DL9CZ — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Fed. Rep. of Germany Most frequent locator attributed to this token: JN48

Receiver-side FT8 activity involving DL9CZ, decoded by SO8OO in southeastern Poland. 328 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 8 UTC dates in the available aggregate history. Observed between 2026-06-13 and 2026-09-10.

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 328 FT8 messages attributed to DL9CZ as the transmitting token by decoded message structure across 8 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (77%), followed by 20 m (14%) and 10 m (9%). Several six-hour UTC windows tied for the largest share (69%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -11 dB.

Overview

328

Messages attributed

UTC dates decoded

Active 15-min windows

-11 dB

Estimated median S/N

Bands

80m · 1 40m · 253 20m · 45 10m · 29

First attributed message: 2026-06-13
Last attributed message: 2026-09-10 06:37 UTC

Observed FT8 message patterns

Attributed sample: 328 messages
Active dates: 8 UTC dates
Estimated median S/N: -11 dB
Estimated 10th-90th percentile: -20 to -4 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 83, moderate (-15 to -9 dB) 145, strong (≥ -8 dB) 100.

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 DL9CZ in decoded directed-looking exchanges:

G0ANS · England UR4QWW · Ukraine 5B4AMM · Cyprus PD1HBL · Netherlands PD3LKN · Netherlands RC5F · European Russia UN7GBX · Kazakhstan CT1BFP · Portugal DA0OIE · Fed. Rep. of Germany DH1JAD · Fed. Rep. of Germany DJ8TX · Fed. Rep. of Germany DK2SW · Fed. Rep. of Germany

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 DL9CZ

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: JN48 · 169 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 941 km (approx.)
Last such locator decoded: 2026-09-10 06:37 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	DL9CZ S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-10 06:24	40m	-15 / -	UR5VPR	-6 / -22	2	Partial capture
09-10 06:13	40m	-9 / -	F5SJC	-15 / -10	5	✓ Closing observed
09-10 06:09	40m	-5 / -	SP4MPH	- / -1	6	Partial capture
09-10 06:07	40m	-8 / -5	I5JFG	-4 / -3	4	✓ Full exchange observed
09-10 06:06	40m	-5 / -	SQ6PZL	- / -15	2	✓ Closing fragment
09-10 06:01	40m	-5 / -	M0KCB/P	- / -1	2	✓ Closing fragment
09-10 05:56	40m	-4 / -	SP1MGM	- / -16	8	Partial capture
09-10 05:55	40m	-4 / -	ND9M	- / -13	2	✓ Closing fragment
09-10 05:54	40m	-8 / -12	R3LDK	0 / -19	4	✓ Full exchange observed
09-10 05:51	40m	-6 / -	M7KSV	- / -1	2	✓ Closing fragment
09-10 05:31	40m	-4 / -21	RC2Y	-3 / -18	10	✓ Full exchange observed
09-10 05:26	40m	-2 / -	ZL3TE	- / -15	4	Partial capture
09-10 05:18	40m	-15 / -	Z68PX	- / -10	2	Partial capture
09-10 05:13	40m	-18 / -	EA7AH	- / -11	2	✓ Closing fragment
09-10 05:12	40m	-15 / -18	DL3MIB	+6 / -17	19	✓ Full exchange observed
09-10 05:12	40m	-18 / -4	YO4NT	0 / -	3	✓ Closing observed
09-10 05:10	40m	-23 / -	YV6BXN	- / -21	2	Partial capture
09-10 05:09	40m	-20 / -	CO2MX	- / -8	3	Partial capture
09-10 05:05	40m	-24 / -	R2EA	-6 / -11	2	✓ Closing observed
09-10 05:02	40m	-21 / -	LA1SNA	-20 / -	2	✓ Closing observed
09-10 02:38	40m	- / -	R2DX	-16 / -	3	Partial capture
09-10 02:37	40m	- / -6	RC9WC	-20 / -	2	✓ Closing fragment
09-10 02:35	40m	- / -5	R2EA	+4 / -	3	Partial capture
09-10 02:30	40m	- / -3	R2EA	+12 / -	2	Partial capture
09-10 02:23	40m	- / -1	R2EA	+6 / -	2	Partial capture
09-10 02:10	80m	- / -	DH5BM	-8 / -	3	Partial capture
09-10 02:09	80m	- / -4	ON4MAP	-24 / -	2	✓ Closing fragment
09-10 02:09	80m	- / -9	F1PBZ	-2 / -	2	Partial capture
09-10 02:08	80m	- / -19	SP3HGD	-10 / -	2	✓ Closing fragment
09-09 12:40	60m	- / -	DF1IH	-14 / -	2	Partial capture
09-09 12:14	40m	- / -	SP3HGD	-20 / -	2	Partial capture
09-09 11:59	40m	- / +6	IV3VFP	-18 / -	2	Partial capture
09-09 11:53	40m	- / -2	DK4FH	-4 / -	2	Partial capture
09-09 11:50	40m	- / -	DL6REX	-20 / -	2	Partial capture
09-09 11:41	40m	- / -2	DL9KM	-6 / -	3	✓ Closing fragment
09-09 11:38	40m	- / +8	DK2SW	-12 / -	3	✓ Closing fragment
09-09 11:23	40m	- / -	HA3HZ	-8 / -	3	Partial capture
08-15 19:17	40m	-11 / +6	DH1JAD	-6 / -3	4	✓ Full exchange observed
08-15 19:13	40m	-9 / -3	DL7ARV	-1 / -11	5	✓ Full exchange observed
08-15 19:02	40m	-10 / -12	RY3F	0 / -10	4	✓ Full exchange observed
08-15 19:00	40m	-10 / -2	GJ0KYZ	-9 / +7	5	✓ Full exchange observed
08-15 18:55	40m	-12 / -	E70SZ	-3 / -1	3	✓ Closing observed
08-15 18:52	40m	-10 / -	DL9MY	-7 / -	3	✓ Closing observed
08-15 18:45	40m	- / -5	F1PBZ	-5 / -	4	Partial capture
08-15 18:44	40m	-9 / -	ON5RJ	- / +4	2	✓ Closing fragment
08-15 18:42	40m	-10 / -11	R8FB	-5 / -6	5	✓ Full exchange observed
08-15 18:40	40m	-6 / +8	OE5PEN	-14 / +3	3	Partial capture
08-15 17:14	20m	- / -11	UN7GBX	-15 / -	4	✓ Closing fragment
08-15 16:36	40m	- / -6	DA0OIE	-16 / -	2	✓ Closing fragment
08-15 16:24	40m	-17 / -15	HA2SP	-16 / -7	4	✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
061800  -8 1487  CQ DL9CZ JN48 (x7)
062130 -14 1487  HF2RR DL9CZ -04
062245 -11 1487  CQ DL9CZ JN48
062430  -6 1488  DL9CZ UR5VPR KN68
062445 -15 1487  UR5VPR DL9CZ -22
062745 -12 1487  CQ DL9CZ JN48 (x2)
063345 -13 1487  SP3HCA DL9CZ -04
063700 -12 1438  CQ DL9CZ JN48

