DL1YTT — reception at SO8OO

Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.

FT8 activity

DXCC entity inferred from callsign: Fed. Rep. of Germany Most frequent locator attributed to this token: JO31

Receiver-side FT8 activity involving DL1YTT, decoded by SO8OO in southeastern Poland. 159 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 7 UTC dates in the available aggregate history. Observed between 2026-07-17 and 2026-10-23.

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 159 FT8 messages attributed to DL1YTT as the transmitting token by decoded message structure across 7 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (77%), followed by 80 m (21%) and 20 m (2%). Several six-hour UTC windows tied for the largest share (90%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (61%); the estimated median was -6 dB.

Overview

159

Messages attributed

UTC dates decoded

Active 15-min windows

-6 dB

Estimated median S/N

Bands

80m · 34 40m · 122 20m · 3

First attributed message: 2026-07-17
Last attributed message: 2026-10-23 16:01 UTC

Observed FT8 message patterns

Attributed sample: 159 messages
Active dates: 7 UTC dates
Estimated median S/N: -6 dB
Estimated 10th-90th percentile: -18 to +1 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 31, moderate (-15 to -9 dB) 31, strong (≥ -8 dB) 97.

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 DL1YTT in decoded directed-looking exchanges:

EA5EBD · Spain EA7DJN · Spain EA8BIA · Canary Islands F4HSB · France GJ0KYZ · Jersey HF5A · Poland IK2ZJR · Italy IW2ODG · Italy K3RH · United States KC4WQ · United States OH1LA · Finland OM6APJ · Slovak Republic

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 DL1YTT

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: JO31 · 70 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,054 km (approx.)
Last such locator decoded: 2026-10-23 16:00 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	DL1YTT S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-23 16:00	80m	+2 / +4	DK0KG	-6 / -	5	✓ Full exchange observed
10-23 15:58	80m	0 / -2	OK1VKX	+9 / +1	4	✓ Full exchange observed
10-23 15:56	80m	-4 / -22	UA4FKT	+8 / -10	6	✓ Full exchange observed
10-23 15:54	80m	-5 / -	IZ2SXZ	- / -21	2	✓ Closing fragment
10-23 15:53	80m	- / +7	DL5AX	-5 / -	2	✓ Closing fragment
10-23 15:00	40m	-7 / -16	R7LC	-7 / +3	4	✓ Full exchange observed
10-23 15:00	40m	- / -5	RC9WC	-6 / -	3	Partial capture
10-10 04:50	40m	- / -3	RC1C	-2 / -	4	✓ Closing fragment
10-10 04:31	40m	- / -10	RZ6HBF	-6 / -	2	✓ Closing fragment
10-10 04:07	40m	- / -10	TA3NK	-1 / -	4	✓ Closing fragment
10-03 06:35	40m	-2 / -19	US1MM	-3 / -8	7	✓ Full exchange observed
10-03 06:35	40m	-3 / -10	HF5A	0 / -1	3	✓ Full exchange observed
10-03 06:30	40m	-4 / +3	GJ0KYZ	-11 / +6	4	Partial capture
10-03 06:29	40m	-6 / -	F4HSB	-18 / +5	3	✓ Closing observed
10-03 06:25	40m	-5 / -	V31MA	- / -20	4	✓ Closing fragment
09-26 06:50	40m	-18 / -	K3RH	- / -13	3	✓ Closing fragment
09-26 06:49	40m	-20 / -	EA7DJN	- / -	2	✓ Closing fragment
09-26 06:45	40m	-18 / -4	RN1TV	-1 / +1	8	✓ Full exchange observed
09-26 06:45	40m	-16 / -	GJ0KYZ	-14 / +7	3	✓ Closing observed
09-26 06:45	40m	-14 / +4	SQ2PHC	-8 / +6	5	✓ Full exchange observed
09-26 06:39	40m	-20 / -	SK3GA	- / -4	2	✓ Closing fragment
09-26 06:32	40m	-14 / -11	IK2ZJR	-14 / -	4	✓ Closing observed
08-24 05:13	40m	- / -	SP2ZST	-18 / -	2	✓ Closing fragment
08-24 05:11	40m	- / -8	YL3GAO	-1 / -	5	Partial capture
08-24 05:08	40m	-6 / -	WA4TED	- / -14	3	✓ Closing fragment
08-24 05:07	40m	-9 / -	KC4WQ	- / -12	2	✓ Closing fragment
08-24 05:03	40m	-3 / -	EA5EBD	- / -18	3	✓ Closing fragment
08-24 05:01	40m	+2 / -	OH1LA	- / -15	2	✓ Closing fragment
08-24 04:40	80m	-6 / -	EA5HM	- / -5	2	✓ Closing fragment
08-24 04:38	80m	-5 / -	DJ3HW	+1 / -	5	✓ Full exchange observed
08-24 04:38	80m	-4 / -	MM0KQC	- / +3	2	✓ Closing fragment
08-24 04:35	80m	-1 / -	F4LZZ	- / -5	2	Partial capture
08-24 04:34	80m	-3 / +1	IU1TLG	-11 / +1	7	✓ Full exchange observed
08-24 04:34	80m	-1 / -	DO3MY	- / -19	2	✓ Closing fragment
08-08 11:18	20m	-12 / +3	UT4QM	-13 / +10	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
155645  -4 1323  UA4FKT DL1YTT RR73
155700  +9 1322  DL1YTT UA4FKT R-22
155715  -2 1324  UA4FKT DL1YTT RR73
155800  +4 1324  DL1YTT OE5DML JN78
155815  +0 1324  OK1VKX DL1YTT +01
155830  +8 1323  DL1YTT OK1VKX R-02
155845  +1 1324  OK1VKX DL1YTT RR73
155900 +10 1323  DL1YTT OK1VKX 73
155930  +1 1324  CQ DL1YTT JO31 (x2)
160015  -3 1279  DL1YTT DK0KG JN49
160030  +1 1324  DK0KG DL1YTT +13
160045  -4 1197  DL1YTT DK0KG R+04
160100  +2 1324  DK0KG DL1YTT RR73
160115 -11 1197  DL1YTT DK0KG 73

40m

UTC    dB Audio  Message
043130  -8  695  DL1YTT RZ6HBF -10 (x2)
044630 -21 1634  DL1YTT EA8BIA RR73
045030  -1 1596  DL1YTT RC1C KP50 (x4)
150045  -5 1321  DL1YTT RC9WC -05
150045  -5 1699  DL1YTT R7LC LN08
150100  -7 1700  R7LC DL1YTT +03
150115  -6 1321  DL1YTT RC9WC -05
150115 -10 1700  DL1YTT R7LC R-16
150145  -7 1322  DL1YTT RC9WC -05
150145  -6 1699  DL1YTT R7LC 73
154915  -1 1268  5Q1X DL1YTT JO31

20m

UTC    dB Audio  Message
111800  -7  725  CQ DL1YTT JO31
111830 -12  725  UT4QM DL1YTT +10
111845 -13  730  DL1YTT UT4QM R+03
111930  -6  725  IZ4JMA DL1YTT +09

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.

CW

CW history is temporarily unavailable.

Explore CW reception at SO8OO

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