GB0MMH — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving GB0MMH, decoded by SO8OO in southeastern Poland. 100 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 3 UTC dates in the available aggregate history. Observed between 2026-06-27 and 2026-06-30.
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 100 FT8 messages attributed to GB0MMH as the transmitting token by decoded message structure across 3 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (88%), followed by 40 m (6%) and 10 m (6%). Most decodes (85%) 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 -12 dB.
Overview
Bands
Last attributed message: 2026-06-30 21:21 UTC
Observed FT8 message patterns
- Attributed sample
- 100 messages
- Active dates
- 3 UTC dates
- Estimated median S/N
- -12 dB
- Estimated 10th-90th percentile
- -17 to +4 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 23, moderate (-15 to -9 dB) 51, strong (≥ -8 dB) 26.
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 GB0MMH 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 GB0MMH
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
- IO93 · 52 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,612 km (approx.)
- Last such locator decoded
- 2026-06-30 21:21 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 | GB0MMH S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 06-30 21:18 | 20m | -14 / - | ER1CW | - / - | 4 | ✓ Closing fragment |
| 06-30 21:08 | 20m | -23 / - | IU8RFW | - / - | 2 | Partial capture |
| 06-30 21:02 | 20m | -20 / - | R3DLZ | - / - | 2 | ✓ Closing fragment |
| 06-30 21:00 | 20m | -4 / - | OH6FSO | - / +3 | 2 | Partial capture |
| 06-30 20:59 | 20m | -14 / - | E2WWA | - / -11 | 2 | Partial capture |
| 06-30 20:57 | 20m | -10 / - | A61CK | - / -2 | 3 | ✓ Closing fragment |
| 06-30 20:55 | 20m | -10 / - | US5WFL | - / -11 | 3 | Partial capture |
| 06-30 20:50 | 20m | -18 / - | DK8DB | - / - | 4 | Partial capture |
| 06-30 20:41 | 20m | +6 / - | IK4LZH | -6 / - | 7 | ✓ Closing observed |
| 06-30 20:38 | 20m | +11 / - | E75AA | - / +5 | 3 | ✓ Closing fragment |
| 06-30 20:38 | 20m | +15 / - | SV5BYP | -6 / +10 | 5 | ✓ Closing observed |
| 06-30 20:37 | 20m | +4 / - | R1TM | - / - | 3 | ✓ Closing fragment |
| 06-30 20:36 | 20m | - / - | I1RJP | -9 / - | 2 | Partial capture |
| 06-30 20:35 | 20m | -4 / - | LZ1ZF | - / -3 | 3 | ✓ Closing fragment |
| 06-30 20:33 | 20m | -11 / - | JA9CWJ | - / -5 | 2 | ✓ Closing fragment |
| 06-28 19:51 | 10m | -15 / - | IU8UHK | - / - | 5 | ✓ Closing fragment |
| 06-27 21:26 | 80m | - / - | UA4FKT | -5 / - | 3 | Partial capture |
| 06-27 21:25 | 80m | - / -7 | F1PBZ | -15 / - | 3 | Partial capture |
| 06-27 21:25 | 80m | - / +3 | E70SZ | -1 / - | 3 | ✓ Closing fragment |
| 06-27 21:24 | 20m | - / -12 | YO4NF | -7 / - | 7 | ✓ Closing fragment |
| 06-27 21:23 | 80m | - / -7 | EA1IOK | -9 / - | 3 | ✓ Closing fragment |
| 06-27 21:23 | 80m | - / - | YO5IM | 0 / - | 2 | Partial capture |
| 06-27 21:16 | 20m | - / -12 | YO4NF | -6 / - | 5 | ✓ Closing fragment |
| 06-27 21:14 | 20m | - / -8 | EA1IOK | -8 / - | 4 | ✓ Closing fragment |
| 06-27 21:10 | 20m | - / -11 | YO4NF | -4 / - | 2 | Partial capture |
