SQ9DXN — FT8 activity observed at SO8OO

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. 89 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, across 9 UTC dates in the available aggregate history. Observed between 2026-07-13 and 2026-09-15.

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 89 FT8 messages attributed to SQ9DXN as the transmitting token by decoded message structure across 9 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (70%), followed by 40 m (24%) and 160 m (7%). Several six-hour UTC windows tied for the largest share (91%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (90%); the estimated median was +10 dB.

Overview

89
Messages attributed
9
UTC dates decoded
14
Active 15-min windows
+10 dB
Estimated median S/N

Bands

160m · 6 80m · 62 40m · 21
First attributed message: 2026-07-13
Last attributed message: 2026-09-15 06:39 UTC

Observed FT8 message patterns

Attributed sample
89 messages
Active dates
9 UTC dates
Estimated median S/N
+10 dB
Estimated 10th-90th percentile
-9 to +16 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 0, moderate (-15 to -9 dB) 9, strong (≥ -8 dB) 80.

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 SQ9DXN 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 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 · 47 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
208 km (approx.)
Last such locator decoded
2026-09-13 23:10 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
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
08-10 22:29 40m -8 / - <...> - / - 2 Partial capture
08-10 22:26 40m -6 / - DK8HC - / - 2 ✓ Closing fragment
08-10 22:24 40m -9 / - VU2MSA - / -14 3 ✓ Closing fragment
08-10 22:17 160m -7 / -20 OH0ERF -19 / -11 7 Partial capture
08-10 22:14 80m +15 / +5 DL6MRM +2 / -2 2 Partial capture
08-10 22:12 80m +9 / - YO6BJG +1 / -3 2 Partial capture
08-10 22:11 80m +10 / +5 SP1MGM +4 / -1 6 ✓ Full exchange observed
08-10 22:10 80m +14 / +1 OE9HGV -12 / -5 4 ✓ Full exchange observed
08-10 22:04 40m -4 / - LY8O - / - 2 ✓ Closing fragment
07-29 22:22 40m -11 / - MW0BYS - / -8 3 ✓ Closing fragment
07-29 22:14 40m -15 / - 4X5JK -19 / -7 2 ✓ Closing observed
07-29 07:06 20m - / -13 M0MLS -10 / - 2 ✓ Closing fragment
07-26 14:33 10m - / -3 F4FTV -13 / - 2 ✓ Closing fragment
07-24 22:50 80m -2 / +1 DL4FNE +6 / -1 5 ✓ Full exchange observed
07-24 22:48 80m +4 / - OK9DMR - / -8 2 ✓ Closing fragment
07-24 22:47 80m +17 / 0 DO9JTR -8 / -13 5 ✓ Full exchange observed
07-24 22:45 80m +8 / - ZS6WAB - / - 2 Partial capture
07-24 22:43 80m +16 / +8 DL0MI +1 / -2 6 ✓ Full exchange observed
07-24 22:08 40m - / +2 LB9ZG -18 / - 2 ✓ Closing fragment
07-24 22:04 40m - / - DL1VJL -9 / - 4 ✓ Closing fragment
07-24 12:56 10m - / - PA3AGN -11 / - 3 Partial capture
07-24 12:52 10m - / +6 DJ0MAB -9 / - 3 ✓ Closing fragment
07-24 12:50 10m - / -2 DK6WS -13 / - 3 ✓ Closing fragment
07-23 12:26 10m - / - DK3WH -17 / - 4 Partial capture
07-13 21:27 40m - / - SP9MOA +3 / - 3 Partial capture
07-13 21:26 40m - / - DL7ACA -8 / - 2 ✓ Closing fragment
06-30 12:27 10m - / -4 IK4RVY -14 / - 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
223530  -5 1253  PY2GIG SQ9DXN JO90
050745 -23 1722  SQ9DXN DL9KM JN68 (x3)
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
80m 
UTC    dB Audio  Message
225315 +13 1954  VP2MAA SQ9DXN JO90
230345  +9 1697  ON5WR SQ9DXN JO90
230400 -14 1697  SQ9DXN ON5WR -14
230415 +11 1697  ON5WR SQ9DXN R-06
230430  -7 1697  SQ9DXN ON5WR RR73
230445 +10 1697  ON5WR SQ9DXN 73
230515 +10 1697  DK1MCS SQ9DXN -04 (x2)
230715  +6 1480  CT7AUT SQ9DXN -12 (x2)
231030 +13 2288  M6XZD SQ9DXN JO90
231045  +0 2288  SQ9DXN M6XZD -03
231100 +10 2289  M6XZD SQ9DXN R-03
231115  -4 2288  SQ9DXN M6XZD RR73
231130 +14 2288  M6XZD SQ9DXN 73
20m 
UTC    dB Audio  Message
172330  -1  784  SQ9DXN YO2LIM -05
070130 -10 1978  SQ9DXN <...> -08
070200 -17 1977  SQ9DXN RR73; F1JPG <...> -08
070645  -9 1916  SQ9DXN M0MLS -13 (x2)
071115  -2  645  SQ9DXN IU3VHR -15 (x2)
213830  -7  502  SQ9DXN XU7O -10
10m 
UTC    dB Audio  Message
125630  -7 1192  SQ9DXN PA3AGN JO22 (x3)
125930  -4 1193  SQ9DXN DN9BT JO40
141845 -15 2444  SQ9DXN F1MXE RR73
143045  -5 2535  SQ9DXN DG7GZ -13
143330 -15  937  SQ9DXN F4FTV -03 (x2)
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)
160m 
UTC    dB Audio  Message
221700  -7 1977  OH0ERF SQ9DXN JO90 (x2)
221745 -19 1458  SQ9DXN OH0ERF -20
221800  -6 1977  OH0ERF SQ9DXN R-11 (x4)

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.

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