ER3UA — 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: Moldova Most frequent locator attributed to this token: KN37

Receiver-side FT8 activity involving ER3UA, decoded by SO8OO in southeastern Poland. 5,744 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, across 105 UTC dates in the available aggregate history. Observed between 2026-06-14 and 2026-11-06.

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 5,744 FT8 messages attributed to ER3UA as the transmitting token by decoded message structure across 105 UTC dates in the available aggregate history. The largest monitored-band total was 60 m (83%), followed by 160 m (7%) and 80 m (7%). Most decodes (64%) 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 (85%); the estimated median was -2.2 dB.

Overview

5,744

Messages attributed

105

UTC dates decoded

470

Active 15-min windows

-2.2 dB

Estimated median S/N

Bands

160m · 403 80m · 395 60m · 4,748 40m · 189 20m · 9

First attributed message: 2026-06-14
Last attributed message: 2026-11-06 00:11 UTC

Observed FT8 message patterns

Attributed sample: 5,744 messages
Active dates: 105 UTC dates
Estimated median S/N: -2.2 dB
Estimated 10th-90th percentile: -10.4 to +3.4 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 178, moderate (-15 to -9 dB) 709, strong (≥ -8 dB) 4,857.

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 ER3UA in decoded directed-looking exchanges:

4O7CC · Montenegro ×4 DL6MRM · Fed. Rep. of Germany ×3 LA9JKA · Norway ×3 LY8O · Lithuania ×3 SQ2BXI · Poland ×3 SV2AEL · Greece ×3 EA5RU · Spain ×3 YO4NT · Romania ×3 DD3KF · Fed. Rep. of Germany ×2 DF7EF · Fed. Rep. of Germany ×2 F4BPO · France ×2 IZ8VYU · Italy ×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 ER3UA

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: KN37 · 2,600 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 468 km (approx.)
Last such locator decoded: 2026-11-06 00:11 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	ER3UA S/N	Counterpart	Counterpart S/N	Msgs	Capture
11-06 00:13	40m	- / -5	SV9QWC	-18 / -	2	✓ Closing fragment
11-06 00:09	60m	-6 / +9	E75CC	-8 / -	5	✓ Full exchange observed
11-06 00:08	60m	-4 / -12	IU8LMC	-20 / -12	5	✓ Full exchange observed
11-05 21:32	40m	-10 / -	HL1HG	- / -13	4	✓ Closing fragment
11-05 21:28	60m	+2 / -1	SQ4INW	+2 / +1	5	✓ Full exchange observed
11-05 21:27	60m	-2 / -16	F1IQH	-11 / -10	5	✓ Full exchange observed
11-05 21:26	60m	-6 / -	SN5N	- / -	2	Partial capture
11-05 20:42	60m	-1 / -	9A4AA	- / -	2	Partial capture
11-05 20:40	60m	-10 / -18	S55X	-21 / -15	4	✓ Full exchange observed
11-05 20:32	80m	+1 / -24	PC6A	-3 / -16	6	✓ Full exchange observed
11-05 20:31	80m	-2 / -	JR1AIB	- / -	2	Partial capture
11-05 20:29	80m	-1 / -6	IZ1LAT	-7 / -11	6	✓ Full exchange observed
11-05 20:29	80m	-6 / -13	SP5JMA	+13 / +2	4	✓ Full exchange observed
11-05 20:27	80m	- / -16	YO3CNW	-14 / -	2	✓ Closing fragment
11-05 19:25	80m	- / -	UA4FKT	+1 / -	3	Partial capture
11-05 19:24	80m	+1 / -15	OD5ZZ	-20 / -12	4	✓ Full exchange observed
11-05 19:20	80m	+5 / -	JA8JTZ	- / -	9	Partial capture
11-05 19:19	80m	0 / -	JA6MWW	- / -	2	Partial capture
11-05 18:29	160m	-7 / -	OM3SX	- / -1	3	✓ Closing fragment
11-05 18:26	160m	-5 / -16	DL5BTE	-3 / -22	8	✓ Full exchange observed
11-05 18:26	160m	- / -	R6DAZ	-9 / -	13	Partial capture
11-05 18:25	160m	-9 / -	IZ8FWN	- / -	3	Partial capture
11-05 18:23	160m	-5 / -	ON6LEO	0 / -10	5	✓ Full exchange observed
11-05 17:05	40m	- / -	RM1B	-6 / -	4	Partial capture
11-04 22:54	60m	- / -7	VE1YX	-8 / -	2	Partial capture
11-04 22:52	60m	- / -4	HB9EBM	-1 / -	2	✓ Closing fragment
11-04 22:39	160m	-6 / -5	SO1CJ	-1 / -15	6	✓ Full exchange observed
11-04 22:37	160m	-6 / -8	IZ8VYU	-13 / -19	6	✓ Full exchange observed
11-04 22:36	160m	-15 / -10	SQ5N	+1 / -18	5	✓ Full exchange observed
11-04 21:26	80m	- / -8	LZ1ZF	+6 / -	4	✓ Closing fragment
11-04 21:25	80m	- / -13	RX3ASQ	+4 / -	3	✓ Closing fragment
11-04 21:23	80m	-12 / -13	MD0CCE	+1 / -11	4	✓ Full exchange observed
11-04 21:21	80m	-11 / -	JA0RUG	- / -19	4	✓ Closing fragment
11-04 21:19	80m	-10 / -	JA7JWF	- / -	2	Partial capture
11-04 21:17	80m	-11 / -	DO2MOG	- / -18	3	Partial capture
11-04 21:15	80m	- / -	EW8DU	-3 / -	6	Partial capture
11-04 21:15	80m	- / +1	SP5KG	-4 / -	2	✓ Closing fragment
11-04 19:36	80m	- / -9	OZ9FF	+4 / -	2	✓ Closing fragment
11-04 19:32	80m	-6 / -	EX7DY	- / -	2	Partial capture
11-04 19:28	160m	- / -8	RU3ACA	-5 / -	3	Partial capture
11-04 19:28	160m	-12 / -16	DJ5IW	+4 / -19	9	✓ Full exchange observed
11-04 19:25	40m	- / -	DM1EE	-9 / -	4	Partial capture
11-04 19:24	40m	- / -	RC1C	-20 / -	2	Partial capture
11-04 06:18	40m	- / -15	IK4JPP	-12 / -	2	✓ Closing fragment
11-04 06:17	40m	- / -11	UX7QV	+6 / -	3	✓ Closing fragment
11-04 06:15	40m	-3 / -	YO8CNA	- / -	2	Partial capture
11-03 21:59	160m	- / -	OM0RX	-4 / -	4	Partial capture
11-03 21:57	160m	-2 / +3	SP6LUV	+2 / -17	7	✓ Full exchange observed
11-03 21:55	160m	-4 / -8	SM4AZQ	-4 / -19	7	✓ Full exchange observed
11-03 21:54	160m	- / -	DM1SV	-5 / -	30	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
170500  -3 2290  ER3UA RM1B KO59 (x4)
213130  -8 2438  DM1SV ER3UA KN37
213200 -10 2438  HL1HG ER3UA -13 (x4)
213430  +0 2438  CQ ER3UA KN37
213445 -12 2439  ER3UA R5AV -13
213515 -13  940  ER3UA DH8FAC JN49
001315 -18 1916  ER3UA SV9QWC -05 (x2)
001445 -20 2118  ER3UA VO1HH -13

