SM7XON — 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 SM7XON, decoded by SO8OO in southeastern Poland. 1,483 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, across 54 UTC dates in the available aggregate history. Observed between 2026-06-09 and 2026-11-05.
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 1,483 FT8 messages attributed to SM7XON as the transmitting token by decoded message structure across 54 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (37%), followed by 40 m (25%) and 60 m (21%). Most decodes (80%) fell within the six-hour window 17:00-23:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -9 dB.
Overview
Bands
Last attributed message: 2026-11-05 21:28 UTC
Observed FT8 message patterns
- Attributed sample
- 1,483 messages
- Active dates
- 54 UTC dates
- Estimated median S/N
- -9 dB
- Estimated 10th-90th percentile
- -18 to +0.2 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 283, moderate (-15 to -9 dB) 510, strong (≥ -8 dB) 690.
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 SM7XON 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 SM7XON
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
- JO87 · 701 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 898 km (approx.)
- Last such locator decoded
- 2026-11-05 21:28 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 | SM7XON S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 11-05 21:24 | 160m | 0 / -11 | UA3FH | -22 / -18 | 3 | ✓ Full exchange observed |
| 11-05 21:17 | 80m | - / +1 | ON5MX | -19 / - | 6 | ✓ Closing fragment |
| 11-05 21:15 | 80m | -8 / -10 | SP8HDC | -3 / +4 | 4 | ✓ Full exchange observed |
| 11-05 21:13 | 80m | -6 / -13 | YO2CR | -9 / - | 5 | ✓ Closing observed |
| 11-05 21:12 | 80m | -2 / -14 | DO1DLE | -13 / - | 2 | ✓ Closing observed |
| 11-05 21:10 | 80m | - / -6 | UT0CK | -12 / - | 3 | ✓ Closing fragment |
| 11-05 21:02 | 60m | - / -14 | F1IQH | -14 / - | 3 | ✓ Closing fragment |
| 11-05 20:59 | 60m | - / - | OE8PIT | +17 / - | 2 | ✓ Closing fragment |
| 11-05 20:42 | 60m | - / -20 | DH0BRO | +8 / - | 3 | ✓ Closing fragment |
| 11-05 20:26 | 40m | -4 / - | DL3ND | - / -8 | 3 | Partial capture |
| 11-05 20:24 | 40m | -5 / - | GJ0KYZ | -6 / -11 | 2 | ✓ Closing observed |
| 11-05 20:19 | 40m | -6 / - | UT2UB | -11 / +8 | 3 | Partial capture |
| 11-05 20:18 | 40m | -12 / -11 | ON7AC | -18 / - | 3 | ✓ Closing observed |
| 11-05 20:10 | 40m | -9 / -24 | S55A | -6 / -17 | 5 | ✓ Full exchange observed |
| 11-05 20:05 | 40m | -8 / - | SQ8MSX | - / -4 | 2 | ✓ Closing fragment |
| 11-05 19:59 | 40m | -11 / - | UW8SM | - / +5 | 2 | ✓ Closing fragment |
| 11-05 19:59 | 40m | -11 / -16 | SQ1EIC | -9 / +3 | 9 | ✓ Full exchange observed |
| 11-05 19:58 | 40m | -12 / - | SP9SOS | - / -12 | 2 | ✓ Closing fragment |
| 11-05 19:57 | 40m | -12 / - | DA0M | - / -18 | 2 | Partial capture |
| 11-05 19:56 | 40m | -13 / -6 | PA0GSP | -20 / -5 | 3 | ✓ Full exchange observed |
| 11-05 19:52 | 40m | -16 / - | DG8YBJ | - / -16 | 4 | Partial capture |
| 11-05 19:50 | 40m | -18 / +2 | RJ3DC | -8 / - | 4 | ✓ Closing observed |
| 11-04 21:34 | 40m | - / -7 | ON7DE | -19 / - | 11 | Partial capture |
| 11-04 20:57 | 160m | -8 / -15 | EA3A | -2 / -8 | 3 | ✓ Full exchange observed |
| 11-04 20:53 | 160m | -2 / -6 | HB9CXZ | +7 / - | 6 | ✓ Full exchange observed |
| 11-04 20:50 | 160m | -6 / -11 | OK7BB | +3 / -4 | 5 | ✓ Full exchange observed |
| 11-04 20:48 | 160m | -2 / - | RK3BM | - / -3 | 2 | ✓ Closing fragment |
| 11-04 20:09 | 40m | - / - | IU5SCG | -13 / - | 2 | Partial capture |
| 11-04 20:07 | 40m | - / -24 | 9A3TGT | -15 / - | 2 | Partial capture |
