UT1EF — 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: Ukraine Most frequent locator attributed to this token: KN67

Receiver-side FT8 activity involving UT1EF, decoded by SO8OO in southeastern Poland. 850 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, 10m, across 73 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-10-22.

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 850 FT8 messages attributed to UT1EF as the transmitting token by decoded message structure across 73 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (29%), followed by 40 m (28%) and 20 m (27%). Most decodes (55%) fell within the six-hour window 15:00-21:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (63%); the estimated median was -6 dB.

Overview

850

Messages attributed

UTC dates decoded

184

Active 15-min windows

-6 dB

Estimated median S/N

Bands

160m · 57 80m · 250 40m · 234 20m · 226 10m · 83

First attributed message: 2026-06-06
Last attributed message: 2026-10-22 17:06 UTC

Observed FT8 message patterns

Attributed sample: 850 messages
Active dates: 73 UTC dates
Estimated median S/N: -6 dB
Estimated 10th-90th percentile: -16 to +7 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 92, moderate (-15 to -9 dB) 224, strong (≥ -8 dB) 534.

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 UT1EF in decoded directed-looking exchanges:

DH8BQA · Fed. Rep. of Germany ×2 OH5KNL · Finland ×2 SX2LGT · Greece ×2 DM5KM · Fed. Rep. of Germany ×2 UT2PC · Ukraine ×2 E75C · Bosnia-Herzegovina ×2 OE6JVE · Austria ×2 DF6QN · Fed. Rep. of Germany DL1AAH · Fed. Rep. of Germany LZ2IP · Bulgaria OH3NXW · Finland OK1TP · Czech 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 UT1EF

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: KN67 · 542 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 865 km (approx.)
Last such locator decoded: 2026-10-22 17:06 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	UT1EF S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-22 17:09	40m	- / -14	ON6WDL	+16 / -	2	✓ Closing fragment
10-22 17:02	80m	-6 / -	YO2UKG	- / -	5	Partial capture
10-17 08:56	10m	-6 / -	7Z1WW	- / -	2	Partial capture
10-15 18:11	80m	-24 / -	YT2ZEZ	+2 / -7	2	✓ Closing observed
10-15 18:06	80m	-5 / -	YT2ZEZ	- / -	3	Partial capture
10-15 17:55	80m	+3 / -8	US7KC	+12 / 0	4	✓ Full exchange observed
10-15 17:15	40m	-4 / -	SP5ROM	- / -	2	Partial capture
10-15 17:09	40m	-9 / +8	SM7XON	-20 / -2	7	✓ Full exchange observed
10-13 16:09	80m	-6 / -	YO3KWJ	- / -7	11	✓ Closing fragment
10-13 03:37	80m	0 / -	EA5JK	- / -	7	Partial capture
10-13 03:33	80m	-10 / +10	LY5A	-8 / +1	5	✓ Full exchange observed
10-12 23:41	80m	-6 / -4	DK7QJ	-2 / -15	6	✓ Full exchange observed
10-12 23:40	80m	- / -2	DO6MFD	+6 / -	2	✓ Closing fragment
10-12 23:22	80m	-3 / -6	DF2RG	+9 / -8	8	✓ Full exchange observed
10-12 23:22	80m	-3 / -14	DK8HC	+3 / -13	9	✓ Full exchange observed
10-12 23:20	80m	+1 / -4	5B4AMX	-4 / +5	5	✓ Full exchange observed
10-11 20:51	80m	-9 / -5	IV3IHV	+6 / -	4	✓ Closing observed
10-11 20:00	40m	-10 / -	BG0FQU	- / -8	4	✓ Closing fragment
10-11 19:56	40m	-10 / -	EY7BM	- / -3	3	Partial capture
10-06 17:46	40m	-5 / -	BG0FQU	- / -8	3	Partial capture
10-06 17:41	40m	-5 / -	G3VCQ	- / -16	5	Partial capture
10-06 17:38	40m	- / +7	YO3AI	-8 / -	2	✓ Closing fragment
10-06 16:55	40m	-4 / -	UR5WBO	- / -6	2	Partial capture
10-06 16:52	40m	-6 / -23	PD4FL	-11 / -	4	✓ Closing observed
10-06 16:50	40m	+2 / -	OZ1A	-11 / -	2	✓ Closing observed
10-06 16:26	40m	-8 / -	BG0FQU	- / -	2	Partial capture
10-06 16:21	40m	-5 / -	YT3IN	-8 / -6	6	✓ Closing observed
10-05 19:13	160m	-11 / -16	SX2LGT	-17 / -14	5	✓ Full exchange observed
10-05 18:30	160m	-10 / -15	SV1BLD	-9 / -1	11	✓ Full exchange observed
10-05 18:27	160m	-17 / -8	OH5KNL	+10 / -14	5	✓ Full exchange observed
10-04 19:10	80m	-7 / +2	OE3HPT	+2 / -	3	✓ Closing observed
10-04 19:03	80m	-12 / -	JG3TRB	- / -14	2	✓ Closing fragment
10-04 19:02	80m	-8 / -	LZ2IP	- / -	2	Partial capture
10-04 18:54	160m	-9 / -11	LZ2IP	+4 / -	3	✓ Full exchange observed
10-04 18:51	160m	-11 / -18	SP7IIT	+12 / -14	6	✓ Full exchange observed
10-02 19:50	80m	-12 / -	SX2LGT	- / -	2	✓ Closing fragment
09-29 17:36	160m	-8 / -	DJ7TO	- / -	3	Partial capture
09-29 17:33	80m	- / -	UA4FKT	+1 / -	4	Partial capture
09-29 17:32	80m	-15 / -17	DL0IR	+12 / -15	5	✓ Full exchange observed
09-29 17:29	40m	-10 / -	SP7OK	- / -	2	Partial capture
09-28 18:44	40m	-7 / +8	9A3MRN	+5 / +8	7	✓ Full exchange observed
09-27 02:03	80m	+8 / -	YO7WCB	- / -	11	Partial capture
09-27 02:01	80m	+10 / -4	DO3VE	+2 / -15	5	✓ Full exchange observed
09-27 01:59	80m	+8 / -	DO8JB	- / -	4	Partial capture
09-26 19:06	160m	-20 / -18	IW4AOT	+2 / -13	2	Partial capture
09-26 17:56	40m	-19 / -	EX7DY	- / -	2	Partial capture
09-25 16:47	40m	- / -5	YT3MD	-14 / -	2	Partial capture
09-25 16:43	40m	-17 / -	YO6BLM	- / -	2	Partial capture
09-24 19:56	160m	-12 / -	LZ1ZF	- / -	4	Partial capture
09-24 19:40	160m	-5 / -9	SV1DKR	-24 / -20	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
200315  -9 2656  BG0FQU UT1EF 73
201745 -14 2655  LZ4KE UT1EF KN67
042045  -5  832  UT1EF TA2EC -13
170900  -6 2647  SM7XON UT1EF KN67 (x3)
171045 -19 2439  UT1EF SM7XON +08
171100 -10 2647  SM7XON UT1EF R-02
171115 -20 2439  UT1EF SM7XON RR73
171130 -11 2647  SM7XON UT1EF 73
171515  -2 2647  SP5ROM UT1EF KN67 (x2)
170915 +18 2868  UT1EF ON6WDL -14 (x2)
171845 -17  798  UT1EF SP5ALV R-11

