YE5TMJ — 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: Indonesia

Receiver-side FT8 activity involving YE5TMJ, decoded by SO8OO in southeastern Poland. 5 FT8 messages attributed to this token as transmitter, on 20m, across 2 UTC dates in the available aggregate history. Observed between 2026-08-09 and 2026-08-10.

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 5 FT8 messages attributed to YE5TMJ as the transmitting token by decoded message structure across 2 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 -24 dB; no usual signal pattern is inferred.

Overview

5
Messages attributed
2
UTC dates decoded
2
Active 15-min windows
-24 dB
Estimated median S/N

Bands

First attributed message: 2026-08-09
Last attributed message: 2026-08-10 16:54 UTC

Observed FT8 message patterns

Attributed sample
5 messages
Active dates
2 UTC dates
Estimated median S/N
-24 dB
S/N percentile sample
Too small
Recurring-pattern threshold
Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 5, moderate (-15 to -9 dB) 0, 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).

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 UTCBandYE5TMJ S/NCounterpartCounterpart S/NMsgsCapture
09-27 14:07 40m - / - R7ZY -10 / - 2 Partial capture
09-27 13:52 40m - / - RN1CW -9 / - 6 Partial capture
09-27 13:50 40m - / -18 UA3QQG -23 / - 2 Partial capture
09-27 13:43 40m - / -10 UA3GDJ -18 / - 3 ✓ Closing fragment
08-15 14:18 20m - / -12 R3KF -14 / - 3 ✓ Closing fragment
08-10 16:57 20m - / -13 G5TV -21 / - 4 ✓ Closing fragment
08-10 16:56 20m - / -18 C31KC -21 / - 2 ✓ Closing fragment
08-10 16:53 20m -23 / - SV1EGE - / -15 3 Partial capture
08-10 16:51 20m - / - G5TV -21 / - 4 Partial capture
08-10 16:48 20m - / - F4LQJ -20 / - 2 Partial capture
08-10 16:29 20m - / -17 IU3WNP -6 / - 6 ✓ Closing fragment
08-10 16:22 20m - / - PD2JAM -19 / - 2 Partial capture
08-10 15:47 20m - / - G5NGL -18 / - 2 Partial capture
08-10 15:41 20m - / -10 PA2JCB -21 / - 3 ✓ Closing fragment
08-10 15:39 20m - / - DK7UY -18 / - 2 Partial capture
08-10 15:29 20m - / - HB9EKH -12 / - 2 Partial capture
08-10 14:42 20m - / - IV3DSG -16 / - 2 Partial capture
08-10 14:40 20m - / - DK3HV -19 / - 3 Partial capture
08-09 15:21 20m - / -22 RA3ZH -4 / - 2 ✓ Closing fragment
08-09 15:19 20m - / - OE7CST -12 / - 3 Partial capture
08-09 15:16 20m - / - OE9KFV -10 / - 4 Partial capture
08-09 15:13 20m -24 / - BD6RAV - / -12 2 ✓ Closing fragment
08-09 15:13 20m - / - F6APU -24 / - 2 Partial capture
08-09 15:12 20m - / - OE9KFV -10 / - 2 Partial capture
08-09 15:09 20m - / - 9A4ZM -8 / - 2 Partial capture
08-09 15:08 20m - / -7 DJ9WH +14 / - 2 ✓ Closing fragment
08-09 15:07 20m - / - IZ3EAW -12 / - 2 Partial capture
08-09 15:04 20m - / - IZ3EAW -8 / - 2 Partial capture
08-09 15:01 20m - / - IZ3EAW -10 / - 2 Partial capture

Recent FT8 messages decoded at SO8OO

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

40m
UTC    dB Audio  Message
134330 -18 1756  YE5TMJ UA3GDJ KO92 (x3)
135030 -24 1787  YE5TMJ UA3QQG -18 (x2)
135200 -14  921  YE5TMJ RN1CW KO59 (x6)
140700  -9 2489  YE5TMJ R7ZY KN98 (x2)
20m
UTC    dB Audio  Message
165230 -21 1672  YE5TMJ G5TV IO93
165315 -24 1875  SV1EGE YE5TMJ -15 (x2)
165400 -23 1672  YE5TMJ G5TV IO93
165445 -23 1875  SV1EGE YE5TMJ -15
165600 -23 1455  YE5TMJ C31KC R-18 (x2)
165700 -21 1672  YE5TMJ G5TV IO93 (x4)
170200 -11  624  YE5TMJ EA1FUB IN53
141815 -15 1889  YE5TMJ R3KF -12 (x3)

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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