DK8CX — 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: Fed. Rep. of Germany Most frequent locator attributed to this token: JO61

Receiver-side FT8 activity involving DK8CX, decoded by SO8OO in southeastern Poland. 1,730 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, across 103 UTC dates in the available aggregate history. Observed between 2026-06-07 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 1,730 FT8 messages attributed to DK8CX as the transmitting token by decoded message structure across 103 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (79%), followed by 40 m (10%) and 20 m (6%). Most decodes (84%) fell within the six-hour window 16:00-22:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (92%); the estimated median was +3 dB.

Overview

1,730

Messages attributed

103

UTC dates decoded

247

Active 15-min windows

+3 dB

Estimated median S/N

Bands

160m · 76 80m · 1,369 40m · 177 20m · 108

First attributed message: 2026-06-07
Last attributed message: 2026-10-22 16:27 UTC

Observed FT8 message patterns

Attributed sample: 1,730 messages
Active dates: 103 UTC dates
Estimated median S/N: +3 dB
Estimated 10th-90th percentile: -7 to +12 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 33, moderate (-15 to -9 dB) 105, strong (≥ -8 dB) 1,592.

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 DK8CX in decoded directed-looking exchanges:

DC0GL · Fed. Rep. of Germany ×2 DL4BCY · Fed. Rep. of Germany ×2 IK4IDY · Italy ×2 S57MPU · Slovenia ×2 CR5VP · Portugal ×2 IU7VOL · Italy ×2 SV9QWC · Crete ×2 Z61DX · Republic of Kosovo ×2 DM5JBN · Fed. Rep. of Germany ×2 DO9JTR · Fed. Rep. of Germany ×2 OE5BUC · Austria ×2 ON3ANY · Belgium ×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 DK8CX

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: JO61 · 808 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 642 km (approx.)
Last such locator decoded: 2026-10-22 16:27 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	DK8CX S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-21 19:49	80m	+10 / +2	DL26BBQ	+17 / -	5	✓ Full exchange observed
10-21 19:48	80m	+12 / -	SA6DST	- / +3	3	✓ Closing fragment
10-21 19:47	80m	+12 / +5	OM2IB	+8 / -	3	✓ Full exchange observed
10-21 16:26	80m	- / -9	OH2CTS	-5 / -	2	Partial capture
10-21 16:22	80m	+2 / -	RA4CFX	- / -	2	Partial capture
10-21 16:19	80m	-1 / -20	UA4NF	-13 / -6	5	✓ Full exchange observed
10-21 16:17	80m	0 / -2	SQ2JYJ	-8 / -	6	✓ Full exchange observed
10-21 16:12	80m	+3 / +8	DO9FR	-4 / -	5	✓ Full exchange observed
10-21 16:10	80m	+13 / +1	DO2BBC	+3 / -	6	✓ Full exchange observed
10-21 16:08	80m	+13 / -6	IK3SSJ	-4 / +5	5	✓ Full exchange observed
10-21 16:07	80m	0 / -	RZ0SW	- / -	2	Partial capture
10-19 20:28	160m	-4 / -	HB3YPJ	- / -15	2	Partial capture
10-18 20:39	80m	+8 / -8	YU7BW	+18 / -	5	✓ Full exchange observed
10-18 20:33	40m	- / -9	IK8IOI	-10 / -	2	Partial capture
10-18 20:31	40m	- / -	UA4FKT	+15 / -	3	Partial capture
10-18 20:26	40m	- / -5	M6GPH	-12 / -	2	✓ Closing fragment
10-18 20:22	80m	-3 / -16	IU7VOL	+6 / -	5	✓ Closing observed
10-18 20:15	80m	+2 / -4	OG2KAJ	-16 / +5	6	✓ Full exchange observed
10-18 20:13	80m	-11 / -	IW3HXR	-3 / +5	4	✓ Closing observed
10-18 20:10	80m	-4 / -	F4JXW	- / +2	3	✓ Closing fragment
10-18 20:07	160m	-2 / -19	JF8QNF	-11 / -	3	Partial capture
10-18 20:05	160m	-3 / +4	OZ2BX	-3 / -2	5	✓ Full exchange observed
10-16 20:11	80m	+2 / -	SQ1OOP	-17 / -1	7	✓ Closing observed
10-16 20:09	80m	+5 / -	DG7AK	- / -11	4	Partial capture
10-16 20:04	80m	-12 / +9	HF37KJP	-14 / -	3	Partial capture
10-16 20:01	80m	-1 / -	SP9LBM	- / +6	4	✓ Closing fragment
10-16 19:58	80m	+2 / -	A71EM	- / -	2	Partial capture
10-16 03:27	40m	-14 / -16	OD5XX	-5 / -	4	Partial capture
10-16 03:23	40m	-17 / -	RZ9A	- / -	2	Partial capture
10-16 03:21	40m	-5 / -13	OH5KNL	-3 / -	3	✓ Closing observed
10-16 03:18	40m	-20 / -19	TA5DOB	-21 / -18	6	✓ Full exchange observed
10-16 03:16	40m	-19 / -	YY5EHT	- / -3	3	✓ Closing fragment
10-15 20:12	80m	+10 / -	SQ3WL	- / -	2	Partial capture
10-15 20:09	80m	-3 / -	DB6FA	- / +5	3	✓ Closing fragment
10-15 20:07	80m	-6 / -14	SM4UPU	-10 / +6	5	✓ Full exchange observed
10-15 20:06	80m	+13 / -5	F4ISR	-2 / +5	5	✓ Full exchange observed
10-15 20:03	80m	+5 / +3	DK7AM	+11 / -	8	✓ Full exchange observed
10-15 20:02	80m	+9 / -10	IK5VQK	+6 / -	4	✓ Full exchange observed
10-15 19:58	80m	+7 / -	R1CBW	- / +1	3	✓ Closing fragment
10-15 19:53	160m	-11 / -	SV3GKT	-19 / -7	4	✓ Closing observed
10-15 19:52	160m	-6 / -7	EU3A	+10 / +3	5	✓ Full exchange observed
10-15 06:23	40m	-6 / -	F6FDY	- / -9	2	Partial capture
10-15 06:21	40m	-8 / -8	Z61DX	0 / -2	5	✓ Full exchange observed
10-15 06:20	40m	-4 / -	ON3THC	-17 / -4	3	✓ Closing observed
10-15 06:13	40m	-10 / -	F4MVM	-15 / -3	5	✓ Closing observed
10-15 02:05	40m	- / -12	JY5IB	-16 / -	2	✓ Closing fragment
10-15 02:02	80m	+8 / -	UA3IDQ	- / +3	2	✓ Closing fragment
10-15 01:59	80m	+4 / -13	R9CB	-2 / -1	7	✓ Full exchange observed
10-15 01:02	80m	+5 / -	AP2HA	- / -	5	Partial capture
10-15 01:00	80m	+10 / -8	Z61DX	-8 / +7	5	✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
162630  -5  507  DK8CX OH2CTS -09 (x2)
194700  +7 1330  DK8CX OM2IB +05
194715 +12 1330  OM2IB DK8CX R+14
194730  +8 1330  DK8CX OM2IB RR73
194815 +13  939  SA6DST DK8CX JO61 (x3)
194945 +11 2449  DL26BBQ DK8CX JO61
195000 +18 2449  DK8CX DL26BBQ +02
195015  +9 2449  DL26BBQ DK8CX R+27
195030 +16 2449  DK8CX DL26BBQ RR73 (x2)
195445  -1 1166  LY2BNL DK8CX JO61
162700  +1 2258  UN7EAN DK8CX JO61

