F5SZA — reception at SO8OO

Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.

FT8 activity

DXCC entity inferred from callsign: France Most frequent locator attributed to this token: IN95

Receiver-side FT8 activity involving F5SZA, decoded by SO8OO in southeastern Poland. 222 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 28 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-10-16.

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 222 FT8 messages attributed to F5SZA as the transmitting token by decoded message structure across 28 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (83%), followed by 40 m (17%). Most decodes (60%) fell within the six-hour window 04:00-10:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -15.5 dB.

Overview

222
Messages attributed
28
UTC dates decoded
57
Active 15-min windows
-15.5 dB
Estimated median S/N

Bands

40m · 37 20m · 185
First attributed message: 2026-06-08
Last attributed message: 2026-10-16 05:02 UTC

Observed FT8 message patterns

Attributed sample
222 messages
Active dates
28 UTC dates
Estimated median S/N
-15.5 dB
Estimated 10th-90th percentile
-22 to -7 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 111, moderate (-15 to -9 dB) 80, strong (≥ -8 dB) 31.

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 F5SZA 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 F5SZA

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
IN95 · 99 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,767 km (approx.)
Last such locator decoded
2026-10-16 05:02 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 UTCBandF5SZA S/NCounterpartCounterpart S/NMsgsCapture
10-16 04:59 40m -18 / - OA4ENG - / - 2 Partial capture
10-16 04:57 40m - / -13 YO9HP -2 / - 2 ✓ Closing fragment
10-16 04:49 40m -20 / - N2LEE - / - 2 ✓ Closing fragment
10-15 14:06 40m - / 0 DL6KA -7 / - 3 Partial capture
10-15 14:06 40m - / -7 IQ4JO -12 / - 3 ✓ Closing fragment
10-15 14:04 40m - / +1 F6EQZ -10 / - 3 ✓ Closing fragment
10-15 14:01 40m - / 0 DL6KA -10 / - 2 Partial capture
10-15 06:06 40m -13 / +5 DJ0MAB -6 / - 4 ✓ Closing observed
10-15 05:52 40m -20 / -16 OK1AMF -5 / -16 4 ✓ Full exchange observed
10-11 05:56 40m - / -4 S55A -8 / - 2 Partial capture
10-10 06:01 40m - / -3 OE3PBS -8 / - 2 ✓ Closing fragment
10-07 05:04 40m -21 / - CO8CF - / - 2 Partial capture
10-06 17:10 80m - / - 9A4ZM +7 / - 2 Partial capture
10-05 05:59 40m - / - IW6CUY -5 / - 2 Partial capture
10-01 16:06 40m - / - US2YW +5 / - 6 Partial capture
10-01 16:04 40m - / -3 F5PZT -9 / - 2 ✓ Closing fragment
09-30 14:32 40m - / -4 DL6EL -1 / - 3 ✓ Closing fragment
09-29 05:17 40m - / - R2PX 0 / - 2 Partial capture
09-29 05:12 40m -18 / - KB5YNF - / - 2 Partial capture
09-20 09:59 40m - / - G0RVY -14 / - 2 Partial capture
08-24 06:09 20m -2 / - KK6PMM - / - 4 Partial capture
08-23 07:19 20m -6 / - ZV8R - / - 2 Partial capture
08-23 05:33 20m - / - LZ3CB +10 / - 4 Partial capture
08-23 05:33 20m - / - RZ4FWA 0 / - 2 Partial capture
08-23 05:28 20m -5 / -13 UA4HBJ -4 / -11 6 ✓ Full exchange observed
08-23 05:17 40m - / - DJ0MAB -1 / - 3 Partial capture
08-23 05:15 40m - / - PF26GP -5 / - 5 Partial capture
08-23 05:15 40m - / - UX7QV -12 / - 5 Partial capture
08-22 18:18 20m - / -12 9A60CBM -8 / - 10 Partial capture
08-22 18:16 20m -4 / - II7MGMU - / - 2 Partial capture
08-22 18:10 20m -7 / - BG7ZHS - / -9 5 ✓ Closing fragment
08-19 20:34 20m -15 / - KE8YOU - / - 5 Partial capture
08-19 20:32 20m -15 / - N1EDF - / - 5 Partial capture
08-19 20:30 20m -11 / - SP9SOS - / -11 2 ✓ Closing fragment
08-19 20:29 20m -8 / - TJ1GD - / - 2 Partial capture
08-19 20:22 20m -11 / - TJ1GD - / - 6 Partial capture
08-18 19:45 40m - / -1 F1PBZ -11 / - 4 Partial capture
08-17 08:46 20m - / - OE9RWH -16 / - 4 Partial capture
08-17 08:43 20m - / -21 PD4HT -14 / - 4 Partial capture
08-17 08:23 20m - / - DK4RH -24 / - 2 Partial capture
08-17 08:14 20m - / -21 DL3MN -12 / - 2 ✓ Closing fragment
08-17 08:13 20m - / - PD1ADA -18 / - 7 Partial capture
08-15 14:23 20m -19 / - RW3C/P - / -16 9 Partial capture
08-15 14:07 20m -18 / - SP1ZMO - / -14 4 Partial capture
08-15 14:03 20m -20 / - EW1MN - / -15 3 Partial capture
08-15 13:59 20m -20 / - EW1MN - / -15 2 Partial capture
08-12 06:48 20m - / - DL1YS -14 / - 2 Partial capture
08-12 06:42 20m - / - DL1YS -14 / - 4 Partial capture
08-12 06:38 20m - / - PE1NPS -15 / - 2 Partial capture
08-12 06:36 20m - / - DL1YS -14 / - 7 Partial capture

Recent FT8 messages decoded at SO8OO

Frequency values are decoder audio offsets in hertz, not RF frequencies.

40m 
UTC    dB Audio  Message
140700  -7  638  F5SZA DL6KA +00 (x2)
044830 -17 1722  CQ F5SZA IN95
044930 -21 1723  N2LEE F5SZA RR73 (x2)
045515 -20 1723  KA9EKJ F5SZA IN95
045645 -20 1723  KE5ETC F5SZA IN95
045730  -1 1839  F5SZA YO9HP -13 (x2)
045945 -18 1668  OA4ENG F5SZA IN95 (x2)
050145 -16 1668  CQ F5SZA IN95                         a1 (x3)
082200 -20 1583  F5SZA F1IQH JN27
80m 
UTC    dB Audio  Message
171030 +10 1836  F5SZA 9A4ZM JN86 (x2)
20m 
UTC    dB Audio  Message
053315  +7 2353  F5SZA LZ3CB KN32
053330  +2 1516  CQ F5SZA IN95
053345  -1 2070  F5SZA RZ4FWA LO23
053345 +10 2353  F5SZA LZ3CB KN32
053400  +4 1516  CQ F5SZA IN95
053415  +9 2353  F5SZA LZ3CB KN32 (x2)
071430  -5 2548  F5SZA PD9FLX JO22
071630 -14 1480  F5SZA DL0GEO JO33
071945  -5 1481  ZV8R F5SZA IN95 (x2)
060900  -6 1567  KK6PMM F5SZA IN95 (x4)

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 SO8OO

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