DF40ABF — 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

Receiver-side FT8 activity involving DF40ABF, decoded by SO8OO in southeastern Poland. 1,875 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, 10m, across 24 UTC dates in the available aggregate history. Observed between 2026-06-09 and 2026-10-22.

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 1,875 FT8 messages attributed to DF40ABF as the transmitting token by decoded message structure across 24 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (47%), followed by 60 m (22%) and 40 m (20%). Most decodes (72%) fell within the six-hour window 03:00-09:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -6.8 dB.

Overview

1,875
Messages attributed
24
UTC dates decoded
141
Active 15-min windows
-6.8 dB
Estimated median S/N

Bands

80m · 889 60m · 406 40m · 373 20m · 131 10m · 76
First attributed message: 2026-06-09
Last attributed message: 2026-10-22 07:14 UTC

Observed FT8 message patterns

Attributed sample
1,875 messages
Active dates
24 UTC dates
Estimated median S/N
-6.8 dB
Estimated 10th-90th percentile
-17 to +4 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 254, moderate (-15 to -9 dB) 514, strong (≥ -8 dB) 1,107.

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 DF40ABF 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.

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 UTCBandDF40ABF S/NCounterpartCounterpart S/NMsgsCapture
10-23 01:55 60m - / -14 UT7QF -24 / - 2 Partial capture
10-22 20:29 60m - / -15 EA3HZE -20 / - 2 ✓ Closing fragment
10-22 18:21 40m - / -12 ON7DE -5 / - 5 Partial capture
10-22 12:50 40m - / -3 YL3KZ 0 / - 2 Partial capture
10-22 07:05 80m -14 / - <...> - / - 2 ✓ Closing fragment
10-22 07:00 80m -14 / - <...> +10 / - 2 ✓ Closing fragment
10-22 06:56 80m -13 / - <...> +1 / - 2 ✓ Closing fragment
10-22 06:43 40m -4 / - <...> -15 / - 8 ✓ Closing fragment
10-22 06:39 40m +3 / - F6CBA - / +1 3 ✓ Closing fragment
10-22 06:16 60m 0 / -9 OV9A -10 / -4 2 Partial capture
10-22 06:16 60m -4 / - <...> -9 / - 5 ✓ Closing fragment
10-22 06:11 60m -16 / - <...> -4 / - 3 ✓ Closing fragment
10-22 06:11 60m -14 / +9 SP3HCA -6 / +2 3 Partial capture
10-22 06:08 60m +1 / - IK2TPX -21 / - 2 Partial capture
10-22 06:06 60m -3 / - <...> -23 / - 4 ✓ Closing fragment
10-22 05:43 60m -3 / - <...> +3 / - 4 ✓ Closing fragment
10-22 05:42 60m -12 / - DL8RBL - / -20 4 Partial capture
10-22 05:37 60m -4 / - <...> -13 / - 3 ✓ Closing fragment
10-22 05:37 60m -7 / -9 EA1HTF -20 / +3 3 Partial capture
10-20 05:28 40m - / - R3PE -16 / - 7 Partial capture
10-20 05:13 40m -6 / - <...> -9 / - 2 ✓ Closing fragment
10-20 04:58 40m 0 / - UB3DQR - / -6 3 Partial capture
10-19 06:37 80m -5 / - <...> -4 / - 2 ✓ Closing fragment
10-19 06:31 80m -8 / - <...> -14 / - 3 ✓ Closing fragment
10-19 06:06 60m - / -7 DL1JEL +2 / - 3 Partial capture
10-19 05:59 80m - / -1 DJ7M +9 / - 2 Partial capture
10-19 05:47 80m - / - F1PSX -14 / - 6 Partial capture
10-19 05:46 80m - / - PA3CPS 0 / - 2 Partial capture
10-19 05:11 60m - / -15 EB1LA -8 / - 3 Partial capture
10-19 04:59 80m - / - DO1OAS 0 / - 10 Partial capture
10-19 04:54 80m +4 / - TF3VG - / -13 2 Partial capture
10-19 04:52 80m +2 / -18 DL7UHD -11 / -11 4 Partial capture
10-19 04:52 80m +2 / - <...> -5 / - 7 ✓ Closing fragment
10-19 04:41 80m +7 / - <...> - / - 3 ✓ Closing fragment
10-19 04:35 80m +7 / +9 DO1OAS -1 / -6 29 Partial capture
10-19 04:33 80m +6 / - <...> - / - 2 ✓ Closing fragment
10-19 04:30 80m +2 / -11 DO2KST -22 / -24 3 Partial capture
10-19 04:29 80m +4 / - <...> -20 / - 3 ✓ Closing fragment
10-19 04:28 80m +5 / +6 G8TJQ +4 / - 4 ✓ Full exchange observed
10-19 04:25 60m -2 / +6 F4GAJ -8 / - 2 Partial capture
10-19 04:23 60m -2 / - <...> -5 / - 5 ✓ Closing fragment
10-19 04:20 60m +4 / -13 SP5EXA -7 / +9 4 Partial capture
10-19 04:19 60m +3 / - <...> -6 / - 4 ✓ Closing fragment
10-08 03:51 40m - / -17 RA6ABC +2 / - 2 Partial capture
10-08 02:23 80m - / -11 RN1CW -6 / - 2 Partial capture
10-07 21:55 80m - / -8 IU5HIU -18 / - 2 Partial capture
10-07 19:11 40m - / -21 DM5KN -8 / - 5 Partial capture
10-07 19:06 80m - / -10 RW2Z -8 / - 2 Partial capture
10-07 18:13 80m - / -16 R7KM +2 / - 2 Partial capture
10-07 07:29 40m - / +5 F1HFP -11 / - 2 Partial capture

