EP5TJS — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Iran Most frequent locator attributed to this token: LM96

Receiver-side FT8 activity involving EP5TJS, decoded by SO8OO in southeastern Poland. 47 FT8 messages attributed to this token as transmitter, on 20m, across 1 UTC dates in the available aggregate history. Last observed 2026-07-23.

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 47 FT8 messages attributed to EP5TJS as the transmitting token by decoded message structure across 1 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (100%). In this small sample, the estimated median decoder S/N was -13 dB; no usual signal pattern is inferred.

Overview

47
Messages attributed
1
UTC dates decoded
4
Active 15-min windows
-13 dB
Estimated median S/N

Bands

20m · 47
First attributed message: 2026-07-23
Last attributed message: 2026-07-23 22:04 UTC

Observed FT8 message patterns

Attributed sample
47 messages
Active dates
1 UTC dates
Estimated median S/N
-13 dB
Estimated 10th-90th percentile
-16 to -8 dB
Recurring-pattern threshold
Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 9, moderate (-15 to -9 dB) 33, strong (≥ -8 dB) 5.

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 EP5TJS in decoded directed-looking exchanges:

Most frequent locator attributed to EP5TJS

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
LM96
SO8OO receiver locator
KN09VW
Locator-centre separation
3,319 km (approx.)
Last such locator decoded
2026-07-23 21:28 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 UTCBandEP5TJS S/NCounterpartCounterpart S/NMsgsCapture
07-27 03:31 20m - / -14 ZL4TT -15 / - 3 Partial capture
07-27 03:27 20m - / -5 KZ5DX -10 / - 4 Partial capture
07-27 03:20 20m - / -7 N1LYP -4 / - 4 ✓ Closing fragment
07-27 03:12 20m - / +1 NG4C -11 / - 3 ✓ Closing fragment
07-27 02:51 20m - / - IK3ACI -12 / - 2 Partial capture
07-27 02:47 20m - / -6 KI5ZYU -17 / - 4 Partial capture
07-27 02:47 20m - / -3 WD8KND -11 / - 3 ✓ Closing fragment
07-27 02:46 20m - / - IK3ACI -11 / - 3 Partial capture
07-27 02:43 20m - / -1 KU1CW -5 / - 5 ✓ Closing fragment
07-27 02:33 20m - / - IK2TPX -8 / - 7 Partial capture
07-27 02:08 20m - / -8 TI5RR -11 / - 5 Partial capture
07-27 01:52 20m - / - UA8Q -8 / - 3 Partial capture
07-27 01:50 20m - / - KK4CDK -15 / - 9 Partial capture
07-27 01:37 20m - / - WC2W -12 / - 3 Partial capture
07-27 01:33 20m - / -7 KT1D -2 / - 2 ✓ Closing fragment
07-27 01:28 20m - / - KT1D -12 / - 3 Partial capture
07-27 01:08 20m - / - NE5TX -15 / - 2 Partial capture
07-27 00:54 20m - / - W3ML -21 / - 2 Partial capture
07-27 00:39 20m - / -10 PR7AD -1 / - 4 Partial capture
07-27 00:27 20m - / - AI5B -8 / - 8 Partial capture
07-27 00:26 20m - / -12 PT7YV -2 / - 11 ✓ Closing fragment
07-27 00:23 20m - / - AI5B -1 / - 3 Partial capture
07-27 00:22 20m - / - PT7YV -4 / - 4 Partial capture
07-27 00:21 20m - / - PT7ZT -16 / - 2 Partial capture
07-27 00:02 20m - / - R7DX -6 / - 2 Partial capture
07-27 00:00 20m - / -10 N4MC -10 / - 3 ✓ Closing fragment
07-25 23:12 80m - / - R3SE -5 / - 3 Partial capture
07-25 00:44 20m - / -5 VA3DIF -16 / - 6 Partial capture
07-24 23:34 20m - / -7 N2MWX -13 / - 4 ✓ Closing fragment
07-24 23:29 20m - / - K5ATN -10 / - 4 Partial capture
07-24 23:29 20m - / - PE9JAN +1 / - 3 Partial capture
07-24 23:18 20m - / - WV2I -20 / - 7 Partial capture
07-24 23:16 20m - / - TI2SD -21 / - 3 Partial capture
07-24 23:08 20m - / -11 IK5XCT -4 / - 3 Partial capture
07-24 21:09 20m - / - M8KUG -20 / - 9 Partial capture
07-23 22:03 20m -10 / - KK4DUP - / -4 3 Partial capture
07-23 22:02 20m -12 / - KE2CJL - / -10 2 ✓ Closing fragment
07-23 22:01 20m -11 / - GM0DEQ - / -6 3 Partial capture
07-23 21:59 20m -15 / - EW8DU - / -19 2 Partial capture
07-23 21:57 20m -16 / - N3CZ - / -1 2 ✓ Closing fragment
07-23 21:56 20m - / - CU7MD -14 / - 3 Partial capture
07-23 21:47 20m -16 / - KE2CJL - / -15 3 ✓ Closing fragment
07-23 21:46 20m - / - EA5JKT -8 / - 39 Partial capture
07-23 21:45 20m -16 / - N8GK - / -12 2 ✓ Closing fragment
07-23 21:43 20m -14 / - KD2CDV - / 0 2 ✓ Closing fragment
07-23 21:42 20m -14 / - W4GAF - / -4 2 ✓ Closing fragment
07-23 21:41 20m - / - LU6FOV -17 / - 50 Partial capture
07-23 21:41 20m -13 / - VA3EPM - / 0 3 Partial capture
07-23 21:39 20m -14 / - VE2FON - / -12 2 ✓ Closing fragment
07-23 21:36 20m -13 / - SV1HFE - / +1 3 Partial capture

Recent FT8 messages decoded at SO8OO

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

20m 
UTC    dB Audio  Message
031315 -13 1137  EP5TJS NG4C 73
031645 -10  557  EP5TJS K4YJ 73
031915 -10  345  EP5TJS IK3ACI JN55
032045  -5  465  EP5TJS N1LYP FN42 (x4)
032745 -13 1844  EP5TJS KZ5DX -05 (x4)
033145 -15 2455  EP5TJS ZL4TT RE54 (x3)
034100 -11  557  EP5TJS WD2P FN13
80m 
UTC    dB Audio  Message
231215  -7 1525  EP5TJS R3SE KO94 (x3)
40m 
UTC    dB Audio  Message
211615 -11 2445  EP5TJS SP1LON JO73

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