SM7XON — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving SM7XON, decoded by SO8OO in southeastern Poland. 736 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, across 35 UTC dates in the available aggregate history. Observed between 2026-06-09 and 2026-09-11.
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 736 FT8 messages attributed to SM7XON as the transmitting token by decoded message structure across 35 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (34%), followed by 60 m (26%) and 40 m (25%). Most decodes (76%) fell within the six-hour window 16:00-22:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -9.1 dB.
Overview
Bands
Last attributed message: 2026-09-11 21:30 UTC
Observed FT8 message patterns
- Attributed sample
- 736 messages
- Active dates
- 35 UTC dates
- Estimated median S/N
- -9.1 dB
- Estimated 10th-90th percentile
- -18.9 to +2 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 154, moderate (-15 to -9 dB) 249, strong (≥ -8 dB) 333.
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 · 361 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 898 km (approx.)
- Last such locator decoded
- 2026-09-11 21:30 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 |
|---|---|---|---|---|---|---|
| 09-11 21:08 | 80m | - / - | SP3TD | -2 / - | 2 | Partial capture |
| 09-11 21:05 | 80m | +1 / - | OZ5AGJ | -4 / -11 | 3 | ✓ Closing observed |
| 09-11 21:00 | 160m | -17 / -9 | DO3PKE | -23 / -6 | 2 | Partial capture |
| 09-11 20:58 | 160m | - / -19 | ON8DM | +5 / - | 3 | ✓ Closing fragment |
| 09-11 20:44 | 160m | -21 / +10 | OH2BGD | -2 / +5 | 4 | ✓ Full exchange observed |
| 09-11 20:39 | 80m | +1 / - | HB3YBG | -7 / -15 | 4 | ✓ Closing observed |
| 09-11 20:38 | 80m | +5 / +5 | DJ1NE | -15 / -19 | 5 | ✓ Full exchange observed |
| 09-11 20:36 | 80m | +6 / -2 | UF2F | +5 / - | 3 | ✓ Closing observed |
| 09-11 20:34 | 80m | +3 / - | R3VE | -5 / -13 | 4 | ✓ Closing observed |
| 09-11 20:31 | 80m | +6 / - | Z62NS | - / - | 2 | Partial capture |
| 09-11 19:28 | 60m | -10 / - | 9A60CBM | - / +5 | 2 | Partial capture |
| 09-11 19:27 | 60m | -11 / - | G1HGD | - / -19 | 2 | ✓ Closing fragment |
| 09-11 19:25 | 60m | -10 / +10 | DN4TG | +2 / +8 | 5 | ✓ Full exchange observed |
| 09-11 19:23 | 60m | -10 / +8 | G3SUY | -5 / -6 | 4 | ✓ Full exchange observed |
| 09-11 19:22 | 60m | -9 / - | G0JEI | - / -10 | 2 | ✓ Closing fragment |
| 09-11 19:20 | 60m | -14 / - | ON7PM | - / -15 | 2 | ✓ Closing fragment |
| 09-11 19:18 | 60m | -14 / -7 | GE7RTI | -11 / -16 | 7 | ✓ Full exchange observed |
| 09-11 19:18 | 60m | -14 / +1 | SP6EFY | +1 / - | 5 | ✓ Full exchange observed |
| 09-11 19:16 | 60m | -9 / - | G5BOB | - / - | 2 | Partial capture |
| 09-11 19:14 | 60m | -9 / -7 | F5RMK | -6 / -4 | 5 | ✓ Full exchange observed |
| 09-11 19:13 | 60m | -9 / +4 | DL7TY | -2 / +6 | 5 | ✓ Full exchange observed |
| 09-11 19:11 | 60m | -10 / -2 | SP9UOP | +4 / +4 | 5 | ✓ Full exchange observed |
| 09-11 19:08 | 60m | -8 / +8 | OH3GBW | -1 / -10 | 6 | ✓ Full exchange observed |
| 09-11 19:08 | 60m | -8 / - | LY8O | - / - | 3 | ✓ Closing fragment |
| 09-11 19:05 | 60m | -10 / - | DF4BJ | -23 / -9 | 4 | ✓ Closing observed |
| 09-11 19:03 | 60m | -12 / - | DL5RDP | +4 / +8 | 5 | ✓ Full exchange observed |
| 09-11 19:02 | 60m | -12 / +8 | M5RJC | 0 / -7 | 5 | ✓ Full exchange observed |
| 09-11 18:59 | 60m | -10 / - | <...> | - / -13 | 2 | Partial capture |
