7Z1AV — 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 7Z1AV, decoded by SO8OO in southeastern Poland. 50 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 8 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-10-22.
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 50 FT8 messages attributed to 7Z1AV as the transmitting token by decoded message structure across 8 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (78%), followed by 40 m (22%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's moderate S/N range (66%); the estimated median was -13 dB.
Overview
Bands
Last attributed message: 2026-10-22 17:58 UTC
Observed FT8 message patterns
- Attributed sample
- 50 messages
- Active dates
- 8 UTC dates
- Estimated median S/N
- -13 dB
- Estimated 10th-90th percentile
- -20 to -10 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 16, moderate (-15 to -9 dB) 33, 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 7Z1AV 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 7Z1AV
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
- LK18 · 19 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 3,972 km (approx.)
- Last such locator decoded
- 2026-10-22 17:57 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 | 7Z1AV S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-22 17:44 | 40m | - / -3 | R3UDU | -12 / - | 2 | ✓ Closing fragment |
| 10-22 17:44 | 40m | - / -14 | F5AKY | -8 / - | 2 | Partial capture |
| 10-22 17:25 | 40m | - / -13 | DK7ZT | +7 / - | 3 | Partial capture |
| 10-22 17:22 | 40m | - / -16 | UB6OCP | -7 / - | 2 | Partial capture |
| 10-22 17:17 | 40m | -17 / - | LZ1DPP | -13 / -12 | 3 | ✓ Closing observed |
| 10-22 17:15 | 40m | - / -21 | IU5HIU | -9 / - | 5 | ✓ Closing fragment |
| 10-22 17:13 | 40m | - / - | R3DID | -12 / - | 2 | Partial capture |
| 10-22 17:05 | 40m | - / - | RD3FY | +2 / - | 5 | Partial capture |
| 10-22 17:02 | 40m | - / -12 | OH5KNL | +5 / - | 4 | ✓ Closing fragment |
| 10-22 17:02 | 40m | - / -15 | PA2DX | +3 / - | 3 | ✓ Closing fragment |
| 10-22 17:01 | 40m | - / - | PE1NPS | -2 / - | 2 | Partial capture |
| 10-22 17:00 | 40m | - / - | PA1VW | -15 / - | 4 | Partial capture |
| 10-20 20:07 | 40m | - / - | RD3FY | -2 / - | 5 | Partial capture |
| 10-20 20:05 | 40m | - / -23 | JF1UVJ | -18 / - | 3 | Partial capture |
| 10-20 19:55 | 40m | - / - | F5PBG | -8 / - | 2 | Partial capture |
| 10-20 19:54 | 40m | - / -12 | DK7ZT | -5 / - | 3 | Partial capture |
| 10-20 19:54 | 40m | - / -3 | OS4K | -15 / - | 3 | Partial capture |
| 10-20 19:48 | 40m | - / - | RD3FY | -2 / - | 4 | Partial capture |
| 10-20 18:42 | 40m | -12 / - | SA6BZZ | -15 / -15 | 4 | Partial capture |
| 10-20 18:41 | 40m | - / - | RD3FY | -7 / - | 5 | Partial capture |
| 10-20 18:24 | 40m | - / -15 | R1AV | -16 / - | 3 | ✓ Closing fragment |
| 10-20 18:15 | 40m | - / -20 | RD3FY | 0 / - | 6 | Partial capture |
| 10-20 18:02 | 40m | - / -9 | R6FX | -12 / - | 3 | ✓ Closing fragment |
| 08-29 19:58 | 20m | - / - | DG9SEH | -19 / - | 2 | Partial capture |
| 08-29 19:19 | 20m | - / -6 | IU0PXF | -10 / - | 3 | ✓ Closing fragment |
| 08-28 17:52 | 20m | -14 / - | 3A2MW | - / -19 | 2 | ✓ Closing fragment |
| 08-28 17:27 | 20m | - / -18 | IZ8EDI | +8 / - | 3 | ✓ Closing fragment |
| 08-28 17:10 | 20m | - / +4 | F4LSL | +11 / - | 4 | ✓ Closing fragment |
| 08-23 18:09 | 20m | - / - | IU0VOG | -10 / - | 2 | Partial capture |
| 08-23 18:06 | 20m | - / -15 | GJ0KYZ | 0 / - | 2 | ✓ Closing fragment |
| 08-23 04:27 | 20m | - / -21 | R6OK | -14 / - | 2 | ✓ Closing fragment |
| 08-23 03:55 | 20m | - / -14 | RK6AAC | -8 / - | 3 | ✓ Closing fragment |
| 08-19 20:28 | 20m | - / - | IK1RQX | -10 / - | 4 | Partial capture |
| 08-06 08:52 | 20m | - / - | UA4FKT | -18 / - | 2 | Partial capture |
| 07-27 18:37 | 20m | - / -15 | RC6OG | -16 / - | 6 | ✓ Closing fragment |
| 07-25 21:13 | 20m | - / -16 | F4MBU | -12 / - | 4 | ✓ Closing fragment |
| 07-25 21:08 | 20m | - / - | RA4FUT | -21 / - | 3 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 171930 -24 1539 7Z1AV RA3ZH 73 172200 -9 2418 7Z1AV UB6OCP KN88 (x2) 172530 +5 2488 7Z1AV DK7ZT -13 (x3) 174200 -23 1538 7Z1AV R3UDU LO07 174400 -9 1716 7Z1AV F5AKY -14 174430 -12 1539 7Z1AV R3UDU R-03 174430 -8 1717 7Z1AV F5AKY -14 174500 -12 1539 7Z1AV R3UDU 73 175715 -13 1539 CQ 7Z1AV LK18 175800 -4 1538 7Z1AV RU3NCW LO08 175830 -14 1539 7Z1AV F5PBG IN78 175845 -17 1539 SP9Q 7Z1AV RR73
UTC dB Audio Message 085915 -21 2184 7Z1AV 5Z4VJ +18
UTC dB Audio Message 172245 -19 1576 F1PBZ 7Z1AV R-08 172415 -16 1576 7X2KF 7Z1AV RR73 172515 -13 1576 HA8KP 7Z1AV 73 172700 +8 1576 7Z1AV IZ8EDI JN70 (x3) 172830 -2 1185 7Z1AV M9XZY -11 175245 -16 1576 3A2MW 7Z1AV R-19 (x2) 191945 -10 1582 7Z1AV IU0PXF JN61 (x3) 192045 -13 2566 7Z1AV HA7XL JN97 195815 -17 1513 7Z1AV DG9SEH JN48 (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.
Explore CW reception at SO8OOFT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee