R5KH — 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: KO91

Receiver-side FT8 activity involving R5KH, decoded by SO8OO in southeastern Poland. 3,609 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, 10m, across 40 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-10-18.

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 3,609 FT8 messages attributed to R5KH as the transmitting token by decoded message structure across 40 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (33%), followed by 10 m (27%) and 20 m (22%). The busiest six-hour window was 16:00-22:00 UTC, containing 42% of decodes. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -12 dB.

Overview

3,609

Messages attributed

UTC dates decoded

439

Active 15-min windows

-12 dB

Estimated median S/N

Bands

160m · 203 80m · 1,200 40m · 444 20m · 786 10m · 976

First attributed message: 2026-06-07
Last attributed message: 2026-10-18 22:21 UTC

Observed FT8 message patterns

Attributed sample: 3,609 messages
Active dates: 40 UTC dates
Estimated median S/N: -12 dB
Estimated 10th-90th percentile: -22 to 0 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 1,334, moderate (-15 to -9 dB) 1,058, strong (≥ -8 dB) 1,217.

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 R5KH in decoded directed-looking exchanges:

R5AV · European Russia ×5 R50RKZ · European Russia ×4 EU1EU · Belarus ×3 R2EA/P · European Russia ×3 R4FDD · European Russia ×2 RA6ATZ · European Russia ×2 RL3FA · European Russia ×2 RN3QQT · European Russia ×2 RU3T · European Russia ×2 RW3RN · European Russia ×2 RW7B · European Russia ×2 UA3QNA · 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 R5KH

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: KO91 · 2,623 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,221 km (approx.)
Last such locator decoded: 2026-10-18 22:20 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	R5KH S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-18 22:20	160m	-9 / -18	DO9BLX	+2 / -12	5	✓ Full exchange observed
10-18 22:19	160m	-10 / -	DK9WI	- / -	2	Partial capture
10-18 22:10	160m	-11 / -	SV7LWI	- / -16	3	✓ Closing fragment
10-18 22:07	160m	-12 / -	PE1KWE	- / -	2	Partial capture
10-18 22:05	80m	-11 / -	TF4M	-6 / -7	4	✓ Closing observed
10-18 22:03	80m	-12 / -1	LZ1ZF	-2 / -2	6	✓ Full exchange observed
10-18 21:59	80m	-6 / -	R9ON	- / -19	3	✓ Closing fragment
10-18 21:58	80m	-7 / -6	UA4POO	-5 / -1	5	✓ Full exchange observed
10-18 21:53	80m	-9 / -12	MM0HVU	-15 / -	3	✓ Closing observed
10-18 21:52	80m	-7 / -15	EC3A	-16 / -	3	✓ Closing observed
10-18 21:50	80m	-8 / -16	EA1FYL	+1 / -	4	✓ Closing observed
10-18 21:48	80m	-6 / -	RA0AF	- / -9	4	Partial capture
10-18 21:46	80m	-6 / +6	R2BIU	-12 / -1	5	✓ Full exchange observed
10-18 21:31	160m	-18 / -	DL4RAQ	-10 / -17	3	Partial capture
10-18 21:24	160m	-14 / -	JR6EZE	- / -	3	Partial capture
10-18 21:20	160m	-20 / -	AP5ARS	- / -	2	Partial capture
10-18 21:17	160m	-19 / -6	DK7ZT	-9 / -13	6	✓ Full exchange observed
10-18 21:16	160m	- / -7	RM5F	-14 / -	2	✓ Closing fragment
10-18 21:12	160m	- / -11	SV9CVY	+2 / -	2	✓ Closing fragment
10-18 21:03	160m	- / 0	OH0Z	-10 / -	2	✓ Closing fragment
10-18 21:01	160m	-24 / -	R7ZY	- / -5	2	✓ Closing fragment
10-18 20:59	160m	-21 / +2	R80SAA	+4 / -3	4	✓ Full exchange observed
10-18 19:47	40m	-16 / -	H49A	- / -	4	Partial capture
10-17 23:54	160m	-3 / +4	SP1IWC	+10 / -10	5	✓ Full exchange observed
10-17 23:51	160m	-6 / -	RV3SBS	- / -15	4	✓ Closing fragment
10-17 23:50	160m	-8 / -5	LA9JKA	-10 / -16	5	✓ Full exchange observed
10-17 23:49	160m	-12 / -	SP1IWC	- / -	3	Partial capture
10-17 23:45	160m	-12 / -9	HB9BWE	+8 / -24	7	✓ Full exchange observed
10-17 23:43	160m	-10 / -	RA9YTI	- / -16	4	✓ Closing fragment
10-17 23:39	80m	-10 / -	GM6URC	- / -9	4	✓ Closing fragment
10-17 23:34	80m	-4 / -	R5DK	- / -	7	Partial capture
10-17 23:29	80m	-1 / -	R2EA/P	+7 / -3	3	✓ Closing observed
10-17 23:26	80m	-2 / -10	DO1OAS	-5 / -12	6	✓ Full exchange observed
10-17 23:25	80m	-2 / -5	F4CTJ	-1 / -	5	✓ Closing observed
10-17 23:23	80m	-5 / -	R2BQM	-16 / -3	3	✓ Closing observed
10-17 23:21	80m	-6 / -20	DK8HC	+7 / -14	9	✓ Full exchange observed
10-17 23:19	80m	-6 / -15	G8OCV	+7 / -10	5	✓ Full exchange observed
10-17 23:16	80m	-8 / -	MW9LQA	- / -	5	Partial capture
10-17 22:53	160m	-15 / -4	DD6WF	+7 / -21	5	✓ Full exchange observed
10-17 22:51	160m	-15 / -	SV2AEL	+15 / -23	4	✓ Closing observed
10-17 22:48	160m	-14 / -20	IS0JHQ	-4 / -18	4	✓ Full exchange observed
10-17 22:29	160m	-22 / -8	UA9OR	-18 / -	5	✓ Closing observed
10-17 22:14	160m	-12 / -	9H1ES	- / -	2	Partial capture
10-17 22:12	160m	-16 / -4	UA4CKN	-20 / -11	5	✓ Full exchange observed
10-17 22:10	160m	-18 / -9	PI4DX	+3 / -	4	✓ Closing observed
10-17 22:08	160m	-8 / -	4L7T	- / -15	3	✓ Closing fragment
10-17 22:07	160m	- / -20	HA8BT	+10 / -	2	✓ Closing fragment
10-17 22:03	160m	-10 / -4	RK3AW	-1 / -2	5	✓ Full exchange observed
10-16 22:07	160m	- / -9	UA1A	-14 / -	2	✓ Closing fragment
10-16 22:03	160m	-21 / -24	G4ITR	-8 / -	4	✓ Closing observed

