IZ3QCH — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving IZ3QCH, decoded by SO8OO in southeastern Poland. 421 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 8 UTC dates in the available aggregate history. Observed between 2026-07-17 and 2026-07-26.
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 421 FT8 messages attributed to IZ3QCH as the transmitting token by decoded message structure across 8 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (79%), followed by 20 m (11%) and 80 m (10%). Several six-hour UTC windows tied for the largest share (65%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -14.9 dB.
Overview
Bands
Last attributed message: 2026-07-26 21:13 UTC
Observed FT8 message patterns
- Attributed sample
- 421 messages
- Active dates
- 8 UTC dates
- Estimated median S/N
- -14.9 dB
- Estimated 10th-90th percentile
- -22 to -9 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 182, moderate (-15 to -9 dB) 206, strong (≥ -8 dB) 33.
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 IZ3QCH 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 IZ3QCH
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
- JN55 · 208 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 945 km (approx.)
- Last such locator decoded
- 2026-07-26 21:13 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 | IZ3QCH S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 07-26 21:12 | 40m | -13 / - | Z62NS | - / - | 2 | Partial capture |
| 07-26 21:03 | 40m | -14 / -1 | G3WGC | -11 / -7 | 7 | ✓ Full exchange observed |
| 07-26 21:02 | 40m | -14 / - | PD2TX | -17 / -15 | 2 | ✓ Closing observed |
| 07-26 20:58 | 40m | -12 / - | M6XEL | - / -14 | 3 | ✓ Closing fragment |
| 07-26 20:56 | 40m | -12 / -15 | UI6O | -9 / -9 | 3 | ✓ Full exchange observed |
| 07-26 20:53 | 40m | -12 / -10 | 8S7DL | -14 / -13 | 7 | Partial capture |
| 07-26 20:52 | 40m | -13 / - | F4NKF | - / -6 | 3 | ✓ Closing fragment |
| 07-26 20:50 | 40m | -12 / - | 9A2L | - / -10 | 3 | ✓ Closing fragment |
| 07-26 20:49 | 40m | -12 / - | TF/PA1JFR | - / -4 | 2 | Partial capture |
| 07-26 20:47 | 40m | -16 / - | <...> | - / -13 | 2 | Partial capture |
| 07-26 20:43 | 40m | -13 / -13 | M0MLS | -10 / -3 | 3 | ✓ Full exchange observed |
| 07-26 20:39 | 40m | -13 / - | M7IQA | - / -17 | 2 | Partial capture |
| 07-26 20:38 | 40m | -12 / - | RU3DBT | - / - | 2 | Partial capture |
| 07-26 20:35 | 40m | -13 / - | M7BUY | - / - | 2 | ✓ Closing fragment |
| 07-26 20:33 | 40m | -13 / - | RA3TRR | - / -8 | 3 | ✓ Closing fragment |
| 07-26 20:31 | 40m | -16 / - | RC7KK | - / - | 2 | Partial capture |
| 07-25 14:32 | 20m | -20 / - | EA3IXC | - / - | 2 | ✓ Closing fragment |
| 07-25 14:22 | 20m | -22 / - | R3YK | -12 / -9 | 4 | ✓ Closing observed |
| 07-25 14:19 | 20m | -20 / -15 | M7INZ | +5 / -14 | 7 | ✓ Full exchange observed |
| 07-25 14:16 | 20m | -18 / -11 | M0CKX | -13 / -25 | 7 | ✓ Full exchange observed |
| 07-25 14:12 | 20m | - / -14 | EB3JT | -14 / - | 2 | ✓ Closing fragment |
| 07-24 21:35 | 40m | -17 / - | SP5MIG | - / - | 3 | Partial capture |
| 07-24 21:29 | 40m | -15 / - | <...> | - / -12 | 3 | Partial capture |
| 07-24 21:19 | 40m | - / - | IQ2AAH | -12 / - | 2 | Partial capture |
| 07-24 21:19 | 40m | -18 / - | MW7HZQ | -20 / -12 | 2 | ✓ Closing observed |
