DJ0MAB — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Fed. Rep. of Germany Most frequent locator attributed to this token: JN49

Receiver-side FT8 activity involving DJ0MAB, decoded by SO8OO in southeastern Poland. 30,157 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 89 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-09-20.

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 30,157 FT8 messages attributed to DJ0MAB as the transmitting token by decoded message structure across 89 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (85%), followed by 20 m (11%) and 10 m (4%). Decoded messages were spread across the UTC day; the busiest six-hour window (03:00-09:00 UTC) held 31% of decodes. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -6.5 dB.

Overview

30,157

Messages attributed

UTC dates decoded

2,616

Active 15-min windows

-6.5 dB

Estimated median S/N

Bands

40m · 25,722 20m · 3,343 10m · 1,092

First attributed message: 2026-06-06
Last attributed message: 2026-09-20 10:32 UTC

Observed FT8 message patterns

Attributed sample: 30,157 messages
Active dates: 89 UTC dates
Estimated median S/N: -6.5 dB
Estimated 10th-90th percentile: -18 to +5.3 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 5,168, moderate (-15 to -9 dB) 7,552, strong (≥ -8 dB) 17,437.

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 DJ0MAB in decoded directed-looking exchanges:

E77WM · Bosnia-Herzegovina ×21 M8FQT · England ×10 HA1ZW · Hungary ×6 IZ5FSO · Italy ×6 IK4LZH · Italy ×5 M7KSV · England ×5 TA3NK · Asiatic Turkey ×4 M7OIK · England ×4 RD6OZ · European Russia ×4 F1SZC · France ×3 PD7BB · Netherlands ×3 SP9JMZ · Poland ×3

