IZ0HEI — reception at SO8OO
Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.
FT8 activity
Receiver-side FT8 activity involving IZ0HEI, decoded by SO8OO in southeastern Poland. 78 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, across 10 UTC dates in the available aggregate history. Observed between 2026-09-10 and 2026-10-23.
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 78 FT8 messages attributed to IZ0HEI as the transmitting token by decoded message structure across 10 UTC dates in the available aggregate history. The largest monitored-band total was 60 m (56%), followed by 40 m (41%) and 80 m (3%). Several six-hour UTC windows tied for the largest share (94%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's weak S/N range (64%); the estimated median was -17 dB.
Overview
Bands
Last attributed message: 2026-10-23 06:05 UTC
Observed FT8 message patterns
- Attributed sample
- 78 messages
- Active dates
- 10 UTC dates
- Estimated median S/N
- -17 dB
- Estimated 10th-90th percentile
- -22 to -11 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 50, moderate (-15 to -9 dB) 27, strong (≥ -8 dB) 1.
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 IZ0HEI 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 IZ0HEI
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
- JN61 · 22 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,158 km (approx.)
- Last such locator decoded
- 2026-10-23 05:14 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 | IZ0HEI S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-23 05:12 | 40m | -17 / - | V47NT | - / -17 | 13 | Partial capture |
| 10-07 16:53 | 40m | - / - | UA4FKT | -5 / - | 2 | Partial capture |
| 10-07 16:46 | 40m | -15 / -16 | DL9KM | -6 / - | 5 | ✓ Closing observed |
| 10-07 16:45 | 40m | -17 / -12 | DL3MIB | +8 / -13 | 5 | ✓ Full exchange observed |
| 10-07 16:41 | 40m | - / - | DL3IAK | -12 / - | 3 | Partial capture |
| 10-07 16:40 | 40m | - / - | DL3MIB | +7 / - | 6 | Partial capture |
| 10-07 16:38 | 40m | - / - | IU4PPL | -14 / - | 2 | ✓ Closing fragment |
| 10-07 16:38 | 40m | - / - | PE1NPS | -6 / - | 2 | Partial capture |
| 10-07 16:37 | 40m | - / - | HG8LXL | -4 / - | 3 | Partial capture |
| 10-07 16:35 | 40m | - / -4 | YO4NT | +2 / - | 2 | ✓ Closing fragment |
| 10-07 16:26 | 40m | - / +5 | ON1AJ | -9 / - | 3 | Partial capture |
| 10-07 16:26 | 40m | - / -12 | S51PV | -4 / - | 3 | Partial capture |
| 10-07 07:01 | 40m | - / -13 | HG8LXL | -3 / - | 6 | Partial capture |
| 10-07 06:59 | 40m | - / -14 | SP1JQJ | -3 / - | 3 | ✓ Closing fragment |
| 10-07 06:57 | 40m | - / -8 | F1PBZ | -5 / - | 3 | ✓ Closing fragment |
| 10-07 06:57 | 40m | - / -12 | HA7TM | +10 / - | 4 | ✓ Closing fragment |
| 10-05 16:42 | 60m | -16 / -3 | OE1TKS | -8 / -3 | 4 | ✓ Full exchange observed |
| 10-03 06:28 | 40m | -12 / +6 | G3TKT | -6 / - | 4 | ✓ Closing observed |
| 10-03 06:25 | 40m | - / -7 | S55A | -4 / - | 3 | ✓ Closing fragment |
| 10-03 06:23 | 40m | - / - | DH5BM | -4 / - | 2 | Partial capture |
| 10-03 06:21 | 40m | - / -8 | SP4MPH | +3 / - | 2 | Partial capture |
| 10-03 06:05 | 40m | - / -10 | DK6WS | -10 / - | 2 | Partial capture |
