JJ2ONH — 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: Japan Most frequent locator attributed to this token: PM85

Receiver-side FT8 activity involving JJ2ONH, decoded by SO8OO in southeastern Poland. 31 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, across 6 UTC dates in the available aggregate history. Observed between 2026-08-21 and 2026-10-15.

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 31 FT8 messages attributed to JJ2ONH as the transmitting token by decoded message structure across 6 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (74%), followed by 20 m (19%) and 160 m (3%). Several six-hour UTC windows tied for the largest share (81%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's weak S/N range (74%); the estimated median was -18 dB.

Overview

31
Messages attributed
6
UTC dates decoded
12
Active 15-min windows
-18 dB
Estimated median S/N

Bands

160m · 1 80m · 23 40m · 1 20m · 6
First attributed message: 2026-08-21
Last attributed message: 2026-10-15 20:54 UTC

Observed FT8 message patterns

Attributed sample
31 messages
Active dates
6 UTC dates
Estimated median S/N
-18 dB
Estimated 10th-90th percentile
-23 to -15 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 23, moderate (-15 to -9 dB) 8, 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 JJ2ONH 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 JJ2ONH

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
PM85 · 17 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
8,586 km (approx.)
Last such locator decoded
2026-10-15 20:54 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 UTCBandJJ2ONH S/NCounterpartCounterpart S/NMsgsCapture
10-17 21:04 80m - / -19 PI4DX +7 / - 3 ✓ Closing fragment
10-17 21:00 80m - / -22 PI4DX +10 / - 2 Partial capture
10-15 20:53 80m -19 / -22 DK9PH +6 / - 4 Partial capture
10-15 20:37 80m - / -9 OH6XX +6 / - 2 ✓ Closing fragment
10-15 20:28 80m - / -19 IK5CHL -1 / - 3 ✓ Closing fragment
10-15 20:23 80m - / -2 SP5EXA 0 / - 3 ✓ Closing fragment
10-15 20:13 80m - / -19 HA5OV +12 / - 4 ✓ Closing fragment
10-15 20:00 80m - / - IV3DXW +21 / - 2 Partial capture
10-15 19:55 80m - / - IV3DXW +13 / - 2 Partial capture
10-15 19:54 80m -19 / -19 LA9GX +8 / -14 5 ✓ Full exchange observed
10-15 19:51 80m -15 / - LY1DY - / - 2 Partial capture
10-15 19:48 80m -17 / -18 SP6GCU +18 / -15 11 ✓ Full exchange observed
10-15 19:42 80m - / - UA3ZNQ -4 / - 2 Partial capture
10-14 21:10 80m - / - SP4JSR 0 / - 2 Partial capture
10-14 21:07 80m -18 / -25 IK5SRB +6 / -8 9 ✓ Full exchange observed
10-14 21:01 80m - / -18 IT9EJW -7 / - 3 Partial capture
10-14 20:59 80m - / -15 ER5DX -20 / - 2 ✓ Closing fragment
10-14 20:37 80m -24 / -19 IK5SRB +9 / -9 13 Partial capture
10-14 20:33 80m - / -19 UW5KW -1 / - 3 ✓ Closing fragment
10-14 20:31 80m - / -16 F5UKW +12 / - 2 ✓ Closing fragment
10-14 20:25 80m -24 / - IK5SRB +7 / -11 5 Partial capture
10-14 20:24 80m - / -14 9A2AJ +1 / - 2 ✓ Closing fragment
10-14 20:11 80m -18 / -14 HB9CXZ +5 / - 5 ✓ Closing observed
10-14 20:07 80m - / -11 EW6BZ -4 / - 3 ✓ Closing fragment
10-14 20:05 80m - / - RK6OQ -8 / - 3 Partial capture
10-14 20:01 80m - / -15 9A5E +4 / - 11 ✓ Closing fragment
10-14 20:00 80m - / -17 HA7XL +10 / - 3 ✓ Closing fragment
10-14 19:59 80m -20 / -13 DJ7M +11 / - 3 ✓ Closing observed
10-14 19:56 80m - / -14 RO2X -3 / - 4 ✓ Closing fragment
10-09 21:22 80m - / - OE8DDX +9 / - 3 ✓ Closing fragment
10-09 21:18 80m - / -15 OT7K +11 / - 3 ✓ Closing fragment
10-09 21:14 80m - / -17 IT9VCE -3 / - 2 ✓ Closing fragment
10-08 20:30 80m - / -20 HA8AR -12 / - 5 ✓ Closing fragment
10-08 20:18 80m - / - RO2X +4 / - 3 Partial capture
10-07 20:53 80m - / -16 S59A +8 / - 2 ✓ Closing fragment
10-07 20:51 80m - / -12 HA1TNX +15 / - 2 ✓ Closing fragment
10-07 19:36 80m - / -15 SV2AEL -2 / - 2 ✓ Closing fragment
10-07 19:35 80m - / -20 RO2X +5 / - 6 Partial capture
10-07 19:35 80m - / - YO4DW -3 / - 2 Partial capture
10-07 19:16 80m - / -12 9A5TW +19 / - 2 ✓ Closing fragment
10-07 18:59 80m - / -18 9A3K +14 / - 2 ✓ Closing fragment
10-07 18:53 80m - / -18 E75RN +12 / - 2 ✓ Closing fragment
10-05 20:03 80m - / -25 PE5TS +10 / - 2 Partial capture
10-05 19:58 80m - / -17 HB9BLQ +14 / - 2 ✓ Closing fragment
10-05 19:56 80m - / - DF8XC +11 / - 3 Partial capture
10-05 19:23 80m - / -18 EA7ST +8 / - 3 ✓ Closing fragment
10-05 18:30 160m - / -23 OM3SX +8 / - 4 Partial capture
10-05 18:23 160m - / -17 LZ2IP +14 / - 3 ✓ Closing fragment
10-02 21:25 40m - / - F1HFP +5 / - 9 Partial capture
10-02 20:34 80m - / -17 5B4AMM +6 / - 2 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