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 DJ0MAB

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 · 24,131 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 920 km (approx.)
Last such locator decoded: 2026-09-20 10:32 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	DJ0MAB S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-20 10:24	40m	-20 / -17	DL7AG	-6 / +2	9	✓ Full exchange observed
09-20 10:16	40m	-21 / -	DL5KMR	- / -	3	Partial capture
09-20 10:10	40m	- / -14	RA4ADF/P	-20 / -	2	Partial capture
09-20 10:10	40m	-23 / -	SV8/SV1TQB	- / -	2	Partial capture
09-20 10:08	40m	-20 / -14	DL7AG	-13 / -	4	Partial capture
09-20 10:04	40m	-20 / -	WD4FJF	- / -	3	Partial capture
09-20 10:02	40m	- / -13	DF0PDF	-1 / -	2	Partial capture
09-20 09:59	40m	-17 / -	OE2JPO	- / -	2	Partial capture
09-20 09:58	40m	- / -	OH3MB	-20 / -	2	Partial capture
09-20 09:23	40m	- / -	DM9YL	-11 / -	2	Partial capture
09-20 09:20	40m	-14 / -	DF3TN	- / -	3	Partial capture
09-20 08:53	40m	- / +5	SQ3BKI	+3 / -	4	✓ Closing fragment
09-20 08:48	40m	-11 / -3	DF0PDF	+4 / -	5	Partial capture
09-20 08:30	40m	-20 / -	IK3FHP	- / -	4	Partial capture
09-20 08:21	40m	-8 / -1	DF0PDF	+4 / -	7	Partial capture
09-20 08:16	40m	-13 / -9	SP8JKP	-1 / -	6	Partial capture
09-20 08:11	40m	-18 / -	SP9XKV	- / -	3	Partial capture
09-20 08:03	40m	-6 / 0	SP6TI	-8 / -	8	Partial capture
09-20 08:01	40m	-15 / -	F4CQA	- / +7	3	Partial capture
09-20 07:47	40m	-13 / -	OE2AFX	- / -	6	Partial capture
09-20 07:42	40m	-14 / -	IW5EED	- / 0	7	Partial capture
09-20 07:36	40m	- / -	DK2MAX	-10 / -	2	Partial capture
09-20 07:35	40m	-15 / -	OE2AFX	- / -	3	Partial capture
09-20 07:10	40m	-6 / -	DG2LA	- / -	3	Partial capture
09-20 07:06	40m	-11 / -	OE2AFX	-18 / -11	6	✓ Closing observed
09-20 06:56	40m	-7 / -12	SP9OZ	-12 / +9	5	✓ Full exchange observed
09-20 06:35	40m	- / -12	YO8RCA	-2 / -	4	Partial capture
09-20 06:33	40m	-6 / +1	YL3AQI	-2 / -	4	Partial capture
09-20 06:31	40m	+2 / -	K5GFL	- / -	3	Partial capture
09-20 06:25	40m	0 / -	K1QD	- / -	4	Partial capture
09-20 06:22	40m	- / +6	DF0PDF	+8 / -	2	Partial capture
09-20 06:10	40m	-4 / -	S59AT	- / -	2	Partial capture
09-20 06:06	40m	+7 / -6	SP3FCK	+11 / -	2	Partial capture
09-20 06:01	40m	-9 / -	K4KL	- / -	2	Partial capture
09-20 05:53	40m	0 / -	K4KL	- / -	3	Partial capture
09-20 05:48	40m	+8 / -	NW2H	- / -	4	Partial capture
09-20 05:46	40m	-4 / -	K4KL	- / -	2	Partial capture
09-20 05:43	40m	+8 / -	NW2H	- / -	3	Partial capture
09-20 05:43	40m	- / +3	GJ0KYZ	-8 / -	2	Partial capture
09-20 05:40	40m	-6 / -	F4NGC	- / -	3	Partial capture
09-20 05:35	40m	+12 / -	NW2H	- / -	3	Partial capture
09-20 05:34	40m	-2 / -	S58N	- / -	2	Partial capture
09-20 05:27	40m	+6 / -	NW2H	- / -	3	Partial capture
09-20 05:21	40m	+3 / -	F5BZB	- / -	3	Partial capture
09-20 05:19	40m	0 / -	VE3TZE	- / -	4	Partial capture
09-20 05:14	40m	+2 / -	VE7BV	- / -	3	Partial capture
09-20 05:06	40m	+2 / -	DL3OCF	- / -	5	Partial capture
09-20 05:03	40m	-2 / -	W5TVC	- / -	4	Partial capture
09-20 04:59	40m	0 / -	WX7P	- / -	2	Partial capture
09-20 04:56	40m	-2 / -8	LY2PPS	+7 / -	6	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
102345 -17 2407  CQ DJ0MAB JN49                        a1
102430 -21 2259  DL7AG DJ0MAB JN49 (x2)
102515  -3 2258  DJ0MAB DL7AG -17 (x5)
102730 -16 2259  DL7AG DJ0MAB R+02
102745  -1 2258  DJ0MAB DL7AG RR73
102915 -17 2259  CQ DJ0MAB JN49 (x5)

80m

UTC    dB Audio  Message
163245 -19 1363  DJ0MAB OZ1EDR JO65
054115 -12 1179  DJ0MAB DG9WH JO40 (x2)

20m

UTC    dB Audio  Message
180700 +13 1729  DJ0MAB IW5ECP RR73
182400 -10 1733  DJ0MAB IK4PLU -10 (x2)
183100 -11 2557  SP9BGL DJ0MAB JN49 (x2)
183330  -5 2762  DJ0MAB TK/F6FDY -17 (x3)
183715  -8  365  RI1FJL DJ0MAB JN49
190700 -13  699  DJ0MAB II7MGBA -15
191345  -9 2635  CQ DJ0MAB JN49
191915  -9 1629  DJ0MAB M9KDL RR73
192230  -6 2859  GI7LOU DJ0MAB JN49
192830 -20 2490  E74MW DJ0MAB JN49
202230  -5 1344  DJ0MAB IZ0DHC -06

10m

UTC    dB Audio  Message
215015 -20 1891  LA6AFA DJ0MAB JN49 (x2)
215145 -15 1892  CQ DJ0MAB JN49 (x11)
133645  -7  530  DJ0MAB IK4JQQ/IL7 -06
134830 -24 1627  <...> DJ0MAB 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.

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