F4GAJ — 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: IN99

Receiver-side FT8 activity involving F4GAJ, decoded by SO8OO in southeastern Poland. 4,675 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, 10m, across 126 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-11-06.

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 4,675 FT8 messages attributed to F4GAJ as the transmitting token by decoded message structure across 126 UTC dates in the available aggregate history. The largest monitored-band total was 60 m (48%), followed by 40 m (20%) and 80 m (17%). Most decodes (81%) 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 -14 dB.

Overview

4,675
Messages attributed
126
UTC dates decoded
605
Active 15-min windows
-14 dB
Estimated median S/N

Bands

First attributed message: 2026-06-07
Last attributed message: 2026-11-06 05:13 UTC

Observed FT8 message patterns

Attributed sample
4,675 messages
Active dates
126 UTC dates
Estimated median S/N
-14 dB
Estimated 10th-90th percentile
-21 to -6 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 1,845, moderate (-15 to -9 dB) 2,037, strong (≥ -8 dB) 793.

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 · 3,653 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,633 km (approx.)
Last such locator decoded
2026-11-06 05:13 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
11-06 10:15 10m - / -11 EB5HRZ -9 / - 3 ✓ Closing fragment
11-06 05:13 60m -15 / - KT4ZX - / -2 2 Partial capture
11-06 05:10 60m -16 / - W4GAF - / -12 3 ✓ Closing fragment
11-06 05:09 60m -12 / - NE9U - / -9 2 ✓ Closing fragment
11-05 19:25 60m -18 / - SP1TB - / -20 2 Partial capture
11-05 19:19 60m -13 / - SM5BVV - / +2 5 ✓ Closing fragment
11-05 19:15 60m -13 / - OH3MB -18 / -5 3 ✓ Closing observed
11-05 19:11 60m -13 / - GI4NKB - / -6 4 ✓ Closing fragment
11-05 19:09 60m -14 / +5 GI7NKK -13 / +5 5 ✓ Full exchange observed
11-05 04:37 80m - / - IU2THY +10 / - 3 Partial capture
11-04 06:22 60m -14 / - F4HSB - / +1 2 ✓ Closing fragment
11-04 06:19 60m -13 / - N0FX - / - 4 Partial capture
11-03 05:57 40m -3 / - CM7ADV - / - 3 Partial capture
11-03 05:37 60m -7 / - HC5F - / - 6 Partial capture
11-03 05:35 60m - / - YL3NF -6 / - 2 Partial capture
11-03 05:33 60m -7 / - HC5F - / - 2 Partial capture
11-03 05:31 60m -7 / -5 HA2EOU -4 / 0 5 ✓ Full exchange observed
11-03 05:20 60m -6 / - HC5F - / - 12 Partial capture
11-03 04:20 60m -14 / - N2PPP - / - 4 Partial capture
11-03 04:16 60m -12 / - N2PPP - / - 2 Partial capture
11-03 04:13 60m -13 / - KD2TDA - / -13 4 ✓ Closing fragment
11-02 18:59 60m -12 / 0 PA3EAQ -11 / - 3 ✓ Closing observed
11-02 08:16 40m -18 / - F4JDS - / - 3 Partial capture
11-01 06:35 40m -14 / - ZL4JB - / - 5 Partial capture
11-01 06:25 40m -16 / - ZL4JB - / - 2 Partial capture
11-01 06:21 40m -12 / - 6W/IK2HKT - / -7 2 Partial capture
11-01 06:12 40m -13 / - 6W/IK2HKT - / -13 2 Partial capture
11-01 06:05 40m -18 / - ZL4KX - / -11 4 ✓ Closing fragment
11-01 04:34 60m -18 / - KB3VNG - / - 2 Partial capture
11-01 04:26 60m -8 / - KB3VNG - / -13 2 Partial capture
10-31 19:37 60m -8 / - F5OYA/P - / - 3 Partial capture
10-31 19:04 60m -18 / +9 DL4YDR -10 / -4 5 ✓ Full exchange observed
10-31 19:00 60m -13 / - OK1SVD - / -11 2 ✓ Closing fragment
10-31 18:59 60m - / -4 F1PBZ +1 / - 3 Partial capture
10-31 17:36 40m -5 / - JR3REX - / - 4 Partial capture
10-31 06:41 40m -15 / - 6W/IK2HKT - / - 2 Partial capture
10-31 06:39 40m -14 / - FK8HC - / - 7 Partial capture
10-31 06:38 40m -16 / - IT9ACJ/QRP - / - 3 Partial capture
10-31 05:50 40m -9 / - W0CJA - / - 2 Partial capture
10-31 05:43 40m -6 / - SP9SOS - / -10 5 ✓ Closing fragment
10-31 04:38 60m -17 / - N2LCX - / -17 4 ✓ Closing fragment
10-31 04:33 60m -15 / - I1WQR - / +8 2 ✓ Closing fragment
10-31 04:27 60m -11 / - AJ5CI - / -22 2 ✓ Closing fragment
10-31 04:23 60m -10 / - K3ATA - / -10 3 ✓ Closing fragment
10-31 04:15 60m -3 / -12 PA4PA -8 / -10 5 ✓ Full exchange observed
10-31 04:12 60m -12 / - S9R - / -13 4 ✓ Closing fragment
10-30 19:22 60m -14 / -9 OI6C -16 / +2 5 ✓ Full exchange observed
10-30 19:19 60m -13 / - EI5JL - / -5 4 ✓ Closing fragment
10-30 05:14 40m -22 / - OK2FKU - / - 2 ✓ Closing fragment
10-29 04:43 60m -12 / - KE9CWZ - / -19 3 Partial capture

