DL1SIM — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Fed. Rep. of Germany Most frequent locator attributed to this token: JN48

Receiver-side FT8 activity involving DL1SIM, decoded by SO8OO in southeastern Poland. 232 FT8 messages attributed to this token as transmitter, on 60m, 40m, 20m, 10m, across 10 UTC dates in the available aggregate history. Observed between 2026-07-25 and 2026-08-30.

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 232 FT8 messages attributed to DL1SIM as the transmitting token by decoded message structure across 10 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (89%), followed by 40 m (8%) and 10 m (2%). Most decodes (56%) fell within the six-hour window 18:00-00:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -8 dB.

Overview

232
Messages attributed
10
UTC dates decoded
42
Active 15-min windows
-8 dB
Estimated median S/N

Bands

60m · 3 40m · 19 20m · 206 10m · 4
First attributed message: 2026-07-25
Last attributed message: 2026-08-30 14:58 UTC

Observed FT8 message patterns

Attributed sample
232 messages
Active dates
10 UTC dates
Estimated median S/N
-8 dB
Estimated 10th-90th percentile
-14 to -3 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 14, moderate (-15 to -9 dB) 88, strong (≥ -8 dB) 130.

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 DL1SIM 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 DL1SIM

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
JN48 · 138 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
941 km (approx.)
Last such locator decoded
2026-08-30 14:58 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 UTCBandDL1SIM S/NCounterpartCounterpart S/NMsgsCapture
09-17 13:10 40m - / -21 PA3CPS -2 / - 3 ✓ Closing fragment
09-17 12:49 40m - / -1 OE8PIT -5 / - 3 Partial capture
09-16 19:12 60m - / -20 OK1BN +12 / - 4 Partial capture
09-16 19:02 80m - / -17 OK1UOZ +18 / - 3 ✓ Closing fragment
08-30 14:54 20m -6 / - HA5IHJ - / - 2 Partial capture
08-30 11:38 20m -6 / -16 PD1HPB -4 / -16 11 ✓ Full exchange observed
08-30 11:30 20m -5 / -9 IQ4JO -11 / 0 4 ✓ Full exchange observed
08-30 09:25 20m - / -19 E75W -12 / - 3 ✓ Closing fragment
08-29 20:25 80m - / - PE1NPS -4 / - 4 Partial capture
08-29 19:09 20m - / - KE4EB -5 / - 12 Partial capture
08-29 13:46 20m - / +3 F1PSX -6 / - 5 ✓ Closing fragment
08-29 10:13 20m -8 / - RW6HP -16 / -17 4 Partial capture
08-28 16:18 20m - / - TA4SSK +5 / - 3 Partial capture
08-28 12:52 20m - / -14 F5PBG -10 / - 3 ✓ Closing fragment
08-28 08:07 20m - / -16 EB3JT -10 / - 7 ✓ Closing fragment
08-27 23:15 20m -9 / - 7Z1BQ - / - 2 Partial capture
08-27 23:12 20m -10 / - XE1TZP - / - 2 Partial capture
08-27 22:47 20m -9 / - TJ1GD - / - 2 Partial capture
08-27 22:46 20m -8 / - 7Z1BQ - / - 2 Partial capture
08-27 22:45 20m -2 / - WB2IMB - / -4 2 ✓ Closing fragment
08-27 22:42 20m -8 / - 8P6GE - / - 3 Partial capture
08-27 22:39 20m -4 / - KF9UG - / -12 4 ✓ Closing fragment
08-27 22:37 20m -4 / -14 WD4OBP -12 / -8 7 ✓ Full exchange observed
