SM5CBM — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving SM5CBM, decoded by SO8OO in southeastern Poland. 230 FT8 messages attributed to this token as transmitter, on 80m, across 7 UTC dates in the available aggregate history. Observed between 2026-09-29 and 2026-10-05.
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 230 FT8 messages attributed to SM5CBM as the transmitting token by decoded message structure across 7 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (100%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (96%); the estimated median was +4 dB.
Overview
Observed FT8 message patterns
- Attributed sample
- 230 messages
- Active dates
- 7 UTC dates
- Estimated median S/N
- +4 dB
- Estimated 10th-90th percentile
- -5 to +13 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 4, moderate (-15 to -9 dB) 6, strong (≥ -8 dB) 220.
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 SM5CBM 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 SM5CBM
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
- JO99 · 131 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,078 km (approx.)
- Last such locator decoded
- 2026-10-05 05:16 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 | SM5CBM S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-05 05:16 | 80m | +2 / +3 | G7RHF | -18 / -20 | 4 | ✓ Full exchange observed |
| 10-05 05:14 | 80m | +2 / - | S55X | - / - | 2 | Partial capture |
| 10-05 05:12 | 80m | -1 / - | UA4FKT | -24 / - | 2 | ✓ Closing observed |
| 10-05 05:10 | 80m | -6 / -2 | PA1CTW | -8 / - | 3 | ✓ Closing observed |
| 10-05 05:09 | 80m | 0 / +2 | HB9IKO | -8 / - | 4 | ✓ Closing observed |
| 10-05 05:07 | 80m | -3 / +9 | MI0NWA | -8 / +6 | 4 | ✓ Full exchange observed |
| 10-05 05:05 | 80m | 0 / - | N0BUZ | - / - | 2 | Partial capture |
| 10-04 05:00 | 80m | -2 / - | C5R | - / -21 | 5 | Partial capture |
| 10-04 04:56 | 80m | +7 / - | V51WH | - / -25 | 8 | Partial capture |
| 10-04 04:54 | 80m | +8 / - | CT7AUT | - / -8 | 3 | ✓ Closing fragment |
| 10-04 04:48 | 80m | +10 / - | RO2E/P | - / -12 | 5 | Partial capture |
| 10-04 04:48 | 80m | - / -13 | K6VHF/HR9 | -14 / - | 2 | Partial capture |
| 10-04 04:45 | 80m | +11 / +10 | Z62NS | 0 / 0 | 3 | ✓ Full exchange observed |
| 10-04 04:41 | 80m | +7 / - | WZ4K | - / - | 4 | Partial capture |
| 10-04 04:40 | 80m | - / - | UA4FKT | -10 / - | 2 | Partial capture |
| 10-04 04:39 | 80m | +9 / - | F5RAV | - / +10 | 4 | ✓ Closing fragment |
| 10-04 04:36 | 80m | +8 / - | W2SZ | - / -16 | 4 | Partial capture |
| 10-04 04:35 | 80m | +10 / - | K4YT | - / -11 | 3 | ✓ Closing fragment |
| 10-03 04:50 | 80m | -4 / - | N3FCP | -19 / - | 3 | ✓ Closing observed |
| 10-03 04:47 | 80m | -5 / - | W2SZ | - / -2 | 5 | Partial capture |
| 10-03 04:45 | 80m | +2 / -3 | HF5A | +7 / - | 5 | ✓ Full exchange observed |
| 10-03 04:44 | 80m | -1 / -7 | DL9KM | -4 / -8 | 5 | ✓ Full exchange observed |
| 10-03 04:42 | 80m | +4 / - | MI0OBC | +2 / -19 | 6 | ✓ Closing observed |
| 10-03 04:40 | 80m | +16 / - | AA4DD | - / - | 2 | Partial capture |
| 10-03 04:38 | 80m | +11 / - | K2TAV | - / - | 4 | Partial capture |
| 10-03 04:36 | 80m | +5 / - | NJ1Q | - / - | 3 | Partial capture |
| 10-03 04:32 | 80m | +8 / - | NA5C | -15 / -13 | 4 | ✓ Closing observed |
| 10-03 04:31 | 80m | +9 / - | K4TG | - / -8 | 2 | Partial capture |
| 10-03 04:27 | 80m | +9 / -1 | GM6URC | -2 / +5 | 4 | ✓ Full exchange observed |
| 10-03 04:27 | 80m | +12 / -10 | KF8EXX | -12 / -14 | 4 | ✓ Full exchange observed |
| 10-03 04:27 | 80m | - / - | G0OYQ | +1 / - | 3 | Partial capture |
| 10-03 04:17 | 80m | +14 / - | K4YT | - / - | 2 | Partial capture |
| 10-03 04:14 | 80m | +15 / 0 | MI7XHT | -4 / +8 | 7 | ✓ Full exchange observed |
| 10-03 04:12 | 80m | +13 / - | W4CNA | - / - | 2 | Partial capture |
| 10-03 04:08 | 80m | +12 / - | HI3T | - / -14 | 2 | ✓ Closing fragment |
| 10-03 04:05 | 80m | +6 / - | HI3T | - / - | 2 | Partial capture |
| 10-02 05:34 | 80m | +4 / - | M3VNI | - / - | 5 | Partial capture |
| 10-02 05:29 | 80m | +7 / - | WC4H | - / - | 6 | Partial capture |
| 10-02 05:26 | 80m | +9 / - | AB9DR | - / -6 | 7 | Partial capture |
| 10-02 05:24 | 80m | +9 / -14 | HB3YOY | -20 / -11 | 6 | ✓ Full exchange observed |
| 10-02 05:20 | 80m | +3 / - | KB2ELA | - / - | 3 | Partial capture |
| 10-02 05:17 | 80m | -4 / - | N0BUZ | - / - | 4 | Partial capture |
| 10-02 05:16 | 80m | -3 / - | K0HB | - / - | 2 | Partial capture |
| 10-01 05:38 | 80m | -2 / - | DO1YSF | - / -5 | 2 | Partial capture |
| 10-01 05:37 | 80m | -1 / - | M7VIC | - / +1 | 2 | Partial capture |
| 10-01 05:34 | 80m | -2 / - | N1IWP | - / - | 2 | Partial capture |
| 10-01 05:31 | 80m | +1 / - | F5LMJ | -16 / -12 | 8 | Partial capture |
| 10-01 05:30 | 80m | -6 / - | AI4EY | - / - | 3 | Partial capture |
| 10-01 05:28 | 80m | -2 / -13 | 2W0YOX | -2 / +4 | 5 | ✓ Full exchange observed |
| 10-01 05:26 | 80m | +7 / - | MM0JTV | -24 / -4 | 4 | ✓ Closing observed |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 050900 -9 1219 SM5CBM HB9IKO JN37 (x2) 050945 +0 2229 HB9IKO SM5CBM RR73 051000 -7 1219 SM5CBM HB9IKO 73 051030 -10 2230 SM5CBM PA1CTW JO32 (x2) 051115 -6 2229 PA1CTW SM5CBM RR73 051230 -24 2229 SM5CBM UA4FKT LO23 051315 -1 2229 UA4FKT SM5CBM RR73 051445 +1 2229 S55X SM5CBM JO99 (x2) 051615 +1 2229 G7RHF SM5CBM JO99 051630 -18 905 SM5CBM G7RHF +03 051645 +1 2229 G7RHF SM5CBM R-20 (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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