K2RKJ — 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: United States Most frequent locator attributed to this token: FM07

Receiver-side FT8 activity involving K2RKJ, decoded by SO8OO in southeastern Poland. 128 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 15 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-10-06.

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 128 FT8 messages attributed to K2RKJ as the transmitting token by decoded message structure across 15 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (82%), followed by 40 m (13%) and 10 m (5%). Most decodes (95%) fell within the six-hour window 18:00-00:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -9 dB.

Overview

128

Messages attributed

UTC dates decoded

Active 15-min windows

-9 dB

Estimated median S/N

Bands

40m · 17 20m · 105 10m · 6

First attributed message: 2026-06-08
Last attributed message: 2026-10-06 23:28 UTC

Observed FT8 message patterns

Attributed sample: 128 messages
Active dates: 15 UTC dates
Estimated median S/N: -9 dB
Estimated 10th-90th percentile: -17 to +1 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 15, moderate (-15 to -9 dB) 54, 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 K2RKJ in decoded directed-looking exchanges:

IW2MYH · Italy ×2 YV6BXN · Venezuela ×2 CT3MD · Madeira Islands ×2 IW8PQ · Italy UC6A · European Russia 9K2GR · Kuwait A92AE · Bahrain AJ7GF · United States DC7LR · Fed. Rep. of Germany F5OYA/P · France GJ0KYZ · Jersey IU0NAD · Italy

