F4GAJ — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: France Most frequent locator attributed to this token: IN99

Receiver-side FT8 activity involving F4GAJ, decoded by SO8OO in southeastern Poland. 1,746 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, 10m, across 81 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-09-20.

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 1,746 FT8 messages attributed to F4GAJ as the transmitting token by decoded message structure across 81 UTC dates in the available aggregate history. The largest monitored-band total was 60 m (34%), followed by 10 m (21%) and 20 m (20%). Most decodes (75%) fell within the six-hour window 03:00-09:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -16 dB.

Overview

1,746
Messages attributed
81
UTC dates decoded
315
Active 15-min windows
-16 dB
Estimated median S/N

Bands

First attributed message: 2026-06-07
Last attributed message: 2026-09-20 04:43 UTC

Observed FT8 message patterns

Attributed sample
1,746 messages
Active dates
81 UTC dates
Estimated median S/N
-16 dB
Estimated 10th-90th percentile
-22.2 to -8 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 965, moderate (-15 to -9 dB) 587, strong (≥ -8 dB) 194.

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.

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 F4GAJ

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
IN99 · 1,300 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,633 km (approx.)
Last such locator decoded
2026-09-20 04:43 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 UTCBandF4GAJ S/NCounterpartCounterpart S/NMsgsCapture
09-20 04:37 60m -14 / - VA3WLD - / -17 2 ✓ Closing fragment
09-20 04:36 60m - / 0 F1PBZ +6 / - 3 Partial capture
09-20 04:34 60m -14 / - WP3UX - / - 2 Partial capture
09-20 04:13 60m -12 / - AA9JS - / -11 7 Partial capture
09-20 04:09 60m -16 / - AA9JS - / - 3 Partial capture
09-20 03:50 60m -14 / - WX7P - / -13 4 ✓ Closing fragment
09-19 04:58 60m -17 / - W1FAM - / - 3 Partial capture
09-18 19:18 60m - / - SP9DPI -16 / - 2 Partial capture
09-18 19:17 60m - / - IV3DSG +2 / - 2 Partial capture
09-18 19:11 60m - / - G3UHU -11 / - 5 Partial capture
09-18 19:08 60m -14 / -15 DL2OAM -12 / -6 5 ✓ Full exchange observed
09-18 19:08 60m -14 / -24 HA3PG -8 / -11 7 Partial capture
09-18 19:08 60m -15 / -1 OM5JG +3 / -1 7 ✓ Full exchange observed
09-18 19:07 60m - / - G3UHU -14 / - 3 Partial capture
09-18 19:07 60m - / - IV3DSG 0 / - 6 Partial capture
09-18 19:05 60m -22 / -9 DC5CH -6 / +1 3 Partial capture
09-18 19:03 60m -18 / - LA1XFA -2 / - 5 ✓ Full exchange observed
09-18 19:01 60m -18 / -7 TM35DCM -19 / - 4 Partial capture
09-17 05:05 60m -19 / - 6Y5HN - / -3 6 Partial capture
09-17 04:48 60m -12 / - 6Y5HN - / - 3 Partial capture
09-17 04:40 60m -18 / - 6Y5HN - / - 7 Partial capture
09-17 04:32 60m -17 / - S57MPU - / - 7 Partial capture
09-17 03:58 60m -10 / - N4KZ - / - 5 Partial capture
09-17 03:55 60m -10 / - W8ATE - / -6 5 Partial capture
09-17 03:52 60m -6 / - KC3AK - / -17 4 ✓ Closing fragment
09-17 03:45 60m -14 / - KC4QX - / -4 3 ✓ Closing fragment
09-16 06:09 60m -21 / -14 F5LRU -14 / -15 3 ✓ Full exchange observed
09-16 04:41 60m -19 / -18 F6ICX -3 / -15 5 ✓ Full exchange observed
09-15 18:46 80m - / -9 OZ1EDR -3 / - 4 ✓ Closing fragment
09-15 07:28 40m -18 / - DJ7XY - / +2 2 ✓ Closing fragment
09-15 07:20 40m - / -18 DJ2DL -15 / - 3 ✓ Closing fragment
09-14 06:18 40m -9 / - VE3GLN - / -3 2 ✓ Closing fragment
09-14 06:16 40m - / - UF2F +3 / - 2 Partial capture
09-14 06:11 40m -14 / - VP5/K5UR - / - 7 Partial capture
09-14 04:07 60m -20 / - W6VJT - / - 2 Partial capture
09-14 03:50 60m -16 / -15 EW2RA -6 / +2 4 ✓ Full exchange observed
09-14 03:42 60m -14 / - KD4EBL - / -12 4 Partial capture
09-14 03:35 60m -10 / - W1PID - / -14 3 Partial capture
09-13 18:31 60m - / -6 EA5YI -15 / - 3 ✓ Closing fragment
09-13 18:24 60m -21 / -10 SP5MIG -1 / - 4 ✓ Closing observed
09-13 18:18 60m - / -3 SM5VSS -2 / - 2 ✓ Closing fragment
09-13 18:16 60m -17 / +1 ON6AA -10 / - 4 ✓ Closing observed
09-13 18:14 60m -21 / - G4ZFJ -1 / - 4 ✓ Full exchange observed
09-13 18:14 60m -20 / -8 LY8O +2 / 0 8 ✓ Full exchange observed
09-13 07:48 40m - / - F4BYA -5 / - 7 Partial capture
09-13 07:39 40m - / -19 F1HFP -7 / - 4 ✓ Closing fragment
09-13 07:37 40m - / - F4BYA 0 / - 2 Partial capture
09-13 04:35 40m -8 / - WF1B - / -9 3 ✓ Closing fragment
09-13 04:26 40m -10 / - SP5MIG - / -6 2 ✓ Closing fragment
09-13 04:14 40m -13 / - WP4TUN - / -9 3 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

