IK5ZTT — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving IK5ZTT, decoded by SO8OO in southeastern Poland. 286 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, 10m, across 58 UTC dates in the available aggregate history. Observed between 2026-06-07 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 286 FT8 messages attributed to IK5ZTT as the transmitting token by decoded message structure across 58 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (41%), followed by 60 m (34%) and 40 m (16%). The busiest six-hour window was 15:00-21:00 UTC, containing 44% of decodes. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -16 dB.
Overview
Bands
Last attributed message: 2026-10-05 15:44 UTC
Observed FT8 message patterns
- Attributed sample
- 286 messages
- Active dates
- 58 UTC dates
- Estimated median S/N
- -16 dB
- Estimated 10th-90th percentile
- -23 to -8 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 158, moderate (-15 to -9 dB) 98, strong (≥ -8 dB) 30.
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 IK5ZTT 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 IK5ZTT
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
- JN53 · 171 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,089 km (approx.)
- Last such locator decoded
- 2026-10-05 15:44 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 | IK5ZTT S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-05 15:44 | 40m | -23 / - | IQ8DO | -11 / - | 2 | ✓ Closing observed |
| 10-03 08:28 | 40m | - / -6 | S59WT | -11 / - | 3 | ✓ Closing fragment |
| 10-03 08:22 | 40m | - / -3 | 9A5AZK | -9 / - | 2 | ✓ Closing fragment |
| 09-28 06:50 | 40m | - / -7 | OT7K | -1 / - | 2 | ✓ Closing fragment |
| 09-28 05:54 | 80m | - / -16 | 9A5JU | -1 / - | 2 | ✓ Closing fragment |
| 09-27 19:25 | 80m | - / -4 | EA6LU | -19 / - | 2 | ✓ Closing fragment |
| 09-26 19:25 | 40m | - / -3 | ON5MX | -12 / - | 2 | ✓ Closing fragment |
| 09-26 19:22 | 40m | - / -14 | LX1RFJ | -11 / - | 4 | ✓ Closing fragment |
| 09-26 08:28 | 40m | - / +3 | SN100PKP | -10 / - | 2 | Partial capture |
| 09-25 19:40 | 60m | -10 / -11 | EW2RA | -1 / -12 | 4 | ✓ Full exchange observed |
| 09-25 07:51 | 40m | - / -19 | SP100PKP | -10 / - | 3 | Partial capture |
| 09-21 17:11 | 80m | - / - | ON7AN | -11 / - | 2 | Partial capture |
| 09-21 16:51 | 40m | -21 / -15 | SN100PKP | -3 / - | 4 | Partial capture |
| 09-20 17:39 | 60m | -18 / -5 | DJ1PQ | -12 / -17 | 5 | ✓ Full exchange observed |
| 09-20 17:38 | 60m | -19 / - | HB9HRR | -19 / -16 | 3 | ✓ Closing observed |
| 09-20 17:33 | 60m | -20 / -7 | SP9UPH | +8 / -13 | 5 | ✓ Full exchange observed |
| 09-20 17:32 | 60m | -20 / -14 | DD6ZV | -4 / -9 | 5 | ✓ Full exchange observed |
| 09-20 17:32 | 60m | -18 / -9 | ON7KEI | -14 / -16 | 7 | ✓ Full exchange observed |
| 09-20 17:22 | 60m | -17 / - | SN40KZE | - / -5 | 4 | Partial capture |
| 09-20 17:14 | 60m | -16 / -5 | SV1DKR | -8 / 0 | 5 | ✓ Full exchange observed |
| 09-20 14:34 | 40m | - / -16 | OE5ABL | -18 / - | 4 | Partial capture |
| 09-19 08:12 | 40m | - / -18 | DH1NGL | -5 / - | 3 | ✓ Closing fragment |
| 09-18 19:55 | 60m | -11 / -5 | C31CT | -12 / +2 | 5 | ✓ Full exchange observed |
| 09-18 19:28 | 60m | -11 / -18 | HA3PG | -6 / -9 | 5 | ✓ Full exchange observed |
| 09-18 19:20 | 60m | - / -5 | HA5AZD | -14 / - | 2 | ✓ Closing fragment |
| 09-18 19:17 | 60m | -14 / -4 | II6IALU | -6 / - | 2 | Partial capture |
| 09-18 17:13 | 60m | - / - | SP5JMA | +13 / - | 2 | Partial capture |
| 09-18 17:12 | 60m | - / -1 | DL9KM | -20 / - | 3 | ✓ Closing fragment |
| 09-18 17:12 | 60m | - / -10 | OE5DML | -16 / - | 2 | ✓ Closing fragment |
| 09-18 16:55 | 40m | - / -6 | LZ936BA | +7 / - | 2 | Partial capture |
| 09-18 16:52 | 40m | - / -4 | E70SZ | -2 / - | 3 | ✓ Closing fragment |
