IW4ECF — 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: Italy Most frequent locator attributed to this token: JN54

Receiver-side FT8 activity involving IW4ECF, decoded by SO8OO in southeastern Poland. 990 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 31 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-10-06.

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 990 FT8 messages attributed to IW4ECF as the transmitting token by decoded message structure across 31 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (72%), followed by 10 m (12%) and 80 m (8%). Most decodes (57%) fell within the six-hour window 04:00-10:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (83%); the estimated median was +1 dB.

Overview

990

Messages attributed

UTC dates decoded

Active 15-min windows

+1 dB

Estimated median S/N

Bands

80m · 84 40m · 709 20m · 82 10m · 115

First attributed message: 2026-06-07
Last attributed message: 2026-10-06 05:07 UTC

Observed FT8 message patterns

Attributed sample: 990 messages
Active dates: 31 UTC dates
Estimated median S/N: +1 dB
Estimated 10th-90th percentile: -12 to +11 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 30, moderate (-15 to -9 dB) 142, strong (≥ -8 dB) 818.

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 IW4ECF in decoded directed-looking exchanges:

F1PBZ · France ×3 UA3WG · European Russia ×2 GJ0KYZ · Jersey ×2 GU0SUP · Guernsey ×2 IU2WKL · Italy ×2 EX8BT · Kyrgyzstan F4NLW/P · France PD2K · Netherlands PE1GIX · Netherlands RW4HRE · European Russia SQ1RTU · Poland UA4FKT · European 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 IW4ECF

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: JN54 · 477 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,013 km (approx.)
Last such locator decoded: 2026-10-06 05:07 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	IW4ECF S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-06 05:05	80m	+3 / -1	DM5CF	+6 / -19	4	✓ Full exchange observed
10-06 05:05	80m	- / -	HF5A	-2 / -	2	Partial capture
10-05 18:05	80m	- / -	RV3V	+4 / -	2	Partial capture
10-05 18:05	80m	+4 / -	R7DX	- / -4	2	✓ Closing fragment
10-05 18:04	80m	+2 / -	HB3YOY	- / -11	2	✓ Closing fragment
10-05 04:57	80m	- / -8	GM6URC	-16 / -	2	Partial capture
10-05 04:49	80m	0 / -	EB1LA	- / -15	2	✓ Closing fragment
10-05 04:48	80m	-3 / -4	DO4DXA	+12 / -12	8	✓ Full exchange observed
10-05 04:48	80m	-4 / -8	DO5PY	-7 / -7	5	✓ Full exchange observed
10-04 05:22	40m	+5 / -5	MW7RHR	-11 / -13	5	✓ Full exchange observed
10-04 05:20	40m	+2 / -	EA4IPN	- / -18	2	✓ Closing fragment
10-04 05:16	40m	+4 / +1	GJ0KYZ	-4 / +2	5	✓ Full exchange observed
10-04 05:15	40m	+5 / -	RY4D	- / -16	2	✓ Closing fragment
10-04 05:13	40m	+5 / -	OZ5ABO	- / -10	2	✓ Closing fragment
10-04 05:12	40m	+15 / -	WF1B	- / -16	2	✓ Closing fragment
10-04 05:07	40m	+10 / -	HK3W	- / -19	5	Partial capture
10-04 05:03	40m	+10 / -14	HK3YL	-16 / -20	4	✓ Full exchange observed
10-04 05:01	40m	+12 / -	VE2LBI	- / -8	3	✓ Closing fragment
10-04 04:59	40m	+12 / -	K8OCN	- / -18	3	✓ Closing fragment
10-04 04:58	40m	+14 / -	NP4VA	- / -15	2	✓ Closing fragment
10-04 04:54	40m	+8 / -	SQ8ESR	- / -18	4	✓ Closing fragment
10-04 04:52	40m	+4 / -11	HI3LER	-10 / -10	5	✓ Full exchange observed
10-04 04:51	40m	+7 / -	R3ICU	- / -11	2	✓ Closing fragment
09-23 04:59	40m	+13 / 0	GJ0KYZ	-1 / -15	4	✓ Full exchange observed
09-22 05:20	40m	+12 / -	K1HOW	- / -19	5	Partial capture
09-22 05:18	40m	+15 / -	HA5LB	- / -7	3	✓ Closing fragment
09-22 05:16	40m	+8 / -	JY5IB	- / -15	2	✓ Closing fragment
09-22 05:12	40m	+8 / -5	4O7CC	-2 / -9	4	✓ Full exchange observed
09-22 05:09	40m	+14 / +2	ER1CW	-8 / -13	4	✓ Full exchange observed
09-22 05:07	40m	+10 / -	KE9END	- / -19	3	✓ Closing fragment
09-22 05:05	40m	+10 / -	KC9USW	- / -23	2	Partial capture
09-22 05:05	40m	+10 / -12	UA3POG	-14 / -17	4	✓ Full exchange observed
09-22 05:03	40m	+14 / -	W3GO	- / -18	2	✓ Closing fragment
09-22 04:58	40m	+15 / -15	UA3WG	-8 / -10	5	✓ Full exchange observed
09-22 04:56	40m	+12 / -	F2VX/P	- / -17	3	Partial capture
09-19 05:20	40m	+7 / -	EA8BS	- / -10	4	Partial capture
09-19 05:17	40m	+7 / -19	EU4BIC	0 / -16	5	✓ Full exchange observed
09-19 05:14	40m	+8 / -	HK3W	- / -16	2	Partial capture
09-19 05:12	40m	+6 / -	DM2BM	+1 / -1	5	✓ Full exchange observed
09-17 09:28	40m	-8 / -5	IX1HPN	-15 / -6	5	✓ Full exchange observed
09-17 09:26	40m	-4 / -	II8IHBC	- / -2	3	Partial capture
09-17 09:25	40m	-8 / -	F4GUK	- / -15	2	✓ Closing fragment
09-17 09:21	40m	-11 / -	II8IHBC	- / -2	2	Partial capture
09-17 09:17	40m	-11 / -	DK1XAM	- / -14	2	✓ Closing fragment
09-17 09:13	40m	-6 / -	9A5MP	- / -18	3	✓ Closing fragment
09-17 09:11	40m	-9 / -	F1BOW	-16 / -6	3	✓ Full exchange observed
09-17 09:08	40m	-8 / -	OE8PIT	- / -4	2	✓ Closing fragment
09-17 05:43	40m	+8 / -	ON4STA	- / -14	4	Partial capture
09-17 05:40	40m	+5 / +5	G0BLB	-4 / -5	7	✓ Full exchange observed
09-17 05:40	40m	+8 / -13	RA3YAO	-13 / -15	5	✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
180615  +3 2341  CQ IW4ECF JN54 (x6)
050500  +4 2371  IW4ECF HF5A JO92
050515  +6 2484  CQ IW4ECF JN54
050545  +1 2484  DM5CF IW4ECF -19
050600  +5 2525  IW4ECF DM5CF R-01
050615  +5 2484  DM5CF IW4ECF RR73
050630  -7 2371  IW4ECF HF5A JO92
050630  +6 2525  IW4ECF DM5CF 73
050645  +4 2483  CQ IW4ECF JN54 (x2)

