DL3RDO — 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 DL3RDO, decoded by SO8OO in southeastern Poland. 1,754 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, 10m, across 57 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-09-15.

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 1,754 FT8 messages attributed to DL3RDO as the transmitting token by decoded message structure across 57 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (36%), followed by 40 m (32%) and 20 m (16%). Most decodes (80%) 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 (67%); the estimated median was -4 dB.

Overview

1,754

Messages attributed

UTC dates decoded

196

Active 15-min windows

-4 dB

Estimated median S/N

Bands

80m · 639 60m · 199 40m · 565 20m · 285 10m · 66

First attributed message: 2026-06-07
Last attributed message: 2026-09-15 21:22 UTC

Observed FT8 message patterns

Attributed sample: 1,754 messages
Active dates: 57 UTC dates
Estimated median S/N: -4 dB
Estimated 10th-90th percentile: -15.4 to +7 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 175, moderate (-15 to -9 dB) 401, strong (≥ -8 dB) 1,178.

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 DL3RDO in decoded directed-looking exchanges:

F1PBZ · France ×3 UT6HN · Ukraine ×3 LZ1JZ · Bulgaria ×2 OZ5AGJ · Denmark ×2 9A4ZM · Croatia ×2 PD2TX · Netherlands ×2 SV2HTW · Greece ×2 TN8GD · Republic of the Congo ×2 DL1IP · Fed. Rep. of Germany ×2 DM2BM · Fed. Rep. of Germany ×2 E75C · Bosnia-Herzegovina ×2 HB9HSJ · Switzerland ×2

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 DL3RDO

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 · 915 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 658 km (approx.)
Last such locator decoded: 2026-09-15 21:21 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	DL3RDO S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-15 21:21	80m	-2 / -	HB9EUP	- / -7	3	✓ Closing fragment
09-15 21:14	80m	+8 / -11	YO6BLM	+10 / -17	5	✓ Full exchange observed
09-15 21:09	80m	-2 / -12	SV7LWI	0 / -4	6	✓ Full exchange observed
09-15 21:05	80m	+6 / -	UT5UGR	- / -	3	Partial capture
09-15 21:02	80m	-7 / -3	F1IQH	-24 / -13	3	✓ Full exchange observed
09-15 21:01	80m	-6 / -14	UA6YW	+13 / -8	7	✓ Full exchange observed
09-15 20:59	80m	-9 / +2	DL6MRM	+3 / -	3	✓ Closing observed
09-15 20:57	80m	-10 / -	SP0YAGI	- / -10	2	Partial capture
09-15 20:56	80m	+9 / -1	E75C	0 / -17	5	✓ Full exchange observed
09-15 04:01	40m	- / -12	IZ8PPI	-23 / -	3	Partial capture
09-15 03:50	40m	- / -2	EC6DX	-7 / -	2	✓ Closing fragment
09-15 03:24	60m	- / -20	TA2K	-12 / -	2	Partial capture
09-15 03:17	60m	- / -20	UR9QQ	-8 / -	4	✓ Closing fragment
09-15 03:16	60m	- / -10	LZ2VQ	+15 / -	3	✓ Closing fragment
09-15 03:15	60m	- / +8	F5RMK	-16 / -	2	✓ Closing fragment
09-12 21:25	80m	-4 / +5	EH3ST	-2 / -	4	✓ Closing observed
09-12 21:24	80m	+6 / -	DD8BA	- / -	2	Partial capture
09-12 21:22	80m	+5 / -	OL900LTV	- / -13	2	Partial capture
09-12 21:21	80m	- / -	EU4ABJ/P	-2 / -	2	Partial capture
09-12 21:20	80m	+8 / -	UB3ADO/P	- / -13	2	Partial capture
09-12 21:19	80m	+10 / -3	G7RAU	-4 / -	5	✓ Closing observed
09-12 21:18	80m	+8 / -	R4AGE/P	- / -	2	Partial capture
09-12 21:16	80m	+8 / +2	DO1MYK	0 / +8	7	✓ Full exchange observed
09-12 21:14	80m	+6 / -	ON5GQ	+13 / -7	4	✓ Closing observed
09-12 21:11	40m	+4 / -	E75C	-7 / -11	4	✓ Closing observed
09-12 21:09	40m	-3 / -	4O4DB	- / -	4	Partial capture
09-12 21:07	40m	-5 / -	SQ2RBY/P	- / -	2	Partial capture
09-12 21:06	40m	-4 / +2	F1BBM	-12 / -	3	✓ Closing observed
09-10 21:29	80m	+12 / -	DF6DBF	-5 / +6	6	✓ Full exchange observed
09-10 21:26	80m	+12 / -10	R0QBB/3	+10 / -	4	Partial capture
09-10 21:24	80m	+6 / +10	DO7BE	+4 / -14	5	✓ Full exchange observed
09-10 21:23	80m	+9 / -	DK1MCS	+7 / +8	4	✓ Full exchange observed
09-10 21:21	80m	+3 / -	DK0NID	+6 / 0	5	✓ Full exchange observed
09-10 21:14	80m	+13 / 0	DO5GSH	-11 / -	3	Partial capture
09-10 21:12	80m	+11 / -	5P1KZX	- / -	3	Partial capture
09-10 21:10	80m	+8 / +10	DF6DBF	-4 / -	7	Partial capture
09-10 21:09	80m	+7 / +4	DO9MH	-5 / -12	5	✓ Full exchange observed
09-10 21:06	80m	+5 / -	DA6PI	- / -13	4	✓ Closing fragment
09-10 20:56	40m	- / -	EH2PDA	-12 / -	2	✓ Closing fragment
09-10 07:11	40m	-12 / -	SM7HZK	- / -4	3	✓ Closing fragment
09-10 07:09	40m	-16 / -	TF5B	- / -	3	Partial capture
09-09 21:03	80m	-3 / -2	YT1MP	+10 / 0	13	✓ Full exchange observed
09-09 20:57	80m	+2 / -	DH5BO	-9 / -2	5	✓ Full exchange observed
09-09 20:56	80m	+4 / -	HF100PKP	- / -	2	Partial capture
09-09 20:54	80m	+2 / -	G4BWP	- / -	3	Partial capture
09-09 20:53	80m	+3 / -	YL3KZ	- / -	2	Partial capture
09-09 20:50	80m	+6 / +4	DO9AO	+4 / -	5	✓ Full exchange observed
09-09 20:49	80m	+5 / -	LA7KJ	- / -16	3	✓ Closing fragment
09-09 20:47	80m	+5 / -8	UR7FM	-5 / -20	5	✓ Full exchange observed
09-09 20:45	80m	0 / -	UX5UO	- / -	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
210945  -8 1170  SV7LWI DL3RDO JN68 (x2)
211030  -1 2001  DL3RDO SV7LWI -12
211045  +3 1133  SV7LWI DL3RDO R-04
211100  +1 2001  DL3RDO SV7LWI RR73
211115  -2 1133  SV7LWI DL3RDO 73
211430  +9 1133  YO6BLM DL3RDO JN68
211445  +9  864  DL3RDO YO6BLM -11
211500 +11 1133  YO6BLM DL3RDO R-17
211515 +10  864  DL3RDO YO6BLM RR73
211530  +4 1133  YO6BLM DL3RDO 73
211800  +5 1259  DL3RDO LZ123RF -15
212100  -2 1133  HB9EUP DL3RDO JN68 (x3)

