YO4GGA — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving YO4GGA, decoded by SO8OO in southeastern Poland. 147 FT8 messages attributed to this token as transmitter, on 20m, across 6 UTC dates in the available aggregate history. Observed between 2026-06-14 and 2026-08-30.
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 147 FT8 messages attributed to YO4GGA as the transmitting token by decoded message structure across 6 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (100%). Several six-hour UTC windows tied for the largest share (64%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (78%); the estimated median was -1 dB.
Overview
Observed FT8 message patterns
- Attributed sample
- 147 messages
- Active dates
- 6 UTC dates
- Estimated median S/N
- -1 dB
- Estimated 10th-90th percentile
- -12 to +13 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 8, moderate (-15 to -9 dB) 25, strong (≥ -8 dB) 114.
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 YO4GGA 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 YO4GGA
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
- KN35 · 70 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 628 km (approx.)
- Last such locator decoded
- 2026-08-30 21:02 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 | YO4GGA S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-30 21:08 | 20m | - / - | W1LBW | -1 / - | 4 | Partial capture |
| 08-30 21:06 | 20m | -11 / - | PY2ACA | - / -14 | 2 | ✓ Closing fragment |
| 08-30 21:02 | 20m | -10 / +6 | 4X5JK | +2 / - | 4 | ✓ Closing observed |
| 08-30 20:51 | 20m | -18 / - | BA4VDC | - / - | 2 | Partial capture |
| 08-30 20:49 | 20m | -11 / - | TJ1GD | -9 / -11 | 5 | ✓ Closing observed |
| 08-30 20:33 | 20m | -4 / - | KA1MXL | - / - | 3 | Partial capture |
| 08-30 20:31 | 20m | -9 / - | HS0ZOY | - / -7 | 3 | Partial capture |
| 08-30 20:25 | 20m | - / -2 | F1IQH | -2 / - | 2 | ✓ Closing fragment |
| 08-30 20:20 | 20m | - / -9 | F1IQH | -1 / - | 4 | ✓ Closing fragment |
| 08-30 20:17 | 20m | - / -12 | EX7DY | -12 / - | 2 | ✓ Closing fragment |
| 08-30 19:59 | 20m | - / -16 | WA4FU | -18 / - | 2 | ✓ Closing fragment |
| 08-30 19:49 | 20m | -10 / - | R3NCG | - / -13 | 2 | ✓ Closing fragment |
| 08-30 19:35 | 20m | - / -17 | <...> | -18 / - | 3 | Partial capture |
| 08-30 19:19 | 20m | -17 / -5 | A61SD | -3 / -17 | 5 | ✓ Full exchange observed |
| 08-30 19:06 | 20m | - / 0 | M3WHB | -4 / - | 3 | Partial capture |
| 08-30 18:59 | 20m | - / -12 | HZ1KS | -10 / - | 2 | ✓ Closing fragment |
| 08-30 18:56 | 20m | - / - | G4DBW | +12 / - | 2 | Partial capture |
| 08-25 16:47 | 20m | - / +6 | F8FUA | +18 / - | 2 | ✓ Closing fragment |
| 08-25 16:45 | 20m | - / - | EA3AGF | -5 / - | 2 | Partial capture |
| 08-22 09:48 | 20m | +2 / - | CO8LY | - / -22 | 5 | ✓ Closing fragment |
| 08-22 09:45 | 20m | +3 / - | PE1NGW | - / - | 3 | Partial capture |
| 08-22 09:44 | 20m | +10 / 0 | SP2GK | -5 / -1 | 4 | ✓ Full exchange observed |
| 08-22 09:42 | 20m | +13 / +6 | PD0PMF | -4 / -8 | 5 | ✓ Full exchange observed |
| 08-22 09:40 | 20m | +11 / - | I0WBX | - / -12 | 3 | ✓ Closing fragment |
| 08-22 09:36 | 20m | +11 / - | PE1NGW | - / - | 2 | Partial capture |
| 08-22 09:33 | 20m | +11 / -13 | G7TVI | -5 / - | 3 | Partial capture |
| 08-22 09:31 | 20m | +8 / - | PE1NGW | - / - | 2 | Partial capture |
| 08-22 09:29 | 20m | +14 / - | RN3RHQ | - / -21 | 4 | ✓ Closing fragment |
| 08-22 09:28 | 20m | +8 / - | IV3KFD | - / -8 | 3 | ✓ Closing fragment |
| 08-22 09:25 | 20m | +7 / -6 | F5SZB | -4 / - | 4 | Partial capture |
| 08-22 09:24 | 20m | +11 / - | IV3KFD | - / - | 2 | Partial capture |
| 08-22 09:22 | 20m | +15 / - | HB9FAW | -9 / -8 | 4 | ✓ Closing observed |
| 08-22 09:14 | 20m | +6 / - | RA1NBG | - / -6 | 2 | ✓ Closing fragment |
| 08-22 09:13 | 20m | +9 / -23 | F1DSZ | +6 / -5 | 4 | ✓ Full exchange observed |
| 08-22 09:11 | 20m | +7 / - | IW2IDB | - / -15 | 4 | ✓ Closing fragment |
| 08-22 09:09 | 20m | +13 / +9 | F6ARS | +3 / -9 | 5 | ✓ Full exchange observed |
| 08-11 11:20 | 20m | +12 / - | YL2NX | - / -7 | 2 | ✓ Closing fragment |
| 08-11 11:18 | 20m | -3 / - | EA1FCS | - / -16 | 3 | ✓ Closing fragment |
| 08-11 11:15 | 20m | +2 / - | SV0TPN | - / - | 3 | Partial capture |
| 08-08 12:43 | 20m | - / +2 | MM0TBH | -7 / - | 3 | ✓ Closing fragment |
| 08-08 11:35 | 20m | -9 / - | 9A5MP | - / - | 3 | Partial capture |
| 08-08 11:33 | 20m | -9 / -8 | R4FDW | -12 / -7 | 5 | ✓ Full exchange observed |
| 08-08 11:28 | 20m | -3 / - | PD1DRE | - / -5 | 3 | ✓ Closing fragment |
| 08-08 11:26 | 20m | -5 / +2 | IK5EEA | -9 / 0 | 4 | ✓ Full exchange observed |
| 08-07 11:41 | 20m | +7 / - | DK8HC | - / -6 | 2 | ✓ Closing fragment |
| 08-07 11:40 | 20m | +2 / - | YU4RBL | - / -11 | 2 | ✓ Closing fragment |
| 08-07 11:39 | 20m | -2 / - | YU65AEC | - / +7 | 2 | Partial capture |
| 08-07 11:37 | 20m | -4 / -1 | YO5PHL | -8 / +10 | 3 | ✓ Full exchange observed |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 205045 -12 517 TJ1GD YO4GGA 73 205145 -17 1414 BA4VDC YO4GGA KN35 (x2) 205900 -14 1186 W4DR YO4GGA KN35 210215 -10 521 4X5JK YO4GGA KN35 210400 +3 520 YO4GGA 4X5JK +06 (x3) 210645 -9 407 PY2ACA YO4GGA R-14 (x2) 210800 -5 944 YO4GGA W1LBW FN31 (x4) 211245 -17 1153 YO4GGA KE4NVI -18
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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