Recent FT8 messages decoded at SO8OO

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

160m

UTC    dB Audio  Message
213230 -18 1703  DL4RAQ R5KH -17 (x2)
213500 -18 1608  CT1FPQ R5KH KO91
220745 -14 1599  PE1KWE R5KH KO91 (x2)
221015 -13 1599  SV7LWI R5KH KO91 (x3)
221915  -9 1694  DK9WI R5KH KO91 (x2)
222045 -11 1934  DO9BLX R5KH KO91
222100  +4 1934  R5KH DO9BLX -18
222115  -8 1934  DO9BLX R5KH R-12
222130  +0 1934  R5KH DO9BLX RR73
222145  -8 1934  DO9BLX R5KH 73

80m

UTC    dB Audio  Message
215915  -6 1996  UA4POO R5KH 73
215945  -6 2097  R9ON R5KH KO91 (x3)
220145 -12 1850  R4FDD R5KH KO91
220315 -14 1850  LZ1ZF R5KH KO91 (x2)
220400  -2 1326  R5KH LZ1ZF -01
220415  -8 1850  LZ1ZF R5KH R-02
220430  -1 1326  R5KH LZ1ZF RR73
220445 -10 1850  LZ1ZF R5KH 73
220515 -16 1850  TF4M R5KH KO91 (x2)
220600  -6 1709  R5KH TF4M RR73
220615  -5 1849  TF4M R5KH 73

40m

UTC    dB Audio  Message
170700 -18 1736  CQ R5KH KO91
155000 -14 1644  R7PKS/P R5KH KO91 (x8)
155945 -20 2074  R5KH RA9QBR RR73
160130 -12 1790  UA3LBR R5KH KO91
194745 -15 1670  H49A R5KH KO91 (x4)

20m

UTC    dB Audio  Message
085800  +7 2223  CQ R5KH KO91 (x3)
085930  +4 2223  R4PEQ R5KH R-11 (x2)
090015 +12  341  R5KH F8PDR IN98
090030  +2 2223  CQ R5KH KO91
090045  +1 2223  R5KH F8PDR IN98
090100  +5 2223  F8PDR R5KH -21
090115  -2 2224  R5KH F8PDR R+02
090130  +6 2223  F8PDR R5KH RR73
090145  +4 2224  R5KH F8PDR 73
090200  +7 2223  CQ R5KH KO91 (x3)

10m

UTC    dB Audio  Message
083630 -20 2134  RA3ZH R5KH -17
084630 -24 2134  CQ R5KH KO91                          a1
085715 -14 2318  R5KH LZ1BT R-04 (x2)
090400 -22 2134  CQ R5KH KO91
091215  +0 2733  R5KH F1PBZ -19 (x3)
095145  -5 2310  R5KH SV2AOB +05 (x2)
133245 -19 1509  R5KH IZ7KYS JN90 (x5)

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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