Recent FT8 messages decoded at SO8OO

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

80m 
UTC    dB Audio  Message
070830 -23 1606  CQ DF40ABF (x12)
181315  -8 2465  DF40ABF PA1RGX JO32
201830 +22 2470  DF40ABF HA7XL JN97
021515  -2 2465  DF40ABF OH3XR KP11
60m 
UTC    dB Audio  Message
061515 -12 1631  CQ DF40ABF (x2)
061615  +2  416  <...> DF40ABF
061630 -10  415  DF40ABF OV9A -09
061645  +0  416  OV9A DF40ABF R-04
061700  -9  415  DF40ABF <...> RR73
061715  -2  416  <...> DF40ABF 73 (x3)
202945 -20 1917  DF40ABF EA3HZE -15 (x2)
203700 -10  993  DF40ABF EH6DSY -05
015015  +6 1155  DF40ABF SM3EVR JP82
015515 -24 1910  DF40ABF UT7QF KN77 (x2)
40m 
UTC    dB Audio  Message
064645 -15 1042  DF40ABF <...> RR73
064730  +1 2474  <...> DF40ABF (x2)
064830  +3 2474  OM2IB DF40ABF R+13
064900  +3 2474  <...> DF40ABF 73 (x2)
065015  -7 1787  OE4BHF DF40ABF R+03
065045  -9 1787  <...> DF40ABF 73
125045  -4 2327  DF40ABF YL3KZ KO16 (x2)
182145  -8 1785  DF40ABF ON7DE JO20 (x5)
20m 
UTC    dB Audio  Message
072345  -4 1412  DF40ABF R7OV R-14 (x3)
073130  +3 1401  DF40ABF TA2EJ KM59 (x4)
072445  +0 1114  CQ DF40ABF
072515  -6 1109  S51CE DF40ABF +00
072630 -12 1114  DF40ABF TA2EE KM69 (x6)
10m 
UTC    dB Audio  Message
064545 -20 1372  CQ DF40ABF
064615 -15 1371  DL3MIB DF40ABF -24 (x2)
064745 -16 1371  <...> DF40ABF RR73
064815 -20 1371  CQ DF40ABF
064845 -20 1371  <...> DF40ABF RR73 (x3)
062645 -15 1360  DF40ABF <...> 73
063100 -20 1361  <...> DF40ABF RR73
063130 -19 1361  CQ DF40ABF (x4)
063345 -13 2138  DF40ABF <...> 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