JA1QWT — 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: PM96

Receiver-side FT8 activity involving JA1QWT, decoded by SO8OO in southeastern Poland. 109 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 13 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-09-29.

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 109 FT8 messages attributed to JA1QWT as the transmitting token by decoded message structure across 13 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (80%), followed by 40 m (20%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (69%); the estimated median was +3 dB.

Overview

109
Messages attributed
13
UTC dates decoded
19
Active 15-min windows
+3 dB
Estimated median S/N

Bands

40m · 22 20m · 87
First attributed message: 2026-06-08
Last attributed message: 2026-09-29 19:46 UTC

Observed FT8 message patterns

Attributed sample
109 messages
Active dates
13 UTC dates
Estimated median S/N
+3 dB
Estimated 10th-90th percentile
-17 to +13 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 19, moderate (-15 to -9 dB) 15, strong (≥ -8 dB) 75.

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 JA1QWT 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 JA1QWT

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
PM96 · 28 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
8,603 km (approx.)
Last such locator decoded
2026-09-10 20:39 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 UTCBandJA1QWT S/NCounterpartCounterpart S/NMsgsCapture
11-03 20:31 80m - / -18 OE8DDX +18 / - 3 ✓ Closing fragment
11-03 20:22 160m - / -24 RJ6B -6 / - 2 ✓ Closing fragment
11-03 20:20 160m - / -24 IZ6BRN +11 / - 4 ✓ Closing fragment
11-01 20:15 160m - / -21 SM0CXS 0 / - 4 Partial capture
11-01 20:03 160m - / -21 SV8DCY 0 / - 2 ✓ Closing fragment
11-01 19:57 160m - / -25 OH5BM -10 / - 6 ✓ Closing fragment
11-01 19:50 160m - / - UX0LL -15 / - 2 Partial capture
11-01 19:49 160m - / -15 OH5KNL -2 / - 2 ✓ Closing fragment
10-30 20:14 160m - / -18 SV9MBH -21 / - 5 ✓ Closing fragment
10-30 20:06 160m - / -13 IT9GSF +2 / - 2 ✓ Closing fragment
10-21 21:06 40m - / -17 EA3EDU -7 / - 7 ✓ Closing fragment
10-18 20:37 160m - / -19 YO2NAA -20 / - 2 ✓ Closing fragment
10-18 20:26 160m - / -15 YO3YV -20 / - 2 ✓ Closing fragment
10-18 20:16 80m - / -14 ON8DM +4 / - 2 ✓ Closing fragment
10-18 19:54 80m - / -25 SP5GMM +5 / - 3 Partial capture
10-16 20:28 160m - / -21 4J3DJ -4 / - 2 ✓ Closing fragment
10-16 20:02 40m - / -13 RZ4FWA -4 / - 4 ✓ Closing fragment
10-16 19:59 40m - / -10 IZ8GUU -10 / - 2 ✓ Closing fragment
10-14 20:15 80m - / -13 RO2X -5 / - 3 ✓ Closing fragment
10-07 20:46 80m - / -14 HA1TNX +12 / - 2 ✓ Closing fragment
10-04 20:41 80m - / -18 DJ7M +20 / - 2 ✓ Closing fragment
09-30 18:02 160m - / -10 EW6CB -6 / - 4 ✓ Closing fragment
09-30 17:59 160m - / -21 SP2HMT +13 / - 3 Partial capture
09-30 17:54 160m - / -18 DL1RNW +2 / - 4 Partial capture
09-30 17:54 160m - / -10 EW6CB -6 / - 2 Partial capture
09-30 17:52 160m - / -12 DK3UA +4 / - 2 ✓ Closing fragment
09-29 19:44 40m - / -22 LB7ZG +7 / - 4 ✓ Closing fragment
09-29 19:42 40m - / -21 EA7ATM -3 / - 2 Partial capture
09-29 19:41 40m - / -18 IU3VXN +7 / - 5 ✓ Closing fragment
09-29 19:41 40m - / -14 UR9QQ -2 / - 2 Partial capture
09-28 19:33 80m - / - UX1AA -2 / - 8 Partial capture
09-22 21:00 40m - / -10 RA6YDX -2 / - 3 ✓ Closing fragment
09-11 20:25 40m - / -22 IK1LZF +2 / - 4 Partial capture
09-11 20:24 40m - / -23 IZ8DBJ -6 / - 3 ✓ Closing fragment
09-10 20:39 40m -12 / -13 LA7VK -8 / -19 8 ✓ Full exchange observed
09-10 20:35 40m -18 / - TF4M - / -19 2 Partial capture
08-29 07:12 20m - / - F4IBJ -16 / - 2 Partial capture
08-29 07:11 20m - / -12 R2BDR -16 / - 3 ✓ Closing fragment
08-27 19:35 40m - / -13 E77D +3 / - 3 ✓ Closing fragment
08-24 20:26 40m - / -16 F5RRS -4 / - 2 Partial capture
08-24 20:24 40m - / -22 ON4IQ +15 / - 3 ✓ Closing fragment
08-24 20:21 40m -16 / -25 DJ9FK +9 / -21 5 ✓ Full exchange observed
08-24 20:18 40m -20 / -16 DL5RCN +11 / -16 5 ✓ Full exchange observed
08-24 20:18 40m -16 / -22 IZ5IMD +8 / - 4 ✓ Closing observed
08-24 20:17 40m - / -16 DL9KM -5 / - 3 ✓ Closing fragment
08-24 20:16 40m - / -12 SQ4FDK -4 / - 2 ✓ Closing fragment
08-24 20:14 40m - / -1 ON4AOI +12 / - 2 ✓ Closing fragment
08-20 20:16 40m - / - EA3AAY -9 / - 3 Partial capture
08-20 19:55 40m - / -17 R2FDU -2 / - 2 Partial capture
08-20 19:52 40m -13 / -13 UW5KW +16 / - 5 ✓ Closing observed