40m

UTC    dB Audio  Message
210800  -6 1141  SQ2RBY/P DL3RDO JN68
210930  -7 1141  4O4DB DL3RDO JN68 (x4)
211130  -2 1141  E75C DL3RDO JN68 (x2)
211215  -7 1643  DL3RDO E75C RR73
211230 +10 1141  E75C DL3RDO 73
035000  -6 2444  DL3RDO EC6DX -02 (x2)
040145 -23 1531  DL3RDO IZ8PPI -12 (x3)
204445 -19 1257  DL3RDO F5SJC RR73

60m

UTC    dB Audio  Message
203715 +10  971  DL3RDO DC7KM -02
203730  +0 1551  DL3RDO ON7GB JO21 (x3)
031530 -16 1437  DL3RDO F5RMK +08 (x2)
031630 +18 2480  DL3RDO LZ2VQ KN23 (x2)
031730  -8 1836  DL3RDO UR9QQ KN77
031730 +13 2480  DL3RDO LZ2VQ 73
031800  -9 1836  DL3RDO UR9QQ KN77 (x3)
032400 -14 1223  DL3RDO TA2K -20 (x2)

20m

UTC    dB Audio  Message
071000  -3 2184  UR5WCS DL3RDO JN68 (x2)
071100  -4 2185  OH1LA DL3RDO -21 (x3)
071230  -8 2184  US3LX DL3RDO JN68 (x2)
071330  -1 2184  OH1LA DL3RDO -21
071400  -1 2184  US3LX DL3RDO JN68 (x2)
071445 -12 1523  DL3RDO US3LX -14
071500  -2 2184  US3LX DL3RDO R-13
071515 -12 1522  DL3RDO US3LX RR73
071530  +1 2184  US3LX DL3RDO 73
080015  -9 1634  SA7BKX DL3RDO JN68

10m

UTC    dB Audio  Message
151700 -14 1058  UR5KCR DL3RDO JN68 (x4)
152200 -20 1915  UT5ECZ DL3RDO R-02 (x2)
152800 -24 1616  SQ8V DL3RDO R+05
153645 -18 1726  TA1BX DL3RDO JN68
070300 -13 1883  DL3RDO DN9SGE JO42 (x3)
071230  -8 1796  DL3RDO PA3EVY +00
134730 -14 2050  DL3RDO G4CUS +10 (x2)
084515 -23 2015  DL3RDO IW8PQ +20

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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