YB7SKM — 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 Most frequent locator attributed to this token: OI67

Receiver-side FT8 activity involving YB7SKM, decoded by SO8OO in southeastern Poland. 68 FT8 messages attributed to this token as transmitter, on 20m, across 10 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-08-27.

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 68 FT8 messages attributed to YB7SKM as the transmitting token by decoded message structure across 10 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (100%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's weak S/N range (78%); the estimated median was -17 dB.

Overview

68
Messages attributed
10
UTC dates decoded
19
Active 15-min windows
-17 dB
Estimated median S/N

Bands

20m · 68
First attributed message: 2026-06-07
Last attributed message: 2026-08-27 17:08 UTC

Observed FT8 message patterns

Attributed sample
68 messages
Active dates
10 UTC dates
Estimated median S/N
-17 dB
Estimated 10th-90th percentile
-22 to -14 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 53, moderate (-15 to -9 dB) 15, 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.

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with YB7SKM in decoded directed-looking exchanges:

Most frequent locator attributed to YB7SKM

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
OI67 · 47 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
10,307 km (approx.)
Last such locator decoded
2026-08-27 17:08 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 UTCBandYB7SKM S/NCounterpartCounterpart S/NMsgsCapture
10-23 15:30 40m - / - R2AL 0 / - 2 Partial capture
09-18 18:42 40m - / - IT9CCB -4 / - 2 Partial capture
09-18 18:16 40m - / - IT9CCB -3 / - 2 Partial capture
09-02 22:34 40m - / - SM3ULU -15 / - 3 Partial capture
09-02 22:27 40m - / - YT1DDL -4 / - 2 Partial capture
08-27 17:33 20m - / - F4EGM -3 / - 3 Partial capture
08-27 17:32 20m - / - F5OZK +12 / - 3 Partial capture
08-27 17:29 20m - / - F4EGM -7 / - 3 Partial capture
08-27 17:24 20m - / - F4EGM -6 / - 4 Partial capture
08-27 17:24 20m - / - IK2YJC -9 / - 5 Partial capture
08-27 17:21 20m - / - F8EBD -4 / - 4 Partial capture
08-27 17:14 20m - / -12 EA2AA -16 / - 2 Partial capture
08-27 17:14 20m - / - DL9TNT 0 / - 2 Partial capture
08-27 17:13 20m - / - PD9FLX +3 / - 7 Partial capture
08-27 17:12 20m - / - F4EGM -13 / - 2 Partial capture
08-27 17:08 20m - / - PD9FLX +3 / - 4 Partial capture
08-27 17:08 20m - / - F4EGM -7 / - 4 Partial capture
08-27 17:06 20m - / - IN3GHP +4 / - 2 Partial capture
08-27 17:05 20m - / - PD9FLX +3 / - 2 Partial capture
08-27 17:02 20m - / - F5RBV +2 / - 4 Partial capture
08-27 16:57 20m - / +3 DL8RWO +2 / - 6 ✓ Closing fragment
08-27 16:54 20m - / -16 EA4EJV -9 / - 4 Partial capture
08-27 16:54 20m - / - EA7JHC -8 / - 2 Partial capture
08-27 16:52 20m - / -19 PD1JVE -7 / - 3 Partial capture
08-27 16:51 20m - / - EA4ITM -11 / - 2 Partial capture
08-27 16:51 20m - / - PD9FLX +4 / - 8 Partial capture
08-27 16:50 20m - / - F5IXN +3 / - 3 Partial capture
08-27 16:49 20m - / - RZ6ALZ +2 / - 2 Partial capture
08-23 17:08 20m -17 / - IU8WPU - / -15 2 Partial capture
08-23 17:01 20m - / - F4BYA -8 / - 4 Partial capture
08-23 16:58 20m -17 / - EA2DR -9 / - 4 ✓ Closing observed
08-23 16:45 20m -16 / - PD9FLX - / -13 3 Partial capture
08-23 16:22 20m -18 / - UB4CLL - / -17 2 ✓ Closing fragment
08-23 16:18 20m - / - PD9FLX -7 / - 8 Partial capture
08-23 16:18 20m - / - R2BRU -15 / - 3 Partial capture
08-23 16:17 20m - / -16 F4MSA +3 / - 3 Partial capture
08-23 16:17 20m - / - IW5ALZ -9 / - 3 Partial capture
08-23 16:16 20m - / - F4BYA 0 / - 5 Partial capture
08-23 16:13 20m - / - F5LPL -1 / - 5 Partial capture
08-23 16:12 20m - / -20 EA2BTB -8 / - 2 Partial capture
08-23 16:02 20m - / - G0MSE -1 / - 2 Partial capture
08-23 16:01 20m - / - M0LHJ -9 / - 5 Partial capture
08-23 15:53 20m - / -10 RU3QR -13 / - 10 Partial capture
08-23 15:34 20m - / -9 RA6ARI -12 / - 2 ✓ Closing fragment
08-23 15:33 20m - / - IU4WSH -8 / - 2 Partial capture
08-23 15:33 20m - / - R7RCN -17 / - 2 Partial capture
08-22 17:41 20m - / - F4BYA -8 / - 2 Partial capture
08-22 17:30 20m - / - F4BYA -5 / - 10 Partial capture
08-22 17:22 20m - / - F4BYA +1 / - 7 Partial capture
08-22 17:18 20m - / - F4BYA -5 / - 4 Partial capture

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
161545  -7 1733  YB7SKM RD7LC RR73
221345 -24 1279  YB7SKM BI3UPU R-20
222530 -24 1672  YB7SKM R9OOH NO14
222700  -2 2010  YB7SKM YT1DDL KN04 (x2)
223330 -11 1885  YB7SKM F5PBG IN78
223430 -12 1837  YB7SKM SM3ULU JP81 (x3)
181600  -4 1635  YB7SKM IT9CCB JM77 (x4)
153030  +3 1452  YB7SKM R2AL KO85 (x2)
10m 
UTC    dB Audio  Message
130930 -21 1422  YB7SKM CS7AWL IM58
20m 
UTC    dB Audio  Message
172600  -6 1093  YB7SKM IK2YJC JN45
172600  -6 2508  YB7SKM F4EGM JN29
172700  +1 1623  YB7SKM M7NTJ JO01
172800  -9 2880  YB7SKM IW5ALZ JN53
172800 -12 1096  YB7SKM IK2YJC JN45
172930  -8 2507  YB7SKM F4EGM JN29 (x3)
173200 +14  781  YB7SKM F5OZK JN23 (x2)
173300  -2 2508  YB7SKM F4EGM JN29
173330 +11  781  YB7SKM F5OZK JN23
173330  +0 2508  YB7SKM F4EGM JN29 (x2)
173430 -16 1625  YB7SKM PD1SHE JO21

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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