ZF1EJ — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Cayman Islands Most frequent locator attributed to this token: EK99

Receiver-side FT8 activity involving ZF1EJ, decoded by SO8OO in southeastern Poland. 116 FT8 messages attributed to this token as transmitter, on 60m, across 2 UTC dates in the available aggregate history. Observed between 2026-09-28 and 2026-10-01.

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 116 FT8 messages attributed to ZF1EJ as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 60 m (100%). In this small sample, the estimated median decoder S/N was -17 dB; no usual signal pattern is inferred.

Overview

116
Messages attributed
2
UTC dates decoded
9
Active 15-min windows
-17 dB
Estimated median S/N

Bands

60m · 116
First attributed message: 2026-09-28
Last attributed message: 2026-10-01 05:40 UTC

Observed FT8 message patterns

Attributed sample
116 messages
Active dates
2 UTC dates
Estimated median S/N
-17 dB
Estimated 10th-90th percentile
-22 to -13 dB
Recurring-pattern threshold
Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 75, moderate (-15 to -9 dB) 41, strong (≥ -8 dB) 0.

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 ZF1EJ 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 ZF1EJ

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
EK99 · 3 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
9,234 km (approx.)
Last such locator decoded
2026-09-28 23:48 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 UTCBandZF1EJ S/NCounterpartCounterpart S/NMsgsCapture
10-01 05:45 60m - / - IK2CHZ 0 / - 3 Partial capture
10-01 05:43 60m - / - OH6NEQ -9 / - 2 Partial capture
10-01 05:42 60m - / - LA9AJA -14 / - 3 Partial capture
10-01 05:41 60m - / -10 G0CUZ -5 / - 3 ✓ Closing fragment
10-01 05:41 60m - / - OH8LXT -20 / - 2 Partial capture
10-01 05:39 60m - / - LA9AJA -11 / - 2 Partial capture
10-01 05:39 60m - / - SP3PLD -17 / - 7 Partial capture
10-01 05:37 60m - / - OH6JD -4 / - 3 Partial capture
10-01 05:37 60m - / -13 SP2RXH +8 / - 4 ✓ Closing fragment
10-01 05:36 60m -19 / -5 G3SHK -2 / - 5 ✓ Closing observed
10-01 05:35 60m - / - IK2SYK -16 / - 9 Partial capture
10-01 05:35 60m - / - OH7UE -10 / - 12 Partial capture
10-01 05:34 60m - / - EB5AFK -11 / - 2 Partial capture
10-01 05:34 60m -20 / -6 DL7FD +5 / - 7 ✓ Closing observed
10-01 05:33 60m - / - IK4CBO -8 / - 12 ✓ Closing fragment
10-01 05:33 60m - / - SP3FAR -9 / - 3 Partial capture
10-01 05:31 60m -19 / -4 DF1QR -2 / -4 7 ✓ Full exchange observed
10-01 05:31 60m - / -14 SV1EKI -3 / - 9 Partial capture
10-01 05:30 60m - / - DL6LG -23 / - 3 Partial capture
10-01 05:30 60m - / - DL6WAB/P -20 / - 2 Partial capture
10-01 05:29 60m -17 / - KD3CLB - / -3 2 ✓ Closing fragment
10-01 05:28 60m - / - EB5AFK -6 / - 4 Partial capture
10-01 05:28 60m -18 / -4 DM1SV -10 / -10 9 ✓ Full exchange observed
10-01 05:27 60m - / - IK2SYK -16 / - 7 Partial capture
10-01 05:26 60m -16 / - F4LOC - / -13 2 ✓ Closing fragment
10-01 05:26 60m -16 / - LB1UK -21 / -19 3 Partial capture
10-01 05:26 60m -16 / -8 SP7AH -7 / -23 7 ✓ Full exchange observed
10-01 05:25 60m - / - SV1BTK -9 / - 6 Partial capture
10-01 05:22 60m - / - DL2RPN -13 / - 8 Partial capture
10-01 05:22 60m - / - DF1QR +1 / - 4 Partial capture
10-01 05:21 60m - / - DL6WAB/P -24 / - 3 Partial capture
10-01 05:21 60m - / - DL7UKM -7 / - 10 Partial capture
10-01 05:21 60m - / - OH6NEQ -22 / - 4 Partial capture
10-01 05:21 60m - / - DL3OI -2 / - 17 Partial capture
10-01 05:21 60m - / - EU4T -11 / - 7 Partial capture
10-01 05:20 60m - / -4 IK5VQK +3 / - 5 ✓ Closing fragment
10-01 05:20 60m -18 / -5 PA1MVL -2 / -3 10 ✓ Full exchange observed
10-01 05:19 60m - / - HA5CPN -9 / - 12 Partial capture
10-01 05:19 60m -18 / -2 M0PNN -9 / -3 9 ✓ Full exchange observed
10-01 05:18 60m -17 / -6 DK1FW +4 / +4 7 ✓ Full exchange observed
10-01 05:18 60m - / - DM1SV -7 / - 2 Partial capture
10-01 05:17 60m -21 / - 9Y4M - / -4 2 ✓ Closing fragment
10-01 05:17 60m - / - F5GN -11 / - 7 Partial capture
10-01 05:17 60m -18 / -12 IK5MEN +1 / - 13 ✓ Closing observed
10-01 05:17 60m - / -14 SP7AH -3 / - 5 Partial capture
10-01 05:16 60m - / - LB1UK -16 / - 6 Partial capture
10-01 05:16 60m -19 / -5 DG1KFR -5 / -9 29 ✓ Full exchange observed
10-01 05:16 60m - / - HB9CEV -9 / - 3 Partial capture
10-01 05:15 60m - / - DL7UKM -8 / - 6 Partial capture
10-01 05:14 60m - / - OH6NEQ -8 / - 3 Partial capture

Recent FT8 messages decoded at SO8OO

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

60m 
UTC    dB Audio  Message
054200  +0  433  ZF1EJ G0CUZ R-10
054230 -18  951  ZF1EJ SP3PLD JO72
054230  -8 2732  ZF1EJ OH7UE KP52
054230 -13 1083  ZF1EJ LA9AJA JP53
054230  -6  432  ZF1EJ G0CUZ 73
054300 -12  951  ZF1EJ SP3PLD JO72
054300  -3 2732  ZF1EJ OH7UE KP52
054300 -10 2456  ZF1EJ OH6NEQ KP21
054300 -13 1083  ZF1EJ LA9AJA JP53
054330 -16 2299  ZF1EJ OH8LXT KP23
054330  -8 2456  ZF1EJ OH6NEQ KP21
054400 -16 1083  ZF1EJ LA9AJA JP53
054530  +1 2565  ZF1EJ IK2CHZ JN45 (x3)
160m 
UTC    dB Audio  Message
030045 -15 1084  ZF1EJ IU1VJP JO30

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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