ON7DE — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Belgium Most frequent locator attributed to this token: JO20

Receiver-side FT8 activity involving ON7DE, decoded by SO8OO in southeastern Poland. 2,968 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, 10m, across 77 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-09-21.

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 2,968 FT8 messages attributed to ON7DE as the transmitting token by decoded message structure across 77 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (41%), followed by 40 m (37%) and 10 m (20%). Most decodes (52%) fell within the six-hour window 16:00-22:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -15.2 dB.

Overview

2,968
Messages attributed
77
UTC dates decoded
482
Active 15-min windows
-15.2 dB
Estimated median S/N

Bands

80m · 31 60m · 1 40m · 1,107 20m · 1,230 10m · 599
First attributed message: 2026-06-07
Last attributed message: 2026-09-21 09:00 UTC

Observed FT8 message patterns

Attributed sample
2,968 messages
Active dates
77 UTC dates
Estimated median S/N
-15.2 dB
Estimated 10th-90th percentile
-23 to -2.4 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 1,471, moderate (-15 to -9 dB) 793, strong (≥ -8 dB) 704.

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 ON7DE 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 ON7DE

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
JO20 · 2,207 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,194 km (approx.)
Last such locator decoded
2026-09-21 08:59 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 UTCBandON7DE S/NCounterpartCounterpart S/NMsgsCapture
09-21 08:59 40m -19 / - F4NEY - / -3 2 Partial capture
09-21 08:56 40m -18 / - M7NRS - / -15 3 Partial capture
09-21 08:39 40m -15 / - DF3DT - / +5 4 ✓ Closing fragment
09-21 08:29 40m -15 / - DG3YEV - / +7 4 ✓ Closing fragment
09-20 20:51 40m -5 / -14 ON6DL -3 / -16 14 ✓ Full exchange observed
09-20 20:45 40m -2 / - M0NXD - / - 12 Partial capture
09-20 20:40 40m -9 / - EA4DXP - / -11 9 ✓ Closing fragment
09-20 20:38 40m -2 / -3 HB9ELE +10 / +7 4 ✓ Full exchange observed
09-20 20:34 40m - / -17 PH82LIB -10 / - 3 Partial capture
09-20 20:33 40m -4 / - RC6AO/P - / -24 9 Partial capture
09-20 20:16 40m -4 / - E79KO - / - 12 Partial capture
09-20 20:13 40m -7 / - G4PTP - / -12 3 Partial capture
09-20 20:10 40m -3 / - UB7K - / - 6 Partial capture
09-18 09:20 40m -17 / - MW9VVX - / -10 3 ✓ Closing fragment
09-18 09:13 40m -21 / - EC5CIA - / - 6 Partial capture
09-18 09:11 40m -19 / - SQ9GAI - / - 4 Partial capture
09-18 09:05 40m -19 / +2 OK3MB -14 / - 3 ✓ Closing observed
09-18 09:01 40m -21 / +3 OK3BR -8 / - 3 ✓ Closing observed
09-18 08:11 40m -17 / - ON8ON - / - 10 Partial capture
09-18 08:01 40m -13 / - SO100PKP - / - 6 Partial capture
09-17 11:39 40m -23 / - ON8WR - / -13 2 ✓ Closing fragment
09-17 11:16 40m -22 / - S52KM - / - 3 Partial capture
09-17 10:40 40m -19 / - SP6TPP - / - 5 Partial capture
09-17 08:27 40m -14 / - ON8WR - / - 5 Partial capture
09-17 07:10 40m -14 / - GW6OHV - / - 4 Partial capture
09-17 06:56 40m -15 / 0 SP8WB -3 / -9 7 ✓ Full exchange observed
09-16 21:16 40m 0 / - HL5BMX - / - 4 Partial capture
09-16 21:12 40m +2 / - BG2GWN - / -12 2 Partial capture
09-16 20:55 40m -8 / - HB9ELE - / - 9 Partial capture
09-16 20:53 40m -11 / -19 HB9EXN -17 / -19 5 ✓ Full exchange observed
09-16 20:35 40m -13 / - R6HV/P - / -9 2 Partial capture
09-16 20:25 40m -17 / - ON5LC - / - 8 Partial capture
09-16 08:59 40m - / - OK2JKO -4 / - 2 Partial capture
09-16 08:31 40m -18 / - R6HV/P - / -13 2 Partial capture
09-16 08:12 40m -20 / - DF7NO - / - 9 Partial capture
09-16 07:40 40m -13 / - EA7IAO - / - 2 Partial capture
09-16 07:32 40m -15 / -9 OT7K +6 / +5 5 ✓ Full exchange observed
09-15 21:10 40m -5 / -9 TA2BMV -8 / -4 12 ✓ Full exchange observed
09-15 21:08 40m 0 / - VJ6X - / - 3 Partial capture
09-15 21:06 40m -2 / - EA6AJT - / -9 3 ✓ Closing fragment
09-15 21:02 40m -6 / - S51WX - / -9 5 Partial capture
09-15 20:59 40m -10 / - CX6TU - / - 5 Partial capture
09-15 20:57 40m -9 / -13 EA1PZV -20 / +2 5 ✓ Full exchange observed
09-15 20:54 40m - / -6 EA5JLN -12 / - 2 ✓ Closing fragment
09-15 20:52 40m -4 / - CX6TU - / -24 4 Partial capture
09-15 20:50 40m -6 / - EA5JLN - / - 2 Partial capture
09-15 20:48 40m -1 / - IU8WQW - / - 2 Partial capture
09-15 20:42 40m -4 / - M6DPS - / - 6 Partial capture
09-15 20:33 40m -7 / - MM7WQD - / -6 9 Partial capture
09-15 20:29 40m -5 / +6 II6IGTO -6 / -3 3 Partial capture