80m

UTC    dB Audio  Message
020400 -10 1203  DL9CZ DH5BM JO41
020430  +2 1203  DL9CZ SP3HGD JO81
020500 -10 1202  DL9CZ R5AV RR73
020630  +2 2274  DL9CZ SN40KZE R-04
020800 -10 1202  DL9CZ SP3HGD R-19 (x2)
020900  -4 2456  DL9CZ F1PBZ -09
020930 -24 1373  DL9CZ ON4MAP R-04
020930  -1 2456  DL9CZ F1PBZ -09
021000 -24 1373  DL9CZ ON4MAP 73
021030  -9 1203  DL9CZ DH5BM JO41 (x3)
021545 -22 1202  CQ DL9CZ JN48
021645 -23 1600  DL9CZ ON1JP -15

60m

UTC    dB Audio  Message
124015 -15  877  DL9CZ DF1IH JN57 (x2)

20m

UTC    dB Audio  Message
105115 -15 1220  CQ DL9CZ JN48 (x2)
105215 -18 1220  PD1HBL DL9CZ -08
105230 -11 1220  DL9CZ PD1HBL R-01 (x2)
105630 -17 1220  PD0HLA DL9CZ R-13 (x2)
105900 -12 1220  DL9CZ PD3LKN R-15 (x2)
110115 -15 1070  M7OOT DL9CZ -17
110545 -20 1071  CQ DL9CZ JN48
171445 -16 1070  DL9CZ UN7GBX MN83 (x4)

10m

UTC    dB Audio  Message
211400 -14 1282  TI2JV DL9CZ -05
211530 -13 1283  EA3ISZ DL9CZ R+03
211700 -21 1282  CQ DL9CZ JN48 (x2)
214215 -10 1868  DL9CZ UR4QWW KN77 (x3)
215345 -16 1286  DL9CZ G0ANS RR73

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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