RX3DHR — 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: KO94

Receiver-side FT8 activity involving RX3DHR, decoded by SO8OO in southeastern Poland. 64 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, across 10 UTC dates in the available aggregate history. Observed between 2026-08-29 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 64 FT8 messages attributed to RX3DHR as the transmitting token by decoded message structure across 10 UTC dates in the available aggregate history. The largest monitored-band total was 160 m (64%), followed by 80 m (31%) and 40 m (5%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -15 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-15 dB

Estimated median S/N

Bands

160m · 41 80m · 20 40m · 3

First attributed message: 2026-08-29
Last attributed message: 2026-10-22 03:33 UTC

Observed FT8 message patterns

Attributed sample: 64 messages
Active dates: 10 UTC dates
Estimated median S/N: -15 dB
Estimated 10th-90th percentile: -21 to -10 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 28, moderate (-15 to -9 dB) 33, strong (≥ -8 dB) 3.

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 RX3DHR in decoded directed-looking exchanges:

R5AV · European Russia ×3 R5DT · European Russia ×2 RZ6ASO · European Russia ES2AJ · Estonia R6OAF · European Russia R6ZEJ · European Russia R7MR · European Russia RA1QEA · European Russia RA3WY · European Russia RM5F · European Russia RQ4F · European Russia UA1A · 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 RX3DHR

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: KO94 · 37 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,273 km (approx.)
Last such locator decoded: 2026-10-21 02:40 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	RX3DHR S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-22 03:48	160m	- / -24	YL2EA	-1 / -	3	✓ Closing fragment
10-22 03:33	160m	-21 / -13	RQ4F	-6 / -	3	✓ Closing observed
10-22 03:31	160m	-20 / -	R7MR	+9 / -	2	✓ Closing observed
10-21 02:41	80m	-20 / -	R9FE	- / -15	2	✓ Closing fragment
10-21 02:37	80m	-16 / -17	DL1FLW	+8 / -23	8	✓ Full exchange observed
10-21 02:35	80m	-16 / -7	R5AV	+8 / +9	4	✓ Full exchange observed
10-21 02:34	80m	-14 / -4	R4FDK	+5 / +2	5	✓ Full exchange observed
10-21 02:32	80m	-23 / -7	R3KLE	-6 / -	4	✓ Closing observed
10-21 02:30	80m	-21 / -17	R4OF	-6 / +5	6	✓ Full exchange observed
10-21 02:26	80m	-23 / -10	RN3YN	-7 / -4	3	✓ Full exchange observed
10-17 01:00	160m	- / +6	R5DT	+7 / -	2	✓ Closing fragment
10-14 01:03	40m	-18 / -16	R5DT	+10 / +3	4	✓ Full exchange observed
10-14 00:54	160m	- / -	LA9JKA	-6 / -	6	Partial capture
10-11 03:58	160m	- / -24	R2GCV	-19 / -	5	Partial capture
10-11 03:44	160m	- / -19	UA3ADE	+7 / -	2	✓ Closing fragment
10-11 03:10	160m	-17 / -7	ES2AJ	+13 / -8	3	✓ Full exchange observed
10-11 03:08	160m	-14 / -11	UA3AGW	+7 / -	3	✓ Closing observed
10-11 03:04	160m	- / -9	R6ZEJ	-6 / -	5	✓ Closing fragment
10-11 03:04	160m	-17 / -25	R6OAF	+9 / -	3	✓ Closing observed
10-08 00:36	160m	-23 / -6	RA3WY	-1 / +1	4	✓ Full exchange observed
10-08 00:33	160m	- / -15	R5AV	-2 / -	2	✓ Closing fragment
10-04 03:30	160m	- / -18	R2SDZ	-4 / -	2	Partial capture
10-04 03:27	160m	- / -	R3ICU	-22 / -	2	Partial capture
10-04 03:26	160m	- / -5	R1TAX	-9 / -	3	Partial capture
10-04 02:56	160m	-17 / -8	UA1A	+5 / -	3	✓ Closing observed
10-04 02:48	160m	-16 / -14	RA1QEA	0 / -6	4	✓ Full exchange observed
09-16 00:46	160m	- / -4	UG4L	-12 / -	2	✓ Closing fragment
09-15 02:43	160m	- / +1	R5AV	+12 / -	2	✓ Closing fragment
09-15 02:43	160m	- / -22	RM5F	-4 / -	4	✓ Closing fragment
08-01 05:51	10m	- / +4	RZ6ASO	-10 / -	3	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

160m

UTC    dB Audio  Message
005630 -15  995  CQ RX3DHR KO94
005645  -3 1464  RX3DHR LA9JKA JP32
005700 -16  995  CQ RX3DHR KO94
010030  +9 1914  RX3DHR R5DT R+06 (x2)
010830 -13  913  CQ RX3DHR KO94 (x2)
033130  +9  549  RX3DHR R7MR RR73
033145 -20  967  R7MR RX3DHR 73
033300  -6 1189  RX3DHR RQ4F -13 (x2)
033345 -21  966  RQ4F RX3DHR 73
034800  +0 1379  RX3DHR YL2EA KO26 (x3)

40m

UTC    dB Audio  Message
010330 -18 1840  R5DT RX3DHR +03
010445 +17  530  RX3DHR R5DT R-16
010500 -19 1840  R5DT RX3DHR RR73
010515  +4  530  RX3DHR R5DT 73
004500 -11  647  RX3DHR R9JE 73
024930 -18  928  RM1B RX3DHR RR73

80m

UTC    dB Audio  Message
023630 -17  868  R5AV RX3DHR 73
023700 -14  868  CQ RX3DHR KO94
023715 +12  869  RX3DHR DL1FLW JO61
023730 -16  868  DL1FLW RX3DHR -23
023745  +6  869  RX3DHR DL1FLW R-17
023800 -20  868  DL1FLW RX3DHR -23
023815  +5  869  RX3DHR DL1FLW R-17
023830 -15  868  DL1FLW RX3DHR -23
023845  +7  869  RX3DHR DL1FLW R-17
023900 -15  868  DL1FLW RX3DHR RR73
023930 -15  868  CQ RX3DHR KO94 (x2)
024145 -15  868  R9FE RX3DHR -15 (x2)
024315 -21  868  R4UA RX3DHR +01

10m

UTC    dB Audio  Message
055130 -17 2204  RX3DHR RZ6ASO +04 (x3)
055415 -23 2084  RX3DHR UI6A -11

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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