60m
UTC    dB Audio  Message
043645 -15 1834  CQ F4GAJ IN99
043700 +11 2737  F4GAJ F1PBZ +00
043715 -18 1834  CQ F4GAJ IN99
043730  +2 2737  F4GAJ F1PBZ +00
043745 -15 1835  VA3WLD F4GAJ -17 (x2)
043845 -16 1835  CQ F4GAJ IN99                         a1 (x9)
40m
UTC    dB Audio  Message
061915  -9 2539  VE3GLN F4GAJ 73
062015 -13 2539  D44TWO F4GAJ IN99
050530 -23 1839  CQ F4GAJ IN99                         a1 (x4)
071900 -16 2271  F4GAJ DL/AD2LX R-18
072030 -15 2039  F4GAJ DJ2DL JO31 (x3)
072815 -20 2039  CQ F4GAJ IN99
072845 -19 2038  DJ7XY F4GAJ +02 (x2)
073045 -21 2039  SV8/SV1TQB F4GAJ IN99
155415  -3 1639  F4GAJ DL6ZOG JO52
80m
UTC    dB Audio  Message
180745  -4 1681  F4GAJ DO1SJF 73
182615 -18 1803  ON5MX F4GAJ IN99 (x2)
184645 -20 1803  CQ F4GAJ IN99
185130 -12 1895  F4GAJ DO1SJF JN48 (x4)
183845 -16 1603  CQ F4GAJ IN99
184600  -4 1237  F4GAJ OZ1EDR JO65 (x4)
043645 -14 1604  CQ F4GAJ IN99                         a1
043700  +5  426  F4GAJ PA4PA JO22
10m
UTC    dB Audio  Message
071415 -23 1490  FK8HA F4GAJ IN99 (x7)
072345 -24 1487  VK6IR F4GAJ IN99
072515 -18 1487  CQ F4GAJ IN99 (x6)
073215 -13 2228  F4GAJ DK8ZZ JO30
20m
UTC    dB Audio  Message
044330 -20 2124  BG0DLA F4GAJ IN99 (x3)
044630 -24 2124  CQ F4GAJ IN99                         a1 (x9)
061845 -18 1275  OM1AMT F4GAJ -12 (x2)
065345 -21 2174  CQ F4GAJ IN99

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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