ON3PJA — 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: JO21

Receiver-side FT8 activity involving ON3PJA, decoded by SO8OO in southeastern Poland. 41 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 5 UTC dates in the available aggregate history. Observed between 2026-08-28 and 2026-09-03.

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 41 FT8 messages attributed to ON3PJA as the transmitting token by decoded message structure across 5 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (61%), followed by 20 m (39%). Most decodes (76%) fell within the six-hour window 05:00-11:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (88%); the estimated median was -4 dB.

Overview

41
Messages attributed
5
UTC dates decoded
8
Active 15-min windows
-4 dB
Estimated median S/N

Bands

40m · 25 20m · 16
First attributed message: 2026-08-28
Last attributed message: 2026-09-03 05:28 UTC

Observed FT8 message patterns

Attributed sample
41 messages
Active dates
5 UTC dates
Estimated median S/N
-4 dB
Estimated 10th-90th percentile
-9 to +4 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 1, moderate (-15 to -9 dB) 4, strong (≥ -8 dB) 36.

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 ON3PJA 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 ON3PJA

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
JO21 · 15 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,192 km (approx.)
Last such locator decoded
2026-09-03 05:27 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 UTCBandON3PJA S/NCounterpartCounterpart S/NMsgsCapture
09-03 05:27 40m -8 / +2 F4AWT -3 / -8 5 ✓ Full exchange observed
09-03 05:26 40m -4 / - SP7TF - / -5 2 ✓ Closing fragment
09-03 05:22 40m -6 / - KC2NJ - / -17 3 ✓ Closing fragment
09-03 05:20 40m -4 / - YV6BXN - / - 2 Partial capture
09-03 05:16 40m -6 / - ZL1OGX - / - 3 Partial capture
09-01 18:54 40m 0 / 0 F8MRQ 0 / - 4 ✓ Full exchange observed
09-01 18:51 40m - / +8 9A4ZM +8 / - 4 ✓ Closing fragment
09-01 18:50 40m -4 / - DJ0MAB +5 / 0 2 Partial capture
09-01 18:47 40m -4 / - F8MRQ - / +10 3 ✓ Closing fragment
09-01 18:47 40m - / - F5PBG -3 / - 2 Partial capture
09-01 18:46 40m -2 / +3 DL1IP +6 / +6 2 Partial capture
09-01 18:40 40m -8 / +8 F4FVW -11 / +4 2 Partial capture
08-31 10:25 20m - / -17 HA1BF +10 / - 6 ✓ Closing fragment
08-31 10:22 20m -14 / -13 SP6AXW +2 / -16 5 ✓ Full exchange observed
08-31 09:39 20m +5 / -13 LZ1RAY +16 / +5 6 Partial capture
08-29 09:51 20m -16 / - S56EPX - / -7 2 Partial capture
08-29 09:47 20m -12 / -19 ON3EBR -6 / 0 3 ✓ Full exchange observed
08-28 15:57 20m - / - F5PBG -2 / - 2 Partial capture
08-28 10:55 20m - / +7 CT7AUT -2 / - 2 ✓ Closing fragment
08-28 10:43 20m +4 / - HB10GBT - / - 4 Partial capture
08-28 10:32 20m -4 / -6 EB3JT +1 / +4 6 ✓ Full exchange observed
08-28 10:31 20m 0 / - MW7IDN - / -12 2 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
052200  -7  532  KC2NJ ON3PJA R-17
052315  +2  534  ON3PJA PC2J JO22
052330  -5  533  KC2NJ ON3PJA R-17 (x2)
052530  -5  334  CQ ON3PJA JO21
052545  +8  354  ON3PJA S52D JN76
052600  -3  334  SP7TF ON3PJA R-05 (x2)
052730  -4  334  CQ ON3PJA JO21
052745  -2  387  ON3PJA F5PBG IN78
052745  +0  334  ON3PJA F4AWT JN24
052800  -7  334  F4AWT ON3PJA -08
052815  -4  334  ON3PJA F4AWT R+02
052830  -8  334  F4AWT ON3PJA RR73
052845  -6  334  ON3PJA F4AWT 73
20m 
UTC    dB Audio  Message
094015  +8  661  LZ1RAY ON3PJA R+05
094030 +17 1953  ON3PJA LZ1RAY -13
094045  +6  661  LZ1RAY ON3PJA R+05 (x2)
102215  +0 1281  ON3PJA SP6AXW JO80 (x2)
102300 -14  804  SP6AXW ON3PJA -16
102315  +2 1281  ON3PJA SP6AXW R-13 (x2)
102530 +10 1344  ON3PJA HA1BF -17 (x6)

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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