JA0RUG — 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: PM97

Receiver-side FT8 activity involving JA0RUG, decoded by SO8OO in southeastern Poland. 312 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 32 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-09-05.

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 312 FT8 messages attributed to JA0RUG as the transmitting token by decoded message structure across 32 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (58%), followed by 40 m (40%) and 80 m (2%). Most decodes (100%) 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 -10 dB.

Overview

312
Messages attributed
32
UTC dates decoded
67
Active 15-min windows
-10 dB
Estimated median S/N

Bands

80m · 7 40m · 125 20m · 180
First attributed message: 2026-06-06
Last attributed message: 2026-09-05 21:05 UTC

Observed FT8 message patterns

Attributed sample
312 messages
Active dates
32 UTC dates
Estimated median S/N
-10 dB
Estimated 10th-90th percentile
-17 to -4 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 46, moderate (-15 to -9 dB) 152, strong (≥ -8 dB) 114.

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 JA0RUG 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 JA0RUG

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
PM97 · 142 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
8,513 km (approx.)
Last such locator decoded
2026-09-05 21:05 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 UTCBandJA0RUG S/NCounterpartCounterpart S/NMsgsCapture
10-14 20:27 80m - / -17 ON4IQ +4 / - 2 Partial capture
10-09 20:07 80m - / - R7HL -15 / - 2 Partial capture
10-03 20:10 40m - / -16 DJ6VX +14 / - 3 ✓ Closing fragment
10-02 19:54 40m - / -19 OH8RA -6 / - 2 Partial capture
10-02 19:50 40m - / -20 EB3JT -12 / - 2 ✓ Closing fragment
10-02 19:49 40m - / -22 F4HEA +7 / - 5 ✓ Closing fragment
10-01 20:52 40m - / -11 HB9ELE +15 / - 3 ✓ Closing fragment
10-01 20:27 40m - / -24 HB9ELE +14 / - 5 Partial capture
10-01 19:52 40m - / -17 RD3FY 0 / - 2 ✓ Closing fragment
10-01 19:49 40m - / -13 PG7M +4 / - 4 ✓ Closing fragment
09-27 21:15 40m - / -16 GM3CQD 0 / - 2 ✓ Closing fragment
09-27 21:02 40m - / -20 HB10GBT -15 / - 3 Partial capture
09-27 20:55 40m - / -14 HB10GBT -18 / - 2 Partial capture
09-27 20:53 40m - / -20 9A5CW -3 / - 2 ✓ Closing fragment
09-27 20:50 40m - / -18 CR7BRV -7 / - 6 Partial capture
09-24 19:32 80m - / - GM0OPS +1 / - 5 Partial capture
09-12 20:46 40m - / -9 OZ1AXG +20 / - 2 ✓ Closing fragment
09-06 20:15 80m - / -16 RG5G -2 / - 2 ✓ Closing fragment
09-05 21:08 40m - / -11 EA5JLN -12 / - 2 Partial capture
09-05 21:05 40m -11 / -14 OZ3FYN/P 0 / - 3 ✓ Closing observed
09-05 20:59 40m -12 / -11 OZ7KJ/P +12 / - 4 ✓ Closing observed
09-05 20:57 40m - / -13 YO3OBB +4 / - 2 ✓ Closing fragment
09-05 20:55 40m - / -13 TA7MMI -2 / - 2 ✓ Closing fragment
09-04 20:50 40m -10 / - RA0FZ - / -12 2 ✓ Closing fragment
09-04 20:45 40m -10 / - OE5NVL - / - 5 Partial capture
09-04 20:43 40m -9 / - EU2AAI - / - 2 Partial capture
09-04 20:40 40m -4 / - 9A5MTV - / -16 3 ✓ Closing fragment
09-04 20:39 40m -9 / 0 DK1MCS -3 / -19 8 ✓ Full exchange observed
09-04 20:33 40m - / -22 EU2AAI -13 / - 3 Partial capture
09-04 20:29 40m -8 / -8 UB3AVN -2 / - 3 ✓ Closing observed
09-04 20:27 40m -14 / - R3MDA - / -9 3 ✓ Closing fragment
09-04 20:16 40m -14 / - SP0YAGI - / -18 2 Partial capture
09-04 20:09 40m -10 / -16 SV5BYP -4 / - 6 ✓ Closing observed
09-04 20:08 40m -13 / -13 F5SJC +2 / - 4 ✓ Closing observed
09-04 20:06 40m - / -7 RL3T -4 / - 3 ✓ Closing fragment
09-04 19:06 40m - / -10 R2SBI -2 / - 2 ✓ Closing fragment
09-04 18:57 40m - / -19 YO8RQP +2 / - 4 Partial capture
09-04 18:56 40m - / -25 EU2AAI 0 / - 4 Partial capture
09-04 18:51 40m - / -12 UB3DRL +10 / - 5 ✓ Closing fragment
09-04 18:50 40m - / -7 UY7AM +6 / - 2 Partial capture
09-04 18:41 40m - / -15 EA3NE 0 / - 4 ✓ Closing fragment
09-04 18:40 40m - / -12 RX6DA -7 / - 3 ✓ Closing fragment
09-04 18:39 40m - / -18 DL1PAB -3 / - 2 Partial capture
09-04 18:39 40m - / -11 LZ2SJ -6 / - 3 Partial capture
09-04 18:31 40m - / -14 SP9KR +18 / - 2 ✓ Closing fragment
09-04 18:24 40m -14 / - DL1KYF/P - / - 2 Partial capture
09-03 19:53 80m - / -6 UF3T +12 / - 3 ✓ Closing fragment
09-03 19:50 40m - / - EB3JT 0 / - 5 Partial capture
09-03 19:48 40m -10 / - UT6US +8 / -11 3 ✓ Closing observed
09-03 19:44 40m -13 / - SQ9DJQ - / -15 5 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

160m 
UTC    dB Audio  Message
211030 -11 2255  JA0RUG OH0Z -18
80m 
UTC    dB Audio  Message
195345 +13 1110  JA0RUG UF3T -06 (x3)
195545  +1  503  JA0RUG R6ZEJ R-15
201515  +2 1701  JA0RUG RG5G -16 (x2)
193200  +0 1255  JA0RUG GM0OPS IO75 (x5)
200745 -18 1957  JA0RUG R7HL LN04 (x2)
202700  +4 1945  JA0RUG ON4IQ -17 (x2)
40m 
UTC    dB Audio  Message
205245 +15  642  JA0RUG HB9ELE JN47 (x3)
194930  +2  566  JA0RUG F4HEA JN37 (x2)
195000 -12  274  JA0RUG EB3JT R-20
195030 +10  566  JA0RUG F4HEA JN37
195030 -11  274  JA0RUG EB3JT 73
195100  +8  566  JA0RUG F4HEA R-22 (x2)
195430  -5 2882  JA0RUG OH8RA -19 (x2)
201015 +18 2592  JA0RUG DJ6VX JO31 (x3)
20m 
UTC    dB Audio  Message
190545 -10 1773  JA0RUG EA2JE -19 (x3)
191115  +4  266  JA0RUG G4SJG IO92 (x3)
200300 +12 2921  JA0RUG EA7R -17 (x2)
210130  +7 1269  JA0RUG GB64MOD -12 (x5)
210630  -6 1484  JA0RUG EA3ML RR73 (x2)

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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