R4PFY — 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: European Russia Most frequent locator attributed to this token: LO45

Receiver-side FT8 activity involving R4PFY, decoded by SO8OO in southeastern Poland. 3,387 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 101 UTC dates in the available aggregate history. Observed between 2026-06-06 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 3,387 FT8 messages attributed to R4PFY as the transmitting token by decoded message structure across 101 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (87%), followed by 20 m (13%). Most decodes (92%) fell within the six-hour window 14:00-20:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -13 dB.

Overview

3,387

Messages attributed

101

UTC dates decoded

500

Active 15-min windows

-13 dB

Estimated median S/N

Bands

40m · 2,955 20m · 432

First attributed message: 2026-06-06
Last attributed message: 2026-10-23 15:20 UTC

Observed FT8 message patterns

Attributed sample: 3,387 messages
Active dates: 101 UTC dates
Estimated median S/N: -13 dB
Estimated 10th-90th percentile: -20.3 to -5 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 1,044, moderate (-15 to -9 dB) 1,574, strong (≥ -8 dB) 769.

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 R4PFY in decoded directed-looking exchanges:

EU1EU · Belarus ×3 R2APC · European Russia ×3 UA6AHR · European Russia ×3 I4WQH · Italy ×2 M0MLS · England ×2 9A3K · Croatia ×2 BA5CW · China ×2 EX7CQ · Kyrgyzstan ×2 F1TXI · France ×2 GM0SDV · Scotland ×2 OH3MB · Finland ×2 R3KJF · European 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 R4PFY

