ON5MA — 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: Belgium Most frequent locator attributed to this token: JO10

Receiver-side FT8 activity involving ON5MA, decoded by SO8OO in southeastern Poland. 90 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 9 UTC dates in the available aggregate history. Observed between 2026-06-18 and 2026-10-29.

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 90 FT8 messages attributed to ON5MA as the transmitting token by decoded message structure across 9 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (88%), followed by 80 m (8%) and 20 m (4%). Several six-hour UTC windows tied for the largest share (63%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's moderate S/N range (70%); the estimated median was -11 dB.

Overview

90
Messages attributed
9
UTC dates decoded
19
Active 15-min windows
-11 dB
Estimated median S/N

Bands

80m · 7 40m · 79 20m · 4
First attributed message: 2026-06-18
Last attributed message: 2026-10-29 20:16 UTC

Observed FT8 message patterns

Attributed sample
90 messages
Active dates
9 UTC dates
Estimated median S/N
-11 dB
Estimated 10th-90th percentile
-17 to -6 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 11, moderate (-15 to -9 dB) 63, strong (≥ -8 dB) 16.

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 ON5MA 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 ON5MA

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
JO10 · 60 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,335 km (approx.)
Last such locator decoded
2026-10-29 20:16 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 UTCBandON5MA S/NCounterpartCounterpart S/NMsgsCapture
10-29 20:15 40m -11 / - TN8GD - / - 2 Partial capture
10-29 20:12 40m -4 / - ON7AMI - / - 2 Partial capture
10-29 07:43 40m - / - F8MRQ -11 / - 3 Partial capture
10-29 07:40 40m -14 / - ON2VHF/P - / -6 2 Partial capture
10-09 19:32 40m -9 / - ON3CCM - / - 3 Partial capture
10-09 19:26 40m -17 / - LY4Q -24 / - 3 ✓ Closing observed
09-11 06:50 40m -12 / - F1LPT - / - 2 Partial capture
09-11 06:34 40m -11 / - UA9JTJ/4 - / - 7 Partial capture
09-11 06:11 40m -11 / - UA9JTJ/4 - / - 12 Partial capture
09-11 06:08 40m -10 / -3 GJ0KYZ -15 / -6 5 ✓ Full exchange observed
09-11 06:08 40m -10 / -9 HG8LXL -7 / -6 6 ✓ Full exchange observed
09-11 06:06 40m -10 / - EA3HMM - / -13 2 Partial capture
09-11 06:06 40m -10 / -12 DL3MIB +6 / -4 7 ✓ Full exchange observed
09-11 06:05 40m -11 / - KT4ZG - / -12 2 ✓ Closing fragment
09-11 06:03 40m -12 / -1 F5RRS +5 / 0 6 ✓ Full exchange observed
09-11 06:01 40m -12 / - KG6PH - / -21 4 ✓ Closing fragment
09-11 05:59 40m -10 / - ON4STA - / - 2 Partial capture
09-11 05:57 40m -11 / - PV8AJ - / -10 3 ✓ Closing fragment
09-11 05:43 40m -17 / - UA9JTJ/4 - / - 3 Partial capture
09-11 05:40 40m -17 / - SV8/F6BLP - / - 2 Partial capture
09-01 21:10 80m -18 / -19 9A3TGY +4 / - 21 Partial capture
08-29 19:41 40m -10 / - OH3DJP - / - 8 Partial capture
08-29 19:37 40m -4 / -11 OE7LVI -2 / - 4 ✓ Closing observed
08-29 19:32 40m -6 / - UT3UQJ - / -13 2 ✓ Closing fragment
08-29 19:30 40m 0 / - SP6FME - / +1 2 ✓ Closing fragment
08-26 21:12 80m -10 / - RI1FJL - / - 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
192645 -24 2135  ON5MA LY4Q KO24
192730 -17 2134  LY4Q ON5MA RR73
192745 -24 2134  ON5MA LY4Q 73
193245  -3 2135  ON3CCM ON5MA JO10 (x3)
074045 -14 2230  ON2VHF/P ON5MA JO10 (x2)
074300 -10 2231  ON5MA F8MRQ JN17 (x3)
201215  -5 2230  ON7AMI ON5MA JO10 (x2)
201515 -13 2230  TN8GD ON5MA JO10 (x2)
80m 
UTC    dB Audio  Message
211245 -19 1927  9A3TGY ON5MA JO10
211300  +1 2843  ON5MA 9A3TGY -19
211315 -17 1927  9A3TGY ON5MA JO10
211330  +8 2842  ON5MA 9A3TGY -19 (x12)

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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