DJ7JB — 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: JO62

Receiver-side FT8 activity involving DJ7JB, decoded by SO8OO in southeastern Poland. 634 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, 10m, across 53 UTC dates in the available aggregate history. Observed between 2026-06-14 and 2026-10-20.

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 634 FT8 messages attributed to DJ7JB as the transmitting token by decoded message structure across 53 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (73%), followed by 60 m (12%) and 40 m (8%). The busiest six-hour window was 05:00-11:00 UTC, containing 47% of decodes. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (83%); the estimated median was 0 dB.

Overview

634

Messages attributed

UTC dates decoded

145

Active 15-min windows

0 dB

Estimated median S/N

Bands

160m · 5 80m · 4 60m · 79 40m · 51 20m · 463 10m · 32

First attributed message: 2026-06-14
Last attributed message: 2026-10-20 06:20 UTC

Observed FT8 message patterns

Attributed sample: 634 messages
Active dates: 53 UTC dates
Estimated median S/N: 0 dB
Estimated 10th-90th percentile: -11 to +8 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 16, moderate (-15 to -9 dB) 91, strong (≥ -8 dB) 527.

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 DJ7JB in decoded directed-looking exchanges:

OH1LA · Finland ×2 CN8WK · Morocco 9H1FJ · Malta AA1ZZ · United States EA6AQG · Balearic Islands IK4JPP · Italy K0BFG · United States KC1ZWW · United States MD0CCE · Isle of Man OZ7CL · Denmark R4FDW · European Russia RD0L · Asiatic Russia

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 DJ7JB

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: JO62 · 511 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 675 km (approx.)
Last such locator decoded: 2026-10-20 06:20 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	DJ7JB S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-20 06:20	60m	- / -	G0AZH	-12 / -	4	Partial capture
10-20 06:20	60m	- / -	SP9PRR	-3 / -	2	Partial capture
10-20 06:15	60m	-10 / -15	F4FDR	-17 / -10	8	✓ Full exchange observed
10-19 05:05	60m	-14 / -24	LZ2HN	+5 / -4	5	✓ Full exchange observed
09-30 05:21	40m	-12 / -	WA4FU	- / -13	2	Partial capture
09-30 05:02	60m	-7 / -	SM1TDE	- / -25	3	✓ Closing fragment
09-29 05:17	40m	-9 / -	WK9U	- / -	2	Partial capture
09-26 13:29	40m	-7 / -	LY9MP	- / -	2	Partial capture
09-25 17:24	80m	+1 / -1	Z62NS	-2 / 0	6	✓ Full exchange observed
09-25 08:35	40m	-6 / -	R2EA/P	- / -	2	Partial capture
09-24 21:05	60m	-4 / -	EA9DX	- / -	2	Partial capture
09-23 10:14	40m	-3 / -	TM14LEO	- / -7	2	Partial capture
09-21 06:00	40m	0 / -8	IK4TVP	-11 / -9	5	✓ Full exchange observed
09-21 05:58	40m	-3 / -	TI4LAS	- / -12	3	✓ Closing fragment
09-17 05:39	40m	-5 / -	KB3Z	- / -	5	Partial capture
09-14 07:38	40m	-6 / -14	II6IGTO	-23 / -18	6	Partial capture
09-14 07:37	40m	-10 / -	R5QO/QRP	- / -	2	Partial capture
09-01 06:03	60m	-4 / -	DL8RBL	+8 / -6	3	✓ Closing observed
09-01 06:03	60m	- / -	DD6ZV	0 / -	8	Partial capture
09-01 06:01	60m	-5 / -	<...>	- / -18	3	Partial capture
09-01 05:49	60m	-3 / -1	PA5KK	-15 / -	3	✓ Closing observed
09-01 05:45	60m	-2 / -	F5MXH	-19 / -16	3	✓ Closing observed
09-01 05:44	60m	- / -	DD6ZV	+7 / -	7	Partial capture
09-01 05:43	60m	+4 / -	DL9KM	-16 / -19	4	✓ Closing observed
09-01 05:43	60m	- / -	G0BLB	-8 / -	4	Partial capture
09-01 05:42	60m	+2 / -1	ON7KEI	-21 / -8	3	✓ Full exchange observed
09-01 05:39	60m	+2 / -	I/DH3YAK	- / -14	3	Partial capture
09-01 05:35	40m	-8 / -	PV8AJ	- / -	2	Partial capture
08-31 18:36	20m	+5 / -	JH1VPB	- / -	8	Partial capture
08-31 18:34	20m	+5 / -	YB6XFI	- / -	3	Partial capture
08-31 18:32	20m	+8 / -	JH1VPB	- / -	4	Partial capture
08-31 18:28	20m	+4 / -	TA2PWR	- / -	6	Partial capture
08-31 17:46	20m	+5 / -	YB6XFI	- / -23	3	Partial capture
08-31 16:13	20m	+2 / +2	<...>	-4 / -6	3	Partial capture
08-31 12:25	20m	- / -	F1PSX	-4 / -	10	Partial capture
08-29 19:27	60m	-3 / -	4X1GA	- / -	3	Partial capture
08-29 19:25	60m	-1 / -	SM6CCO	- / -	2	Partial capture
08-29 19:24	60m	- / -	F5MYK	-9 / -	2	Partial capture
08-29 19:23	60m	+2 / +3	HA5AZD	-10 / -1	6	✓ Full exchange observed
08-29 19:21	60m	+2 / -	4X1GA	- / -	2	Partial capture
08-29 19:18	60m	- / -	DL1NEO	-1 / -	5	Partial capture
08-29 19:17	60m	0 / -8	OH1LA	-16 / -14	9	✓ Full exchange observed
08-29 19:13	60m	- / -	DL4HTK	-10 / -	2	Partial capture
08-29 19:12	60m	- / -	G0AZH	-7 / -	7	Partial capture
08-29 19:12	60m	+1 / -3	OH1LA	-15 / -11	8	✓ Full exchange observed
08-29 19:12	60m	+2 / 0	PE1MHY	-10 / -7	8	✓ Full exchange observed
08-29 19:11	60m	0 / +4	PE1PEO	-10 / -1	11	✓ Full exchange observed
08-29 19:09	60m	- / -	F5MYK	-8 / -	2	Partial capture
08-29 19:08	60m	+3 / -16	LB6LK	-10 / -11	4	✓ Full exchange observed
08-29 19:03	60m	+2 / -	IK4CBO	-10 / -	3	✓ Closing observed

