DO4SO — 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: Fed. Rep. of Germany Most frequent locator attributed to this token: JN59

Receiver-side FT8 activity involving DO4SO, decoded by SO8OO in southeastern Poland. 324 FT8 messages attributed to this token as transmitter, on 160m, 80m, across 7 UTC dates in the available aggregate history. Observed between 2026-10-03 and 2026-10-15.

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 324 FT8 messages attributed to DO4SO as the transmitting token by decoded message structure across 7 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (99%), followed by 160 m (1%). Most decodes (97%) fell within the six-hour window 15:00-21:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (91%); the estimated median was -1 dB.

Overview

324
Messages attributed
7
UTC dates decoded
35
Active 15-min windows
-1 dB
Estimated median S/N

Bands

160m · 3 80m · 321
First attributed message: 2026-10-03
Last attributed message: 2026-10-15 15:30 UTC

Observed FT8 message patterns

Attributed sample
324 messages
Active dates
7 UTC dates
Estimated median S/N
-1 dB
Estimated 10th-90th percentile
-8 to +7 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 13, moderate (-15 to -9 dB) 17, strong (≥ -8 dB) 294.

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 DO4SO 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 DO4SO

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
JN59 · 154 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
777 km (approx.)
Last such locator decoded
2026-10-15 15:30 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 UTCBandDO4SO S/NCounterpartCounterpart S/NMsgsCapture
10-15 15:30 80m -5 / +3 DK7ZT +6 / - 3 ✓ Full exchange observed
10-12 17:24 80m +2 / +5 DK5RL +8 / -8 3 ✓ Full exchange observed
10-12 17:05 80m -4 / -10 R7DX -5 / -9 6 ✓ Full exchange observed
10-12 17:04 80m -2 / - DO2NM -6 / - 5 ✓ Full exchange observed
10-12 17:02 80m +2 / -1 HA2EOA +10 / +2 5 ✓ Full exchange observed
10-12 16:57 80m -16 / -6 OK1UOZ +12 / - 5 ✓ Full exchange observed
10-12 16:56 80m - / +6 DO1NJN -5 / - 3 ✓ Closing fragment
10-12 16:56 80m - / - HA2EOA +2 / - 2 Partial capture
10-08 18:29 80m +6 / - SM3WFR -18 / -20 5 ✓ Closing observed
10-08 18:28 80m +2 / - E70SZ - / - 2 Partial capture
10-08 18:18 80m - / -14 R2SN +1 / - 2 Partial capture
10-08 18:16 80m +6 / +2 DL6EL +5 / 0 5 ✓ Full exchange observed
10-08 18:13 80m - / - DO9SAM +10 / - 4 Partial capture
10-08 18:12 80m -3 / - RX1AB -15 / +5 7 ✓ Closing observed
10-08 18:12 80m - / - E70SZ +2 / - 2 Partial capture
10-06 20:11 80m - / +5 DB100FT -6 / - 4 ✓ Closing fragment
10-06 20:11 80m +8 / -1 SP3JHZ -6 / -2 5 ✓ Full exchange observed
10-06 20:07 80m +2 / -9 HA7TM +14 / - 6 ✓ Full exchange observed
10-06 20:02 80m +2 / -16 UC6D +4 / -9 4 ✓ Full exchange observed
10-06 20:01 80m +2 / - DK8CX +7 / +6 3 Partial capture
10-06 19:59 80m - / - DM5XT -14 / - 2 Partial capture
10-06 19:58 80m -2 / -5 DK3TNA -4 / -2 8 ✓ Full exchange observed
10-06 19:58 80m -5 / - DK8HC -6 / +4 4 ✓ Closing observed
10-06 19:58 80m - / - UC6D -4 / - 2 Partial capture
10-06 19:54 80m +2 / - DO5OT +3 / +8 5 ✓ Full exchange observed
10-06 19:50 80m 0 / - C31KC - / - 5 Partial capture
10-06 19:38 80m +8 / - GI0KMX - / -13 3 ✓ Closing fragment
10-06 19:17 80m +2 / - GW0RQC - / - 3 Partial capture
10-06 19:03 80m - / -16 YO9HP -6 / - 2 ✓ Closing fragment
10-06 18:37 80m +5 / - DK7XD - / - 9 Partial capture
10-06 18:31 80m -2 / -16 UX7QV -3 / -11 10 Partial capture
10-06 18:29 80m -2 / +2 PA3BMB +3 / - 5 ✓ Full exchange observed
10-06 18:24 80m -10 / - RX3ASQ -3 / - 2 ✓ Closing observed
10-06 18:19 80m -8 / -8 YO4NF 0 / -4 4 ✓ Full exchange observed
10-06 18:18 80m -4 / - DO5HOK - / - 2 Partial capture
10-06 18:13 80m -2 / -4 DL1UDO +8 / - 4 ✓ Full exchange observed
10-06 18:12 80m +3 / -12 LA2JKA +12 / -8 4 ✓ Full exchange observed
10-06 18:05 80m -4 / - 9A5MP - / -22 4 ✓ Closing fragment
10-06 18:01 80m -3 / +4 OZ5AGJ -10 / - 4 ✓ Closing observed
10-06 17:59 80m -6 / - 9A5MP - / -25 3 Partial capture
10-05 15:32 80m -4 / -1 YU65AEC +3 / - 3 Partial capture
10-05 15:10 80m - / - DO8JB -14 / - 2 Partial capture
10-05 15:09 80m - / - UW5KW +9 / - 2 Partial capture
10-04 18:31 80m -4 / -9 ES8JX -12 / 0 4 ✓ Full exchange observed
10-04 18:23 80m +1 / -1 OM3RP +7 / +3 5 ✓ Full exchange observed
10-04 18:17 80m -4 / - M7FBY - / -25 4 ✓ Closing fragment
10-04 18:12 80m -8 / -14 TF4M -16 / -15 4 ✓ Full exchange observed
10-04 18:09 80m +2 / -8 IZ8KVW -6 / -11 5 ✓ Full exchange observed
10-04 17:14 80m +4 / -7 R2AL +14 / +3 7 ✓ Full exchange observed
10-04 17:13 80m +6 / -10 HB9CYN -6 / 0 3 ✓ 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
170600  -4 1587  R7DX DO4SO -09
170615  +5 1383  DO4SO R7DX R-10
170630  -3 1588  R7DX DO4SO RRR
170645  -3 1383  DO4SO R7DX 73
172415 +11 2715  DO4SO DK5RL +05
172430  +2 2715  DK5RL DO4SO R-08
172445  +6 2715  DO4SO DK5RL RR73
172600 -17 1306  CQ DO4SO JN59 (x3)
152815 -12 1581  R6AR DO4SO JN59
153015  -7 1862  CQ DO4SO JN59
153030  +3  825  DO4SO DK7ZT +03
153045  -5 1864  DK7ZT DO4SO R+19
153100  +9  826  DO4SO DK7ZT RR73
160m 
UTC    dB Audio  Message
151245 -24 1983  PA3FR DO4SO JN59 (x3)
10m 
UTC    dB Audio  Message
130030 -24 1838  DO4SO RA9LL RR73

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

FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee