AJ9C — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: United States Most frequent locator attributed to this token: EN70

Receiver-side FT8 activity involving AJ9C, decoded by SO8OO in southeastern Poland. 10 FT8 messages attributed to this token as transmitter, on 80m, 20m, across 3 UTC dates in the available aggregate history. Observed between 2026-08-26 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 10 FT8 messages attributed to AJ9C as the transmitting token by decoded message structure across 3 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (80%), followed by 80 m (20%). In this small sample, the estimated median decoder S/N was -12 dB; no usual signal pattern is inferred.

Overview

10
Messages attributed
3
UTC dates decoded
4
Active 15-min windows
-12 dB
Estimated median S/N

Bands

80m · 2 20m · 8
First attributed message: 2026-08-26
Last attributed message: 2026-09-20 00:21 UTC

Observed FT8 message patterns

Attributed sample
10 messages
Active dates
3 UTC dates
Estimated median S/N
-12 dB
S/N percentile sample
Too small
Recurring-pattern threshold
Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 2, moderate (-15 to -9 dB) 6, strong (≥ -8 dB) 2.

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. The sample does not meet the threshold for a recurring time or signal-pattern claim (20 attributed messages, three UTC dates and five distinct 15-minute windows).

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with AJ9C in decoded directed-looking exchanges:

Most frequent locator attributed to AJ9C

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
EN70 · 2 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
7,691 km (approx.)
Last such locator decoded
2026-09-20 00:19 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 UTCBandAJ9C S/NCounterpartCounterpart S/NMsgsCapture
09-20 00:19 80m -24 / - YO4ATW - / - 2 ✓ Closing fragment
09-19 23:51 80m - / - DH1KJ +4 / - 2 Partial capture
09-19 02:47 80m - / -16 LZ2JE +6 / - 5 ✓ Closing fragment
09-19 02:41 80m - / -4 PI4DX -8 / - 5 ✓ Closing fragment
08-31 12:38 20m - / - M7PHE -7 / - 3 Partial capture
08-31 12:32 20m - / -18 DL3RL +14 / - 7 ✓ Closing fragment
08-31 12:29 20m - / - DL3RL +12 / - 2 Partial capture
08-31 12:26 20m - / - M7PHE -13 / - 2 Partial capture
08-31 12:23 20m - / - DG1KFR -5 / - 4 Partial capture
08-31 12:08 20m - / - DL6YJB -1 / - 8 Partial capture
08-31 11:58 20m - / -18 F4NGK -5 / - 4 ✓ Closing fragment
08-31 11:57 20m - / -16 EB3JT +8 / - 8 ✓ Closing fragment
08-30 13:06 20m - / - F9SS +1 / - 7 Partial capture
08-30 12:30 20m - / -11 PD1HPB 0 / - 2 ✓ Closing fragment
08-30 12:24 20m - / - M0ARF -10 / - 2 Partial capture
08-30 12:20 20m - / - LA1QAA -8 / - 2 Partial capture
08-26 13:04 20m - / - R8CKD -4 / - 3 Partial capture
08-26 13:04 20m - / - PD5FL -4 / - 4 Partial capture
08-26 12:53 20m - / - IK4LZH -2 / - 3 Partial capture
08-26 12:52 20m - / - DF4WC +10 / - 3 Partial capture
08-26 12:48 20m - / - HB9SDO -4 / - 3 Partial capture
08-26 12:41 20m - / - RC6OG -7 / - 3 ✓ Closing fragment
08-26 12:38 20m - / - PD0PET -1 / - 5 Partial capture
08-26 12:38 20m -12 / - BD4VPZ - / -15 2 Partial capture
08-26 12:38 20m - / - G7RCQ -2 / - 6 Partial capture
08-26 12:38 20m - / - IK4LZH 0 / - 4 Partial capture
08-26 12:36 20m - / - PD1GF -5 / - 6 Partial capture
08-26 12:32 20m - / - G7RCQ 0 / - 4 Partial capture
08-26 12:29 20m - / -10 CT3MD -2 / - 5 ✓ Closing fragment
08-26 12:29 20m - / -15 PA3DHR -5 / - 2 Partial capture
08-26 12:22 20m - / -20 OS4K -18 / - 2 Partial capture
08-26 12:16 20m - / - CT3MD -10 / - 3 Partial capture
08-26 12:12 20m -11 / - JF2IUC - / -12 2 ✓ Closing fragment
08-26 11:56 20m - / - HB9COF +5 / - 2 Partial capture
08-26 11:48 20m - / - DK3NU -14 / - 2 Partial capture

Recent FT8 messages decoded at SO8OO

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

80m 
UTC    dB Audio  Message
024100  -5 1913  AJ9C PI4DX -04 (x5)
024730  +5 1263  AJ9C LZ2JE -16 (x5)
235130  +1  457  AJ9C DH1KJ JN48 (x2)
001945 -24 1090  YO4ATW AJ9C EN70 (x2)
20m 
UTC    dB Audio  Message
122630 -15 2503  AJ9C M7PHE IO93 (x2)
122930 +10 2053  AJ9C DL3RL JN59 (x8)
123630 +11 1744  AJ9C IU1CYA -13
123700 +15 2053  AJ9C DL3RL 73
123830  -4 2501  AJ9C M7PHE IO93 (x3)
10m 
UTC    dB Audio  Message
132515 -23 1700  AJ9C A61FJ RR73

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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