40m

UTC    dB Audio  Message
051915  +5 2377  CQ IW4ECF JN54 (x2)
052045  +4 2377  EA4IPN IW4ECF -18 (x2)
052145  +4 2377  CQ IW4ECF JN54
052200 -17 2378  IW4ECF MW7RHR IO73
052215  +5 2377  MW7RHR IW4ECF -13
052230  -8 2378  IW4ECF MW7RHR R-05
052245  +5 2377  MW7RHR IW4ECF RR73
052300  -7 2378  IW4ECF MW7RHR 73
052315  +7 2377  CQ IW4ECF JN54 (x5)

10m

UTC    dB Audio  Message
075445 -10 2471  CQ IW4ECF JN54 (x3)
074415  +3 2243  F4NLW/P IW4ECF -14 (x2)
074545  -8 2243  CQ IW4ECF JN54 (x3)
074715  +0 2242  RW4HRE IW4ECF -19 (x2)
074815  -3 2242  CQ IW4ECF JN54 (x3)
160645 -11 2494  CX1AZ IW4ECF -15
160815 -15 2495  CQ IW4ECF JN54

20m

UTC    dB Audio  Message
182245  -6 2625  CQ IW4ECF JN54
182300  -8 2572  IW4ECF F1PBZ +05
182315 -11 2625  F1PBZ IW4ECF R-07
182330  +1 2572  IW4ECF F1PBZ RR73
182515  -7 2625  CQ IW4ECF JN54
183030 -12 1862  IW4ECF EA5HM 73
183230 -20 2040  IW4ECF BG7BVI RR73
183800  -5 1609  IW4ECF 7X3WPL 73
181630  -9 1029  IW4ECF SM6UQL R-07 (x2)
160500 -23 1758  IW4ECF BA8BLK OM21
160700 -17 1076  IW4ECF BH4ECL PM01 (x2)
162130 -19 3102  IW4ECF VU2FR ML88 (x2)

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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