80m

UTC    dB Audio  Message
175615 +14 1902  UT1EF US7KC RR73
175630  +5 2567  US7KC UT1EF 73
180000  +6  577  UT1EF S58T -09
180015  +0 2567  YO2UKG UT1EF KN67
180630  -5 2567  YT2ZEZ UT1EF KN67 (x3)
180830  -1 2567  F6IRF UT1EF KN67
181100 -24 2567  YT2ZEZ UT1EF R-07
181115  +2  588  UT1EF YT2ZEZ RR73
170230  -8 2210  YO2UKG UT1EF KN67 (x5)

10m

UTC    dB Audio  Message
105815 -12 1077  UT1EF DO8TBO RRR (x2)
105900 +14 2927  UT1EF DF6QN -09
105915 -13 1078  UT1EF DO8TBO RRR
105930 +18 2927  UT1EF DF6QN RR73
105945 -16 1078  UT1EF DO8TBO RRR (x4)
110200  -9 1295  UT1EF DN9JGL -24
110215 -15 1077  UT1EF DO8TBO RRR
110230 -13 1294  UT1EF DN9JGL -24
085500 -11 2664  BI6PWL UT1EF KN67
085630  -5 2663  7Z1WW UT1EF KN67 (x2)

160m

UTC    dB Audio  Message
183115  -8 2314  SV1BLD UT1EF KN67 (x3)
183300  -6 2395  UT1EF SV1BLD -15
183315 -10 2314  OM3SX UT1EF KN67
183345  -8 2314  SV1BLD UT1EF R-01
183400 -16 2395  UT1EF SV1BLD RRR
183415 -14 2314  SV1BLD UT1EF R-01
183430  -6 2395  UT1EF SV1BLD RRR
183445 -12 2314  SV1BLD UT1EF 73
191315 -15 2314  SX2LGT UT1EF KN67
191330 -17 1900  UT1EF SX2LGT -16
191345  -6 2314  SX2LGT UT1EF R-14
191400 -17 1899  UT1EF SX2LGT RR73
191415 -11 2314  SX2LGT UT1EF 73

20m

UTC    dB Audio  Message
170845  +1 2036  UT1EF 7Z1BM -06
172200  -2  716  UT1EF YL3GQ -12
182800  -7 1787  SP2FTL UT1EF KN67 (x4)
191730  -9 1788  S51BB UT1EF 73
192130 -12 1788  DL7HS UT1EF 73
074745 -13 2506  LZ1ZJ UT1EF R-09
074800  -8 1179  UT1EF LZ1ZJ RR73
074815 -18 2507  LZ1ZJ UT1EF 73
150630 -21 1402  UT1EF IW3FOI RR73
130045 -13  933  UT1EF SV0LS -11 (x2)
094330  -4 2488  PC9F UT1EF KN67

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

No CW receptions recorded for this callsign in the last 30 days.

Explore CW reception at SO8OO

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