DL9ZA — 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: JN47

Receiver-side FT8 activity involving DL9ZA, decoded by SO8OO in southeastern Poland. 46 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, across 2 UTC dates in the available aggregate history. Observed between 2026-08-23 and 2026-09-12.

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 46 FT8 messages attributed to DL9ZA as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (59%), followed by 160 m (22%) and 60 m (20%). In this small sample, the estimated median decoder S/N was -5 dB; no usual signal pattern is inferred.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-5 dB

Estimated median S/N

Bands

160m · 10 80m · 27 60m · 9

First attributed message: 2026-08-23
Last attributed message: 2026-09-12 21:45 UTC

Observed FT8 message patterns

Attributed sample: 46 messages
Active dates: 2 UTC dates
Estimated median S/N: -5 dB
Estimated 10th-90th percentile: -13 to +2 dB
Recurring-pattern threshold: Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 3, moderate (-15 to -9 dB) 11, strong (≥ -8 dB) 32.

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. The sample does not meet the threshold for a recurring time or signal-pattern claim (20 attributed messages, three UTC dates and five distinct 15-minute windows).

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with DL9ZA in decoded directed-looking exchanges:

DL3JHK · Fed. Rep. of Germany ×2 9A4ZM · Croatia DD7EE · Fed. Rep. of Germany OK1DXR · Czech Republic DL4YDR · Fed. Rep. of Germany OE6TNO · Austria OT4R · Belgium DL1UDO · Fed. Rep. of Germany DM2BM · Fed. Rep. of Germany DO4MAJ · Fed. Rep. of Germany IQ4JO · Italy SP9UPH · Poland

Most frequent locator attributed to DL9ZA

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: JN47 · 18 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 975 km (approx.)
Last such locator decoded: 2026-09-12 21:45 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	DL9ZA S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-12 21:43	160m	-12 / -	DD7EE	-17 / -4	5	✓ Closing observed
09-12 21:41	160m	-16 / -3	9A4ZM	0 / -	6	✓ Full exchange observed
09-12 21:41	160m	- / +2	F1PBZ	-10 / -	3	Partial capture
09-12 21:41	160m	-11 / 0	OK1DXR	+10 / -	5	✓ Full exchange observed
09-12 21:19	60m	+2 / +1	OE6TNO	-8 / +10	5	✓ Full exchange observed
09-12 21:18	60m	0 / +4	OT4R	-8 / -5	4	✓ Full exchange observed
09-12 21:17	60m	-4 / -	DL4YDR	-12 / -	5	✓ Full exchange observed
08-23 18:41	80m	-14 / -7	DL1UDO	-4 / +7	5	✓ Full exchange observed
08-23 18:39	80m	-7 / -11	DL3JHK	-20 / -11	4	✓ Full exchange observed
08-23 18:37	80m	- / -	DO5SL	-22 / -	2	Partial capture
08-23 18:37	80m	-4 / -12	DM2BM	-11 / -15	5	✓ Full exchange observed
08-23 18:36	80m	-4 / -3	SP9UPH	+23 / +7	5	✓ Full exchange observed
08-23 18:34	80m	-12 / -1	IQ4JO	-2 / -	5	✓ Full exchange observed
08-23 18:31	80m	+4 / -	ER5DX	- / -	2	Partial capture
08-23 18:29	80m	-1 / +1	OE5ABL	-1 / +8	4	Partial capture
08-23 18:27	80m	0 / +6	DO4MAJ	-6 / -	6	✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

160m

UTC    dB Audio  Message
214230 +10 1295  DL9ZA OK1DXR 73
214230  -8 2393  DL9ZA F1PBZ +02
214230  -1 1205  DL9ZA 9A4ZM JN86
214245 -17 1209  9A4ZM DL9ZA +15
214300 -18 1589  DL9ZA DD7EE JO41
214300  +6 1205  DL9ZA 9A4ZM R-03
214315 -15 1209  9A4ZM DL9ZA RR73
214330 -22 1590  DL9ZA DD7EE JO41
214330  -2 1205  DL9ZA 9A4ZM 73
214345  -9 1209  DD7EE DL9ZA -04 (x2)
214430 -12 1590  DL9ZA DD7EE 73
214445  -4 1209  CQ DL9ZA JN47 (x3)

60m

UTC    dB Audio  Message
211715  -9 1333  DL4YDR DL9ZA +11
211730 -11 1694  DL9ZA DL4YDR R+15
211745  +1 1334  DL4YDR DL9ZA RR73
211800  -4 1467  DL9ZA OT4R +04
211800 -14 1693  DL9ZA DL4YDR 73
211815  +1 1334  OT4R DL9ZA R-05
211830 -13 1467  DL9ZA OT4R RR73
211845  -1 1333  OT4R DL9ZA 73
211915  +0 1334  CQ DL9ZA JN47
211930  -7 1334  DL9ZA OE6TNO JN77
211945  +3 1334  OE6TNO DL9ZA +10
212000  -7 1334  DL9ZA OE6TNO R+01
212015  +1 1334  OE6TNO DL9ZA RR73
212030 -11 1334  DL9ZA OE6TNO 73
212115 +14  559  7X5CY DL9ZA JN47

80m

UTC    dB Audio  Message
183815 -24 1977  DL9ZA DO5SL JO31
183815  -4 1310  DM2BM DL9ZA RR73
183830 -14 1309  DL9ZA DM2BM 73
183845 -10 1310  CQ DL9ZA JN47
183915  -8 1310  DL3JHK DL9ZA -11
183930 -19 1310  DL9ZA DL3JHK R-11
183945  -6 1310  DL3JHK DL9ZA RR73
184000 -22 1310  DL9ZA DL3JHK 73
184030  -7 1310  CQ DL9ZA JN47 (x2)
184115 -10 1500  DL9ZA DL1UDO JO31
184130  -8 1310  DL1UDO DL9ZA +07
184145  +1 1500  DL9ZA DL1UDO R-07
184200 -20 1310  DL1UDO DL9ZA RR73
184215  -2 1500  DL9ZA DL1UDO 73

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

FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee