DO4TYW — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Fed. Rep. of Germany Most frequent locator attributed to this token: JO42

Receiver-side FT8 activity involving DO4TYW, decoded by SO8OO in southeastern Poland. 3,218 FT8 messages attributed to this token as transmitter, on 80m, across 8 UTC dates in the available aggregate history. Observed between 2026-08-22 and 2026-09-07.

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 3,218 FT8 messages attributed to DO4TYW as the transmitting token by decoded message structure across 8 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (100%). Most decodes (74%) fell within the six-hour window 21:00-03:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (69%); the estimated median was -5.2 dB.

Overview

3,218
Messages attributed
8
UTC dates decoded
150
Active 15-min windows
-5.2 dB
Estimated median S/N

Bands

80m · 3,218
First attributed message: 2026-08-22
Last attributed message: 2026-09-07 17:55 UTC

Observed FT8 message patterns

Attributed sample
3,218 messages
Active dates
8 UTC dates
Estimated median S/N
-5.2 dB
Estimated 10th-90th percentile
-13 to +1 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 133, moderate (-15 to -9 dB) 875, strong (≥ -8 dB) 2,210.

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 DO4TYW 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 DO4TYW

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
JO42 · 2,883 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
934 km (approx.)
Last such locator decoded
2026-09-07 17:55 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 UTCBandDO4TYW S/NCounterpartCounterpart S/NMsgsCapture
09-07 17:45 80m -14 / -5 OZ1JMJ -19 / -3 5 ✓ Full exchange observed
09-07 17:38 80m -10 / - DM5CF -14 / +4 3 ✓ Closing observed
09-06 02:58 80m - / - SQ3KO -12 / - 7 Partial capture
09-06 02:32 80m 0 / - OZ8MW +3 / +9 5 ✓ Full exchange observed
09-06 01:32 80m -3 / -5 SP1ADT +16 / - 4 ✓ Closing observed
09-06 01:30 80m -8 / -8 LA1QRO +6 / -8 5 ✓ Full exchange observed
09-06 01:28 80m +2 / +2 DO6FM +6 / - 5 ✓ Full exchange observed
09-06 00:52 80m - / -19 R8QA -18 / - 2 Partial capture
09-06 00:36 80m -8 / 0 LA1QRO +3 / 0 5 ✓ Full exchange observed
09-06 00:26 80m -7 / -18 CT2GQA -23 / -20 7 ✓ Full exchange observed
09-06 00:22 80m - / - CT2GQA -22 / - 2 Partial capture
09-06 00:15 80m -2 / +10 OZ7KJ/P +7 / +10 5 ✓ Full exchange observed
09-06 00:03 80m -3 / -13 UT2UB +8 / -5 8 ✓ Full exchange observed
09-05 23:54 80m -3 / -17 EU1KI +6 / -7 4 ✓ Full exchange observed
09-05 23:48 80m 0 / -6 F4FPR -14 / -20 7 ✓ Full exchange observed
09-05 23:42 80m -4 / 0 LA2W/P +3 / - 5 ✓ Full exchange observed
09-05 23:30 80m -12 / 0 DL7UKM -9 / -4 5 ✓ Full exchange observed
09-05 23:05 80m -1 / -5 OE1KSG -1 / -16 13 Partial capture
09-05 22:19 80m -8 / -1 DA6OOM -19 / -21 3 ✓ Full exchange observed
09-05 21:37 80m - / - YO4LUP -4 / - 2 Partial capture
09-05 21:29 80m -6 / -3 IV3DSG -7 / -13 5 ✓ Full exchange observed
09-05 21:22 80m -10 / - R7CD - / -7 8 Partial capture
09-05 21:10 80m -12 / -17 SP6SR +15 / - 5 ✓ Full exchange observed
09-05 21:04 80m -6 / 0 DL1IP +1 / +4 5 ✓ Full exchange observed
09-05 20:59 80m -5 / +1 DF1IH -5 / -1 5 ✓ Full exchange observed
09-05 20:53 80m - / - R3ICU -10 / - 2 Partial capture
09-05 20:47 80m - / - R3PJV -7 / - 2 Partial capture
09-05 20:45 80m -14 / -3 F1PBZ +4 / +1 4 ✓ Full exchange observed
09-05 20:26 80m -10 / +1 F4HEX -17 / +4 3 ✓ Full exchange observed
09-05 20:14 80m -6 / -8 EU1AFX -6 / -10 4 ✓ Full exchange observed
09-05 20:07 80m -12 / - DO1XMC - / -23 2 Partial capture
09-05 19:37 80m -11 / - M8FQT - / -5 2 ✓ Closing fragment
09-05 19:31 80m - / - EU1AFX 0 / - 3 Partial capture
09-05 19:24 80m -10 / - DO1XMC - / -23 11 Partial capture
09-05 19:10 80m - / -3 YL2TM -10 / - 3 Partial capture
09-05 18:12 80m - / - SQ2HEX 0 / - 3 Partial capture
09-05 18:06 80m -12 / 0 DO8XC +2 / -1 5 ✓ Full exchange observed
09-05 18:00 80m - / - SP7LPF -4 / - 2 Partial capture
09-05 17:55 80m -6 / +3 DA6NEL -18 / -21 9 ✓ Full exchange observed
08-30 02:56 80m -4 / -1 ON4MAP -11 / +7 5 ✓ Full exchange observed
08-30 02:53 80m -4 / -17 YO8XFU +4 / -11 7 ✓ Full exchange observed
08-30 02:27 80m -6 / -10 YO3RU +5 / +4 5 ✓ Full exchange observed
08-30 01:37 80m -8 / - SP1TP -6 / -12 4 ✓ Closing observed
08-30 00:23 80m -5 / -7 YL4U +10 / - 4 ✓ Closing observed
08-30 00:21 80m - / -9 IK2LRF -5 / - 3 ✓ Closing fragment
08-29 23:57 80m -2 / - EA7AKE -18 / -4 6 ✓ Closing observed
08-29 22:54 80m - / - DF8QB +4 / - 3 ✓ Closing fragment
08-29 22:49 80m -10 / -6 ON1BH -9 / - 4 ✓ Full exchange observed
08-29 22:29 80m -13 / +3 OZ1LGJ -6 / -1 8 ✓ Full exchange observed
08-29 22:23 80m -10 / -9 DM9EE -5 / +3 4 ✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

80m 
UTC    dB Audio  Message
174630 -14 1396  OZ1JMJ DO4TYW RR73
174645 -18 1802  DO4TYW OZ1JMJ 73
174700 -12 1396  CQ DO4TYW JO42 (x13)

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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