KA3FMO — 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: United States Most frequent locator attributed to this token: FN21

Receiver-side FT8 activity involving KA3FMO, decoded by SO8OO in southeastern Poland. 108 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 13 UTC dates in the available aggregate history. Observed between 2026-06-09 and 2026-09-28.

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 108 FT8 messages attributed to KA3FMO as the transmitting token by decoded message structure across 13 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (77%), followed by 40 m (13%) and 80 m (10%). Most decodes (99%) fell within the six-hour window 23:00-05:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's weak S/N range (74%); the estimated median was -18 dB.

Overview

108
Messages attributed
13
UTC dates decoded
31
Active 15-min windows
-18 dB
Estimated median S/N

Bands

80m · 11 40m · 14 20m · 83
First attributed message: 2026-06-09
Last attributed message: 2026-09-28 00:53 UTC

Observed FT8 message patterns

Attributed sample
108 messages
Active dates
13 UTC dates
Estimated median S/N
-18 dB
Estimated 10th-90th percentile
-24 to -13 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 80, moderate (-15 to -9 dB) 28, 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 KA3FMO 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 KA3FMO

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
FN21 · 75 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
7,033 km (approx.)
Last such locator decoded
2026-09-28 00:53 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 UTCBandKA3FMO S/NCounterpartCounterpart S/NMsgsCapture
10-22 23:05 40m - / -8 CT2IOK -2 / - 2 Partial capture
10-19 00:36 40m - / -14 DL5WP -12 / - 2 ✓ Closing fragment
10-19 00:20 40m - / -6 F1PBZ +3 / - 3 ✓ Closing fragment
10-18 23:49 40m - / - DK4ET -8 / - 2 Partial capture
10-18 23:44 40m - / -18 DL1MEV -3 / - 3 ✓ Closing fragment
10-18 23:41 40m - / - KX7C -9 / - 2 ✓ Closing fragment
10-15 02:16 40m - / -5 ON8WR -12 / - 3 ✓ Closing fragment
10-15 01:02 40m - / - M9XPN -7 / - 4 Partial capture
10-15 00:44 40m - / -15 F4HKP -3 / - 9 ✓ Closing fragment
10-01 00:02 40m - / - M0IOY -1 / - 3 Partial capture
09-29 01:49 40m - / - F5OZK -5 / - 3 Partial capture
09-29 01:49 40m - / - ON8WR -18 / - 2 Partial capture
09-29 01:37 40m - / - F5OZK -2 / - 3 Partial capture
09-29 01:31 40m - / - F5OZK 0 / - 4 Partial capture
09-29 01:05 40m - / - ON8WR -12 / - 2 Partial capture
09-29 00:55 40m - / - F5OZK -4 / - 6 Partial capture
09-29 00:45 40m - / - ON8WR -15 / - 2 Partial capture
09-29 00:36 40m - / -16 RT3K -16 / - 5 Partial capture
09-26 00:12 40m - / - MW0KST -19 / - 3 Partial capture
09-26 00:04 40m - / -13 MW0KST -17 / - 4 ✓ Closing fragment
09-26 00:04 40m - / -17 UR1CCT -5 / - 3 ✓ Closing fragment
09-25 22:54 40m - / - DG6VC -6 / - 13 Partial capture
09-25 22:45 40m - / - MW1CFA -16 / - 2 ✓ Closing fragment
09-25 22:39 40m - / -10 IK2ZJR +4 / - 6 ✓ Closing fragment
09-25 22:23 40m - / -17 PB2A -14 / - 2 Partial capture
09-25 22:06 40m - / -16 EA2FGV -14 / - 4 Partial capture
09-25 21:55 40m - / -21 M0JBM -9 / - 2 ✓ Closing fragment
09-25 21:15 40m - / - IU1QYF -13 / - 12 Partial capture
09-25 21:04 40m - / -20 IK3ERN -4 / - 2 ✓ Closing fragment
09-25 20:59 40m - / -20 G0GFC -8 / - 5 Partial capture
09-25 20:58 40m - / - PD2V -12 / - 2 Partial capture
09-25 00:20 40m - / -16 MW7RHR -8 / - 2 Partial capture
09-25 00:04 40m - / - MW7RHR -3 / - 3 Partial capture
09-24 22:52 40m - / - IK2EST -15 / - 2 Partial capture
09-24 22:37 40m - / -16 EA7BD -12 / - 2 ✓ Closing fragment
09-24 22:33 40m - / -10 G5IAN -10 / - 2 ✓ Closing fragment
09-24 22:32 40m - / - IU1WYC -14 / - 2 Partial capture
09-24 22:30 40m - / - ON8WR -16 / - 2 Partial capture
09-24 22:16 40m - / - G0GFC -6 / - 2 Partial capture
09-24 22:16 40m - / - IU1WYC -7 / - 3 Partial capture
09-24 22:12 40m - / -21 IZ4AFM +13 / - 3 ✓ Closing fragment
09-24 22:08 40m - / -8 F1PBZ +2 / - 2 ✓ Closing fragment
09-19 05:00 40m - / -13 DK4MW -6 / - 4 ✓ Closing fragment
09-19 04:45 40m - / -12 PD0PMF -10 / - 3 ✓ Closing fragment
09-19 04:35 40m - / -6 DD1OO -4 / - 2 ✓ Closing fragment
09-19 04:20 40m - / -18 GM6URC -20 / - 2 Partial capture
09-19 04:16 40m - / -16 GM6URC -19 / - 2 Partial capture
09-19 03:54 40m - / -16 HK3W -12 / - 3 ✓ Closing fragment
09-19 03:33 40m - / -1 GM6URC -13 / - 2 Partial capture
09-19 03:04 40m - / -16 GM6URC -15 / - 7 Partial capture

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
021730  -8 2166  KA3FMO ON8WR 73
234130  -6 2500  KA3FMO KX7C R+15 (x2)
234430  -7 2740  KA3FMO DL1MEV JN58 (x3)
234900 -10  982  KA3FMO DK4ET JO52 (x2)
002030  +2 2737  KA3FMO F1PBZ -06 (x3)
003630 -12  837  KA3FMO DL5WP -14 (x2)
230530  -3 2939  KA3FMO CT2IOK R-08 (x2)
20m 
UTC    dB Audio  Message
235830 -18 1870  KA3FMO SV0LS KN00 (x5)
003730  -9 2710  KA3FMO CE3RKW RR73
221115 -18 2047  CQ KA3FMO FN21
052430 -23 2141  KA3FMO ZL1RPC RF73 (x2)
004800  -5 2134  KA3FMO R6OP KN88 (x2)
202900 -23 1317  KA3FMO EB5AKG IM99
202930 -13 2044  KA3FMO F4MUF JN05
202930 -12 1317  KA3FMO EB5AKG IM99
203100 -13 2044  KA3FMO F4MUF JN05
80m 
UTC    dB Audio  Message
030345 -23 2001  CQ KA3FMO FN21
035730 -13 2143  KA3FMO OK8DCC JN79 (x4)
041430 -14 2002  KA3FMO G5LP IO92
041530 -23 1940  KA3FMO IK5CHL JN53
041530 -16 2002  KA3FMO G5LP 73
041600 -11 1939  KA3FMO IK5CHL R-20 (x3)
043130 -16 2073  KA3FMO DG1KPC JO30 (x4)

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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