DK8ZZ — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Fed. Rep. of Germany Most frequent locator attributed to this token: JO30

Receiver-side FT8 activity involving DK8ZZ, decoded by SO8OO in southeastern Poland. 1,076 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, 10m, across 34 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-09-30.

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 1,076 FT8 messages attributed to DK8ZZ as the transmitting token by decoded message structure across 34 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (44%), followed by 40 m (38%) and 10 m (11%). Most decodes (62%) fell within the six-hour window 04:00-10:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (70%); the estimated median was -5 dB.

Overview

1,076

Messages attributed

UTC dates decoded

119

Active 15-min windows

-5 dB

Estimated median S/N

Bands

160m · 3 80m · 53 60m · 17 40m · 413 20m · 472 10m · 118

First attributed message: 2026-06-06
Last attributed message: 2026-09-30 05:43 UTC

Observed FT8 message patterns

Attributed sample: 1,076 messages
Active dates: 34 UTC dates
Estimated median S/N: -5 dB
Estimated 10th-90th percentile: -13.4 to +8 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 48, moderate (-15 to -9 dB) 280, strong (≥ -8 dB) 748.

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 DK8ZZ in decoded directed-looking exchanges:

9A3SM · Croatia BG8SRK · China DK8MM · Fed. Rep. of Germany DL9MKN · Fed. Rep. of Germany E75C · Bosnia-Herzegovina E77EA · Bosnia-Herzegovina F5LOW · France F6FHZ · France G4IFX · England GJ0KYZ · Jersey HB9ACA · Switzerland HB9TOC · Switzerland

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 DK8ZZ

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: JO30 · 544 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,053 km (approx.)
Last such locator decoded: 2026-09-30 05:42 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	DK8ZZ S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-30 05:43	40m	+4 / -	W7ZR	- / -14	2	✓ Closing fragment
09-30 05:38	40m	+6 / -	KC4WQ	- / -3	2	Partial capture
09-30 05:29	40m	+5 / -	W7ZR	- / -14	3	Partial capture
09-30 05:28	40m	- / -	DG1ROL	-2 / -	3	Partial capture
09-30 05:16	40m	+3 / -	W7ZR	- / -18	4	Partial capture
09-30 05:15	40m	+6 / -	HK3AQJ	- / -12	2	✓ Closing fragment
09-30 05:14	40m	+6 / -	VA7ZT	- / -18	2	✓ Closing fragment
09-30 05:13	40m	+12 / -	HK3AB	- / -10	2	✓ Closing fragment
09-30 05:12	40m	- / -	LZ3CB	+13 / -	3	Partial capture
09-30 05:12	40m	- / -	EA5HM	-19 / -	3	Partial capture
09-30 05:10	40m	+11 / -	KE9CWZ	- / -23	3	✓ Closing fragment
09-30 05:03	80m	+16 / +3	VE3DZ	-12 / -3	5	✓ Full exchange observed
09-30 04:58	80m	+11 / -	KN6RO	- / -21	5	✓ Closing fragment
09-30 04:41	80m	+6 / -	PJ2/W4IPC	- / -	4	Partial capture
09-25 04:48	40m	+4 / -9	KS4OT	-12 / -1	3	✓ Full exchange observed
09-25 04:43	80m	+11 / -5	VP2MAA	-6 / -10	5	✓ Full exchange observed
09-25 04:41	80m	+17 / -	SM7IUN	-12 / 0	4	✓ Closing observed
09-25 04:38	80m	-2 / -	HK3TY	-21 / -17	3	✓ Closing observed
09-25 04:32	80m	+16 / -	SO100PKP	- / 0	2	Partial capture
09-25 04:31	80m	- / -	LZ2KV	-1 / -	4	Partial capture
09-25 04:30	60m	-3 / -	ES3BH	- / -	3	Partial capture
09-25 04:28	60m	+5 / -16	CE2SV	-6 / -9	5	✓ Full exchange observed
09-25 04:25	60m	-2 / -	IK4CBO	-9 / +4	5	✓ Full exchange observed
09-25 04:25	60m	+4 / -	N3FMC	- / -15	2	✓ Closing fragment
09-25 04:23	60m	0 / -	VE2LBI	- / -13	3	✓ Closing fragment
09-25 04:21	80m	- / -	DO1OAS	-9 / -	7	Partial capture
09-24 20:11	80m	+10 / -	RI1FJZ	- / -	8	Partial capture
09-24 20:08	160m	+13 / -8	RI1FJZ	-13 / -16	4	✓ Full exchange observed
09-11 05:22	40m	+8 / -	SP2ZST	- / -4	2	✓ Closing fragment
09-11 05:18	40m	+3 / -	OZ/KD0NDU	- / 0	2	Partial capture
09-11 05:16	40m	+5 / -	N8HRZ	- / -4	2	✓ Closing fragment
09-11 05:14	40m	+6 / -	SM7MDI	- / -11	2	✓ Closing fragment
09-11 05:13	40m	+7 / -	KX8XX	- / -10	2	✓ Closing fragment
09-11 04:55	40m	+14 / -	K5LY	- / -9	2	✓ Closing fragment
09-11 04:53	40m	+7 / -	K4RCW	- / -15	2	✓ Closing fragment
09-11 04:50	40m	+8 / -	N4HFE	- / -11	2	✓ Closing fragment
09-11 04:49	40m	+8 / -	PY8WW	- / -6	2	✓ Closing fragment
09-11 04:43	40m	+8 / -	KW8CW	- / -20	5	✓ Closing fragment
09-11 04:39	40m	+11 / -	HZ1TT	- / -25	6	Partial capture
09-11 04:33	40m	+6 / -	KS0USA	- / -17	3	✓ Closing fragment
09-11 04:31	40m	+1 / -	KC3QIS	- / -14	3	Partial capture
09-11 04:26	40m	-4 / -	W5ART	- / -19	2	✓ Closing fragment
09-11 04:24	40m	-1 / -	ES1AKOS	- / -22	2	Partial capture
09-11 04:22	40m	-4 / -	W5ART	- / -15	2	Partial capture
09-11 04:19	40m	- / -7	IZ8PPI	-20 / -	4	Partial capture
09-11 04:18	40m	+2 / -	HK3YL	- / -9	2	✓ Closing fragment
09-11 04:16	40m	+1 / -	KD2TDA	- / -7	3	✓ Closing fragment
09-11 04:12	40m	0 / -	N8OA	- / -19	2	✓ Closing fragment
09-11 04:10	40m	-8 / -	K8RLH	- / -10	2	✓ Closing fragment
09-11 04:07	40m	-8 / -	PY1USK	- / -	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
053100  +3 2348  CQ DX DK8ZZ JO30 (x3)
053230  +1 2348  XE1NK DK8ZZ JO30
053430  +3 2348  CQ DX DK8ZZ JO30
053730  +6 2348  KQ4EZN DK8ZZ RR73
053800  +7 2348  KC4WQ DK8ZZ -03 (x2)
053900 +13 2348  CQ DX DK8ZZ JO30 (x3)
054100  +6 2347  KN6TBF DK8ZZ -09
054200  -2 2348  CQ DX DK8ZZ JO30
054300  +5 2348  W7ZR DK8ZZ -14 (x2)