60m

UTC    dB Audio  Message
212915  -1 2432  SQ4INW ER3UA RR73
212930  +2  760  ER3UA SQ4INW 73
212945  -1 2432  CQ ER3UA KN37
000815  -2 2142  IU8LMC ER3UA KN37
000830 -18 2142  ER3UA IU8LMC -12
000845  -7 2142  IU8LMC ER3UA R-12
000900 -21 2142  ER3UA IU8LMC RR73
000915  -3 2142  IU8LMC ER3UA 73
000930  -9 1917  ER3UA E75CC JN93
000945  -5 2142  E75CC ER3UA +14
001000  -7 1917  ER3UA E75CC R+09
001015  -6 2142  E75CC ER3UA RR73
001030  -9 1916  ER3UA E75CC 73
001045  -4 2142  CQ ER3UA KN37 (x2)

80m

UTC    dB Audio  Message
203030  +0 2352  IZ1LAT ER3UA -11
203045  -6 1274  ER3UA IZ1LAT R-06
203100  -2 2352  IZ1LAT ER3UA RR73
203115  -7 1274  ER3UA IZ1LAT 73
203130  -4 2352  JR1AIB ER3UA KN37
203215  -2 1007  ER3UA PC6A JO21
203230  +1 2351  JR1AIB ER3UA KN37
203245  +0 1007  ER3UA PC6A JO21
203300  -2 2352  PC6A ER3UA -16
203315  -3 1007  ER3UA PC6A R-24
203330  +4 2352  PC6A ER3UA RR73
203345  -6 1007  ER3UA PC6A 73
203400  -3 2351  CQ ER3UA KN37 (x3)

160m

UTC    dB Audio  Message
182745  -3 2406  DL5BTE ER3UA R-22
182800  -7 1623  ER3UA R6DAZ KN96
182800  -3 1034  ER3UA DL5BTE RR73
182815  -6 2406  DL5BTE ER3UA 73
182830  -7 1623  ER3UA R6DAZ KN96 (x2)
182915  -8 2406  OM3SX ER3UA KN37
182930  -9 1624  ER3UA R6DAZ KN96
182945  -8 2406  OM3SX ER3UA R-01
183000 -10 1623  ER3UA R6DAZ KN96
183015  -4 2406  OM3SX ER3UA 73
183030  -4 1623  ER3UA R6DAZ KN96 (x4)

10m

UTC    dB Audio  Message
130900 -10 2093  ER3UA 7Z1DH -09 (x2)
103430  -5  446  ER3UA 5R8IC -02
145745 -11 2587  ER3UA CE2SV -19 (x3)
092345 -20 1669  ER3UA JY5IB 73

20m

UTC    dB Audio  Message
134930  -6 2478  ER3UA G7LHK R-21 (x3)
164330  -5 2728  ER3UA OH3OJ -12
164330  +4 1962  ER3UA EB3JT JN01
164400  -1  923  ER3UA LA6RJA -09
164400  +0 1961  ER3UA EB3JT R-12 (x2)
164800  +6  786  ER3UA LA6RJA RR73
164830  -2 2728  ER3UA OH3OJ -13 (x2)
165000  +0 1962  ER3UA UA4FEN -01 (x4)

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

2 CW reception events in the last 30 days.

40m: 2 events; last heard 2026-10-18 05:58 UTC

Latest CW receptions

UTC	Band	kHz	S/N · 500 Hz	WPM	Listen
2026-10-18 05:58:59	40m	7034.026	9.8 dB	21.3	WebSDR ↗
2026-10-18 05:53:54	40m	7033.541	12.5 dB	20.9	WebSDR ↗

CW reception history

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