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: LO45 · 1,623 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,920 km (approx.)
Last such locator decoded: 2026-10-23 15:20 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	R4PFY S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-23 15:19	40m	- / -	F4DVP	-18 / -	3	Partial capture
10-23 15:16	40m	-15 / -	UG0B	- / -5	3	Partial capture
10-23 15:14	40m	-17 / -	EP2AES	- / -19	4	Partial capture
10-23 15:09	40m	-20 / -	UB3PAQ	- / -10	2	✓ Closing fragment
10-23 15:07	40m	-18 / -	EU7SV	- / -14	2	Partial capture
10-23 15:06	40m	-16 / -	UD7G	- / -13	3	Partial capture
10-23 14:59	40m	-17 / -13	UA6AHR	-1 / -	3	✓ Closing observed
10-22 15:33	40m	- / +8	RA1TL	+8 / -	2	✓ Closing fragment
10-21 17:25	40m	- / -7	PA3AGN	-16 / -	2	✓ Closing fragment
10-21 17:22	40m	- / -19	IK2JYT	+2 / -	2	✓ Closing fragment
10-21 17:19	40m	- / -1	IK0CHU	+3 / -	4	✓ Closing fragment
10-21 17:17	40m	- / -15	IK4RVY	+4 / -	2	✓ Closing fragment
10-21 17:12	40m	- / -10	PA0EJT	+2 / -	2	✓ Closing fragment
10-20 18:08	40m	- / -	DL9ATW	-4 / -	2	Partial capture
10-20 18:01	40m	- / -	M9RPO	-6 / -	2	Partial capture
10-20 17:52	40m	-18 / -10	YO2OXD	-1 / -14	5	✓ Full exchange observed
10-20 17:50	40m	-14 / -20	IU5VLR	-15 / -	4	✓ Closing observed
10-20 17:47	40m	-13 / -	RD6OZ	-13 / -13	3	✓ Closing observed
10-20 17:37	40m	- / -6	RA6OD	-8 / -	5	✓ Closing fragment
10-20 17:33	40m	- / -16	PA2DX	-5 / -	4	✓ Closing fragment
10-20 17:28	40m	-16 / -4	TA7ESC	-12 / -	2	✓ Closing observed
10-20 16:47	40m	-18 / -16	IK4TVP	-3 / -13	3	✓ Full exchange observed
10-20 16:17	40m	-12 / -5	R1BDX	-11 / -8	3	Partial capture
10-20 16:17	40m	-16 / -11	R3DQB	-4 / -	3	✓ Closing observed
10-20 16:12	40m	- / 0	UA3DNK	-9 / -	2	✓ Closing fragment
10-20 16:08	40m	-13 / -	RW3XZ	- / -4	3	Partial capture
10-20 16:05	40m	-7 / -7	UA6HGM	-7 / -7	6	Partial capture
10-20 16:03	40m	-9 / -	UN1EAK	- / -9	2	✓ Closing fragment
10-20 15:45	40m	- / +2	UA3ADE	+4 / -	2	✓ Closing fragment
10-20 15:41	40m	-13 / -	UA4PDJ	- / -17	3	Partial capture
10-20 15:38	40m	-12 / -	R9OON	- / -14	2	✓ Closing fragment
10-20 15:37	40m	-14 / -	R3DRA	- / +2	3	✓ Closing fragment
10-20 15:35	40m	- / -6	R2DAR	-13 / -	2	✓ Closing fragment
10-17 18:09	40m	- / -	EA1KCN	-2 / -	5	Partial capture
10-17 18:01	40m	-10 / -	OE1AES	- / -20	3	Partial capture
10-17 17:59	40m	- / -	G4CFS	-2 / -	2	Partial capture
10-17 17:58	40m	-11 / -12	RT7B	-9 / -13	5	✓ Full exchange observed
10-17 17:56	40m	-14 / -	RA8CO	- / -3	2	✓ Closing fragment
10-17 17:56	40m	- / -	G4CFS	+2 / -	2	Partial capture
10-17 17:51	40m	-12 / -	G0ALI	- / -20	3	Partial capture
10-17 17:44	40m	-13 / -15	GJ0KYZ	-8 / -15	6	✓ Full exchange observed
10-17 17:41	40m	-12 / -	LA1PHA	- / -10	2	Partial capture
10-17 17:36	40m	-15 / -	M8BJL	- / -19	3	Partial capture
10-17 17:33	40m	-15 / -16	LB7ZG	+6 / -	2	✓ Closing observed
10-17 17:29	40m	-14 / -	G6PWS	- / -18	2	Partial capture
10-17 17:28	40m	-14 / -	PH1PCH	- / -14	2	Partial capture
10-17 17:27	40m	- / -	G6ZVR	-18 / -	4	Partial capture
10-17 17:25	40m	-16 / -15	G6LTT	-11 / -19	3	✓ Full exchange observed
10-17 17:24	40m	-14 / -	OZ1OTA	- / -17	2	Partial capture
10-17 16:29	40m	- / -	HB9ZHK	-15 / -	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
151500 -16 1905  EP2AES R4PFY -19 (x2)
151600 -12 1905  UG0B R4PFY -05 (x3)
151730 -20 1905  CQ R4PFY LO45 (x5)
151945 -17 1905  R4PFY F4DVP JO10
152000 -22 1905  CQ R4PFY LO45                         a1
152015 -20 1906  R4PFY F4DVP JO10
152030 -14 1905  CQ R4PFY LO45
152045 -16 1906  R4PFY F4DVP JO10

80m

UTC    dB Audio  Message
211400  +2 1971  R4PFY 9A4ZM JN86 (x2)

20m

UTC    dB Audio  Message
125930 -15 1555  R4PFY M7INZ -15
094645 -24 1870  <...> R4PFY LO45
095300 -23 1870  R4PFY I4WQH R-16 (x2)
121730 -21 1871  RW0AR R4PFY LO45
121800 -19 1870  CQ R4PFY LO45 (x2)
123145 -15 1156  R4PFY RA3Y 73
074945  +1 1416  IV3UWA/0 R4PFY -14
085730 -16 1416  R4PFY PD3LKN JO22 (x3)
104430 -12 1415  <...> R4PFY -14
104830 -12 1415  CQ R4PFY LO45                         a1 (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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