DB7SO — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Fed. Rep. of Germany Most frequent locator attributed to this token: JN58

Receiver-side FT8 activity involving DB7SO, decoded by SO8OO in southeastern Poland. 120 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 12 UTC dates in the available aggregate history. Observed between 2026-07-07 and 2026-09-02.

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 120 FT8 messages attributed to DB7SO as the transmitting token by decoded message structure across 12 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (63%), followed by 40 m (32%) and 20 m (3%). Several six-hour UTC windows tied for the largest share (86%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -12 dB.

Overview

120
Messages attributed
12
UTC dates decoded
22
Active 15-min windows
-12 dB
Estimated median S/N

Bands

80m · 75 40m · 38 20m · 4 10m · 3
First attributed message: 2026-07-07
Last attributed message: 2026-09-02 05:47 UTC

Observed FT8 message patterns

Attributed sample
120 messages
Active dates
12 UTC dates
Estimated median S/N
-12 dB
Estimated 10th-90th percentile
-21 to -5 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 44, moderate (-15 to -9 dB) 42, strong (≥ -8 dB) 34.

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 DB7SO 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 DB7SO

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
JN58 · 37 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
799 km (approx.)
Last such locator decoded
2026-09-02 05:47 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 UTCBandDB7SO S/NCounterpartCounterpart S/NMsgsCapture
09-01 20:20 80m -6 / - RI1FJL - / - 4 Partial capture
09-01 18:38 80m -13 / - RI1FJL - / - 3 Partial capture
08-31 20:52 80m -2 / - SM7TZK - / - 2 Partial capture
08-30 14:25 20m -12 / -17 RI1FJL -6 / -19 3 Partial capture
08-30 13:32 20m -6 / - RI1FJL - / - 2 Partial capture
08-28 19:19 80m -19 / -15 DK8HC/P -11 / -2 7 ✓ Full exchange observed
08-28 19:16 80m -21 / -6 OK1UOZ +8 / - 7 ✓ Full exchange observed
08-27 18:16 40m -10 / - UK8OM - / -9 7 Partial capture
08-27 18:12 80m -4 / - 5P5Z - / -13 7 Partial capture
08-27 18:10 80m - / -2 DG6ITP +7 / - 2 ✓ Closing fragment
08-27 18:08 80m -1 / - ER5DX - / -22 2 Partial capture
08-27 18:06 80m -20 / -10 DL2RN -2 / -3 3 ✓ Full exchange observed
08-27 18:01 80m -13 / - RI1FJL - / - 7 Partial capture
08-27 17:52 80m -13 / - RI1FJL - / - 5 Partial capture
08-26 19:58 80m - / -13 DO3LZ -15 / - 2 ✓ Closing fragment
07-23 11:32 10m -10 / - OH6CXP - / -15 3 Partial capture
07-22 20:57 80m - / -7 DL4KSD -7 / - 2 Partial capture
07-22 20:55 80m -8 / - OE6TNO +8 / - 2 ✓ Closing observed
07-22 20:52 80m -2 / -3 HA7TM +14 / - 5 ✓ Full exchange observed
07-22 20:50 80m -8 / -6 DO1NJN -5 / -9 5 ✓ Full exchange observed
07-22 20:45 80m -8 / - SM0JSG - / -19 8 Partial capture
07-22 20:38 80m - / +1 DB70DLRS -4 / - 2 Partial capture
07-22 20:35 80m -8 / - DB70DLRS - / -19 2 Partial capture
07-22 19:19 40m - / -6 <...> -19 / - 3 Partial capture
07-21 20:34 40m -19 / - 8S7DL - / +5 5 ✓ Closing fragment
07-21 20:28 40m -21 / -20 8S7DL -13 / - 4 Partial capture
07-21 20:15 40m -18 / - SM6CCO - / -9 7 Partial capture
07-21 20:07 40m -21 / - JA4FKX - / -9 3 Partial capture
07-21 20:01 40m -17 / - OH2BJU - / -1 6 Partial capture
07-21 19:54 80m - / -13 RA2FU -17 / - 2 ✓ Closing fragment
07-21 19:48 80m - / -6 ES0MVM -8 / - 2 ✓ Closing fragment
07-21 19:45 40m -19 / -20 SM7MDI -8 / - 3 ✓ Closing observed
07-21 19:40 40m - / 0 DK3ME -9 / - 4 ✓ Closing fragment
07-20 20:41 40m -20 / - VJ6X - / -16 2 Partial capture
07-20 20:38 80m - / - DO9BAU +4 / - 4 Partial capture
07-20 20:37 80m - / - DA6WA -24 / - 3 Partial capture
07-20 20:36 80m -8 / -16 OO0O -10 / -11 4 ✓ Full exchange observed
07-20 20:34 80m - / -4 SP1ZMO +3 / - 2 ✓ Closing fragment
07-20 20:23 80m -12 / -9 OH1NBF -2 / -15 11 Partial capture
07-20 16:13 40m - / +2 DL0HAM -5 / - 5 Partial capture
07-09 05:26 40m -21 / - KC2YYF - / -8 3 Partial capture
07-09 05:13 80m -19 / -13 OE8DDX 0 / +7 4 ✓ Full exchange observed
07-09 05:12 80m -15 / -9 DO5OT +4 / -1 4 ✓ Full exchange observed
07-07 20:34 80m -9 / -12 <...> -12 / -10 7 Partial capture

Recent FT8 messages decoded at SO8OO

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

80m 
UTC    dB Audio  Message
192115 -17 1139  DK8HC/P DB7SO 73
192145 -21 1139  CQ DB7SO JN58 (x2)
192715 -24 1139  RI1FJL DB7SO JN58
205215  -5 2710  SM7TZK DB7SO JN58 (x2)
183800 -11 1124  RI1FJL DB7SO JN58 (x7)
054600 -19 1124  CQ DB7SO JN58 (x2)
20m 
UTC    dB Audio  Message
133215  -5 1415  RI1FJL DB7SO JN58 (x2)
142500  -6  421  DB7SO RI1FJL -17
142545 -10 1415  RI1FJL DB7SO R-19 (x2)
40m 
UTC    dB Audio  Message
203530 -20 1393  8S7DL DB7SO +05 (x4)
191915 -20 1338  DB7SO <...> R-06 (x3)
104445 -20 1492  DB7SO HG8LXL R-19
181630  -7 1175  UK8OM DB7SO -09 (x7)
10m 
UTC    dB Audio  Message
113200 -12 2451  OH6CXP DB7SO -15 (x3)

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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