| 09-11 18:56 | 60m | -8 / 0 | SP9CSE | +13 / 0 | 5 | ✓ Full exchange observed |
| 09-11 18:31 | 60m | -9 / +7 | SA6DST | -15 / +6 | 5 | ✓ Full exchange observed |
| 09-11 18:29 | 60m | -9 / - | SM4XDJ | - / -7 | 3 | ✓ Closing fragment |
| 09-11 18:27 | 60m | -8 / -1 | DL7UKM | -2 / -4 | 5 | ✓ Full exchange observed |
| 09-11 18:25 | 60m | -12 / +5 | OH7JEV | -8 / -9 | 5 | ✓ Full exchange observed |
| 09-11 18:21 | 60m | -10 / +5 | SP3RK | -4 / +1 | 9 | ✓ Full exchange observed |
| 09-11 18:20 | 60m | -9 / +1 | DF9AV/P | -19 / - | 9 | ✓ Closing observed |
| 09-11 18:20 | 60m | - / - | SP2BZ | -16 / - | 2 | Partial capture |
| 09-09 17:36 | 60m | -18 / -10 | F6AUS | -20 / -8 | 4 | ✓ Full exchange observed |
| 09-09 17:34 | 60m | -17 / -7 | G6GA | -8 / -3 | 6 | ✓ Full exchange observed |
| 09-09 17:31 | 60m | -14 / - | DJ1PQ | - / -12 | 3 | Partial capture |
| 09-09 17:29 | 60m | -14 / +5 | DL2AOM | -22 / -11 | 4 | ✓ Full exchange observed |
| 09-09 17:10 | 60m | - / -15 | IK2TDM | -12 / - | 3 | ✓ Closing fragment |
| 09-09 17:06 | 60m | - / +6 | DK2YCT | -12 / - | 2 | ✓ Closing fragment |
| 09-09 17:00 | 60m | - / +6 | LB5WB | -13 / - | 3 | ✓ Closing fragment |
| 09-09 16:57 | 60m | -14 / - | Z68PX | - / - | 4 | Partial capture |
| 09-03 19:46 | 40m | -10 / - | CN8NS | - / - | 5 | Partial capture |
| 09-03 18:22 | 80m | +2 / - | SA7PGN | +2 / -10 | 6 | ✓ Full exchange observed |
| 09-03 18:14 | 80m | -1 / - | HB0CC | - / - | 2 | Partial capture |
| 09-03 18:12 | 80m | -5 / -13 | RZ3ZY | +6 / - | 3 | ✓ Closing observed |
| 09-03 18:09 | 80m | -1 / - | BG8SRK | - / - | 2 | Partial capture |
| 09-03 17:42 | 80m | - / -17 | OK1YQ | +12 / - | 6 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 183415 -15 1599 DL1IP SM7XON RR73 183430 +1 1599 SM7XON DL1IP 73 183530 +0 1935 SM7XON SN1A 73 185600 +13 2355 SM7XON DF8RU JN68 185600 +6 383 SM7XON PA3FR JO33 (x3) 185900 +8 1221 SM7XON DF8RU R-03 (x2) 194615 -14 2188 CN8NS SM7XON JO87 (x5) 213015 -14 2075 HZ1TT SM7XON JO87
UTC dB Audio Message 203915 +7 1838 DJ1NE SM7XON RR73 203930 -13 1922 SM7XON DJ1NE 73 203945 +2 1838 HB3YBG SM7XON -15 (x3) 204200 -7 1215 SM7XON HB3YBG 73 210415 +1 1763 CQ SM7XON JO87 210545 +1 1763 OZ5AGJ SM7XON -11 (x2) 210630 -4 1763 SM7XON OZ5AGJ 73 210800 -5 750 SM7XON SP3TD JO71 210800 -2 1762 SM7XON LB6MJ JO48 210830 +0 750 SM7XON SP3TD JO71 210945 +4 1763 CQ SM7XON JO87 (x2)
UTC dB Audio Message 204415 -20 1722 CQ SM7XON JO87 a1 204430 -4 2487 SM7XON OH2BGD KP20 204445 -21 1722 OH2BGD SM7XON +05 204500 -3 2487 SM7XON OH2BGD R+10 (x2) 205715 -16 1723 CQ SM7XON JO87 (x2) 205830 +4 2637 SM7XON ON8DM JO10 (x3) 210015 -18 1722 CQ SM7XON JO87 210045 -17 1722 DO3PKE SM7XON -06 210100 -23 1396 SM7XON DO3PKE R-09 210145 -20 1722 CQ SM7XON JO87 (x2)
UTC dB Audio Message 192400 -4 977 SM7XON G3SUY 73 192415 -14 2098 CQ SM7XON JO87 (x2) 192500 +2 2238 SM7XON DN4TG JO52 192515 -7 2099 DN4TG SM7XON +08 192530 +4 1922 SM7XON DN4TG R+10 192545 -13 2099 DN4TG SM7XON RR73 192600 +1 1922 SM7XON DN4TG 73 192615 -15 2099 CQ SM7XON JO87 (x2) 192715 -8 2099 G1HGD SM7XON -19 (x2) 192845 -11 2098 9A60CBM SM7XON JO87 192900 +6 1595 SM7XON SN31ROT -02 192915 -10 2099 9A60CBM SM7XON R+05
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
UTC dB Audio Message 135430 -7 420 SM7XON TK5K RR73 193400 -19 2157 SM7XON DN9OPA JN38 193430 -12 1685 SM7XON IK2YYO JN55 (x5)
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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