SA4FZA — 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 SA4FZA, decoded by SO8OO in southeastern Poland. 320 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, across 15 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-10-20.
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 320 FT8 messages attributed to SA4FZA as the transmitting token by decoded message structure across 15 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (50%), followed by 40 m (26%) and 160 m (22%). Most decodes (96%) fell within the six-hour window 18:00-00:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (63%); the estimated median was -6.1 dB.
Overview
Bands
Last attributed message: 2026-10-20 19:52 UTC
Observed FT8 message patterns
- Attributed sample
- 320 messages
- Active dates
- 15 UTC dates
- Estimated median S/N
- -6.1 dB
- Estimated 10th-90th percentile
- -17 to 0 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 45, moderate (-15 to -9 dB) 72, strong (≥ -8 dB) 203.
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 SA4FZA 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 SA4FZA
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
- JP60 · 102 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,298 km (approx.)
- Last such locator decoded
- 2026-10-16 21:41 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 | SA4FZA S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-19 20:12 | 40m | - / -19 | IU5HIU | -5 / - | 4 | ✓ Closing fragment |
| 10-19 19:45 | 40m | -16 / - | BI8SCC | - / -19 | 4 | Partial capture |
| 10-19 19:25 | 40m | - / - | OE6TNO | -8 / - | 2 | Partial capture |
| 10-19 19:24 | 40m | - / - | RY7G | -3 / - | 2 | Partial capture |
| 10-16 21:42 | 80m | -6 / +1 | PC2J | -8 / -10 | 4 | ✓ Full exchange observed |
| 10-16 21:41 | 80m | -8 / -8 | DK2CI | +2 / -12 | 7 | ✓ Full exchange observed |
| 10-16 21:40 | 80m | -8 / -12 | EA3AKY | -12 / -4 | 5 | ✓ Full exchange observed |
| 10-16 21:37 | 80m | -7 / - | 5Z4AB | - / -5 | 7 | Partial capture |
| 10-16 21:36 | 80m | - / -5 | SP3JHZ | +14 / - | 2 | Partial capture |
| 10-16 21:35 | 80m | -2 / +1 | F5MXH | 0 / - | 3 | ✓ Closing observed |
| 10-16 21:33 | 80m | -6 / +1 | IV3IHV | +6 / +4 | 6 | ✓ Full exchange observed |
| 10-16 21:23 | 160m | - / - | HA6NN | -6 / - | 8 | Partial capture |
| 10-16 21:19 | 160m | -11 / - | OM2WW | - / +5 | 6 | Partial capture |
| 10-16 21:15 | 160m | -5 / 0 | 4J3DJ | -1 / -5 | 8 | ✓ Full exchange observed |
| 10-16 21:12 | 160m | -6 / - | RU3T | - / -11 | 2 | Partial capture |
| 10-16 21:09 | 160m | -3 / - | 9A4ZM | -4 / -20 | 5 | Partial capture |
| 10-16 21:06 | 160m | - / - | RU3T | -10 / - | 2 | Partial capture |
| 10-16 21:05 | 160m | - / +2 | DK7ZT | -12 / - | 5 | Partial capture |
| 10-16 21:04 | 160m | - / - | LA9JKA | -14 / - | 2 | Partial capture |
| 10-16 21:04 | 160m | - / -10 | R5AV | -3 / - | 9 | Partial capture |
| 10-16 21:04 | 160m | - / - | HG9FS | 0 / - | 2 | Partial capture |
| 10-14 19:47 | 40m | - / -18 | IU8RFW | -10 / - | 3 | ✓ Closing fragment |
| 10-14 19:45 | 40m | - / -6 | IU4DTV | -2 / - | 2 | ✓ Closing fragment |
| 10-14 19:43 | 40m | - / -5 | IZ0ZIP | +2 / - | 2 | ✓ Closing fragment |