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
205545  -7  944  ON7DE ON6DL RR73
205600  -2 1785  ON6DL ON7DE 73
082945 -13 1786  DG3YEV ON7DE R+07 (x4)
083915 -17 1786  DF3DT ON7DE JO20 (x4)
085630 -19 1786  M7NRS ON7DE JO20 (x3)
085915 -19 1786  F4NEY ON7DE JO20 (x2)
80m 
UTC    dB Audio  Message
045315 -15 1752  WE0D ON7DE JO20 (x3)
045445 -18 1753  EA5JLB ON7DE R-16 (x2)
051830  +6  468  ON7DE II3DRC +03 (x2)
054500  -6 1198  ON7DE ON6PL -15 (x2)
061845  -4 2823  ON7DE F4FQY -08
063300 -14 1089  ON7DE S53X JN65 (x4)
070745 -24 1751  DA6PP ON7DE R-03
20m 
UTC    dB Audio  Message
200545  +5 1818  PY1USK ON7DE JO20 (x2)
200845  +0 1819  CU2JX ON7DE JO20 (x8)
201245  +4 1818  9A6NTK ON7DE JO20 (x5)
60m 
UTC    dB Audio  Message
064330 -10  984  ON7DE G3SED -11 (x2)
055245  +9 1389  ON7DE SP8AWL -10 (x2)
055345  -6 1531  ON7DE SP0DF JO73
062930 -21 1780  ON7DE DL1YEG +16 (x2)
061100 -16 1496  ON7DE F5PAC JN37 (x4)
055415 -22 1780  LB6KC ON7DE JO20
064545 -20 1495  ON7DE I/DH3YAK -06
065330  +0 2543  ON7DE DK2MAX -07 (x2)
10m 
UTC    dB Audio  Message
131045 -23 1828  UA9AX ON7DE RR73
131315 -23 1827  ON3MOH/P ON7DE JO20 (x5)
131630 -19 1828  EB3FTP ON7DE JO20 (x6)
121330  -2 1052  ON7DE IW8XLD -17 (x2)
132315  -7 1804  ON7DE IK3/UY7LA -19

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.

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