DG4MDO — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Fed. Rep. of Germany Most frequent locator attributed to this token: JN68

Receiver-side FT8 activity involving DG4MDO, decoded by SO8OO in southeastern Poland. 505 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 37 UTC dates in the available aggregate history. Observed between 2026-07-02 and 2026-09-13.

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 505 FT8 messages attributed to DG4MDO as the transmitting token by decoded message structure across 37 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (63%), followed by 20 m (35%) and 80 m (2%). Most decodes (63%) fell within the six-hour window 15:00-21:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -10 dB.

Overview

505

Messages attributed

UTC dates decoded

100

Active 15-min windows

-10 dB

Estimated median S/N

Bands

80m · 10 40m · 316 20m · 177 10m · 2

First attributed message: 2026-07-02
Last attributed message: 2026-09-13 20:09 UTC

Observed FT8 message patterns

Attributed sample: 505 messages
Active dates: 37 UTC dates
Estimated median S/N: -10 dB
Estimated 10th-90th percentile: -17 to -4 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 97, moderate (-15 to -9 dB) 207, strong (≥ -8 dB) 201.

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 DG4MDO in decoded directed-looking exchanges:

F1PBZ · France ×4 OE6TNO · Austria ×3 IK2ZJR · Italy ×2 IQ4JO · Italy ×2 DH0GBC · Fed. Rep. of Germany ×2 HA7TM · Hungary ×2 SP9UPH · Poland ×2 DK0KG · Fed. Rep. of Germany ×2 A71XX · Qatar F4ASA · France G0ABI · England G7KUJ · 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 DG4MDO