160m

UTC    dB Audio  Message
195430 -19 2275  DK8CX SV3GKT RR73
195445  -9 2275  SV3GKT DK8CX 73
200545  -5 1151  OZ2BX DK8CX JO61
200600  -4 1151  DK8CX OZ2BX +04
200615  -1 1151  OZ2BX DK8CX R-02
200630  -2 1151  DK8CX OZ2BX RR73
200645  -3 1151  OZ2BX DK8CX 73
200715  +6  452  JF8QNF DK8CX JO61
200800 -11  452  DK8CX JF8QNF -19
200815  -9 1452  JF8QNF DK8CX JO61
202845  -1 2002  HB3YPJ DK8CX JO61 (x2)
200315  +5 1368  DK8CX S57MPU 73
194200  -7 1591  OK1KUB DK8CX JO61
194300  -6 1872  RM5P DK8CX JO61

40m

UTC    dB Audio  Message
032200  -5 2660  DK8CX OH5KNL RR73
032215  -5 2660  OH5KNL DK8CX 73
032315 -16 1635  RZ9A DK8CX JO61 (x2)
032730 -14 1541  OD5XX DK8CX JO61
032845  -3 1539  DK8CX OD5XX -16 (x3)
202630 -14  763  DK8CX M6GPH -05 (x2)
203145 +15  558  DK8CX UA4FKT LO23 (x3)
203345 -11  405  DK8CX IK8IOI -09 (x2)

10m

UTC    dB Audio  Message
133600 -17 1001  DK8CX F6BNX JN33 (x3)
124700  -7 2735  DK8CX SV2AEL -01 (x2)
130700 -10  600  DK8CX DN9CHV -12
133830 -13 1197  DK8CX CR7BUJ -03 (x2)

20m

UTC    dB Audio  Message
202445  +9  632  8Z1IT DK8CX R-04
202500  -3  632  DK8CX 8Z1IT RR73
202515  +9  633  8Z1IT DK8CX 73
202600  -3 1697  F4MNH DK8CX JO61
202615  -6 1698  DK8CX F4MNH +00
202630  +4 1697  F4MNH DK8CX R-10
202645  -1 1698  DK8CX F4MNH RR73
202700  -9 1697  F4MNH DK8CX 73
202745  +7 1318  YO6PNM DK8CX JO61 (x4)
203030 +11 2316  KQ4IJI DK8CX JO61 (x2)
203345 +13 2671  K0BLT DK8CX JO61

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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