RC7KK — 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: KN85

Receiver-side FT8 activity involving RC7KK, decoded by SO8OO in southeastern Poland. 133 FT8 messages attributed to this token as transmitter, on 80m, 40m, across 14 UTC dates in the available aggregate history. Observed between 2026-06-09 and 2026-10-17.

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 133 FT8 messages attributed to RC7KK as the transmitting token by decoded message structure across 14 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (56%), followed by 80 m (44%). 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 -10 dB.

Overview

133

Messages attributed

UTC dates decoded

Active 15-min windows

-10 dB

Estimated median S/N

Bands

80m · 59 40m · 74

First attributed message: 2026-06-09
Last attributed message: 2026-10-17 21:42 UTC

Observed FT8 message patterns

Attributed sample: 133 messages
Active dates: 14 UTC dates
Estimated median S/N: -10 dB
Estimated 10th-90th percentile: -15 to -2 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 13, moderate (-15 to -9 dB) 65, strong (≥ -8 dB) 55.

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 RC7KK in decoded directed-looking exchanges:

5Z4VJ · Kenya 9A5CW · Croatia DL7ACA · Fed. Rep. of Germany EW8DG · Belarus F6BHK · France M0BEW · England OE5ROR · Austria R1BDX · European Russia R3SX · European Russia R4UBH · European Russia R4ZZ · European Russia RA4CGX · 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 RC7KK

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: KN85 · 72 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,237 km (approx.)
Last such locator decoded: 2026-10-11 19:14 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	RC7KK S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-11 19:12	40m	-4 / -4	RD3FY	-2 / -3	5	✓ Full exchange observed
09-22 19:48	40m	-8 / -13	UB2FEK	+1 / -19	4	✓ Full exchange observed
09-22 19:44	40m	-10 / -14	9A5CW	+8 / -9	5	✓ Full exchange observed
09-22 19:43	40m	- / -9	R3SX	-11 / -	2	✓ Closing fragment
09-15 19:57	40m	-6 / -11	M0BEW	+1 / -12	5	✓ Full exchange observed
09-15 19:55	40m	-6 / -	DR800WE	- / -	2	Partial capture
08-20 19:50	40m	-2 / -14	R0QBB/3	+5 / -5	2	Partial capture
08-20 19:45	40m	- / -10	HA3GO	+5 / -	3	Partial capture
08-20 19:44	40m	-6 / -	R4UBH	- / -10	2	✓ Closing fragment
08-01 21:24	40m	- / -11	UA3SCU	-7 / -	4	Partial capture
08-01 20:54	40m	-18 / -	DL7ACA	-7 / -	2	✓ Closing observed
08-01 20:50	40m	-12 / -	RK9UM	- / -12	2	✓ Closing fragment
08-01 20:38	40m	-13 / -12	RW6ATD	+4 / -	3	✓ Closing observed
08-01 20:37	40m	- / -	PE1NPS	-13 / -	3	Partial capture
08-01 20:27	40m	-12 / -	R4ZZ	-9 / -10	2	✓ Closing observed
07-31 20:21	80m	- / -	E77EA	-2 / -	8	Partial capture
07-31 20:19	80m	-2 / -7	RN3DDW/P	-16 / -16	5	✓ Full exchange observed
07-31 20:18	80m	-6 / +7	RA3ZOM	+1 / -2	5	✓ Full exchange observed
07-31 19:28	80m	-4 / -5	S59A	+7 / -	3	✓ Closing observed
07-31 19:27	80m	-8 / -	R3YAU	+2 / -3	3	✓ Closing observed
07-26 20:31	40m	- / -	IZ3QCH	-16 / -	2	Partial capture
07-26 20:30	40m	- / -	RA6ABO	-14 / -	3	Partial capture
07-26 20:30	40m	- / -12	RX3ASQ	-15 / -	5	✓ Closing fragment
07-26 20:26	40m	-14 / -	Z62NS	- / -	2	Partial capture
07-26 19:40	40m	- / -	OE5ROR	-5 / -	4	✓ Closing fragment
07-26 19:39	40m	-12 / -	5Z4VJ	- / -21	2	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
202030  -6  921  RN3DDW/P RC7KK RR73
202045 -22  921  RC7KK RN3DDW/P 73
202115  -3 1402  RC7KK E77EA JN84 (x8)
200330 -11 1485  UA3VVA RC7KK KN85
200500  -1 1485  CQ RC7KK KN85
213945 -17 1629  UN3P RC7KK R-10
214215 -12 1753  R6AC RC7KK -09
214515  -5 2227  RC7KK IZ8XXE +02

40m

UTC    dB Audio  Message
194545  +2  403  RC7KK 9A5CW 73
194600 -13  402  CQ RC7KK KN85
194815  +1 2771  RC7KK UB2FEK KO04
194830  -9 2771  UB2FEK RC7KK -19
194845  +1 2771  RC7KK UB2FEK R-13
194900  -8 2770  UB2FEK RC7KK RR73
195015  -9 2027  RC7KK RZ4FWA LO23
165645  -6 2774  RC7KK R4PEQ -13
191230 -22 1505  CQ RC7KK KN85
191245  -3 2854  RC7KK RD3FY KO85
191300  -2 2853  RD3FY RC7KK -03
191315  -3 2853  RC7KK RD3FY R-04
191330  -6 2854  RD3FY RC7KK RR73
191345  +0 2853  RC7KK RD3FY 73
191400  -7 2853  CQ RC7KK KN85                         a1

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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