DB4SCW — 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 DB4SCW, decoded by SO8OO in southeastern Poland. 83 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, across 8 UTC dates in the available aggregate history. Observed between 2026-06-12 and 2026-10-16.

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 83 FT8 messages attributed to DB4SCW as the transmitting token by decoded message structure across 8 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (48%), followed by 40 m (27%) and 160 m (23%). Most decodes (64%) fell within the six-hour window 14:00-20:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -7 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-7 dB

Estimated median S/N

Bands

160m · 19 80m · 40 60m · 1 40m · 22 20m · 1

First attributed message: 2026-06-12
Last attributed message: 2026-10-16 19:08 UTC

Observed FT8 message patterns

Attributed sample: 83 messages
Active dates: 8 UTC dates
Estimated median S/N: -7 dB
Estimated 10th-90th percentile: -15 to +4 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 8, moderate (-15 to -9 dB) 28, strong (≥ -8 dB) 47.

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 DB4SCW in decoded directed-looking exchanges:

F1IQH · France ×2 IZ1HJU · Italy LA9JKA · Norway LY3BRA · Lithuania SP3HDU · Poland DD7EE · Fed. Rep. of Germany DL0HAM · Fed. Rep. of Germany G0RQL · England PA2RO · Netherlands PE2K · Netherlands SP2EOE · Poland SP3AT · Poland

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 DB4SCW

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 · 24 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 920 km (approx.)
Last such locator decoded: 2026-10-16 19:08 UTC

Other locator fields attributed to this token: JO64 (1).

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	DB4SCW S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-16 19:04	40m	0 / -	JE3GRQ	- / -	2	Partial capture
10-16 19:00	40m	-7 / -	SP3AT	- / -4	3	✓ Closing fragment
10-16 17:22	80m	-16 / -	DO2NTC	- / -12	2	✓ Closing fragment
10-16 17:18	80m	- / -7	DB3OI	+2 / -	2	✓ Closing fragment
10-16 17:14	80m	-11 / -15	HA1RJ	+20 / 0	5	Partial capture
10-16 16:52	80m	- / -3	DL6AUK	+2 / -	2	✓ Closing fragment
10-16 16:46	80m	-16 / -4	DJ3HW	-2 / -	4	✓ Closing observed
09-27 03:30	80m	+4 / -	EB3DIY	- / -15	3	Partial capture
09-27 03:25	80m	-2 / -	DH1HF	- / -4	2	✓ Closing fragment
09-27 03:25	80m	- / -3	GM6URC	-14 / -	3	Partial capture
09-27 03:24	160m	- / -5	DF2NV	+6 / -	2	Partial capture
09-27 03:23	80m	+4 / -	DL1VVQ	+4 / 0	4	✓ Closing observed
09-27 03:23	80m	0 / -4	DK8HC/P	-12 / +5	6	✓ Full exchange observed
09-27 03:20	160m	+6 / -	IZ1HJU	- / -16	3	✓ Closing fragment
09-27 03:18	160m	+5 / -	LY3BRA	+12 / -11	4	✓ Closing observed
09-27 03:16	160m	-6 / -9	LA9JKA	-6 / +2	5	✓ Full exchange observed
09-27 03:15	160m	0 / -4	SP3HDU	+1 / +3	5	✓ Full exchange observed
09-27 03:13	160m	-6 / -20	F1IQH	-14 / -9	5	✓ Full exchange observed
09-27 03:12	160m	-7 / 0	HA5AO	+1 / -	5	Partial capture
09-22 14:36	40m	-8 / -	DL8LRZ	-2 / +2	4	Partial capture
09-22 14:35	40m	-4 / -	G0RQL	- / -2	2	✓ Closing fragment
09-22 14:34	40m	-11 / +1	DL0HAM	+13 / -	5	✓ Full exchange observed
09-22 14:32	40m	-4 / -6	DD7EE	-3 / -	7	✓ Full exchange observed
09-22 14:32	40m	-6 / -13	F1IQH	-14 / -2	4	✓ Full exchange observed
09-19 09:02	40m	- / -2	PA2RO	-16 / -	3	✓ Closing fragment
08-03 19:45	80m	- / -	SQ9WDR	+16 / -	2	Partial capture
08-03 19:27	80m	-6 / -10	SQ2BXI	+20 / -	5	✓ Full exchange observed
08-03 19:25	80m	-17 / +6	DL2RBJ	-14 / -8	4	✓ Full exchange observed
08-03 19:24	80m	-13 / 0	DK1GP	-17 / -10	3	✓ Full exchange observed
08-03 19:23	80m	-12 / -	G0RIF	- / -18	2	✓ Closing fragment
08-03 19:20	80m	-10 / -	M0LTA	-13 / -7	5	✓ Closing observed
08-03 19:19	80m	-12 / -	G7SLB	- / +4	4	✓ Closing fragment
08-03 19:16	80m	-11 / -15	SV9MBH	-7 / -17	6	✓ Full exchange observed
07-25 19:59	60m	- / -	F5RAV	-8 / -	4	Partial capture
07-25 19:58	60m	-11 / -1	DK1TBL	-10 / -	3	✓ Closing observed

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
143445 -16  549  DL0HAM DB4SCW R+18
143500 +14  795  DB4SCW DL0HAM RR73
143515  -6  549  DL0HAM DB4SCW 73
143545  -6  549  G0RQL DB4SCW -02 (x2)
143630  +2 2477  DB4SCW DL8LRZ JO61
143645  -8  549  DL8LRZ DB4SCW +02
143700  -4 2477  DB4SCW DL8LRZ JO61 (x2)
190015  -6 1250  SP3AT DB4SCW JN49 (x3)
190415  +2  654  JE3GRQ DB4SCW JN49 (x3)

80m

UTC    dB Audio  Message
164700  -3 1127  DB4SCW DJ3HW RR73
164715 -17  685  DJ3HW DB4SCW 73
165130 -24  687  R3HH DB4SCW JN49
165215  +4  418  DB4SCW DL6AUK -03 (x2)
171445 +16  512  DB4SCW HA1RJ -15
171500 -11  596  HA1RJ DB4SCW R+00
171515 +15  512  DB4SCW HA1RJ -15 (x3)
171700  -8  596  DG4BZ DB4SCW 73
171800  +4 1582  DB4SCW DB3OI -07 (x2)
172200 -17  595  DO2NTC DB4SCW R-12 (x2)

160m

UTC    dB Audio  Message
031700  -7  752  LA9JKA DB4SCW +02
031715  -6 1624  DB4SCW LA9JKA R-09
031730  -4  752  LA9JKA DB4SCW RR73
031745  -7 1624  DB4SCW LA9JKA 73
031815  +6  752  LY3BRA DB4SCW JN49 (x2)
031900 +12 1519  DB4SCW LY3BRA RR73
031915  +6  752  LY3BRA DB4SCW 73
032000  +4  752  IZ1HJU DB4SCW JN49 (x3)
032130  +5  753  CQ DB4SCW JN49 (x2)
032415  +9  300  DB4SCW DF2NV -05 (x2)

60m

UTC    dB Audio  Message
195800 -10 1517  DB4SCW DK1TBL -01 (x2)
195845 -11  678  DK1TBL DB4SCW 73
195900  +6  627  DB4SCW OE6MDF -03
195900  -9 1084  DB4SCW F5RAV JN09 (x4)

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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