IQ4JO — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving IQ4JO, decoded by SO8OO in southeastern Poland. 67,899 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 106 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-09-20.
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 67,899 FT8 messages attributed to IQ4JO as the transmitting token by decoded message structure across 106 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (39%), followed by 20 m (30%) and 80 m (23%). The busiest six-hour window was 18:00-00:00 UTC, containing 41% of decodes. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (87%); the estimated median was +0.8 dB.
Overview
Bands
Last attributed message: 2026-09-20 08:11 UTC
Observed FT8 message patterns
- Attributed sample
- 67,899 messages
- Active dates
- 106 UTC dates
- Estimated median S/N
- +0.8 dB
- Estimated 10th-90th percentile
- -10 to +10.4 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 1,811, moderate (-15 to -9 dB) 7,002, strong (≥ -8 dB) 59,086.
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 IQ4JO 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 IQ4JO
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
- JN63 · 51,836 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 979 km (approx.)
- Last such locator decoded
- 2026-09-20 07:34 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 | IQ4JO S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-20 11:05 | 80m | - / +4 | DJ9WH | -19 / - | 2 | ✓ Closing fragment |
| 09-20 09:59 | 40m | - / +1 | OE2JPO | -6 / - | 2 | Partial capture |
| 09-20 08:59 | 40m | - / -11 | SQ3BKI | +4 / - | 2 | Partial capture |
| 09-20 08:45 | 40m | - / - | OE5NVL | +3 / - | 4 | Partial capture |
| 09-20 07:34 | 40m | -20 / - | IZ1JXZ | - / - | 2 | ✓ Closing fragment |
| 09-20 07:26 | 40m | - / -20 | DL9BDR | +4 / - | 2 | Partial capture |
| 09-20 06:46 | 40m | - / - | EA3HMM | -22 / - | 2 | Partial capture |
| 09-20 06:45 | 40m | -14 / - | DF1MP | -18 / - | 3 | ✓ Closing observed |
| 09-20 06:24 | 40m | -13 / - | HB9CIC | - / -5 | 4 | Partial capture |
| 09-20 06:19 | 40m | -17 / - | DH0BRO | - / - | 2 | ✓ Closing fragment |
| 09-20 06:16 | 40m | -11 / -2 | OE2AFX | -14 / -6 | 5 | ✓ Full exchange observed |
| 09-20 06:12 | 40m | -15 / - | F5PJG | - / -11 | 2 | ✓ Closing fragment |
| 09-20 05:22 | 40m | -9 / - | IK0AIH | - / -5 | 3 | ✓ Closing fragment |
| 09-20 05:06 | 80m | -6 / - | EA7ZC | - / -9 | 2 | Partial capture |
| 09-20 05:04 | 80m | -3 / -4 | G4YTU | -11 / -6 | 5 | ✓ Full exchange observed |
| 09-20 04:54 | 80m | +4 / -11 | OZ1TDK | -14 / -17 | 4 | ✓ Full exchange observed |
| 09-20 04:51 | 80m | +2 / -7 | DO6BLK | -14 / -16 | 7 | ✓ Full exchange observed |
| 09-20 04:50 | 80m | 0 / +8 | DL1CWR | +3 / -1 | 5 | ✓ Full exchange observed |
| 09-20 04:47 | 80m | -4 / - | KD8VYT | - / - | 4 | Partial capture |
| 09-20 04:13 | 80m | +14 / +9 | SP9TDA | +8 / -11 | 4 | ✓ Full exchange observed |
| 09-20 03:36 | 80m | - / +7 | F4PCM | -5 / - | 2 | ✓ Closing fragment |
| 09-20 03:27 | 80m | +11 / - | F4HQL | -8 / -5 | 5 | ✓ Full exchange observed |
| 09-20 03:06 | 80m | +10 / - | OH3EVO | -10 / -13 | 4 | ✓ Closing observed |
| 09-20 03:02 | 80m | +11 / -5 | EA2DYB | -4 / - | 3 | ✓ Closing observed |
| 09-20 03:01 | 80m | +7 / - | R4FDD | -12 / - | 2 | ✓ Closing observed |
| 09-20 02:57 | 80m | +9 / -7 | N1IWP | -15 / -12 | 10 | ✓ Full exchange observed |
| 09-20 02:42 | 80m | +15 / +1 | LY4PR | -13 / -19 | 5 | ✓ Full exchange observed |
