SQ5TDW — 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: KO01

Receiver-side FT8 activity involving SQ5TDW, decoded by SO8OO in southeastern Poland. 13 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 3 UTC dates in the available aggregate history. Observed between 2026-06-20 and 2026-10-18.

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 13 FT8 messages attributed to SQ5TDW as the transmitting token by decoded message structure across 3 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (92%), followed by 20 m (8%). In this small sample, the estimated median decoder S/N was -20 dB; no usual signal pattern is inferred.

Overview

13
Messages attributed
3
UTC dates decoded
4
Active 15-min windows
-20 dB
Estimated median S/N

Bands

40m · 12 20m · 1
First attributed message: 2026-06-20
Last attributed message: 2026-10-18 12:18 UTC

Observed FT8 message patterns

Attributed sample
13 messages
Active dates
3 UTC dates
Estimated median S/N
-20 dB
S/N percentile sample
Too small
Recurring-pattern threshold
Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 12, moderate (-15 to -9 dB) 0, strong (≥ -8 dB) 1.

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. The sample does not meet the threshold for a recurring time or signal-pattern claim (20 attributed messages, three UTC dates and five distinct 15-minute windows).

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with SQ5TDW in decoded directed-looking exchanges:

Most frequent locator attributed to SQ5TDW

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
KO01 · 6 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
182 km (approx.)
Last such locator decoded
2026-10-18 12:18 UTC

Other locator fields attributed to this token: KO02 (2).

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 UTCBandSQ5TDW S/NCounterpartCounterpart S/NMsgsCapture
10-18 12:10 40m -24 / -16 IQ4JO -14 / - 3 ✓ Closing observed
10-18 12:04 40m - / - UA4FKT -18 / - 2 Partial capture
10-18 12:04 40m -22 / -15 HG8LXL -2 / +5 7 Partial capture
10-18 12:04 40m - / - SP2MGR/P -14 / - 2 Partial capture
10-18 12:03 40m -20 / -13 SP3SBY -9 / -1 8 ✓ Full exchange observed
10-17 12:29 40m - / -9 SP5PW -17 / - 3 ✓ Closing fragment
10-17 12:18 40m - / +1 DL6EL -6 / - 3 Partial capture
10-11 12:59 40m - / - F4BYA -4 / - 4 Partial capture
10-11 12:54 40m - / -8 DB2HA -11 / - 3 ✓ Closing fragment
10-11 12:53 40m - / - F4BYA -4 / - 4 Partial capture
10-11 12:47 40m - / -7 UR5TL -1 / - 3 ✓ Closing fragment
10-11 12:46 40m - / -1 OH3MB -11 / - 2 ✓ Closing fragment
10-11 12:41 40m - / -11 SP4NKU -3 / - 2 Partial capture
10-11 12:40 40m - / -13 HA7TM +5 / - 3 ✓ Closing fragment
10-11 12:33 40m - / - F4BYA -2 / - 3 Partial capture
10-11 12:31 40m - / - HA7TM +1 / - 3 Partial capture
10-11 12:29 40m - / - UT5CM -5 / - 3 Partial capture
10-03 11:54 40m - / -9 9A3AUH -4 / - 3 ✓ Closing fragment
10-03 11:39 40m - / -8 DH0GBC -13 / - 3 ✓ Closing fragment
10-03 11:28 40m - / -15 DG0MAN -3 / - 3 ✓ Closing fragment
10-03 11:19 40m - / -18 SQ5TA -4 / - 4 ✓ Closing fragment
09-19 12:37 40m - / -16 OH3MB -17 / - 2 Partial capture
09-19 12:35 40m - / -17 9A4ZM -5 / - 3 ✓ Closing fragment
09-01 11:24 40m - / -11 IR7MGGC -20 / - 2 Partial capture
08-14 14:15 20m - / -9 E70SZ -16 / - 6 Partial capture
08-09 16:19 20m - / - OE3JBS -14 / - 2 Partial capture
08-09 15:53 40m - / - DL6UM -9 / - 2 ✓ Closing fragment
08-09 14:26 20m - / -11 DK2MAX -14 / - 2 Partial capture
08-08 17:21 10m - / -18 F1PBZ -4 / - 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
120515 -17 1535  SQ5TDW UA4FKT LO23
120515 -13 1195  SQ5TDW SP3SBY 73
120515  +1 1256  SQ5TDW HG8LXL KN06 (x2)
120600 -22 1534  HG8LXL SQ5TDW +05
120615  -5 1256  SQ5TDW HG8LXL R-15 (x3)
121015 -15 2373  SQ5TDW IQ4JO R-16
121030 -24 1533  IQ4JO SQ5TDW RR73
121045 -14 2374  SQ5TDW IQ4JO 73
121045  +2 1256  SQ5TDW HG8LXL KN06
121700 -20 1532  CQ SQ5TDW KO01                        a1 (x3)
20m 
UTC    dB Audio  Message
142630 -13 2524  SQ5TDW DK2MAX JN58 (x2)
161900 -12 2115  SQ5TDW OE3JBS JN78 (x2)
134330 -17 1330  SQ5TDW RA6FSV LN05
141530 -22 1556  SQ5TDW E70SZ JN84 (x6)
150245 -22 1566  SQ5TDW PD3LKN JO22
150445 -20 2330  SQ5TDW M7PHE IO93
10m 
UTC    dB Audio  Message
172130  -4 2732  SQ5TDW F1PBZ -18 (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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