DL1RB — 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: JO41

Receiver-side FT8 activity involving DL1RB, decoded by SO8OO in southeastern Poland. 990 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, 10m, across 47 UTC dates in the available aggregate history. Observed between 2026-06-15 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 990 FT8 messages attributed to DL1RB as the transmitting token by decoded message structure across 47 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (62%), followed by 60 m (16%) and 40 m (13%). Several six-hour UTC windows tied for the largest share (63%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -9 dB.

Overview

990

Messages attributed

UTC dates decoded

148

Active 15-min windows

-9 dB

Estimated median S/N

Bands

160m · 19 80m · 39 60m · 159 40m · 124 20m · 613 10m · 36

First attributed message: 2026-06-15
Last attributed message: 2026-10-22 21:41 UTC

Observed FT8 message patterns

Attributed sample: 990 messages
Active dates: 47 UTC dates
Estimated median S/N: -9 dB
Estimated 10th-90th percentile: -16 to +2 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 110, moderate (-15 to -9 dB) 394, strong (≥ -8 dB) 486.

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 DL1RB in decoded directed-looking exchanges:

4J3DJ · Azerbaijan DK7ZT · Fed. Rep. of Germany DL7GP · Fed. Rep. of Germany R4FDK · European Russia RA4Y · European Russia RJ3DC · European Russia UA4FKT · European Russia 4X1UF · Israel 5B4ARQ · Cyprus A71XX · Qatar BA3NZ · China BG3NQT · China

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 DL1RB

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: JO41 · 776 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 916 km (approx.)
Last such locator decoded: 2026-10-22 21:38 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	DL1RB S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-22 21:42	80m	- / -	DO8JB	-2 / -	10	Partial capture
10-22 21:42	80m	- / -5	ON1BH	+2 / -	2	Partial capture
10-22 21:40	80m	- / -	DL7ACA	+15 / -	3	Partial capture
10-22 21:40	80m	+10 / +1	US2YW	+3 / -	7	✓ Full exchange observed
10-22 21:36	80m	+3 / -15	UN3P	-20 / -5	7	✓ Full exchange observed
10-22 21:36	80m	- / +7	DK7ZT	+9 / -	5	Partial capture
10-22 21:32	80m	+8 / -6	W1MK	-11 / -9	10	✓ Full exchange observed
10-22 21:28	80m	+8 / -	UN3P	- / -	3	Partial capture
10-22 21:17	160m	-2 / -	DL7GP	+6 / -	7	✓ Full exchange observed
10-22 21:17	160m	-1 / +7	DK7ZT	-8 / -14	6	✓ Full exchange observed
10-22 21:17	160m	-5 / -	HA6NN	-8 / -11	8	Partial capture
10-22 21:17	160m	-3 / -11	RA4Y	-6 / -10	5	✓ Full exchange observed
10-22 21:13	160m	-1 / -14	RJ3DC	-1 / -	3	✓ Closing observed
10-22 21:10	160m	-2 / -16	UA4FKT	+6 / -7	5	✓ Full exchange observed
10-22 21:10	160m	-2 / -18	R4FDK	-4 / -	2	✓ Closing observed
10-22 21:06	160m	-2 / -4	4J3DJ	+3 / -	3	✓ Closing observed
10-21 02:56	60m	+5 / -	WV9L	- / -	8	Partial capture
10-21 02:53	60m	0 / -11	ES2AJ	-12 / -	3	✓ Full exchange observed
10-21 02:44	60m	-8 / -19	VE3FF	-16 / +4	7	✓ Full exchange observed
10-21 02:42	60m	-7 / -	AI4FR	- / -4	2	✓ Closing fragment
10-21 02:42	60m	- / -	F1IQH	-12 / -	3	Partial capture
10-21 02:35	60m	+6 / -10	UN7CL	-16 / -4	5	✓ Full exchange observed
10-21 02:31	60m	0 / -	SP1MGM	- / -7	2	✓ Closing fragment
10-21 02:28	60m	+1 / -	OM7ASP	- / -	2	✓ Closing fragment
10-21 02:26	60m	+4 / -	W1BS	- / -10	2	✓ Closing fragment
10-21 02:25	60m	+6 / -	N3CZ	- / -11	2	✓ Closing fragment
10-21 02:22	60m	+5 / -	KB8DX	- / -	5	Partial capture
10-21 02:20	60m	+10 / -	SP1MGM	- / -8	3	Partial capture
10-21 02:19	60m	+8 / -	N1XX	- / -1	2	✓ Closing fragment
10-21 02:17	60m	+5 / -9	G0AZH	-6 / +4	5	✓ Full exchange observed
10-21 02:17	60m	+4 / +1	OH1LA	-21 / -6	4	✓ Full exchange observed
10-21 02:10	60m	-14 / -	<...>	- / -	5	Partial capture
10-19 01:57	40m	- / -13	RW3QU	+3 / -	3	✓ Closing fragment
10-19 01:56	40m	- / -	R2AL	-5 / -	2	Partial capture
10-19 01:45	40m	-18 / -	VE9GSB	- / -	2	Partial capture
10-19 01:34	40m	- / -16	KK4CDK	-18 / -	2	✓ Closing fragment
10-19 01:28	40m	- / -23	TA3NK	-10 / -	2	✓ Closing fragment
10-19 01:27	40m	- / -8	R4FDD	+10 / -	2	✓ Closing fragment
10-08 01:58	40m	- / -	R6UBD	-14 / -	2	✓ Closing fragment
10-08 01:12	40m	- / -9	RN6HK	+2 / -	4	✓ Closing fragment
10-08 01:06	40m	- / -11	RX9WM	-6 / -	3	✓ Closing fragment
09-29 02:55	40m	- / -15	WW2N	-14 / -	2	✓ Closing fragment
09-29 02:54	40m	- / -9	R4IK	-8 / -	2	Partial capture
09-16 03:26	60m	-2 / -	5B4VL	- / -	3	Partial capture
09-16 03:24	60m	-5 / -	HB0WR	- / -	5	✓ Closing fragment
09-16 03:20	60m	-4 / -	XE2X	- / -	6	Partial capture
09-16 03:18	60m	-4 / -	K1WAT	- / -18	4	✓ Closing fragment
09-16 03:11	60m	-3 / -	KE8AFJ	- / -7	14	✓ Closing fragment
09-16 02:58	60m	-2 / -	KA9FOX	- / -	5	Partial capture
09-16 02:49	60m	-5 / -	W1IE	- / 0	3	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
214145 +10 1003  US2YW DL1RB RR73
214200  +0 2108  DL1RB US2YW 73
214200  -1 2389  DL1RB ON1BH -05
214200  -4 1003  DL1RB DO8JB JO32
214200 +14 2702  DL1RB DL7ACA JO40
214230  +4 2389  DL1RB ON1BH -05
214230  +1 1003  DL1RB DO8JB JO32 (x9)