| 09-20 00:08 | 80m | +20 / - | R3ST | - / -1 | 3 | ✓ Closing fragment |
| 09-19 22:37 | 80m | - / +7 | HA7VC/P | +2 / - | 2 | ✓ Closing fragment |
| 09-19 22:15 | 80m | +7 / +5 | HA7VC/P | +4 / - | 3 | Partial capture |
| 09-19 22:13 | 80m | +12 / -1 | SV2DCD | +10 / +2 | 5 | ✓ Full exchange observed |
| 09-19 22:10 | 80m | +8 / -13 | IZ3ZOF | -7 / -14 | 4 | ✓ Full exchange observed |
| 09-19 22:03 | 80m | +14 / +9 | IU8GUK | -4 / 0 | 5 | ✓ Full exchange observed |
| 09-19 22:00 | 80m | +6 / -14 | DO9POL | -9 / -15 | 9 | Partial capture |
| 09-19 21:57 | 80m | +6 / -14 | G3XIZ | -7 / -8 | 5 | ✓ Full exchange observed |
| 09-19 21:53 | 80m | +10 / +3 | IV3VBM | +14 / +3 | 5 | ✓ Full exchange observed |
| 09-19 21:49 | 80m | +13 / 0 | F1SAA | -13 / -8 | 5 | ✓ Full exchange observed |
| 09-19 21:47 | 80m | +11 / - | G1JSF | - / -17 | 3 | ✓ Closing fragment |
| 09-19 21:43 | 80m | +10 / -20 | RN7T | +12 / -9 | 5 | ✓ Full exchange observed |
| 09-19 21:25 | 80m | +6 / - | DO6KGS | - / -16 | 3 | ✓ Closing fragment |
| 09-19 21:17 | 80m | +10 / -10 | LZ2XA | +12 / - | 13 | Partial capture |
| 09-19 21:07 | 80m | - / +2 | DL1HUH | -4 / - | 4 | Partial capture |
| 09-19 21:06 | 80m | +12 / - | DL9IX | - / -18 | 3 | ✓ Closing fragment |
| 09-19 21:00 | 80m | +7 / - | IZ2BKS | - / -6 | 3 | ✓ Closing fragment |
| 09-19 20:55 | 40m | +3 / - | JA8EPO | - / -12 | 2 | ✓ Closing fragment |
| 09-19 20:53 | 40m | +6 / - | JF1UVJ | -18 / -8 | 3 | Partial capture |
| 09-19 20:49 | 40m | +6 / - | 9A1CCB | - / - | 2 | Partial capture |
| 09-19 20:42 | 80m | +6 / - | MM0ULL | - / -14 | 3 | ✓ Closing fragment |
| 09-19 20:40 | 80m | +9 / - | SQ5FM | 0 / -19 | 4 | ✓ Closing observed |
| 09-19 20:10 | 80m | +14 / -1 | DR2A | -10 / - | 4 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 050300 -12 1718 CQ IQ4JO JN63 (x3) 050430 -4 1718 G4YTU IQ4JO JN63 050445 -10 1275 IQ4JO G4YTU -04 050500 -2 1718 G4YTU IQ4JO R-06 050515 -12 1275 IQ4JO G4YTU RRR 050530 -4 1718 G4YTU IQ4JO 73 050600 -3 1718 CQ IQ4JO JN63 050630 -4 1718 EA7ZC IQ4JO JN63 (x2) 051200 -5 1718 OK2BXD IQ4JO JN63 051445 -10 1719 EA8SG IQ4JO JN63 110545 -22 1882 IQ4JO DJ9WH +04 (x2)
UTC dB Audio Message 070115 -16 2433 RM1B IQ4JO R-24 070345 -16 2432 CQ IQ4JO JN63 072615 +5 2591 IQ4JO DL9BDR -20 (x2) 073445 -19 2433 IZ1JXZ IQ4JO JN63 (x2) 081145 -16 2437 IT9DWF IQ4JO R+02 084500 +3 2433 IQ4JO OE5NVL JN67 (x4) 085900 +4 1102 IQ4JO SQ3BKI -11 (x2) 095930 -3 1254 IQ4JO OE2JPO +01 (x2)
UTC dB Audio Message 194145 -21 2176 IQ4JO IU3VGK -21 (x3) 063030 -19 2030 IQ4JO HB9ACA -10 (x6)
UTC dB Audio Message 093030 -21 2296 DL8CC IQ4JO JN63 093230 -17 2296 OK1JMB IQ4JO JN63 094000 -17 2298 SQ9OE IQ4JO JN63 (x4) 095200 -16 2300 CQ IQ4JO JN63 101115 -16 2300 EA5CVS IQ4JO JN63 102200 -17 2301 DL1RMY IQ4JO JN63 102315 -18 2302 DL3AMW IQ4JO JN63 (x2) 110515 -14 2299 DG0LHH IQ4JO JN63 061000 -17 2142 SM7GIB IQ4JO R-16 061230 -19 2140 DN9BLN IQ4JO RR73 133045 -15 1068 IQ4JO VU2CPL -10
UTC dB Audio Message 200145 -4 2542 YO3NSS IQ4JO JN63 200830 -9 2542 KE2HPS IQ4JO JN63 (x3) 201430 -11 2542 G4PTP IQ4JO JN63 201600 -10 2542 VE3IJM IQ4JO JN63 201715 -4 2542 MW6YPO IQ4JO JN63 202215 -7 2542 G3ROY IQ4JO JN63 202515 -8 2543 G4PTP IQ4JO R-23 (x2) 202600 -8 2752 IQ4JO G4PTP 73 202700 -3 2542 VE3IJM IQ4JO JN63 202745 -9 2542 KR4EWZ IQ4JO JN63 203030 -10 2314 IQ4JO PD0PY -09 203330 -4 2543 VE3IJM IQ4JO 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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