SQ9DXN — 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: Poland Most frequent locator attributed to this token: JO90

Receiver-side FT8 activity involving SQ9DXN, decoded by SO8OO in southeastern Poland. 175 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, across 11 UTC dates in the available aggregate history. Observed between 2026-07-13 and 2026-11-06.

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 175 FT8 messages attributed to SQ9DXN as the transmitting token by decoded message structure across 11 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (73%), followed by 160 m (15%) and 40 m (12%). Several six-hour UTC windows tied for the largest share (95%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (86%); the estimated median was +3 dB.

Overview

175
Messages attributed
11
UTC dates decoded
24
Active 15-min windows
+3 dB
Estimated median S/N

Bands

First attributed message: 2026-07-13
Last attributed message: 2026-11-06 23:40 UTC

Observed FT8 message patterns

Attributed sample
175 messages
Active dates
11 UTC dates
Estimated median S/N
+3 dB
Estimated 10th-90th percentile
-10 to +15 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 2, moderate (-15 to -9 dB) 23, strong (≥ -8 dB) 150.

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.

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 SQ9DXN

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
JO90 · 105 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
208 km (approx.)
Last such locator decoded
2026-11-06 23:40 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 UTCBandSQ9DXN S/NCounterpartCounterpart S/NMsgsCapture
11-06 23:40 80m 0 / - HI9R - / - 2 Partial capture
11-06 23:33 80m +1 / -8 UX5UO +8 / -10 5 ✓ Full exchange observed
11-06 23:32 80m +1 / - UK8OM - / - 2 Partial capture
11-06 23:29 80m +5 / - UK8OM - / - 2 Partial capture
11-06 23:28 80m +6 / - HI9R - / - 2 Partial capture
11-06 23:26 80m +4 / - DM3XD - / -12 3 ✓ Closing fragment
11-06 23:06 80m -6 / - E21EIC - / - 7 Partial capture
11-06 23:04 80m +1 / - DH8BQA +15 / -6 4 ✓ Closing observed
11-06 23:00 80m +14 / -4 SP9KW -9 / -13 3 Partial capture
11-06 22:56 80m +15 / - SP9KW -9 / -11 4 Partial capture
11-06 22:54 80m -2 / +4 LA1XFA +6 / -2 5 ✓ Full exchange observed
11-06 22:53 80m -1 / - IR0PG - / - 2 Partial capture
11-06 22:48 80m -1 / - UK8OM - / - 5 Partial capture
11-06 22:44 160m -10 / -4 HA7TM +15 / - 4 Partial capture
11-06 22:42 160m -4 / -3 DK6WH +2 / -11 5 ✓ Full exchange observed
11-06 22:14 80m +8 / - A41CK - / -19 3 ✓ Closing fragment
11-06 22:11 80m +2 / - M8LOD - / -18 3 ✓ Closing fragment
11-06 22:10 80m +7 / - EA4DL - / - 3 Partial capture
11-06 22:07 80m +6 / -10 RA3ZDU +2 / -3 5 ✓ Full exchange observed
11-06 22:06 80m +8 / - DP75BAC - / -11 2 Partial capture
11-06 22:01 80m -1 / -7 DL9KM -6 / -7 3 ✓ Full exchange observed
11-06 21:59 80m +2 / -11 UN0GY -16 / -9 6 ✓ Full exchange observed
11-06 21:56 80m +6 / -6 DM1SV 0 / -7 4 ✓ Full exchange observed
11-06 21:53 80m +2 / - EA3E - / - 3 Partial capture
09-24 20:32 160m -8 / - RI1FJZ - / - 2 Partial capture
09-24 20:28 160m -10 / - RA0AF - / - 2 Partial capture
09-24 20:20 160m -11 / - RI1FJZ - / - 12 Partial capture
09-15 06:32 40m - / -14 DK6WH +4 / - 2 ✓ Closing fragment
09-15 06:30 40m - / -6 9A7BB +1 / - 2 ✓ Closing fragment
09-13 23:10 80m +12 / -3 M6XZD -2 / -3 5 ✓ Full exchange observed
09-13 23:07 80m +4 / - CT7AUT - / -12 2 ✓ Closing fragment
09-13 23:05 80m +9 / - DK1MCS - / -4 2 ✓ Closing fragment
09-13 23:03 80m +10 / -14 ON5WR -10 / -6 5 ✓ Full exchange observed
09-13 22:53 40m - / -10 SV9QWC -12 / - 2 ✓ Closing fragment
08-28 22:49 80m +11 / - VP2MAA - / - 9 Partial capture
08-28 22:47 80m -5 / -11 CT3MD -17 / - 4 ✓ Closing observed
08-28 22:42 80m +6 / - VP2MAA - / - 2 Partial capture
08-24 17:34 80m +19 / - ZS6WAB -22 / -24 8 ✓ Closing observed
08-21 07:11 20m - / -15 IU3VHR +4 / - 2 ✓ Closing fragment
08-13 21:13 40m - / -7 ER1CW -8 / - 2 ✓ Closing fragment
08-12 22:28 80m +16 / +3 TF4M +5 / -2 4 ✓ Full exchange observed
08-12 22:22 80m +14 / - D2UY - / -15 4 ✓ Closing fragment
08-12 22:20 80m +12 / -15 PY5/PY2TIM -20 / -15 5 Partial capture
08-12 22:19 80m +14 / - <...> - / - 2 Partial capture
08-12 21:50 10m - / +1 DN9CHV -14 / - 2 ✓ Closing fragment
08-12 21:45 10m - / -1 DG5PW -20 / - 2 ✓ Closing fragment
08-12 21:44 10m - / 0 DA6PP -18 / - 2 ✓ Closing fragment
08-12 05:07 40m - / - DL9KM -21 / - 3 ✓ Closing fragment
08-10 22:33 40m -5 / - TN8GD - / - 2 Partial capture
08-10 22:31 40m -8 / - BD8ELZ - / - 2 Partial capture

