DF1TJ — 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: JN37

Receiver-side FT8 activity involving DF1TJ, decoded by SO8OO in southeastern Poland. 194 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 10 UTC dates in the available aggregate history. Observed between 2026-06-12 and 2026-08-27.

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 194 FT8 messages attributed to DF1TJ 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 (66%), followed by 80 m (18%) and 10 m (12%). Several six-hour UTC windows tied for the largest share (59%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (60%); the estimated median was -6 dB.

Overview

194

Messages attributed

UTC dates decoded

Active 15-min windows

-6 dB

Estimated median S/N

Bands

80m · 35 40m · 6 20m · 129 10m · 24

First attributed message: 2026-06-12
Last attributed message: 2026-08-27 18:34 UTC

Observed FT8 message patterns

Attributed sample: 194 messages
Active dates: 10 UTC dates
Estimated median S/N: -6 dB
Estimated 10th-90th percentile: -15 to +10 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 17, moderate (-15 to -9 dB) 60, strong (≥ -8 dB) 117.

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 DF1TJ in decoded directed-looking exchanges:

DK7UY · Fed. Rep. of Germany DK7ZT · Fed. Rep. of Germany DL8TV · Fed. Rep. of Germany R2EA/P · European Russia YO4NT · Romania

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 DF1TJ

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: JN37 · 152 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,116 km (approx.)
Last such locator decoded: 2026-08-27 18:25 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 UTC	Band	DF1TJ S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-28 17:09	20m	- / -16	RZ3Z/P	+6 / -	2	Partial capture
08-28 16:42	20m	- / -14	<...>	-16 / -	4	Partial capture
08-27 18:32	80m	-4 / -	DK7UY	-12 / -6	4	✓ Closing observed
08-27 18:31	80m	-6 / -	DK7ZT	- / -9	2	✓ Closing fragment
08-27 18:29	80m	- / 0	UA3SCU	-17 / -	2	Partial capture
08-27 18:28	80m	-2 / -11	DL8TV	-11 / -	5	✓ Closing observed
08-27 18:27	80m	0 / 0	DK7UY	-16 / -9	5	Partial capture
08-27 18:26	80m	-5 / -10	YO4NT	+5 / -14	4	✓ Full exchange observed
08-27 18:25	80m	-8 / -	R2EA/P	- / -18	4	✓ Closing fragment
08-26 18:31	80m	-8 / -	R1530IG	- / -	2	Partial capture
08-26 18:28	80m	-5 / -	<...>	- / -	7	Partial capture
08-26 01:21	80m	+5 / -	<...>	- / -	5	Partial capture
08-26 01:18	80m	+7 / -	K4BQP	- / -	2	Partial capture
08-26 01:15	80m	+5 / -	<...>	- / -	7	Partial capture
08-26 00:35	80m	+13 / +7	<...>	0 / -	3	Partial capture
08-25 11:53	20m	-2 / -	R2EA/P	- / -	30	Partial capture

Recent FT8 messages decoded at SO8OO

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

20m

UTC    dB Audio  Message
120730  -8 3146  R2EA/P DF1TJ JN37 (x9)
164200 -17 1616  DF1TJ <...> -14 (x4)
170915  +9  266  DF1TJ RZ3Z/P -16 (x2)

80m

UTC    dB Audio  Message
182845 -18 3116  DF1TJ DK7UY R+00
182915  -7 2039  DF1TJ DL8TV R-11
182915 -15 3117  DF1TJ DK7UY R+00
182930  -2 2121  DL8TV DF1TJ RR73
182945 -15 1072  DF1TJ UA3SCU +00
182945  -9 2039  DF1TJ DL8TV 73
182945 -15 3117  DF1TJ DK7UY R+00
183015 -19 1071  DF1TJ UA3SCU +00
183130 -10 2121  DK7ZT DF1TJ R-09 (x2)
183245 -11 3117  DF1TJ DK7UY JO44
183245 -14 2327  DF1TJ 9A7BB R-05
183315 -12 3117  DF1TJ DK7UY JO44
183330  -7 2120  DK7UY DF1TJ -06 (x2)

40m

UTC    dB Audio  Message
225545  +4 1651  K0DG DF1TJ JN37

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