| 06-27 18:33 | 20m | - / - | DJ3WF | -6 / - | 2 | Partial capture |
| 06-27 18:27 | 20m | - / - | UA3ZQN | 0 / - | 3 | Partial capture |
| 06-27 18:23 | 20m | - / -10 | RY7G | +2 / - | 4 | ✓ Closing fragment |
| 06-27 17:34 | 20m | -4 / - | R1BDX | - / +4 | 2 | Partial capture |
| 06-27 17:02 | 20m | - / +3 | DL1HQN | -5 / - | 3 | Partial capture |
| 06-27 16:40 | 20m | - / -5 | M0BEW | -12 / - | 2 | Partial capture |
| 06-27 16:36 | 20m | - / - | UR4LG | -14 / - | 3 | Partial capture |
| 06-27 16:35 | 20m | - / -11 | UA4CKN | -6 / - | 2 | Partial capture |
| 06-27 16:34 | 20m | - / -7 | M0BEW | -8 / - | 2 | Partial capture |
| 06-27 16:24 | 20m | - / - | DG5LP | -14 / - | 2 | Partial capture |
| 06-27 16:23 | 20m | - / - | DL1R | -4 / - | 4 | Partial capture |
| 06-27 16:21 | 20m | - / - | DG5LP | -15 / - | 2 | Partial capture |
| 06-27 16:21 | 20m | - / -8 | M0BEW | -6 / - | 2 | Partial capture |
| 06-27 16:16 | 20m | - / -12 | M0BEW | -8 / - | 3 | Partial capture |
| 06-27 16:12 | 20m | -11 / - | BD1TX | - / -19 | 3 | Partial capture |
| 06-27 16:00 | 20m | - / -3 | DL1AG | -11 / - | 2 | Partial capture |
| 06-27 15:55 | 20m | - / +9 | DL9PN | -9 / - | 2 | Partial capture |
| 06-27 15:47 | 20m | - / - | OK2VCR | -13 / - | 2 | Partial capture |
| 06-27 15:47 | 20m | - / -9 | DF8TN | -12 / - | 8 | ✓ Closing fragment |
| 06-27 15:44 | 20m | - / -14 | OE6TNO | -8 / - | 4 | ✓ Closing fragment |
| 06-27 15:36 | 20m | - / - | DB1EF | -20 / - | 2 | ✓ Closing fragment |
| 06-27 08:23 | 20m | -16 / - | DB1EF | -24 / +10 | 4 | Partial capture |
| 06-27 08:23 | 20m | - / -5 | RZ3EM | -10 / - | 5 | Partial capture |
| 06-27 08:22 | 20m | - / - | IU2SLW | -18 / - | 2 | Partial capture |
| 06-27 08:19 | 20m | - / -7 | I3QDK | -15 / - | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 205830 -5 937 A61CK GB0MMH 73 205900 -15 1865 E2WWA GB0MMH IO93 (x2) 210030 -1 2812 OH6FSO GB0MMH IO93 (x2) 210200 -18 1594 R3DLZ GB0MMH IO93 (x2) 210400 -12 2530 UN0GY GB0MMH IO93 210830 -22 1593 IU8RFW GB0MMH IO93 (x2) 211830 -15 1126 ER1CW GB0MMH IO93 (x4) 212100 -14 2310 W3FOX GB0MMH IO93
UTC dB Audio Message 194900 -12 1203 DJ0MAB GB0MMH RR73 195100 -16 1203 IU8UHK GB0MMH RR73 (x5)
UTC dB Audio Message 212345 -2 1644 GB0MMH YO5IM KN07 212345 -9 614 GB0MMH EA1IOK IN62 212415 +1 1644 GB0MMH YO5IM KN07 212415 -10 614 GB0MMH EA1IOK R-07 (x2) 212515 -2 214 GB0MMH E70SZ JN84 212545 -17 2504 GB0MMH F1PBZ -07 212545 +1 214 GB0MMH E70SZ R+03 212615 -16 2504 GB0MMH F1PBZ -07 212615 -1 214 GB0MMH E70SZ 73 212645 -6 203 GB0MMH UA4FKT LO23 212645 -13 2504 GB0MMH F1PBZ -07 212715 -7 203 GB0MMH UA4FKT LO23 (x2)
UTC dB Audio Message 055345 -24 1657 GB0MMH YO3GNF KN34 055445 -3 876 GB0MMH DD7EE R-01 (x2) 061530 -16 1038 F1PBZ GB0MMH R+16 (x3) 061700 -9 1038 CQ GB0MMH IO93 061715 -9 2637 GB0MMH RN2F KO04 (x2) 061815 -21 1241 GB0MMH YO3GNF KN34 061815 -6 2637 GB0MMH RN2F 73 061915 -10 1241 GB0MMH YO3GNF KN34 061915 -20 1783 GB0MMH ON7DE R+16 061945 -13 1241 GB0MMH YO3GNF KN34 064215 -24 1871 GB0MMH SP6JM RR73
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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