80m

UTC    dB Audio  Message
050200 +10 2369  CQ DX DK8ZZ JO30 (x3)
050330 +14 2369  KF8EXX DK8ZZ RR73
050345 -14 2369  DK8ZZ VE3DZ FN03
050400 +17 2369  VE3DZ DK8ZZ -03
050415 -12 2369  DK8ZZ VE3DZ R+03
050430 +14 2369  VE3DZ DK8ZZ RR73
050445 -11 2369  DK8ZZ VE3DZ 73
050500 +16 2369  CQ DX DK8ZZ JO30 (x5)
052430  +2 2162  <...> DK8ZZ JO30

60m

UTC    dB Audio  Message
042500  +4 2107  N3FMC DK8ZZ R-15 (x2)
042545  -8 1831  DK8ZZ IK4CBO JN54
042600  -4 2107  IK4CBO DK8ZZ +04
042615 -10 1831  DK8ZZ IK4CBO R+15
042630  -1 2107  IK4CBO DK8ZZ RR73
042645  -8 1831  DK8ZZ IK4CBO 73
042815  +6 2107  CE2SV DK8ZZ JO30
042830  -6 2492  DK8ZZ CE2SV -16
042845  +5 2107  CE2SV DK8ZZ R-09
042900  -5 2492  DK8ZZ CE2SV RR73
042915  +4 2107  CE2SV DK8ZZ 73
043000  -2 2107  ES3BH DK8ZZ JO30 (x3)

160m

UTC    dB Audio  Message
200845 +10 2179  RI1FJZ DK8ZZ JO30
200900 -13 1007  DK8ZZ RI1FJZ -08
200915 +14 2179  RI1FJZ DK8ZZ R-16 (x2)

20m

UTC    dB Audio  Message
064030  +2 1980  CQ DX DK8ZZ JO30 (x4)
064215 +10 2290  DK8ZZ DK1HZ JN48 (x2)
064300  -1 1979  VK4CME DK8ZZ JO30 (x5)
064745  +6 2290  DK8ZZ DK1HZ JN48 (x2)
135400 +11  826  DK8ZZ II7MGXX +11 (x2)

10m

UTC    dB Audio  Message
081615  -9 2233  E75C DK8ZZ R-19 (x2)
081715  -6 2201  DK8MM DK8ZZ R-05 (x2)
081815 -12 2201  CQ DK8ZZ JO30
081845  -3 2201  TA7D DK8ZZ JO30
081930 -15 2173  CQ DK8ZZ JO30                         a1
082000  -7 2174  SQ6PZL DK8ZZ -07 (x2)
082100  -5 2173  CQ DK8ZZ JO30
082130  -4 2173  G4IFX DK8ZZ JO30
082145 -10 2655  DK8ZZ G4IFX -12
082200  -4 2173  G4IFX DK8ZZ R-12 (x2)
112745 -13 1077  DK8ZZ CS8ABF +19

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.

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