| 11-04 19:31 | 40m | - / - | ON1ANZ | +4 / - | 2 | Partial capture |
| 11-03 06:17 | 80m | - / -17 | SQ9EJ | +5 / - | 4 | ✓ Closing fragment |
| 11-02 22:52 | 80m | -8 / - | IU2THY | +17 / +5 | 7 | Partial capture |
| 11-02 22:52 | 80m | -10 / -3 | UX7UU | +10 / - | 7 | ✓ Full exchange observed |
| 11-02 22:48 | 80m | -7 / - | RA4FUT | -24 / -10 | 5 | ✓ Closing observed |
| 11-02 22:46 | 80m | -4 / -8 | ON4MAP | -9 / - | 7 | ✓ Closing observed |
| 11-02 22:44 | 80m | -2 / -22 | F1IQH | -18 / -19 | 4 | ✓ Full exchange observed |
| 11-02 22:42 | 80m | -8 / - | R9OAE | - / -17 | 3 | Partial capture |
| 11-02 22:32 | 40m | - / -11 | UA6YW | -8 / - | 2 | ✓ Closing fragment |
| 11-02 22:18 | 60m | - / -19 | DL7UDK | +3 / - | 4 | ✓ Closing fragment |
| 11-02 22:08 | 160m | -10 / - | 6W/IK2HKT | - / - | 2 | Partial capture |
| 11-02 22:04 | 160m | -11 / - | T77NM | - / - | 2 | Partial capture |
| 11-02 21:58 | 160m | -11 / +2 | SP9YGD | +9 / +10 | 4 | ✓ Full exchange observed |
| 11-02 21:54 | 160m | -12 / - | 6W/IK2HKT | - / - | 2 | Partial capture |
| 11-02 19:46 | 80m | 0 / - | TK/DH7SB | - / - | 2 | Partial capture |
| 11-02 19:31 | 160m | - / - | SQ2BXI | -24 / - | 2 | Partial capture |
| 11-02 19:29 | 160m | -12 / - | SQ3LMR | -16 / +4 | 8 | Partial capture |
| 11-02 19:27 | 160m | -9 / - | DO1SWC | -24 / -14 | 4 | ✓ Closing observed |
| 11-02 19:25 | 160m | -12 / -15 | UA1TAN | -13 / -2 | 5 | ✓ Full exchange observed |
| 11-02 19:24 | 160m | -13 / -21 | DO9BLX | +5 / -2 | 7 | ✓ Full exchange observed |
| 11-02 19:22 | 160m | -12 / -3 | EI4DQ | +6 / +6 | 5 | ✓ Full exchange observed |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 201900 -13 2078 SM7XON UT2UB KO50 201915 -13 930 ON7AC SM7XON RR73 201930 -9 2078 SM7XON UT2UB KO50 202015 -10 930 CQ SM7XON JO87 202115 -6 930 UT2UB SM7XON +08 202345 -11 930 CQ SM7XON JO87 ? a1 202415 -5 930 GJ0KYZ SM7XON R-11 202430 -6 931 SM7XON GJ0KYZ RR73 202515 -5 930 CQ SM7XON JO87 (x2) 202645 -5 930 DL3ND SM7XON -08 (x3) 202915 -7 930 CQ SM7XON JO87 213430 -7 2357 SM7XON DL9VN JO41
UTC dB Audio Message 205630 +1 955 CQ SM7XON JO87 (x2) 205730 -8 955 EA3A SM7XON -08 205745 -2 2598 SM7XON EA3A R-15 205800 -7 955 EA3A SM7XON RR73 212345 -6 1039 CQ SM7XON JO87 (x2) 212445 -1 1039 UA3FH SM7XON -18 212500 -22 2156 SM7XON UA3FH R-11 212515 +0 1038 UA3FH SM7XON RR73 212545 -1 1038 CQ SM7XON JO87 (x5)
UTC dB Audio Message 211500 -8 1088 SM7XON SP8HDC KO00 211515 -8 1088 SP8HDC SM7XON +04 211530 -4 1088 SM7XON SP8HDC R-10 (x2) 211700 -16 1354 SM7XON ON5MX JO20 (x6) 212015 +0 1040 CQ SM7XON JO87 a1 (x5)
UTC dB Audio Message 204145 -20 1183 CQ SM7XON JO87 204200 +9 518 SM7XON DH0BRO JO62 (x3) 204715 -22 1183 Z30A SM7XON JO87 205030 -20 1794 SM7XON SP1RKT 73 205815 -18 1183 CQ SM7XON JO87 205900 +19 334 SM7XON OE8PIT JN66 (x2) 210015 -19 1183 CQ SM7XON JO87 210200 -15 1183 SM7XON F1IQH JN27 (x3) 210345 -21 1183 Z30A SM7XON JO87 210445 -21 1183 CQ SM7XON JO87
UTC dB Audio Message 193530 -11 1685 SM7XON IK2YYO JN55 (x3) 123830 -12 1778 SM7XON YB1HR -11 (x2) 124500 -15 1245 SM7XON YE1AJE -16 (x2) 143930 -7 1927 SM7XON CT2GQA IM58 (x5) 113215 -4 1798 SM7XON EA7Z IM67 (x3)
UTC dB Audio Message 170930 +6 613 IU4COO SM7XON RR73 170945 -2 2576 SM7XON IU4COO 73 165915 -9 1372 SM7XON F4DXP R-10 185445 +0 1906 SM7XON EA5KV -13 185515 -1 2357 SM7XON EA8ACW IL28 185545 -2 1905 SM7XON EA5KV RR73 185615 +3 2358 SM7XON EA8ACW IL28 (x3) 190615 -8 579 SM7XON RU3FM R-19 190845 -8 2171 SM7XON EA1FRE IN72 (x3) 191015 -10 1895 SM7XON EA1ISQ IN73 191415 -6 929 SM7XON CT2IUJ IM59
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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