DL4JCP — 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: JO60

Receiver-side FT8 activity involving DL4JCP, decoded by SO8OO in southeastern Poland. 455 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, 10m, across 33 UTC dates in the available aggregate history. Observed between 2026-06-10 and 2026-10-23.

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 455 FT8 messages attributed to DL4JCP as the transmitting token by decoded message structure across 33 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (47%), followed by 20 m (22%) and 80 m (11%). Most decodes (68%) fell within the six-hour window 12:00-18:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (68%); the estimated median was -3 dB.

Overview

455

Messages attributed

UTC dates decoded

Active 15-min windows

-3 dB

Estimated median S/N

Bands

160m · 20 80m · 52 60m · 32 40m · 213 20m · 101 10m · 37

First attributed message: 2026-06-10
Last attributed message: 2026-10-23 20:06 UTC

Observed FT8 message patterns

Attributed sample: 455 messages
Active dates: 33 UTC dates
Estimated median S/N: -3 dB
Estimated 10th-90th percentile: -15 to +8 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 44, moderate (-15 to -9 dB) 102, strong (≥ -8 dB) 309.

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 DL4JCP in decoded directed-looking exchanges:

HA8RC · Hungary ×2 OK2USM · Czech Republic S57BTI · Slovenia SO3O · Poland JL1XMN · Japan YB3GEM · Indonesia DK8HC · Fed. Rep. of Germany DL0HAM · Fed. Rep. of Germany DL9AN · Fed. Rep. of Germany G0AKH · England G0NIG · England G8MIA · England

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 DL4JCP

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: JO60 · 304 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 628 km (approx.)
Last such locator decoded: 2026-10-23 20:06 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	DL4JCP S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-23 20:05	160m	-17 / -	SP8VJV	- / -	3	Partial capture
10-23 20:03	160m	-12 / -	YL3PO	- / -	4	Partial capture
10-23 20:01	160m	-7 / -8	OK2USM	-4 / -11	6	✓ Full exchange observed
10-23 20:00	160m	-8 / +2	S57BTI	-8 / -13	5	✓ Full exchange observed
10-23 17:57	60m	+12 / -12	IN3IZQ	-15 / -7	5	✓ Full exchange observed
10-23 17:56	80m	- / -	UA4FKT	+7 / -	3	Partial capture
10-23 17:55	80m	-1 / +4	ES2AJ	+14 / -	5	✓ Closing observed
10-23 17:52	60m	- / -	SP2EWQ	-5 / -	3	Partial capture
10-23 17:50	60m	+1 / -3	G4NSO	-17 / -7	5	✓ Full exchange observed
10-23 17:50	60m	-2 / -6	IK2CMI	-21 / -12	5	✓ Full exchange observed
10-23 17:50	60m	- / -	OE3OOG	+5 / -	4	Partial capture
10-23 17:49	60m	-2 / -	HA8RC	-11 / -6	4	✓ Closing observed
10-23 15:59	60m	- / -4	F4EFL	-15 / -	2	✓ Closing fragment
10-23 15:51	60m	0 / -	GE3TXA	- / -11	5	✓ Closing fragment
10-23 15:46	60m	-4 / -	LB0EI	- / -	3	Partial capture
10-23 15:23	80m	-3 / -11	PA3ATZ	-6 / -15	5	✓ Full exchange observed
10-23 15:22	80m	-5 / -	F5AOL	- / +1	3	✓ Closing fragment
10-23 15:20	80m	-4 / -	HA9MDP	- / -	2	Partial capture
10-22 18:02	80m	- / -	DO5AX	-15 / -	2	Partial capture
10-22 17:58	80m	- / -	DK8HC	0 / -	3	Partial capture
10-22 17:55	80m	0 / -14	YO2LC	-16 / -14	5	✓ Full exchange observed
10-22 17:54	80m	+2 / -	F4GAJ	-15 / -10	4	✓ Closing observed
10-22 17:52	80m	-3 / -5	SQ6JFJ	+3 / 0	5	✓ Full exchange observed
10-22 17:47	160m	-16 / -	F5NBU	- / -	3	Partial capture
10-17 12:15	40m	-1 / -	GB5SJ	- / -	14	Partial capture
10-17 12:13	40m	+9 / -	DJ1TU	- / +9	2	Partial capture
10-17 12:10	40m	- / -	DJ1TU	-18 / -	3	Partial capture
10-17 12:08	40m	+6 / -	G8MIA	- / -1	3	✓ Closing fragment
10-17 12:07	40m	+2 / -	DK8HC	- / 0	2	✓ Closing fragment
10-17 12:05	40m	+1 / -	DL9AN	- / -14	2	✓ Closing fragment
10-17 12:00	40m	-4 / -	GB4NSS	- / -10	10	✓ Closing fragment
10-17 11:58	40m	-4 / -	SK7FN	-15 / +4	4	✓ Closing observed
10-17 11:57	40m	-8 / -	GB5SJ	- / -	2	Partial capture
10-08 09:51	40m	+1 / -	M0VBY	- / -6	3	✓ Closing fragment
10-08 09:49	40m	-4 / -	M7EJN	- / -	2	Partial capture
09-12 09:34	40m	+5 / -	IU4PTA	- / -11	4	Partial capture
09-12 09:29	40m	-2 / -	M7FHO	- / -20	5	✓ Closing fragment
09-02 17:40	80m	+4 / -4	9A3EYA	+5 / -	8	✓ Full exchange observed
09-02 16:31	40m	+3 / -	EA2ESU	- / -15	3	Partial capture
09-02 16:29	40m	- / -10	R2DRE	-2 / -	2	Partial capture
09-02 16:27	40m	0 / -	GW0NPL	- / -12	2	Partial capture
09-02 16:24	40m	+1 / -	GW5JJV	- / +3	5	✓ Closing fragment
08-31 17:33	80m	-14 / -18	YO9XC	+4 / -	5	Partial capture
08-31 17:27	80m	-18 / -22	YO9XC	+9 / -18	9	Partial capture
08-31 16:06	40m	-6 / +10	OK2VCR	+8 / +9	6	✓ Full exchange observed
08-31 16:02	40m	+2 / -	G7SQW	- / -	8	Partial capture
08-31 15:50	40m	+7 / -	IU3BRZ	- / -	9	Partial capture
08-31 15:48	40m	+7 / -	EI6JMB	- / -	3	Partial capture
08-31 15:45	40m	+8 / -18	DL0HAM	+4 / +9	6	✓ Full exchange observed
08-31 15:39	40m	+6 / -	G0AKH	- / -17	4	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