160m

UTC    dB Audio  Message
211815 +10 2309  DL1RB DL7GP JO52
211815  -6 1757  DL1RB DK7ZT +07
211830  +2 1002  DK7ZT DL1RB R-14
211845  -7 1002  DL1RB HA6NN JN98
211845  +7 2309  DL1RB DL7GP JO52
211845  -7 1757  DL1RB DK7ZT RR73
211900  -4 1002  DK7ZT DL1RB 73
211915  -8 1002  DL1RB HA6NN JN98
211930  -6 1002  DL7GP DL1RB +15
211945  -2 2309  DL1RB DL7GP R+21
212000  +1 1002  DL7GP DL1RB RR73
212015  +6 2309  DL1RB DL7GP 73
212030  -4 1002  HA6NN DL1RB -11 (x3)

60m

UTC    dB Audio  Message
025145  -2 1034  CQ DL1RB JO41 (x4)
025345  +0 1034  ES2AJ DL1RB +30
025400 -13 2205  DL1RB ES2AJ R-11 (x2)
025630  +6 1034  WV9L DL1RB JO41 (x8)

40m

UTC    dB Audio  Message
015900 -12 1028  DL1RB R6UBD RR73
012730  +9 1039  DL1RB R4FDD -08
012800 -12 1181  DL1RB TA3NK R-23 (x2)
012900 +10 1039  DL1RB R4FDD RR73
013415 -16 1039  DL1RB KK4CDK -16 (x2)
014015 -16 1039  N4NF DL1RB JO41
014515 -18 1038  VE9GSB DL1RB JO41 (x2)
015630  -4 1012  DL1RB R2AL KO85
015700  +7 1370  DL1RB RW3QU KO90
015700  -6 1012  DL1RB R2AL KO85
015730  +2 1370  DL1RB RW3QU R-13 (x2)

20m

UTC    dB Audio  Message
172130 -18 1077  AE1T DL1RB JO41 (x3)
154900  -7 1075  VK5AIB DL1RB JO41
155530  -3 1075  N1JML DL1RB JO41 (x8)
160915 -11 1075  7Q7CT DL1RB JO41 (x2)
161130 -11  844  DL1RB 7Q7CT -12

10m

UTC    dB Audio  Message
142415  -9 1089  LU7LRP DL1RB JO41 (x5)
144645 -15 1090  PY1BP DL1RB JO41 (x4)
144615  -6 1087  <...> DL1RB JO41 (x6)

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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