DJ7TW — 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: JN49

Receiver-side FT8 activity involving DJ7TW, decoded by SO8OO in southeastern Poland. 75 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, 10m, across 13 UTC dates in the available aggregate history. Observed between 2026-06-10 and 2026-11-04.

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 75 FT8 messages attributed to DJ7TW as the transmitting token by decoded message structure across 13 UTC dates in the available aggregate history. The largest monitored-band total was 60 m (48%), followed by 40 m (25%) and 20 m (12%). Several six-hour UTC windows tied for the largest share (97%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (95%); the estimated median was +2 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

+2 dB

Estimated median S/N

Bands

80m · 8 60m · 36 40m · 19 20m · 9 10m · 3

First attributed message: 2026-06-10
Last attributed message: 2026-11-04 19:23 UTC

Observed FT8 message patterns

Attributed sample: 75 messages
Active dates: 13 UTC dates
Estimated median S/N: +2 dB
Estimated 10th-90th percentile: -5 to +7 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 1, moderate (-15 to -9 dB) 3, strong (≥ -8 dB) 71.

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 DJ7TW in decoded directed-looking exchanges:

DL6MRM · Fed. Rep. of Germany F6FHZ · France HG5OGI · Hungary OZ9FF · Denmark ZL2NU · New Zealand DF0WE · Fed. Rep. of Germany DG0OAT · Fed. Rep. of Germany DK5WO · Fed. Rep. of Germany ER3UA · Moldova F4HSB · France IK0BAL · Italy IK4CBO · Italy

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 DJ7TW

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: JN49 · 28 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 920 km (approx.)
Last such locator decoded: 2026-11-04 19:09 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	DJ7TW S/N	Counterpart	Counterpart S/N	Msgs	Capture
11-04 19:23	80m	-10 / -	9H5SN	- / -17	2	✓ Closing fragment
11-04 19:09	60m	0 / -8	DF0WE	+2 / -13	7	✓ Full exchange observed
11-04 19:07	60m	+4 / -	SP2EWQ	- / -2	2	Partial capture
11-04 19:04	60m	+1 / +9	DG0OAT	+3 / -18	5	✓ Full exchange observed
11-04 19:03	60m	0 / -	DF40ABF	- / -1	2	Partial capture
10-30 18:28	60m	0 / -5	YO9HP	+5 / -4	5	✓ Full exchange observed
10-30 18:28	60m	+3 / -	DK5WO	-15 / -	3	✓ Closing observed
10-30 18:26	60m	0 / -	6W/IK2HKT	- / +2	2	Partial capture
10-27 19:13	60m	-5 / +10	LZ26IPA	-15 / -6	2	Partial capture
10-27 19:10	60m	+2 / -	ER3UA	- / -8	3	✓ Closing fragment
10-14 18:11	40m	+4 / -	DL6MRM	-2 / +4	6	✓ Full exchange observed
10-14 18:04	60m	+5 / -	DL3RSK	- / -	3	Partial capture
10-07 18:57	40m	+6 / -	DB6LL/P	- / -15	2	Partial capture
09-30 18:37	60m	+2 / -	TM47CDXC	- / -5	2	Partial capture
09-28 18:12	60m	+5 / -	LZ1VDK	-23 / -19	4	✓ Closing observed
09-28 18:10	60m	+6 / -	PE1NLQ	-20 / -6	3	✓ Closing observed
09-28 18:09	60m	+6 / -	IK4CBO	-7 / +2	6	✓ Full exchange observed
09-28 18:08	60m	+6 / 0	IK0BAL	-4 / 0	4	✓ Full exchange observed
09-28 18:01	40m	+2 / -	F6FHZ	-8 / -7	3	✓ Closing observed
09-28 17:59	40m	+6 / -	ZL2NU	- / -22	3	✓ Closing fragment
09-28 17:58	40m	0 / -15	OZ9FF	-14 / +2	5	✓ Full exchange observed
09-28 17:12	80m	+1 / -	SP100PKP	- / -4	2	Partial capture
09-11 17:59	80m	+3 / -1	DO1RWM	0 / -7	6	✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
175900  +5 2575  DO1RWM DJ7TW JN49 (x2)
175945  +1  440  DJ7TW DO1RWM -01
180000  -1 2575  DO1RWM DJ7TW R-07
180015  -2  440  DJ7TW DO1RWM RR73
180030  +2 2575  DO1RWM DJ7TW 73
180115  +4 2164  DJ7TW EU2NS KO44
171245  +2 2575  SP100PKP DJ7TW JN49
171300  -7  529  DJ7TW PE50SCOUT -10
171315  +0 2575  SP100PKP DJ7TW R-04
192300 -11 1417  9H5SN DJ7TW R-17 (x2)

60m

UTC    dB Audio  Message
190400  +1 1633  DF40ABF DJ7TW R-01
190445  +3 2695  DJ7TW DG0OAT JO62
190500  +0 1632  DG0OAT DJ7TW -18
190515  +3 2696  DJ7TW DG0OAT R+09
190530  +2 1632  DG0OAT DJ7TW RR73
190545  +4 2696  DJ7TW DG0OAT 73
190730  +4 1632  SP2EWQ DJ7TW -02 (x2)
190930  +4 1631  DF0WE DJ7TW JN49
190945  +5  535  DJ7TW DF0WE -08
191000  +0 1631  DF0WE DJ7TW R-13
191015  +1  536  DJ7TW DF0WE -08
191030  -2 1631  DF0WE DJ7TW R-13
191045  +1  536  DJ7TW DF0WE RR73
191100  -2 1631  DF0WE DJ7TW 73

40m

UTC    dB Audio  Message
180215  -8 2319  DJ7TW F6FHZ 73
185445  +7 2525  RL2F DJ7TW JN49
185700  +5 2527  DF8XC DJ7TW JN49
185730  +7 2527  DB6LL/P DJ7TW JN49 (x2)
190215 +13 2530  HG5OGI DJ7TW 73
181015  +2 2453  DM2DS/P DJ7TW JN49
181100  +1 2453  DL6MRM DJ7TW JN49 (x2)
181145  -7  865  DJ7TW DL6MRM +12
181200  +7 2453  DL6MRM DJ7TW R+04
181215  +2  865  DJ7TW DL6MRM RR73
181230  +0 2453  DL6MRM DJ7TW 73
181545 -17 1456  DJ7TW PD0TH -07 (x2)

20m

UTC    dB Audio  Message
173200  +2 1912  CS8ABF DJ7TW JN49

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

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