DF3RD — 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: JO43

Receiver-side FT8 activity involving DF3RD, decoded by SO8OO in southeastern Poland. 697 FT8 messages attributed to this token as transmitter, on 60m, 40m, 20m, 10m, across 64 UTC dates in the available aggregate history. Observed between 2026-06-06 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 697 FT8 messages attributed to DF3RD as the transmitting token by decoded message structure across 64 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (68%), followed by 40 m (23%) and 10 m (8%). Most decodes (69%) fell within the six-hour window 07:00-13:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -13 dB.

Overview

697
Messages attributed
64
UTC dates decoded
171
Active 15-min windows
-13 dB
Estimated median S/N

Bands

60m · 8 40m · 160 20m · 473 10m · 56
First attributed message: 2026-06-06
Last attributed message: 2026-10-22 08:37 UTC

Observed FT8 message patterns

Attributed sample
697 messages
Active dates
64 UTC dates
Estimated median S/N
-13 dB
Estimated 10th-90th percentile
-18 to -6 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 185, moderate (-15 to -9 dB) 387, strong (≥ -8 dB) 125.

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 DF3RD 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 DF3RD

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
JO43 · 534 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
964 km (approx.)
Last such locator decoded
2026-10-22 08:14 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 UTCBandDF3RD S/NCounterpartCounterpart S/NMsgsCapture
10-22 08:36 40m -16 / -10 DG3YEV -4 / - 4 ✓ Closing observed
10-21 17:39 40m -4 / - DK1ZB - / -15 2 Partial capture
10-19 20:42 40m -14 / -12 F1HSY -20 / -9 3 ✓ Full exchange observed
10-19 20:37 40m - / -14 RN6HK -4 / - 3 ✓ Closing fragment
10-13 19:02 40m -10 / - UX7QG - / -13 2 ✓ Closing fragment
10-11 17:46 40m -9 / -18 F4LSG -17 / -5 4 ✓ Full exchange observed
10-11 17:35 40m -6 / - F4LSG -12 / -10 15 ✓ Closing observed
10-11 05:10 40m - / -10 UC6D +4 / - 2 Partial capture
10-11 05:08 40m - / -8 IK2SND -14 / - 2 ✓ Closing fragment
09-28 06:48 40m -16 / - EA1AEC - / -16 2 ✓ Closing fragment
09-28 06:44 40m -17 / - ON8WR - / -15 4 ✓ Closing fragment
09-20 19:12 40m - / - M8FQT -1 / - 8 Partial capture
09-20 19:12 40m -16 / -15 F4NFM -6 / -18 7 ✓ Full exchange observed
09-19 21:10 40m -12 / - TA3NK -6 / -13 6 ✓ Closing observed
09-19 21:04 40m -18 / - SV2IQC -13 / -6 3 ✓ Closing observed
09-19 21:04 40m -13 / - LZ936BA - / -15 3 Partial capture
09-02 21:02 40m -14 / -13 M0SWP -20 / -7 4 ✓ Full exchange observed
08-31 12:26 20m -12 / - KE8WWN - / - 3 Partial capture
08-31 12:22 20m -14 / - ER1CW - / - 2 Partial capture
08-31 12:19 20m -11 / -18 F4NGK -6 / -10 3 ✓ Full exchange observed
08-31 12:00 20m -17 / -7 F1IQH -1 / -2 4 ✓ Full exchange observed
08-31 11:10 20m -15 / - <...> - / 0 2 Partial capture
08-31 11:03 20m - / +8 DL1DVE/P -5 / - 2 Partial capture
08-31 10:43 20m - / -14 IK4LZH +15 / - 3 ✓ Closing fragment
08-29 16:16 40m -18 / - GB0SL - / -5 2 Partial capture
08-29 16:05 40m -17 / - IU3VGK -17 / - 2 ✓ Closing observed
08-28 09:37 10m - / -2 IZ2FOS -9 / - 5 ✓ Closing fragment
08-28 09:34 10m - / +1 F1PBZ 0 / - 2 ✓ Closing fragment
08-27 07:26 20m - / +3 TA3F -13 / - 2 Partial capture
08-25 08:15 20m -15 / - VJ6X - / - 3 Partial capture
08-25 08:06 20m -13 / - CO6HZ - / - 3 Partial capture
08-25 07:56 20m -15 / -4 IK2EBP -10 / -6 5 ✓ Full exchange observed
08-24 10:37 20m -11 / - SP5SE - / -11 5 Partial capture
08-24 10:31 20m -12 / - SP6ACH - / -1 2 ✓ Closing fragment
08-24 10:25 20m -14 / - UA3SCU - / -11 2 ✓ Closing fragment
08-24 10:22 20m -12 / -17 IK4LZH +13 / - 4 ✓ Closing observed
08-24 10:06 20m -10 / - R9FDM - / -13 2 ✓ Closing fragment
08-24 09:00 20m -8 / -17 DH2RL +8 / -7 5 ✓ Full exchange observed
08-22 09:30 10m -12 / - SM5MEK - / -5 2 ✓ Closing fragment
08-22 09:29 10m - / - DN9ETS -14 / - 2 Partial capture
08-22 09:18 10m -12 / - SH0JPO - / -20 2 ✓ Closing fragment
08-17 07:22 20m - / - F4BNZ -14 / - 2 ✓ Closing fragment
08-17 07:06 20m - / -2 MI0NWA -8 / - 3 ✓ Closing fragment
08-16 09:36 10m - / -1 M0BEW -3 / - 2 ✓ Closing fragment
08-16 08:41 20m -13 / +6 RA3P -4 / - 4 ✓ Closing observed
08-14 20:02 20m -14 / - F4LCB - / -12 2 ✓ Closing fragment
08-11 10:44 20m - / -21 IU5TTL -13 / - 2 Partial capture
08-08 16:52 20m -20 / - UR5XEJ - / -9 5 Partial capture
08-07 08:57 20m - / -5 M9KJY -23 / - 2 ✓ Closing fragment
08-07 08:52 20m -10 / - GM3DRA - / - 2 Partial capture

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
174645  -4  278  CQ DF3RD JO43 (x3)
175015 -11  278  IT9LPO DF3RD R-16
080545 -18  229  US7KC DF3RD RR73
081015 -19  230  CQ DF3RD JO43                         a1
081115 -18  230  GW6OHV DF3RD RR73
081345 -18  229  CQ DF3RD JO43                         a1 (x3)
081545 -18  229  EC3A DF3RD 73
083630  -1 1478  DF3RD DG3YEV JN68 (x2)
083715 -16  229  DG3YEV DF3RD RR73
083730  -5 1478  DF3RD DG3YEV 73
20m 
UTC    dB Audio  Message
120500 -13  257  CQ DF3RD JO43 (x7)
121900  -4 1938  DF3RD F4NGK -18
121915 -11  256  F4NGK DF3RD R-10
121930  -8 1938  DF3RD F4NGK RR73
122215 -15  256  ER1CW DF3RD JO43 (x2)
122600 -12  256  KE8WWN DF3RD JO43 (x3)
10m 
UTC    dB Audio  Message
091645 -15  257  CQ DF3RD JO43
091815 -12  257  SH0JPO DF3RD -20 (x2)
092645 -14  256  CQ DF3RD JO43                         a1
092900 -13  714  DF3RD DN9ETS JO41 (x2)
093015 -11  256  SM5MEK DF3RD -05 (x2)
093415  +0 2636  DF3RD F1PBZ +01 (x2)
093745 -10 2331  DF3RD IZ2FOS JN55 (x5)

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