DD5MA — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Fed. Rep. of Germany Most frequent locator attributed to this token: JO30

Receiver-side FT8 activity involving DD5MA, decoded by SO8OO in southeastern Poland. 64 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 8 UTC dates in the available aggregate history. Observed between 2026-07-03 and 2026-08-22.

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 64 FT8 messages attributed to DD5MA as the transmitting token by decoded message structure across 8 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (50%), followed by 80 m (25%) and 20 m (25%). Most decodes (80%) fell within the six-hour window 17:00-23:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -9 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-9 dB

Estimated median S/N

Bands

80m · 16 40m · 32 20m · 16

First attributed message: 2026-07-03
Last attributed message: 2026-08-22 22:51 UTC

Observed FT8 message patterns

Attributed sample: 64 messages
Active dates: 8 UTC dates
Estimated median S/N: -9 dB
Estimated 10th-90th percentile: -16 to +3 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 7, moderate (-15 to -9 dB) 29, strong (≥ -8 dB) 28.

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 DD5MA in decoded directed-looking exchanges:

OM3SX · Slovak Republic A99AA · Bahrain SP1ZMO · Poland DL9KM · Fed. Rep. of Germany F5MYK · France LB2YJ · Norway M0CKX · England PD0LBY · Netherlands SA6BWX · Sweden SA7CHI · Sweden SQ1KD · Poland TJ1GD/P · Cameroon

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 DD5MA

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: JO30 · 30 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,053 km (approx.)
Last such locator decoded: 2026-08-22 22:51 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	DD5MA S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-16 21:10	160m	- / -17	OM3SX	+9 / -	5	✓ Closing fragment
08-22 22:47	40m	-4 / -	JY5IB	- / -12	3	Partial capture
08-09 17:03	20m	-8 / -	OX3LX	- / -3	3	Partial capture
07-21 21:39	40m	-18 / -	DL70ESSEN	- / +8	2	Partial capture
07-14 12:50	20m	-16 / -16	M7JTK	-12 / -6	2	Partial capture
07-13 22:05	40m	-13 / -	LU9EHB/P	- / -	3	Partial capture
07-13 15:46	20m	-14 / -	UK8FCM	- / -	6	Partial capture
07-13 15:31	40m	- / -	DL6EL	-22 / -	2	Partial capture
07-12 16:26	20m	-20 / -	HB9ARK	- / -11	2	Partial capture
07-12 16:23	20m	-14 / -	JY5CG	- / -	2	Partial capture
07-11 15:42	20m	- / -20	A99AA	-16 / -	2	✓ Closing fragment
07-09 21:37	80m	- / -	F5MYK	-10 / -	2	Partial capture
07-09 21:34	80m	-5 / -	D2UY	- / -6	3	✓ Closing fragment
07-09 21:29	40m	-12 / -	TJ1GD/P	- / -15	5	✓ Closing fragment
07-09 21:19	40m	-10 / -3	PD0LBY	-18 / -	4	✓ Full exchange observed
07-09 21:17	40m	-12 / -9	DL9KM	-8 / -	4	✓ Full exchange observed
07-09 21:16	40m	-10 / -3	SQ1KD	-16 / +1	4	✓ Full exchange observed
07-09 21:14	40m	-10 / -	LB2YJ	- / +7	2	✓ Closing fragment
07-09 21:14	40m	-11 / -	M0CKX	-16 / -	2	✓ Closing observed
07-09 21:11	40m	-9 / 0	SA7CHI	-9 / -	6	✓ Full exchange observed
07-03 21:43	80m	+3 / -10	SP2LQR	+4 / -9	7	✓ Full exchange observed
07-03 21:38	80m	+1 / -2	SP2GTI	+3 / -17	10	Partial capture
07-03 21:21	40m	-8 / -	SA6BWX	-12 / -	5	✓ Closing observed

Recent FT8 messages decoded at SO8OO

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

160m

UTC    dB Audio  Message
211045  +8  310  DD5MA OM3SX KN08 (x5)

40m

UTC    dB Audio  Message
213145 -12 1086  TJ1GD/P DD5MA R-15 (x2)
153030 -17 1364  DD5MA DJ0BS -01
153130 -22 1393  DD5MA DL6EL JN57 (x2)
220545 -10 1167  LU9EHB/P DD5MA JO30 (x3)
213945 -19 2261  DL70ESSEN DD5MA +08 (x2)
214200 -13 2260  DD5MA DL70ESS
224745  -8 1790  JY5IB DD5MA JO30 (x3)
225100  -5 1790  XV9B DD5MA JO30

20m

UTC    dB Audio  Message
162745 -19 2166  HB9ARK DD5MA -11
154645 -14  707  UK8FCM DD5MA JO30 (x6)
125045 -16  802  M7JTK DD5MA -06
125100 -12 2582  DD5MA M7JTK R-16
125245 -12  802  SP1ZMO DD5MA RR73
125300 -13  802  DD5MA IU5TPM JN53
125915 -11  802  CU7MD DD5MA -18
170345  -9 2773  OX3LX DD5MA JO30 (x3)

80m

UTC    dB Audio  Message
214130  -3  657  SP2GTI DD5MA R-17 (x3)
214315  -4  656  SP2LQR DD5MA JO30
214330  +4  819  DD5MA SP2LQR -10
214345  +5  657  SP2LQR DD5MA R-09
214400  +2  819  DD5MA SP2LQR -10
214415  +3  657  SP2LQR DD5MA R-11
214430  +6  819  DD5MA SP2LQR RR73
214445  +9  657  SP2LQR DD5MA 73
213445  -3 1330  D2UY DD5MA JO30 (x3)
213700 -17 2104  DD5MA F5MYK IN97 (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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