| 07-24 21:17 | 40m | -18 / - | EA7JVM | - / - | 2 | Partial capture |
| 07-24 21:15 | 40m | -16 / - | TJ1GD/P | - / - | 2 | Partial capture |
| 07-24 21:08 | 40m | -16 / - | IK8IOI | - / -12 | 3 | ✓ Closing fragment |
| 07-24 21:06 | 40m | -15 / - | SP5MIG | - / - | 4 | Partial capture |
| 07-24 21:04 | 40m | -12 / - | TJ1GD/P | - / - | 3 | Partial capture |
| 07-24 21:00 | 40m | -14 / - | SP4OLI | - / - | 4 | Partial capture |
| 07-24 20:55 | 40m | -15 / - | UT4VL | -16 / -8 | 3 | ✓ Closing observed |
| 07-24 20:53 | 40m | -13 / -4 | R3KFT | -14 / - | 3 | ✓ Closing observed |
| 07-24 20:50 | 40m | -10 / - | DL2YMR | - / -10 | 3 | ✓ Closing fragment |
| 07-24 20:46 | 40m | -14 / - | R4ZZ | - / -21 | 3 | ✓ Closing fragment |
| 07-24 20:44 | 40m | -14 / - | RX3ASQ | - / -8 | 3 | ✓ Closing fragment |
| 07-24 20:40 | 40m | - / +5 | ES0RY | -11 / - | 2 | ✓ Closing fragment |
| 07-24 20:34 | 40m | -14 / - | RN3YN | - / - | 2 | Partial capture |
| 07-24 20:32 | 40m | -15 / +6 | G3SWC | -9 / -2 | 5 | ✓ Full exchange observed |
| 07-24 20:20 | 40m | -13 / - | UF1A | - / - | 2 | ✓ Closing fragment |
| 07-24 06:58 | 20m | -17 / - | EA1HSZ | - / - | 2 | Partial capture |
| 07-24 06:57 | 20m | -16 / - | VP2MAA | - / - | 2 | Partial capture |
| 07-24 06:18 | 40m | -19 / -12 | SP1ZMO | -22 / - | 3 | ✓ Closing observed |
| 07-24 06:18 | 40m | -22 / - | DD2PI | - / -4 | 2 | ✓ Closing fragment |
| 07-24 05:50 | 40m | -16 / - | IT9ACJ | - / -12 | 3 | ✓ Closing fragment |
| 07-24 05:45 | 40m | -19 / - | <...> | - / - | 2 | Partial capture |
| 07-24 05:31 | 40m | -20 / - | V31DL | - / -9 | 2 | ✓ Closing fragment |
| 07-24 05:26 | 40m | -19 / - | EB3DBR | - / -7 | 2 | ✓ Closing fragment |
| 07-24 05:01 | 40m | -20 / - | DG1RMY | - / -19 | 2 | Partial capture |
| 07-24 04:58 | 40m | -16 / - | R3BGU | - / - | 3 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 205900 -13 1521 M6XEL IZ3QCH R-14 (x2) 210200 -14 1521 PD2TX IZ3QCH R-15 210215 -17 1521 IZ3QCH PD2TX RR73 210315 -12 235 IZ3QCH G3WGC JO02 210330 -11 1521 IU8WPZ IZ3QCH JN55 210345 -12 236 IZ3QCH G3WGC JO02 (x2) 210430 -13 1521 G3WGC IZ3QCH -07 210445 -11 235 IZ3QCH G3WGC R-01 210500 -14 1521 G3WGC IZ3QCH RR73 210515 -10 235 IZ3QCH G3WGC 73 211215 -13 1521 Z62NS IZ3QCH JN55 (x2) 211315 -11 1521 RU3DBT IZ3QCH JN55
UTC dB Audio Message 142115 -19 1543 M7INZ IZ3QCH R-15 142130 +4 727 IZ3QCH M7INZ RR73 142145 -20 1543 M7INZ IZ3QCH 73 142245 -21 1543 R3YK IZ3QCH -09 (x3) 142400 -12 448 IZ3QCH R3YK 73 142600 -17 1543 YB7FII IZ3QCH JN55 142700 -21 1543 DK4NB IZ3QCH JN55 142815 -24 1543 ES7GN IZ3QCH JN55 143045 -21 1543 <...> IZ3QCH JN55 143145 -18 1543 UA9UFJ IZ3QCH JN55 143245 -19 1543 EA3IXC IZ3QCH JN55 (x2) 143615 -17 1543 M7GXD IZ3QCH R-15
UTC dB Audio Message 213230 +3 2002 IZ3QCH DO9BAU R-19 (x3) 213400 +15 668 IZ3QCH 9A60CBM R-03 213530 -6 1494 IZ3QCH DL1AG R-05 214100 -11 1495 YO6LM IZ3QCH JN55 214115 +3 2194 IZ3QCH YO6LM -17 214130 -13 1495 YO6LM IZ3QCH R-11 214145 +1 2194 IZ3QCH YO6LM RR73 214200 -16 1495 YO6LM IZ3QCH 73 214300 -15 1494 EA7HJW IZ3QCH JN55 214330 -18 1494 UB3DRL IZ3QCH JN55 (x2) 214445 -14 1736 IZ3QCH EA7HJW RR73 214500 -14 1494 EA7HJW IZ3QCH 73
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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