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: JN68 · 398 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 658 km (approx.)
Last such locator decoded: 2026-09-13 20:09 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	DG4MDO S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-13 20:33	40m	- / -	CT2HEX	-8 / -	4	Partial capture
09-13 20:30	40m	- / -5	M0BEW	+4 / -	3	✓ Closing fragment
09-13 20:13	40m	- / -	EA7UW	-15 / -	3	Partial capture
09-13 20:06	40m	-12 / -16	EH2PDA	-15 / -14	4	✓ Full exchange observed
09-13 19:28	80m	- / -	DO8OS	-10 / -	3	✓ Closing fragment
09-13 19:21	80m	- / -16	DO8OS	-4 / -	9	Partial capture
09-13 15:24	40m	-11 / -8	US2YW	+16 / -10	4	✓ Full exchange observed
09-13 15:23	40m	-10 / -	9A7DNZ	- / -9	2	✓ Closing fragment
09-13 15:19	40m	-5 / -4	DL1YFS	-11 / -	4	✓ Closing observed
09-13 15:17	40m	-8 / +1	DJ1NE	-14 / -8	4	✓ Full exchange observed
09-13 15:12	40m	- / -12	DL3BCU	-6 / -	3	✓ Closing fragment
09-11 20:12	40m	-11 / -	OE8DDX	- / -	6	Partial capture
09-08 14:59	40m	-8 / -	SP9MRP	- / 0	2	Partial capture
09-07 19:50	40m	-13 / -17	Z31CZ	-3 / -	3	✓ Closing observed
09-07 19:46	40m	-10 / -	UR4QWW	- / -	3	Partial capture
09-07 19:43	40m	-11 / -7	HG0NPJ	0 / -	3	✓ Closing observed
09-07 19:31	40m	-12 / -	EA3IAZ	- / -	2	✓ Closing fragment
09-07 19:23	40m	- / -13	SP9JP	-3 / -	4	✓ Closing fragment
09-07 13:22	40m	-11 / -	OE2CAL	- / -	3	Partial capture
09-05 21:37	40m	-4 / -	G6LTT	- / -	2	Partial capture
09-05 20:42	40m	-4 / -25	LA1FDG	-12 / -12	6	✓ Full exchange observed
09-05 20:38	40m	-7 / -	LA1FDG	- / -	3	Partial capture
09-05 20:24	40m	- / -15	PD2TX	-2 / -	2	✓ Closing fragment
09-05 20:17	40m	-5 / +1	RN2F	-14 / -5	3	✓ Full exchange observed
09-04 19:04	80m	- / -18	DK0KG	-3 / -	3	✓ Closing fragment
09-02 18:21	40m	- / -3	OM7AMA	+4 / -	2	✓ Closing fragment
09-02 18:04	40m	- / -	IZ2SXZ	-14 / -	2	Partial capture
08-31 20:12	20m	- / -16	RC5F	-9 / -	2	Partial capture
08-30 19:56	20m	- / -1	M0PBG	+18 / -	4	✓ Closing fragment
08-30 19:55	20m	- / -19	GM4HYG	-4 / -	2	Partial capture
08-30 16:03	40m	-11 / -	DL3LBK	- / -20	3	Partial capture
08-30 15:59	40m	- / -	DL3LBK	-2 / -	2	Partial capture
08-29 20:53	20m	-18 / -	Z62NS	- / -	4	Partial capture
08-29 20:12	20m	-18 / -	VE1WT	- / -	2	Partial capture
08-29 12:21	40m	-22 / -	EI1MH	- / -	2	Partial capture
08-29 09:58	20m	- / -13	MI0NWA	-5 / -	3	Partial capture
08-29 09:39	20m	- / -11	R4FDD	+4 / -	2	Partial capture
08-28 19:47	20m	- / -	TA4SSK	-4 / -	4	Partial capture
08-28 19:03	40m	-8 / -	DK7XD	- / -17	2	Partial capture
08-28 18:59	40m	- / -	DK7XD	-14 / -	2	✓ Closing fragment
08-28 18:49	40m	- / -24	F4MTT	-6 / -	6	Partial capture
08-28 18:36	40m	-6 / -	CN8NS	- / -	7	Partial capture
08-28 18:30	40m	-6 / -21	R3DHP	-6 / -8	4	✓ Full exchange observed
08-28 18:28	40m	-1 / -16	OH4NDU	-8 / -	4	✓ Closing observed
08-28 18:25	40m	-8 / -17	DC2SF	0 / -8	5	✓ Full exchange observed
08-28 18:24	40m	- / -	F5LMJ	-12 / -	2	Partial capture
08-28 18:15	40m	-6 / -12	DG9UBF	-8 / -14	3	✓ Closing observed
08-28 18:11	40m	-7 / -6	DH7WW/P	+1 / -9	3	✓ Full exchange observed
08-28 18:04	40m	-9 / -20	OE6TNO	+6 / -20	15	✓ Full exchange observed
08-28 15:09	40m	-16 / -9	SP1JQJ	+4 / -12	5	✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
200900 -11 1183  CQ DG4MDO JN68
200930  -9 1183  EH2PDA DG4MDO R-14
200945 -15 1366  DG4MDO EH2PDA RR73
201315 -17  713  DG4MDO EA7UW IM76 (x3)
203045  +0 2905  DG4MDO M0BEW -05 (x3)
203315  -8  680  DG4MDO CT2HEX IM58 (x5)
205515  -7 2802  DG4MDO F5SJC R-04

80m

UTC    dB Audio  Message
190445  -4 2150  DG4MDO DK0KG JN49 (x3)
192130  -5  301  DG4MDO DO8OS -16 (x12)

20m

UTC    dB Audio  Message
205515 -24 1159  Z62NS DG4MDO JN68
091100 -17 2658  CQ DG4MDO JN68 (x3)
091400 -15 2658  F4FTX DG4MDO JN68
091430 -14 2658  CQ DG4MDO JN68                        a1
091500 -17 2659  EA3FYO DG4MDO JN68
195545  -6  631  DG4MDO GM4HYG -19
195645 +21 2707  DG4MDO M0PBG IO93
195645  -2  631  DG4MDO GM4HYG -19
195715 +11 2707  DG4MDO M0PBG IO93 (x3)
201200 -11 1183  DG4MDO RC5F KO85 (x2)

10m

UTC    dB Audio  Message
193345 -24 1521  DG4MDO G7KUJ 73
092630 -18 2049  DG4MDO PD5SAP +06 (x3)
073630 -15  969  DG4MDO F4GZO JN09
102400 -12 2269  DG4MDO EA5ET IM99
061900  -8  679  DG4MDO G0ABI -12 (x2)
090130 -17  952  CQ DG4MDO JN68 (x2)
141245  -7  554  DG4MDO IU0VOG 73
153145 -12 1372  DG4MDO F4ASA -03 (x2)
153315  +1 2931  DG4MDO F1PBZ -18 (x2)

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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