| 09-18 07:15 | 40m | - / +3 | E75FM | -10 / - | 2 | ✓ Closing fragment |
| 09-17 20:16 | 60m | -11 / - | E75C | -19 / -14 | 4 | ✓ Closing observed |
| 09-17 20:14 | 80m | - / -18 | YU7BW | +8 / - | 2 | ✓ Closing fragment |
| 09-17 20:05 | 60m | - / - | PF1B | -11 / - | 2 | Partial capture |
| 09-17 20:04 | 60m | -11 / -10 | HB9EFK | +5 / -1 | 4 | ✓ Full exchange observed |
| 09-17 20:03 | 60m | - / - | G4ZFJ | +5 / - | 3 | Partial capture |
| 09-17 19:56 | 60m | - / -14 | LZ2VQ | +2 / - | 3 | ✓ Closing fragment |
| 09-17 19:40 | 60m | - / - | ES2HV | -12 / - | 2 | Partial capture |
| 09-17 17:43 | 40m | -13 / - | DB26YLBB | - / - | 3 | Partial capture |
| 09-17 17:31 | 40m | -15 / - | SN100PKP | - / - | 2 | Partial capture |
| 09-17 13:01 | 40m | - / +9 | E77WM | -8 / - | 2 | ✓ Closing fragment |
| 09-17 05:46 | 60m | - / -7 | OE2EJN | -9 / - | 3 | ✓ Closing fragment |
| 09-17 05:43 | 60m | -21 / - | IK2SYK | -21 / +2 | 2 | ✓ Closing observed |
| 09-17 05:42 | 60m | - / - | US2YW | +6 / - | 2 | Partial capture |
| 09-17 05:26 | 60m | -19 / -4 | DK7ZT | -14 / -16 | 4 | ✓ Full exchange observed |
| 09-17 05:24 | 60m | -19 / - | IK3/UY7LA | - / +2 | 3 | Partial capture |
| 09-17 05:18 | 60m | -16 / - | S57MPU | - / - | 2 | Partial capture |
| 09-16 19:48 | 80m | -12 / - | TK/4O7CC | - / -7 | 2 | Partial capture |
| 09-16 19:34 | 60m | -21 / -21 | GX3RAF/P | -11 / -8 | 5 | ✓ Full exchange observed |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 145115 +1 1886 IK5ZTT LZ936BA -03 151615 -24 1748 HB10GBT IK5ZTT JN53 151815 -18 1451 N61SKQ/P IK5ZTT JN53 153130 +2 1826 IK5ZTT SQ100PKP -06 153515 -20 1986 <SO100PKP> IK5ZTT JN53 115730 -5 1923 IK5ZTT SP100PKP -09 081945 -15 1279 IK5ZTT S59WT -02 082215 -9 534 IK5ZTT 9A5AZK -03 (x2) 082845 -8 1279 IK5ZTT S59WT -06 (x3) 072930 +1 1440 IK5ZTT OE/DG7CF -09 154415 -23 1668 IQ8DO IK5ZTT JN53 154530 -11 1732 IK5ZTT IQ8DO RR73
UTC dB Audio Message 191300 +5 2057 IK5ZTT II8IHBC -08 (x2) 194800 -12 2792 TK/4O7CC IK5ZTT JN53 (x2) 195200 -4 2306 IK5ZTT II8IHBC -01 200945 -24 1601 SP100PKP IK5ZTT JN53 201445 +7 1231 IK5ZTT YU7BW -18 (x2) 192430 -24 964 <II9IAGM> IK5ZTT JN53 171145 -13 1872 IK5ZTT ON7AN JO20 (x2) 192545 -14 951 IK5ZTT EA6LU -04 (x2) 055415 -2 2181 IK5ZTT 9A5JU -16 (x2)
UTC dB Audio Message 173845 -18 1975 HB9HRR IK5ZTT RR73 173900 -16 1084 IK5ZTT DJ1PQ JN49 173915 -18 1975 DJ1PQ IK5ZTT -17 173930 -13 1084 IK5ZTT DJ1PQ R-05 173945 -17 1975 DJ1PQ IK5ZTT RR73 174000 -8 1084 IK5ZTT DJ1PQ 73 193945 -9 2519 CQ IK5ZTT JN53 194000 -4 1463 IK5ZTT EW2RA -11 194000 -10 1147 IK5ZTT EB1LA IN73 194000 -10 2519 IK5ZTT DL1IP JN49 194015 -10 2518 EW2RA IK5ZTT R-12 194030 +2 1463 IK5ZTT EW2RA RR73 194045 -10 2519 EW2RA IK5ZTT RR73 194145 -11 2518 EB5R IK5ZTT -17 194230 -14 1628 IK5ZTT IU5VLU JN52
UTC dB Audio Message 071300 -6 1787 R4HNX/8 IK5ZTT R+06 133730 -15 2024 TA1MB IK5ZTT JN53 134145 -10 2003 SN4K IK5ZTT JN53 134500 -14 2044 UR5WCS IK5ZTT JN53 064945 +1 2126 CQ IK5ZTT JN53 (x2) 065430 +0 2211 SP2KW IK5ZTT -13 085115 -13 2096 CQ IK5ZTT JN53 091045 +0 933 7X2KF IK5ZTT JN53 121115 +2 2214 CQ IK5ZTT JN53 121130 -9 2446 IK5ZTT PD9FLX JO22 130715 -8 1892 RC3C IK5ZTT JN53 133245 -12 2089 <...> IK5ZTT JN53 (x2) 131830 +0 2179 CQ IK5ZTT JN53
UTC dB Audio Message 140600 -19 1906 IK5ZTT IK7YZB JN80 (x3) 132345 -24 1647 CQ IK5ZTT JN53 a1 133130 -24 1830 IK5ZTT EI8GS -04 134400 -24 1629 UX2SB IK5ZTT R-06 133245 -19 2283 RC5F IK5ZTT JN53 (x2) 133745 -17 2319 LX1RFJ IK5ZTT JN53 134415 +1 2636 IK5ZTT F1PBZ -14 (x2) 134600 -21 2263 DL6AZ IK5ZTT RR73 121730 -22 1778 IK5ZTT PA3GCU RRR 135200 -11 1159 IK5ZTT SV5BYP RR73 130030 -11 1765 IK5ZTT LZ2CC 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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