Recent FT8 messages decoded at SO8OO

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

80m 
UTC    dB Audio  Message
204630 +14 2260  JA1QWT HA1TNX RR73
201500  -1 2229  JA1QWT RO2X KO74 (x3)
201630  -3 1501  JA1QWT RK6OQ KN87
195430  +6 2398  JA1QWT SP5GMM KO02 (x3)
201230  +2 1146  JA1QWT OK2AB JN89
201500  +7  681  JA1QWT OT7K RR73
201630  +4 2484  JA1QWT ON8DM -14 (x2)
203100 +18 2393  JA1QWT OE8DDX -18 (x3)
160m 
UTC    dB Audio  Message
195945 -12 1644  JA1QWT OH5BM -23 (x2)
200315  +0 2571  JA1QWT SV8DCY -21 (x2)
201515  -5 2222  JA1QWT SM0CXS -21 (x4)
202030  +9 2830  JA1QWT IZ6BRN JN63 (x4)
202230  -5 2510  JA1QWT RJ6B R-24 (x2)
202330  -6 1447  JA1QWT UX0LL KO50
40m 
UTC    dB Audio  Message
194530  +6 2871  JA1QWT LB7ZG 73
194645 -12  431  IT9MRM JA1QWT RR73
195900  -8 1495  JA1QWT IZ8GUU -10 (x2)
200200  +0 1772  JA1QWT RZ4FWA LO23 (x4)
210630  -7 2036  JA1QWT EA3EDU JN01 (x7)
20m 
UTC    dB Audio  Message
070900 -11 1184  JA1QWT IK4JIA -20
071130 -23 1266  JA1QWT R2BDR -12
071200 -18 1691  JA1QWT F4IBJ IN96
071230  -9 1266  JA1QWT R2BDR RR73 (x2)
071330 -14 1691  JA1QWT F4IBJ IN96

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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