80m 
UTC    dB Audio  Message
202445 +10 1747  JJ2ONH SP5EXA RR73
202815  -3 2016  JJ2ONH IK5CHL -19 (x3)
203715  +4 1881  JJ2ONH OH6XX -09 (x2)
205330 -19 2578  DK9PH JJ2ONH PM85 (x2)
205515  +0 1033  JJ2ONH DK9PH -22 (x2)
210045 +10 1043  JJ2ONH PI4DX -22 (x5)
160m 
UTC    dB Audio  Message
190630  +5 1055  JJ2ONH OK1XV RR73
191215 +18 2850  JJ2ONH IW0RGN -18 (x3)
173415 +12  491  JJ2ONH IZ7NLJ JN81
173445 +21 2850  JJ2ONH OH5LF KP31 (x3)
182300 +12  909  JJ2ONH LZ2IP -17 (x3)
183000 +13 1848  JJ2ONH OM3SX R-23 (x4)
40m 
UTC    dB Audio  Message
203800  -7 1220  JJ2ONH OZ7CL R-20
203830  +4 2473  JJ2ONH R7ZY KN98
203830  +0 1220  JJ2ONH OZ7CL 73
203900  +2 2473  JJ2ONH R7ZY KN98 (x3)
212500  +7 2100  JJ2ONH F1HFP JN28 (x9)
10m 
UTC    dB Audio  Message
104100  -6 2876  JJ2ONH SV9CVY -16
20m 
UTC    dB Audio  Message
083700  +2 1579  JJ2ONH ON6AA JO11 (x2)
133015 -20  962  <EY35D> JJ2ONH PM85
133115 -18  963  UB3LCI/QRP JJ2ONH PM85 (x4)
133600  -2  453  JJ2ONH F8KIC/P +04
133615 -11  534  IR7MGGC JJ2ONH R-08

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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