EA3RKM — 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: Spain Most frequent locator attributed to this token: JN11

Receiver-side FT8 activity involving EA3RKM, decoded by SO8OO in southeastern Poland. 74 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 23 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-11-02.

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 74 FT8 messages attributed to EA3RKM as the transmitting token by decoded message structure across 23 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (80%), followed by 20 m (20%). Several six-hour UTC windows tied for the largest share (86%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -9 dB.

Overview

74
Messages attributed
23
UTC dates decoded
33
Active 15-min windows
-9 dB
Estimated median S/N

Bands

40m · 59 20m · 15
First attributed message: 2026-06-08
Last attributed message: 2026-11-02 20:32 UTC

Observed FT8 message patterns

Attributed sample
74 messages
Active dates
23 UTC dates
Estimated median S/N
-9 dB
Estimated 10th-90th percentile
-17 to +3 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 12, moderate (-15 to -9 dB) 25, strong (≥ -8 dB) 37.

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 EA3RKM 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 EA3RKM

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
JN11 · 34 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,727 km (approx.)
Last such locator decoded
2026-10-05 17:38 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 UTCBandEA3RKM S/NCounterpartCounterpart S/NMsgsCapture
10-20 18:35 40m -6 / -15 DF0TZ -2 / -15 4 ✓ Full exchange observed
10-10 15:01 40m - / - IU8RFW -18 / - 4 Partial capture
10-05 17:37 40m -7 / - SQ5ANT - / -5 4 ✓ Closing fragment
09-20 20:27 40m -10 / - PH82LIB - / -25 2 Partial capture
09-12 19:30 40m -7 / +10 EH3ST -4 / -5 3 ✓ Full exchange observed
09-12 08:31 40m - / - IK2ZJR -6 / - 10 Partial capture
09-11 20:39 40m +3 / - II9IAGM - / -17 5 Partial capture
09-08 07:44 40m - / - F5MXH -12 / - 2 Partial capture
09-05 21:51 40m -14 / - SQ100PKP - / -13 2 Partial capture
09-03 21:05 40m - / - RN6HK +8 / - 2 Partial capture
09-03 21:04 40m -13 / -2 EG7CQ -14 / - 3 ✓ Closing observed
09-01 19:47 40m - / - DL3MIB +14 / - 7 Partial capture
09-01 17:48 40m -17 / - <...> - / -1 2 Partial capture
08-29 22:53 40m -2 / -15 K2ZJ +1 / - 5 ✓ Closing observed
08-29 22:37 40m -5 / -6 LZ6C -6 / -22 12 ✓ Full exchange observed
08-26 23:18 40m -14 / - AA1SU - / -15 3 Partial capture
08-24 20:44 40m - / -8 UW5IM +13 / - 24 Partial capture
08-18 19:48 40m - / -16 SN1A -16 / - 3 ✓ Closing fragment
08-13 22:52 20m - / -16 VE3ARF -5 / - 2 ✓ Closing fragment
08-13 21:52 20m - / -10 NV1U -16 / - 2 ✓ Closing fragment
08-10 22:08 20m - / -15 YO4NF -4 / - 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
145330  -1 1671  EA3RKM II4NTTI R+08
150100 -21 1438  EA3RKM IU8RFW JN70 (x4)
205830  -5 1695  EA3RKM ON1BH -01
183515  -8 2722  DF0TZ EA3RKM -15
183530  -5 1190  EA3RKM DF0TZ R-15
183545  -4 2722  DF0TZ EA3RKM RR73
183600  +1 1190  EA3RKM DF0TZ RR73
194730 -15 1535  G3RCV EA3RKM -16
203245 -22 2342  YO1BRANCUSI EA3RKM -15
172230  +2 2562  EA3RKM PE40EUDXF R+05
172300  +4 2562  EA3RKM RR73; BG4UCZ <...> -20
084330 -11  800  EA3RKM PF40EUDXF -11
20m 
UTC    dB Audio  Message
220845  -3 1950  EA3RKM YO4NF -15 (x2)
211930 -17  267  EA3RKM K2TQC RR73
213630 -12  945  EA3RKM CN8NS -15
213700 -14  945  EA3RKM RR73; M0VCP <...> -14
215230 -18 1331  EA3RKM NV1U -10 (x2)
225245  -7  444  EA3RKM VE3ARF -16 (x2)

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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