Recent FT8 messages decoded at SO8OO

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

60m

UTC    dB Audio  Message
061615 -11  608  F4FDR DJ7JB JO62 (x3)
061830 -15 1310  DJ7JB F4FDR -15
061845 -11  608  F4FDR DJ7JB R-10
061900 -19 1310  DJ7JB F4FDR RR73
061915 -10  608  F4FDR DJ7JB 73
061945 -15  608  CQ DJ7JB JO62                         a1
062000  -2  609  DJ7JB SP9PRR JO90
062000 -10  677  DJ7JB G0AZH IO83
062015  -2  608  CQ DJ7JB JO62
062030  -4  609  DJ7JB SP9PRR JO90
062130 -13  678  DJ7JB G0AZH IO83 (x3)

10m

UTC    dB Audio  Message
151845 -14  604  CX1TF DJ7JB JO62
154630 -12  605  PY2FUI DJ7JB JO62 (x5)
073830  -5  615  YD0ATZ DJ7JB JO62 (x5)
133030 +18 2803  DJ7JB CN8WK RR73
113300 -24 1637  DJ7JB C5R -15 (x2)
122230 -18 1637  DJ7JB RR73; SP3DX <...> -02

40m

UTC    dB Audio  Message
101445  -5  458  TM14LEO DJ7JB JO62
101500  -8 1425  DJ7JB HF100PKP +01
101515  -1  458  TM14LEO DJ7JB R-07
101615  +0  458  CQ DJ7JB JO62
064015  -7  613  R2EA/P DJ7JB JO62 (x3)
132900  -5  733  LY9MP DJ7JB JO62 (x2)
051700 -10  792  WK9U DJ7JB JO62 (x2)
195545  -5 2241  DJ7JB IZ4JMA JN54
195615  +0  614  DJ7JB F6BHK JN24
052100 -14  793  WA4FU DJ7JB R-13 (x2)

80m

UTC    dB Audio  Message
172415  +0  423  Z62NS DJ7JB JO62 (x3)
172530  -5 1429  DJ7JB Z62NS -01
172545  +4  423  Z62NS DJ7JB R+00
172600  +2 1430  DJ7JB Z62NS RR73

20m

UTC    dB Audio  Message
183230  +5  650  JH1VPB DJ7JB JO62 (x4)
183430  +6  650  YB6XFI DJ7JB JO62 (x3)
183630  +8  650  JH1VPB DJ7JB JO62 (x8)

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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