| 10-14 19:39 | 40m | - / -13 | SV1EKI | -10 / - | 5 | ✓ Closing fragment |
| 10-13 21:42 | 80m | - / - | SP4WJ | 0 / - | 5 | Partial capture |
| 10-13 21:35 | 80m | - / -11 | OE3OOG | +9 / - | 4 | ✓ Closing fragment |
| 10-13 21:33 | 80m | - / -14 | YO4NF | +13 / - | 3 | ✓ Closing fragment |
| 10-13 21:29 | 80m | - / -1 | DD5SI | +2 / - | 7 | ✓ Closing fragment |
| 10-13 21:29 | 80m | - / - | UA6LQZ | +4 / - | 4 | Partial capture |
| 10-13 21:28 | 80m | - / -4 | YO4NF | +6 / - | 2 | Partial capture |
| 10-13 21:18 | 160m | -3 / - | UA4FKT | -5 / -6 | 5 | Partial capture |
| 10-13 21:12 | 160m | -12 / - | 4J3DJ | - / -9 | 4 | Partial capture |
| 10-12 20:15 | 80m | - / -2 | DK1MCS | +10 / - | 4 | ✓ Closing fragment |
| 10-12 20:13 | 80m | +6 / -17 | DK8HC | -1 / - | 5 | ✓ Closing observed |
| 10-12 20:11 | 80m | 0 / - | DO1SWC | - / -15 | 2 | ✓ Closing fragment |
| 10-12 20:06 | 80m | -4 / -2 | SP1RKT | -1 / -8 | 6 | ✓ Full exchange observed |
| 10-12 20:03 | 80m | - / - | DA6WA | -14 / - | 2 | Partial capture |
| 10-12 19:59 | 80m | -3 / -13 | YO8CRU | 0 / -24 | 12 | Partial capture |
| 10-12 19:57 | 80m | -2 / -4 | HB9DKG | +4 / -15 | 7 | ✓ Full exchange observed |
| 10-12 19:56 | 80m | -4 / +6 | LY1DY | +6 / +6 | 5 | ✓ Full exchange observed |
| 10-12 19:54 | 80m | -10 / -4 | SP3HGD | -4 / -11 | 6 | ✓ Full exchange observed |
| 10-12 19:53 | 80m | -9 / - | M8DBS | -10 / -16 | 3 | ✓ Closing observed |
| 10-12 19:53 | 80m | - / - | DO1SWC | -4 / - | 2 | Partial capture |
| 10-12 19:51 | 80m | - / - | DL9KM | +1 / - | 3 | Partial capture |
| 10-12 19:51 | 80m | - / - | DO1NJN | 0 / - | 3 | Partial capture |
| 10-12 19:51 | 80m | -14 / -5 | UT5ECZ | +6 / +4 | 4 | ✓ Full exchange observed |
| 10-12 19:48 | 80m | -6 / -18 | R4HLO | -17 / -14 | 2 | Partial capture |
| 10-12 19:48 | 80m | - / -14 | DL1IP | +6 / - | 3 | ✓ Closing fragment |
| 10-12 19:42 | 80m | -10 / - | LZ2VQ | - / -10 | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 192445 -5 2405 SA4FZA RY7G LN14 192515 -6 2406 SA4FZA OE6TNO JN77 (x2) 192630 -18 2406 BI8SCC SA4FZA -22 192830 -15 2406 S51PV SA4FZA -07 (x2) 194500 -11 2405 BI8SCC SA4FZA -19 (x4) 201215 -5 485 SA4FZA IU5HIU JN53 (x4) 195230 -21 1067 ER3BN SA4FZA +04
UTC dB Audio Message 214145 -6 2244 SA4FZA EA3AKY R-12 214200 -9 2367 EA3AKY SA4FZA RR73 214215 -15 2244 SA4FZA EA3AKY 73 214215 +4 2368 SA4FZA DK2CI JO50 214230 -4 2367 PC2J SA4FZA -10 214245 -8 2366 SA4FZA PC2J R+01 214300 -7 2367 PC2J SA4FZA RR73 214315 -9 2367 SA4FZA PC2J 73 214345 +10 2367 SA4FZA SP6FME JO90 214400 -4 2368 DK2CI SA4FZA -12 (x2) 214445 -1 2368 SA4FZA DK2CI R-08 214500 -8 2367 DK2CI SA4FZA RR73 214515 -2 2368 SA4FZA DK2CI 73 214730 -7 2367 DK2CI SA4FZA 73
UTC dB Audio Message 211745 -4 415 SA4FZA 4J3DJ 73 211900 -12 2359 OM2WW SA4FZA +05 (x6) 212315 -8 1542 SA4FZA HA6NN JN98 (x8)
UTC dB Audio Message 194145 +9 1587 SA4FZA 9A3K R-13 194215 -11 1787 SA4FZA R4FDW -01 194215 +9 1587 SA4FZA 9A3K R-13 (x3) 194415 -12 1786 SA4FZA R4FDW RR73 194415 +5 1987 SA4FZA 9A3K JN65 (x3) 195615 -3 2769 SA4FZA F1PBZ -15 (x3) 220915 +2 2779 SA4FZA F4ACR IN96 (x3)
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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