DL9MRF — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Fed. Rep. of Germany Most frequent locator attributed to this token: JO52

Receiver-side FT8 activity involving DL9MRF, decoded by SO8OO in southeastern Poland. 268 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, across 6 UTC dates in the available aggregate history. Observed between 2026-07-13 and 2026-09-19.

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 268 FT8 messages attributed to DL9MRF as the transmitting token by decoded message structure across 6 UTC dates in the available aggregate history. The largest monitored-band total was 160 m (84%), followed by 40 m (13%) and 80 m (3%). Most decodes (100%) fell within the six-hour window 16:00-22:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (97%); the estimated median was +2.5 dB.

Overview

268

Messages attributed

UTC dates decoded

Active 15-min windows

+2.5 dB

Estimated median S/N

Bands

160m · 226 80m · 8 40m · 34

First attributed message: 2026-07-13
Last attributed message: 2026-09-19 19:41 UTC

Observed FT8 message patterns

Attributed sample: 268 messages
Active dates: 6 UTC dates
Estimated median S/N: +2.5 dB
Estimated 10th-90th percentile: -6 to +13 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 2, moderate (-15 to -9 dB) 7, strong (≥ -8 dB) 259.

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 DL9MRF in decoded directed-looking exchanges:

EX7CQ · Kyrgyzstan JA7EVP · Japan JE7GXQ · Japan RC9WC · Asiatic Russia RU6C · European Russia BI3AMG · China JA4FKX · Japan RI1PC · European Russia DO9POL · Fed. Rep. of Germany RA0LQ · 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 DL9MRF

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: JO52 · 223 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 803 km (approx.)
Last such locator decoded: 2026-09-19 19:40 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	DL9MRF S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-19 19:38	160m	+3 / -14	EX7CQ	-6 / -10	7	✓ Full exchange observed
09-16 21:18	160m	+1 / -	RI1FJZ	- / -	9	Partial capture
09-16 20:53	160m	+3 / -	RI1FJZ	- / -16	6	Partial capture
09-16 19:12	160m	+3 / -	RI1FJZ	- / -20	165	Partial capture
09-16 19:01	160m	+6 / -	RI1FJZ	- / -	14	Partial capture
09-16 18:47	160m	+10 / -	RI1FJZ	- / -	5	Partial capture
09-15 19:12	160m	+12 / -	BD4UJ	- / -18	7	Partial capture
09-15 19:11	160m	+13 / -	JE7GXQ	- / -15	2	✓ Closing fragment
09-15 19:09	160m	+12 / -	RD7O	- / -10	3	Partial capture
09-15 19:07	160m	+12 / -	JA7EVP	- / -17	3	✓ Closing fragment
09-15 19:03	160m	- / -	RD7O	-7 / -	5	Partial capture
09-15 19:02	160m	+6 / -	RC9WC	- / -21	4	✓ Closing fragment
09-15 18:39	160m	+11 / -17	RU6C	+4 / -12	5	✓ Full exchange observed
08-26 20:21	80m	-7 / -	RI1FJL	- / -	3	Partial capture
08-26 19:27	80m	+12 / -	DO9POL	- / -11	2	✓ Closing fragment
08-26 19:25	80m	+12 / -	RA0LQ	- / -13	3	✓ Closing fragment
07-21 19:42	40m	-6 / -	BI3AMG	- / -17	3	✓ Closing fragment
07-21 19:36	40m	-8 / -	JA4FKX	- / -17	3	✓ Closing fragment
07-13 16:58	40m	+1 / -	RI1PC	- / -12	6	✓ Closing fragment
07-13 16:50	40m	0 / -	RI1PC	- / -	10	Partial capture
07-13 16:18	40m	-2 / -	RI1PC	- / -	11	Partial capture

Recent FT8 messages decoded at SO8OO

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

160m

UTC    dB Audio  Message
211845  -8 1085  RI1FJZ DL9MRF JO52 (x8)
193815  +3 1084  EX7CQ DL9MRF JO52 (x3)
194030  -5 1690  DL9MRF EX7CQ -14
194045  +2 1144  EX7CQ DL9MRF R-10
194100  -8 1690  DL9MRF EX7CQ RR73
194115  +1 1143  EX7CQ DL9MRF 73

80m

UTC    dB Audio  Message
192530  +8  982  RA0LQ DL9MRF JO52 (x3)
192730 +13  982  DO9POL DL9MRF -11 (x2)
202145  -5 2982  RI1FJL DL9MRF JO52 (x3)

40m

UTC    dB Audio  Message
165445  -1 2710  RI1PC DL9MRF JO52 (x8)
170215  -8  450  RX3AJM DL9MRF -06
193600  -9 2588  JA4FKX DL9MRF JO52 (x3)
194215  -6  408  BI3AMG DL9MRF JO52 (x3)

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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