R4HFX — 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: LO63

Receiver-side FT8 activity involving R4HFX, decoded by SO8OO in southeastern Poland. 162 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 24 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-10-15.

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 162 FT8 messages attributed to R4HFX as the transmitting token by decoded message structure across 24 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (75%), followed by 40 m (16%) and 10 m (8%). Most decodes (65%) fell within the six-hour window 13:00-19:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -14 dB.

Overview

162

Messages attributed

UTC dates decoded

Active 15-min windows

-14 dB

Estimated median S/N

Bands

80m · 1 40m · 26 20m · 122 10m · 13

First attributed message: 2026-06-07
Last attributed message: 2026-10-15 18:23 UTC

Observed FT8 message patterns

Attributed sample: 162 messages
Active dates: 24 UTC dates
Estimated median S/N: -14 dB
Estimated 10th-90th percentile: -22 to -1 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 68, moderate (-15 to -9 dB) 45, strong (≥ -8 dB) 49.

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 R4HFX in decoded directed-looking exchanges:

SV1DKR · Greece ×2 R0ADK · Asiatic Russia TA3RAM · Asiatic Turkey 9K2MP · Kuwait E70SZ · Bosnia-Herzegovina JT1DN · Mongolia R3KLE · European Russia R5AV · European Russia RA9CUU · Asiatic 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 R4HFX

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: LO63 · 93 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 2,168 km (approx.)
Last such locator decoded: 2026-10-15 18:23 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	R4HFX S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-17 18:35	40m	- / -	R3KLE	-14 / -	2	✓ Closing fragment
10-17 17:33	40m	- / -3	E70SZ	-2 / -	4	✓ Closing fragment
10-17 17:32	40m	- / -	RD3FY	-3 / -	4	Partial capture
10-17 14:20	40m	- / -4	RA9CUU	-16 / -	2	✓ Closing fragment
10-15 18:22	40m	-17 / -17	PA3GAE	-6 / -	5	Partial capture
10-15 18:09	40m	-20 / -	SV1DKR	-15 / -	2	✓ Closing observed
10-15 18:02	40m	- / -	RD3FY	-2 / -	3	Partial capture
10-15 18:01	40m	-20 / -	9K2MP	- / -3	2	✓ Closing fragment
10-15 17:59	40m	-18 / -11	SM3PZG	-22 / -18	2	Partial capture
10-15 16:16	40m	-15 / -	JT1DN	- / -18	2	✓ Closing fragment
08-14 13:41	20m	-20 / -	R0ADK	- / -9	2	✓ Closing fragment
08-08 00:26	40m	- / -9	R5AV	-4 / -	2	✓ Closing fragment
08-05 16:41	20m	- / -	EA3AAY	-9 / -	2	Partial capture
08-02 14:55	20m	-9 / -	TA3RAM	- / -10	3	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
182400  -7 2279  R4HFX PA3GAE -17 (x3)
142000 -16  985  R4HFX RA9CUU -04 (x2)
173230  -4 2708  R4HFX RD3FY KO85 (x3)
173330  -6 1514  R4HFX E70SZ JN84
173400  -1 2708  R4HFX RD3FY KO85
173400  -3 1515  R4HFX E70SZ JN84 (x3)
183530 -13 2123  R4HFX R3KLE KO91 (x2)

20m

UTC    dB Audio  Message
025945 -19 1535  CQ R4HFX LO63
084030  +4 2670  R4HFX DL1R JN58
032200 -15  735  CQ R4HFX LO63                         a1
145545  -9  760  TA3RAM R4HFX LO63 (x3)
145715 -11  755  CQ R4HFX LO63
114400 -10 2493  R4HFX IZ4JMA R-09
164100  -4 1674  R4HFX EA3AAY JN11 (x2)
134145 -23 1480  R0ADK R4HFX -09 (x2)
134715 -23 1479  RD0L R4HFX -05
031215 -10 1498  CQ R4HFX LO63

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

FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee