YO7CFD — 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: Romania Most frequent locator attributed to this token: KN14

Receiver-side FT8 activity involving YO7CFD, decoded by SO8OO in southeastern Poland. 2,771 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, 10m, across 74 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 2,771 FT8 messages attributed to YO7CFD as the transmitting token by decoded message structure across 74 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (66%), followed by 40 m (18%) and 160 m (8%). Most decodes (72%) fell within the six-hour window 13:00-19:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (95%); the estimated median was +10 dB.

Overview

2,771

Messages attributed

UTC dates decoded

327

Active 15-min windows

+10 dB

Estimated median S/N

Bands

160m · 216 80m · 1,834 40m · 497 20m · 207 10m · 17

First attributed message: 2026-06-06
Last attributed message: 2026-10-22 16:17 UTC

Observed FT8 message patterns

Attributed sample: 2,771 messages
Active dates: 74 UTC dates
Estimated median S/N: +10 dB
Estimated 10th-90th percentile: -3.8 to +18 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 20, moderate (-15 to -9 dB) 109, strong (≥ -8 dB) 2,642.

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 YO7CFD in decoded directed-looking exchanges:

OM3SX · Slovak Republic ×2 R80SAA · Asiatic Russia ×2 SP9DGO · Poland ×2 RI1FJL · Franz Josef Land ×2 TA3NK · Asiatic Turkey ×2 BG2GWN · China ×2 HK4QHD · Colombia ×2 JA1ILA · Japan ×2 NQ9N · United States ×2 NU1B · United States ×2 P29YY · Papua New Guinea ×2 RX9YM · Asiatic Russia ×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 YO7CFD

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: KN14 · 1,094 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 611 km (approx.)
Last such locator decoded: 2026-10-22 15:36 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	YO7CFD S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-22 16:15	80m	+13 / -	R8LBV	- / -21	3	✓ Closing fragment
10-22 16:14	80m	- / +2	UR5LLW	-3 / -	2	Partial capture
10-22 16:11	80m	- / -	DO1BOC	-5 / -	16	Partial capture
10-22 16:06	80m	+12 / -	UA9CMN	- / -17	13	Partial capture
10-22 16:01	80m	+15 / -	R8AC	- / -14	4	Partial capture
10-22 16:00	80m	+14 / -	RA8CO	- / -18	2	Partial capture
10-22 15:50	80m	+10 / -	RX9KJ	- / -20	3	Partial capture
10-22 15:45	80m	+5 / -	RX9KJ	- / -18	3	Partial capture
10-22 15:44	80m	- / +10	UR4LBG	-5 / -	3	Partial capture
10-22 15:42	80m	+14 / -	RX9KJ	- / -24	2	Partial capture
10-22 15:38	80m	+12 / -	EX7DY	- / -21	4	Partial capture
10-22 15:30	80m	- / -	DO1BOC	-7 / -	29	Partial capture
10-22 15:29	80m	- / -	DO8JB	-10 / -	9	Partial capture
10-22 15:25	80m	+12 / -17	RA9UFJ	-18 / -16	6	✓ Full exchange observed
10-22 15:20	80m	- / -	DL1AAO	+2 / -	2	Partial capture
10-22 15:09	80m	- / -	DG5NBO	-3 / -	2	Partial capture
10-22 15:08	80m	- / -	DL1AAO	-2 / -	3	Partial capture
10-22 14:59	80m	- / -	DL1AAO	0 / -	2	Partial capture
10-21 17:17	160m	-10 / -	OD5ZF	- / -18	4	Partial capture
10-21 17:17	160m	- / -	IW2FND	-9 / -	3	Partial capture
10-21 17:13	160m	-8 / -	OD5ZF	- / -19	2	Partial capture
10-21 17:11	80m	- / -	DL6EL	0 / -	3	Partial capture
10-21 17:08	80m	+12 / +1	RW9JZ	-5 / -8	7	✓ Full exchange observed
10-21 17:02	80m	+16 / -	R8PG	- / -14	2	✓ Closing fragment
10-21 17:01	80m	- / -	DL6EL	+4 / -	3	Partial capture
10-21 16:57	80m	+7 / -	JE2EBT	- / -3	3	Partial capture
10-21 16:54	80m	+8 / -	YB1LIN	- / -12	5	Partial capture
10-21 15:52	80m	+10 / -	R8PG	- / -12	6	Partial capture
10-21 15:47	80m	- / -	HB3XCE	-18 / -	2	Partial capture
10-21 15:47	80m	+13 / -	RF9C	- / -7	6	Partial capture
10-21 15:45	80m	- / -	DL9KM	-8 / -	2	Partial capture
10-21 15:44	80m	+8 / -	UA0SR	- / -16	2	✓ Closing fragment
10-21 15:38	80m	+16 / -	RM9WN	-11 / -9	3	✓ Closing observed
10-21 15:27	80m	+6 / -	BA4IAW	- / -13	6	Partial capture
10-21 15:24	80m	+8 / -7	OD5ZZ	-19 / -9	3	✓ Full exchange observed
10-21 15:19	80m	+1 / -	BG5IOW	- / -12	6	Partial capture
10-21 05:36	80m	- / -	F1PSX	-9 / -	4	Partial capture
10-21 05:32	80m	- / -	F1PSX	-9 / -	2	Partial capture
10-21 05:24	80m	+12 / -	KF8EXX	- / -18	9	Partial capture
10-21 05:21	80m	+11 / -	KX4I	- / -15	5	Partial capture
10-21 05:19	80m	+8 / -	P4/WE9V	- / -18	2	Partial capture
10-21 05:18	80m	+8 / -	TA3NK	- / -13	2	✓ Closing fragment
10-20 14:33	40m	+2 / -	JN1NBU	- / -18	3	Partial capture
10-20 14:30	40m	+5 / -	JA0HXV	- / -18	2	Partial capture
10-20 14:26	40m	+7 / -	AP2SAA	- / -11	3	Partial capture
10-17 15:19	80m	+12 / -	JL2CPA	- / -16	3	✓ Closing fragment
10-16 15:38	80m	+16 / -	RV9WJP	- / -19	2	Partial capture
10-16 15:32	80m	- / -	DD8BA	-4 / -	3	Partial capture
10-16 15:24	80m	+13 / -	BG4FRZ	- / -19	8	✓ Closing fragment
10-16 15:17	80m	+3 / -	BI8FRF	- / -19	9	Partial capture

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
161430  -4  775  YO7CFD UR5LLW +02
161430  -2 1105  YO7CFD DO1BOC JO44
161445 +13 2461  UA9CMN YO7CFD -16
161500  -5 1105  YO7CFD DO1BOC JO44 (x2)
161545 +18  598  R8LBV YO7CFD -21
161600  -3 1105  YO7CFD DO1BOC JO44 (x2)
161645  +9  598  R8LBV YO7CFD RR73
161700  -5 1105  YO7CFD DO1BOC JO44
161715 +13  598  R8LBV YO7CFD RR73
161730  -7 1106  YO7CFD DO1BOC JO44 (x4)

160m

UTC    dB Audio  Message
170900  +3  776  CQ YO7CFD KN14 (x5)
171345 -13  656  OD5ZF YO7CFD -19 (x2)
171645 -13  655  CQ YO7CFD KN14
171700  -6 1995  YO7CFD IW2FND JN55 (x2)
171745 -13  655  OD5ZF YO7CFD -18
171800 -11 1995  YO7CFD IW2FND JN55
171815 -10  655  OD5ZF YO7CFD -18 (x3)

40m

UTC    dB Audio  Message
171715  -1  546  YO7CFD ON3MOH -03 (x4)
142630 +10  430  AP2SAA YO7CFD -11 (x3)
142830 +12  558  CQ DX YO7CFD KN14 (x3)
143045  +7  558  JA0HXV YO7CFD -18 (x2)
143315  +5  789  JN1NBU YO7CFD -18 (x3)

10m

UTC    dB Audio  Message
125445 -13 2398  YO7CFD CR7CDR IM58
135330 -10  574  YO7CFD EA1HTF IN52 (x3)

20m

UTC    dB Audio  Message
075715  +6  674  RI1FJL YO7CFD -11
075730  -8  675  YO7CFD F5IXN JN23
075745  +4  675  RI1FJL YO7CFD -14 (x2)
155300  -5  501  YO7CFD 2E1HAT JO01 (x11)

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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