Recent FT8 messages decoded at SO8OO

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

80m
UTC    dB Audio  Message
232700  +4 1198  DM3XD SQ9DXN R-12 (x2)
232800  +6 1528  HI9R SQ9DXN JO90 (x2)
232945  +5 1528  UK8OM SQ9DXN JO90 (x4)
233345  +4 1092  SQ9DXN UX5UO KO50
233430  +0 1091  UX5UO SQ9DXN -10
233445 +16 1091  SQ9DXN UX5UO R-08
233500  +2 1092  UX5UO SQ9DXN RR73
233515  +4 1091  SQ9DXN UX5UO 73
234000  +0 1273  HI9R SQ9DXN JO90 (x2)
160m
UTC    dB Audio  Message
202645 -12 1995  RI1FJZ SQ9DXN JO90 (x2)
202845 -10 1995  RA0AF SQ9DXN JO90 (x2)
203215  -4 2187  RI1FJZ SQ9DXN JO90 (x2)
224245  -4 1042  DK6WH SQ9DXN JO90
224300  -1 1041  SQ9DXN DK6WH -03
224315  -4 1042  DK6WH SQ9DXN R-11
224330  +4 1041  SQ9DXN DK6WH RR73
224345  -4 1042  DK6WH SQ9DXN 73
224445 -10 2102  HA7TM SQ9DXN JO90
224600 +17 2102  SQ9DXN HA7TM -04 (x3)
40m
UTC    dB Audio  Message
050815 -20 1722  SQ9DXN DL9KM JN68 (x2)
211315  -9 1330  SQ9DXN ER1CW -07 (x2)
224615 -12  791  SQ9DXN D44TWO -20
225300 -15 1584  SQ9DXN SV9QWC -10 (x2)
063045  +0  684  SQ9DXN 9A7BB -06 (x2)
063245  +5 1297  SQ9DXN DK6WH -14 (x2)
063930  -9 1359  LZ1ZF SQ9DXN 73
064145 -11  368  SQ9DXN G0JEI RR73
192515 -10  263  SQ9DXN TC0TR RR73
223230 -13  302  SQ9DXN W1FAM -22
20m
UTC    dB Audio  Message
071115  -2  645  SQ9DXN IU3VHR -15 (x2)
213830  -7  502  SQ9DXN XU7O -10
10m
UTC    dB Audio  Message
090130 -23 1566  SQ9DXN PA0KJK RR73
214400 -17 1705  SQ9DXN DA6PP +00 (x2)
214545 -17 1923  SQ9DXN DG5PW -01 (x2)
215000 -13 1360  SQ9DXN DN9CHV +01 (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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