| 10-03 05:58 | 40m | - / -13 | IK4TVP | -16 / - | 2 | ✓ Closing fragment |
| 10-03 05:54 | 40m | -18 / -12 | DL6UM | 0 / -25 | 7 | ✓ Full exchange observed |
| 10-03 05:54 | 40m | -14 / -13 | F5PBG | -8 / +1 | 3 | ✓ Full exchange observed |
| 10-02 08:13 | 40m | - / -12 | OE5PEN | -5 / - | 3 | ✓ Closing fragment |
| 10-02 08:10 | 40m | - / -9 | 9A4ZM | -11 / - | 2 | Partial capture |
| 10-02 08:07 | 40m | - / - | 9A4ZM | -8 / - | 2 | Partial capture |
| 10-02 08:03 | 40m | - / -15 | F1HFP | -13 / - | 6 | ✓ Closing fragment |
| 09-30 04:32 | 60m | -11 / - | KD4EBL | - / - | 2 | Partial capture |
| 09-30 04:31 | 60m | -16 / - | TM47CDXC | - / - | 2 | Partial capture |
| 09-25 04:35 | 60m | -14 / +6 | 9A4ZM | -4 / +2 | 6 | ✓ Full exchange observed |
| 09-25 04:35 | 60m | -14 / - | WB4MSG | - / +5 | 2 | ✓ Closing fragment |
| 09-25 04:32 | 60m | -14 / - | IK4CBO | -10 / +1 | 4 | Partial capture |
| 09-25 04:30 | 60m | -18 / -8 | DL9KM | -18 / -15 | 7 | ✓ Full exchange observed |
| 09-25 04:29 | 60m | -11 / - | LA2XNA | - / -11 | 2 | ✓ Closing fragment |
| 09-25 04:05 | 60m | -21 / -4 | SV1EKI | -3 / -4 | 4 | ✓ Full exchange observed |
| 09-25 04:03 | 60m | -19 / -11 | OH1LA | -18 / -14 | 6 | ✓ Full exchange observed |
| 09-25 04:01 | 60m | -18 / - | F5MYK | -12 / -14 | 4 | Partial capture |
| 09-25 04:00 | 60m | -18 / - | VE2LBI | - / -10 | 4 | ✓ Closing fragment |
| 09-25 03:42 | 60m | - / - | G6PWS | -3 / - | 11 | Partial capture |
| 09-25 03:41 | 60m | -12 / - | G0AZH | - / -9 | 3 | ✓ Closing fragment |
| 09-25 03:40 | 60m | - / - | ON7KEI | -6 / - | 2 | Partial capture |
| 09-25 03:38 | 60m | -22 / - | F5RRS | -18 / - | 3 | ✓ Closing observed |
| 09-25 03:35 | 60m | -24 / -12 | HG8LXL | -4 / - | 7 | ✓ Closing observed |
| 09-23 06:31 | 60m | - / -14 | DK4RH | -20 / - | 2 | ✓ Closing fragment |
| 09-23 06:27 | 60m | - / - | DL9KM | -15 / - | 7 | Partial capture |
| 09-23 06:27 | 60m | -24 / -8 | PA4PA | 0 / - | 3 | ✓ Closing observed |
| 09-23 06:19 | 60m | -22 / +1 | HA7TM | +3 / - | 3 | ✓ Closing observed |
| 09-23 06:16 | 60m | -20 / - | MI0NWA | - / - | 2 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 051415 -16 1655 V47NT IZ0HEI JN61 (x12) 052830 -7 629 IZ0HEI LZ2VQ KN23 053445 -13 629 WA4HR IZ0HEI -13 060515 -18 629 KZ7Y IZ0HEI -19
UTC dB Audio Message 043545 -4 1647 IZ0HEI 9A4ZM JN86 (x2) 043630 -16 1652 9A4ZM IZ0HEI +02 043645 -3 1647 IZ0HEI 9A4ZM R+06 043700 -11 1652 9A4ZM IZ0HEI RR73 043715 -1 1647 IZ0HEI 9A4ZM 73 043100 -17 1143 TM47CDXC IZ0HEI JN61 (x2) 043230 -13 687 KD4EBL IZ0HEI JN61 (x2) 164145 -17 1659 4L7T IZ0HEI -11 164245 -17 1659 OE1TKS IZ0HEI -03 164300 -10 1553 IZ0HEI OE1TKS R-03 164315 -14 1659 OE1TKS IZ0HEI RR73 164330 -7 1553 IZ0HEI OE1TKS 73
UTC dB Audio Message 045100 -9 714 IZ0HEI MI0NWA -12 (x2) 045145 -10 1621 MI0NWA IZ0HEI 73 045245 -10 1621 DO8JB IZ0HEI JN61
UTC dB Audio Message 042500 -14 2234 IZ0HEI F4FQY -16 044030 -12 844 IZ0HEI PA3DUU RR73 (x2)
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.
CW
No CW receptions recorded for this callsign in the last 30 days.
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