 2 | ✓ Closing fragment |
| 10-22 04:00 | 40m | - / -17 | SV3AUW | -13 / - | 2 | Partial capture |
| 10-22 03:45 | 40m | - / -13 | EA3IAZ | -12 / - | 2 | ✓ Closing fragment |
| 10-21 19:46 | 40m | - / +6 | IW4DNI | +4 / - | 2 | ✓ Closing fragment |
| 10-20 17:18 | 60m | - / - | ON7GB | -2 / - | 2 | Partial capture |
| 10-20 17:14 | 60m | - / - | 9A4ZM | 0 / - | 2 | Partial capture |
| 10-20 17:14 | 60m | - / +2 | DK7ZT | +2 / - | 2 | Partial capture |
| 10-20 17:13 | 60m | - / -17 | DK3GI | +7 / - | 3 | ✓ Closing fragment |
| 10-20 17:12 | 60m | - / - | ON7GB | -2 / - | 4 | Partial capture |
| 10-20 17:11 | 60m | - / -5 | LA7HJA | -2 / - | 2 | ✓ Closing fragment |
| 10-20 07:33 | 40m | - / - | PE1NPS | -10 / - | 2 | Partial capture |
| 10-20 07:29 | 40m | - / -1 | SP3BPC | -1 / - | 6 | ✓ Closing fragment |
| 10-20 07:27 | 40m | - / 0 | DK4TM | -2 / - | 6 | ✓ Closing fragment |
| 10-20 07:27 | 40m | - / -8 | HB9AMO | -2 / - | 6 | ✓ Closing fragment |
| 10-20 07:25 | 40m | - / - | HA7TM | +14 / - | 2 | Partial capture |
| 10-20 07:24 | 40m | - / - | DL2MIJ | -5 / - | 2 | ✓ Closing fragment |
| 10-17 20:26 | 40m | - / -9 | YO4NT | -6 / - | 2 | ✓ Closing fragment |
| 10-17 10:19 | 10m | - / -6 | CR7BRV | -10 / - | 2 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 193715 -13 750 R4RM SM7DUZ JO65 193745 -13 750 R1QF/P SM7DUZ JO65 193845 -11 751 OZ1KEF SM7DUZ JO65 193900 +2 2549 SM7DUZ OZ1KEF -11 193915 -13 751 OZ1KEF SM7DUZ R+04 193930 -2 2549 SM7DUZ OZ1KEF RR73 193945 -14 751 OZ1KEF SM7DUZ 73 194015 -7 751 F1PBZ SM7DUZ JO65 (x2) 194145 -9 751 DO8JB SM7DUZ R+11 194330 +16 595 SM7DUZ DO3VE +00 (x5)
UTC dB Audio Message 163015 +1 2709 SM7DUZ F8MRQ RR73 163045 +5 1972 SM7DUZ DL8TV JN49 (x3) 163245 -14 1316 SM7DUZ IU2SLI -13 163300 -7 783 IU2SLI SM7DUZ R+01 163315 -15 1316 SM7DUZ IU2SLI RR73 163445 -2 1812 SM7DUZ IK0AGU -10 164115 -5 1771 SM7DUZ M0OXO -11 (x2) 164200 -7 784 M0OXO SM7DUZ R+15 164215 -8 1771 SM7DUZ M0OXO RR73 164230 -8 784 M0OXO SM7DUZ 73 164245 -2 783 SM7DUZ I5UOA -03 (x2)
UTC dB Audio Message 171130 -2 1018 SM7DUZ LA7HJA -05 (x2) 171230 -1 1399 SM7DUZ ON7GB JO21 (x3) 171330 +6 805 SM7DUZ DK3GI JN59 171400 -2 1838 SM7DUZ ON7GB JO21 171400 +0 2483 SM7DUZ DK7ZT +02 171400 +6 805 SM7DUZ DK3GI R-17 171430 +5 2483 SM7DUZ DK7ZT +02 171430 +9 805 SM7DUZ DK3GI 73 171430 +3 1835 SM7DUZ 9A4ZM JN86 (x2) 171800 -2 1838 SM7DUZ ON7GB JO21 (x2)
UTC dB Audio Message 101930 -11 1407 SM7DUZ CR7BRV -06 (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.
CW
No CW receptions recorded for this callsign in the last 30 days.
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