Recent FT8 messages decoded at SO8OO

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

10m
UTC    dB Audio  Message
072615 -21 1487  CQ F4GAJ IN99 (x4)
073215 -13 2228  F4GAJ DK8ZZ JO30
125230 -16  968  F4GAJ 7Z1IS RRR (x3)
145430 -17 1005  F4GAJ CT3MD IM13 (x3)
092345 -12 1326  F4GAJ SY2CWM KN10
101515  -6 2092  F4GAJ EB5HRZ IM99 (x3)
60m
UTC    dB Audio  Message
192230 -15 1233  CQ F4GAJ IN99 (x3)
192500 -19 1234  SP1TB F4GAJ -20 (x2)
050215 -16 2333  KD2TDA F4GAJ 73
050400 -17 2333  CQ F4GAJ IN99                         a1 (x2)
050900 -14 2334  NE9U F4GAJ R-09 (x2)
051030 -16 2333  W4GAF F4GAJ IN99 (x3)
051300 -15 2334  KT4ZX F4GAJ IN99 (x2)
80m
UTC    dB Audio  Message
185330 -10 1703  PG7VG F4GAJ 73
185400  -8 1703  F4MVM F4GAJ IN99 (x3)
185730 -13 1703  HA4UC F4GAJ IN99
185830 -13 1703  CQ F4GAJ IN99 (x2)
193815 -14 1402  G4FHL F4GAJ IN99
190745 -19 1403  CQ F4GAJ IN99 (x3)
194045 +16  353  F4GAJ SP5JMA KO02
043745  +5 2717  F4GAJ IU2THY JN45 (x3)
40m
UTC    dB Audio  Message
063600 -12 1839  ZL4JB F4GAJ IN99 (x4)
054815 -20 2039  KZ7Y F4GAJ IN99 (x2)
081645 -18 1289  F4JDS F4GAJ IN99 (x3)
082100 -12  505  F4GAJ F4JDS RR73
055745  -2 2640  CM7ADV F4GAJ IN99 (x3)
060415  -9 2640  CQ DX F4GAJ IN99 (x2)
160m
UTC    dB Audio  Message
164315 -22 1796  F4GAJ IU3ULH JN55
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.

CW

No CW receptions recorded for this callsign in the last 30 days.

Explore CW reception at SO8OO

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