160m

UTC    dB Audio  Message
200115  -8 2350  S57BTI DL4JCP 73
200130  -2 2351  DL4JCP OK2USM JN89
200145  -9 2350  OK2USM DL4JCP -11
200200  -4 2351  DL4JCP OK2USM R-08
200215  -7 2350  OK2USM DL4JCP RR73
200230  -5 2351  DL4JCP OK2USM 73
200245  -6 2350  OK2USM DL4JCP -10
200300 -13 2081  DL4JCP HA7VC/P R+02
200345 -11 2350  YL3PO DL4JCP JO60 (x4)
200545 -21 2350  SP8VJV DL4JCP JO60 (x3)

60m

UTC    dB Audio  Message
175115 -17 1767  DL4JCP G4NSO -03
175130  +1 1956  G4NSO DL4JCP R-07 (x2)
175215  -8 1955  DL4JCP SP2EWQ JO93
175215  +1  634  DL4JCP OE3OOG JN87
175230  -5 1956  IK2CMI DL4JCP R-12
175245 -22 1556  DL4JCP IK2CMI RR73
175300  +0 1956  IK2CMI DL4JCP 73
175315  -4 1955  DL4JCP SP2EWQ JO93 (x2)
175700 +13 2779  IN3IZQ DL4JCP JO60
175715 -15 1606  DL4JCP IN3IZQ -12
175730 +12 2779  IN3IZQ DL4JCP R-07
175745 -15 1606  DL4JCP IN3IZQ RR73
175800 +12 2779  IN3IZQ DL4JCP 73

80m

UTC    dB Audio  Message
152300  -4 2497  F5AOL DL4JCP 73
152330  -4 2497  PA3ATZ DL4JCP JO60
152345  -9 2496  DL4JCP PA3ATZ -11
152400  -5 2497  PA3ATZ DL4JCP R-15
152415  -4 2497  DL4JCP PA3ATZ RR73
152430  -1 2497  PA3ATZ DL4JCP 73
154500  -3 2497  F6BPZ DL4JCP JO60
175500  -2 2748  ES2AJ DL4JCP JO60 (x2)
175545 +16 2113  DL4JCP ES2AJ +04 (x2)
175630  -3 2748  ES2AJ DL4JCP 73
175645  +5 2748  DL4JCP UA4FKT LO23 (x3)

40m

UTC    dB Audio  Message
121415  +9 2920  DJ1TU DL4JCP +09
121515  -3 2201  GB5SJ DL4JCP JO60 (x14)

20m

UTC    dB Audio  Message
123500 +11 2974  HL4GAV DL4JCP JO60 (x9)
154000  +6 1490  YB3GEM DL4JCP JO60 (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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