08-27 22:30 20m -10 / -12 V31DL -6 / -4 5 ✓ Full exchange observed
08-27 22:29 20m -8 / - VE3ARF - / - 2 Partial capture
08-27 22:27 20m -6 / - KY2J - / - 2 Partial capture
08-27 22:24 20m -6 / - BU2FW -19 / -12 6 ✓ Closing observed
08-27 22:22 20m -8 / - BA7LUI - / -13 3 Partial capture
08-27 22:18 20m -4 / - KA8YGL - / +8 2 ✓ Closing fragment
08-27 22:16 20m -6 / - W8OBX - / -17 2 ✓ Closing fragment
08-27 22:12 20m -6 / - TJ1GD - / - 3 Partial capture
08-27 21:40 40m -14 / -11 PA0APR -18 / -6 4 ✓ Full exchange observed
08-27 21:39 40m -12 / - DL1EDR +6 / -7 6 ✓ Full exchange observed
08-26 20:30 20m -17 / -20 BG4UCZ -18 / - 3 Partial capture
08-26 20:27 20m - / -7 MI7RDK -3 / - 3 Partial capture
08-26 19:59 60m -12 / -12 PE1NPS -12 / - 4 ✓ Full exchange observed
08-26 19:53 60m - / -4 9A4ZM +6 / - 3 ✓ Closing fragment
08-26 19:51 60m - / - DM2HW -13 / - 5 ✓ Closing fragment
08-26 19:51 60m - / -16 LY3W +14 / - 3 ✓ Closing fragment
08-26 19:41 40m -12 / -22 G7LMY -9 / - 7 ✓ Closing observed
08-26 19:39 40m -6 / -10 F1IQH -5 / -12 3 Partial capture
08-26 19:37 40m - / -17 OM3PR +8 / - 2 Partial capture
08-26 19:15 20m -12 / -15 RI1FJL -8 / +4 3 Partial capture
08-26 19:10 20m - / -17 TF1A -14 / - 2 ✓ Closing fragment
08-26 19:07 20m -9 / - EX7DY - / - 2 Partial capture
08-25 22:50 20m - / -14 W3FOX -4 / - 2 ✓ Closing fragment
08-25 22:37 20m - / -14 VO1ANJ -6 / - 2 ✓ Closing fragment
08-25 19:04 60m - / - SQ9LOJ -9 / - 2 Partial capture
08-25 19:02 60m - / -5 OM5JG -2 / - 2 ✓ Closing fragment
08-25 18:59 60m - / -13 DK5WL -12 / - 3 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
214015 -15 1254  DL1SIM PA0APR R-11
214015  +8  890  DL1SIM DL1EDR JO41
214030 -15  888  PA0APR DL1SIM RR73
214045 -20 1254  DL1SIM PA0APR 73
214045  +9  890  DL1SIM DL1EDR JO41
214100 -12  888  DL1EDR DL1SIM -07
214115  +8  890  DL1SIM DL1EDR R+12 (x2)
124945  -6  342  DL1SIM OE8PIT JN66 (x3)
125415 -18 2173  DL1SIM DK2SW R-18
131015  +0  639  DL1SIM PA3CPS JO32 (x3)
60m 
UTC    dB Audio  Message
195200 +13  745  DL1SIM LY3W 73
195200 -17 1530  DL1SIM DM2HW JN59 (x3)
195300  +7  629  DL1SIM 9A4ZM JN86 (x3)
195930 -11 1631  DL1SIM PE1NPS JO22
195945 -12  633  PE1NPS DL1SIM +11
200000 -11 1631  DL1SIM PE1NPS R-12 (x2)
191200 +11 2296  DL1SIM OK1BN JO70 (x4)
80m 
UTC    dB Audio  Message
202500  -4 2483  DL1SIM PE1NPS JO22 (x4)
190200 +19  878  DL1SIM OK1UOZ -17 (x3)
20m 
UTC    dB Audio  Message
113330  -6 1360  DL1SIM SA3SHN R+01
113800  -4  732  DL1SIM PD1HPB JO22 (x9)
114215  -5  731  PD1HPB DL1SIM -16 (x2)
145430  -6  771  HA5IHJ DL1SIM JN48 (x2)
145800  -6  771  CQ DL1SIM JN48
10m 
UTC    dB Audio  Message
110600  +6 2309  DL1SIM ES2AJ -25
110815 -24 1588  HG8LXL DL1SIM +15
111915 -24 1589  YO9PH DL1SIM R-02
111930 -12 2309  DL1SIM ES2AJ -20
112415 -17 2310  CQ DL1SIM JN48 (x2)
145115  -8 1269  DL1SIM LZ1ZF RR73
150930 -15 1933  DL1SIM SV2JAO -12
102830  -7 2219  DL1SIM LZ1JZ -08 (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.

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