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 K2RKJ

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: FM07 · 55 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 7,591 km (approx.)
Last such locator decoded: 2026-10-06 23:28 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	K2RKJ S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-23 14:33	10m	-16 / -	UC6A	- / -	2	✓ Closing fragment
09-23 14:31	10m	-18 / -	IW8PQ	- / -	2	✓ Closing fragment
09-10 22:50	40m	- / -16	HZ1TT	-6 / -	3	✓ Closing fragment
09-09 23:25	40m	-13 / -	J38DX	- / -	3	Partial capture
09-09 23:17	40m	- / -13	PW8BR	-10 / -	2	✓ Closing fragment
09-09 23:15	40m	- / -9	F5MSE	-3 / -	2	✓ Closing fragment
08-28 23:46	20m	-12 / -	HP1RY	- / -	2	Partial capture
08-27 23:06	20m	-4 / -	7Z1BQ	- / -	3	Partial capture
08-26 22:53	20m	-9 / -	EA8BYO	- / -	2	Partial capture
08-26 22:51	20m	-2 / -	LY5A	- / +7	2	✓ Closing fragment
08-25 23:10	20m	0 / -	PD0DDA	- / +1	3	Partial capture
08-25 23:09	20m	+4 / -	RD3FY	- / -19	2	Partial capture
08-25 23:07	20m	+2 / -	F5OYA/P	- / +1	4	✓ Closing fragment
08-25 23:03	20m	+2 / -	SV1MOZ	- / -8	4	Partial capture
08-25 23:01	20m	+2 / -	UI7N	- / -4	3	✓ Closing fragment
08-25 22:58	20m	-1 / -	AJ7GF	- / -13	7	✓ Closing fragment
08-25 22:55	20m	-2 / -	N6VMO	- / -7	5	✓ Closing fragment
08-24 23:39	20m	-10 / -	IK2LRF	-6 / -7	3	Partial capture
08-24 23:37	20m	-8 / -	TJ1GD	- / -7	2	Partial capture
08-24 23:36	20m	-10 / 0	LA6AFA	-10 / -	6	✓ Full exchange observed
08-23 17:36	20m	- / -5	GJ0KYZ	+2 / -	2	✓ Closing fragment
08-22 22:45	20m	- / -18	IU0NAD	-4 / -	4	✓ Closing fragment
08-22 22:31	40m	- / -18	EA5HM	-8 / -	6	✓ Closing fragment
08-22 22:01	20m	-15 / -	SA3LEN	- / -	2	✓ Closing fragment
08-22 00:26	20m	- / -	OE9NET	-11 / -	3	Partial capture
08-21 23:30	20m	- / -13	PD1JBO	-4 / -	3	✓ Closing fragment
08-21 23:30	20m	- / -11	R6LIG	-10 / -	4	Partial capture
08-21 23:28	20m	- / +4	9K2GR	+8 / -	3	✓ Closing fragment
08-21 23:25	20m	- / -	OE9NET	-5 / -	27	Partial capture
08-21 23:20	20m	-13 / +2	WY5I	+9 / -	7	✓ Full exchange observed
08-21 23:20	20m	-12 / -	KD6EFQ	- / -17	4	✓ Closing fragment
08-21 23:19	20m	-10 / -	W8TMB	- / -7	3	✓ Closing fragment
08-21 23:00	20m	-10 / -	A92AE	- / -10	4	✓ Closing fragment
08-21 22:57	20m	-5 / -5	IW2MYH	-13 / -13	9	✓ Full exchange observed
08-21 22:56	20m	-4 / -	OY1HJ	- / -13	4	✓ Closing fragment
08-21 22:52	20m	-6 / -	OY1HJ	- / -	2	Partial capture
08-20 23:03	20m	-10 / -	VA7NRC	- / -19	2	✓ Closing fragment
08-20 23:02	20m	-8 / -	LU1DG	- / -16	2	Partial capture
08-20 22:59	20m	-9 / -18	YV6BXN	-12 / -2	5	✓ Full exchange observed
08-20 18:09	20m	- / -	SP2SGZ	+1 / -	4	Partial capture
08-20 14:34	20m	- / -	ON3MV	-13 / -	7	Partial capture
08-19 23:48	40m	- / -	PA1AA	+2 / -	2	Partial capture
08-19 23:44	40m	- / -	IU2VBP	-1 / -	2	Partial capture
08-19 23:41	40m	-10 / -	D2UY	- / -10	5	✓ Closing fragment
08-19 23:38	40m	-8 / -5	CT3MD	-10 / -3	5	✓ Full exchange observed
08-19 23:35	40m	-8 / -	W5WNR	- / -17	3	Partial capture
08-18 23:42	40m	- / +2	CT2HEX	-22 / -	2	✓ Closing fragment
08-16 22:50	20m	- / -8	SV5BYP	-16 / -	2	✓ Closing fragment
08-16 22:38	20m	- / -3	LZ1ZF	-4 / -	2	✓ Closing fragment
08-16 22:29	20m	- / -1	DC7LR	+1 / -	2	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
223400  -6 1577  K2RKJ EA5HM R-18 (x2)
231515  -2 1131  K2RKJ F5MSE -09 (x2)
231745 -10 2390  K2RKJ PW8BR -13 (x2)
232500 -13  888  J38DX K2RKJ FM07 (x3)
225000  -3 1729  K2RKJ HZ1TT -16 (x2)
225100 -13 1272  K2RKJ SP6NIV JO71
225100  -6 1729  K2RKJ HZ1TT 73
233700 -11  827  V47YA K2RKJ FM07
232845 -15  934  V51PJ K2RKJ FM07

10m

UTC    dB Audio  Message
142030 -15 1172  K2RKJ UR6QA KN77
142745 -19 1174  UT3UNE K2RKJ RRR
142945 -18 1175  LZ2EW K2RKJ -12
143115 -19 1175  IW8PQ K2RKJ RRR (x2)
143345 -17 1175  UC6A K2RKJ RRR (x2)

20m

UTC    dB Audio  Message
230945  +6  482  RD3FY K2RKJ -19 (x2)
231045  +0  483  PD0DDA K2RKJ +01 (x3)
231245  +3  483  M8KUG K2RKJ -09
225145  -1  619  LY5A K2RKJ R+07 (x2)
225300  -8  619  EA8BYO K2RKJ FM07 (x2)
230615  -5  689  7Z1BQ K2RKJ FM07 (x3)
234615 -13 1433  HP1RY K2RKJ FM07 (x2)

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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