RD4HP — 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: LO43

Receiver-side FT8 activity involving RD4HP, decoded by SO8OO in southeastern Poland. 140 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 5 UTC dates in the available aggregate history. Observed between 2026-07-02 and 2026-09-13.

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 140 FT8 messages attributed to RD4HP as the transmitting token by decoded message structure across 5 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (69%), followed by 40 m (29%) and 10 m (2%). Most decodes (96%) fell within the six-hour window 11:00-17:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -10 dB.

Overview

140

Messages attributed

UTC dates decoded

Active 15-min windows

-10 dB

Estimated median S/N

Bands

40m · 40 20m · 97 10m · 3

First attributed message: 2026-07-02
Last attributed message: 2026-09-13 13:05 UTC

Observed FT8 message patterns

Attributed sample: 140 messages
Active dates: 5 UTC dates
Estimated median S/N: -10 dB
Estimated 10th-90th percentile: -18 to +4 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 31, moderate (-15 to -9 dB) 50, strong (≥ -8 dB) 59.

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 RD4HP in decoded directed-looking exchanges:

DK4FH · Fed. Rep. of Germany EW4DX · Belarus HA0AA · Hungary HG8LXL · Hungary R2EA · European Russia R7DX · European Russia R9HEP · Asiatic Russia RA3LJ · European Russia RL3QGD · European Russia RU7KQ · European Russia RX9WM · Asiatic Russia UA3NFG · European Russia

Most frequent locator attributed to RD4HP

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: LO43 · 78 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,903 km (approx.)
Last such locator decoded: 2026-09-13 13:04 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	RD4HP S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-20 11:36	40m	- / -18	RA3LJ	-18 / -	2	✓ Closing fragment
09-13 13:04	40m	-15 / -7	HA0AA	-2 / -15	5	✓ Full exchange observed
09-13 12:16	40m	- / -	R6ML	-15 / -	3	Partial capture
09-13 12:15	40m	- / -5	RA6OD	-10 / -	2	Partial capture
09-13 12:11	40m	- / -1	R2EA	-12 / -	4	✓ Closing fragment
09-13 12:04	40m	-16 / -	UA3NFG	- / +2	2	✓ Closing fragment
09-13 11:53	40m	-14 / +1	R7DX	-16 / -	6	✓ Closing observed
09-13 11:52	40m	- / -6	RU7KQ	-18 / -	3	✓ Closing fragment
09-13 11:52	40m	-14 / -	RX9WM	- / +1	2	✓ Closing fragment
09-13 11:41	40m	- / -11	HG8LXL	-10 / -	10	✓ Closing fragment
09-13 11:35	40m	- / -12	DK4FH	-6 / -	2	✓ Closing fragment
09-13 11:33	40m	- / -	HG8LXL	-7 / -	4	Partial capture
09-13 11:32	40m	-14 / -2	EW4DX	+5 / -	4	✓ Closing observed

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
121315 -12  975  RD4HP R2EA RR73
121515  -8  907  RD4HP RA6OD KN97 (x2)
121615 -16  994  RD4HP R6ML LN17 (x3)
125930 -12  907  UA4FKT RD4HP RR73
130415  -2  918  RD4HP HA0AA -07
130430 -16  907  HA0AA RD4HP LO43 (x2)
130515  -2  918  RD4HP HA0AA RR73
130530 -14  906  HA0AA RD4HP 73
113615 -14 1413  RD4HP RA3LJ -18 (x2)
112615 -17  981  RD4HP RL3QGD 73

CW

No CW receptions recorded for this callsign in the last 30 days.

Explore CW reception at SO8OO

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