DL4ZIP — 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: JO42

Receiver-side FT8 activity involving DL4ZIP, decoded by SO8OO in southeastern Poland. 111 FT8 messages attributed to this token as transmitter, on 80m, 40m, across 8 UTC dates in the available aggregate history. Observed between 2026-07-28 and 2026-10-09.

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 111 FT8 messages attributed to DL4ZIP 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 (90%), followed by 80 m (10%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -14 dB.

Overview

111

Messages attributed

UTC dates decoded

Active 15-min windows

-14 dB

Estimated median S/N

Bands

80m · 11 40m · 100

First attributed message: 2026-07-28
Last attributed message: 2026-10-09 23:32 UTC

Observed FT8 message patterns

Attributed sample: 111 messages
Active dates: 8 UTC dates
Estimated median S/N: -14 dB
Estimated 10th-90th percentile: -19 to -5 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 47, moderate (-15 to -9 dB) 45, strong (≥ -8 dB) 19.

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 DL4ZIP in decoded directed-looking exchanges:

W1EZ · United States ×2 AG2K · United States F5PBG · France K1JAK · United States K3EDP · United States N4MMR · United States PV8AJ · Brazil WD4OBP · United States

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 DL4ZIP

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: JO42 · 94 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 934 km (approx.)
Last such locator decoded: 2026-10-09 23:32 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	DL4ZIP S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-09 23:31	40m	-16 / -	N4NF	- / -	2	Partial capture
10-09 23:27	40m	-22 / -	8Q7PR	- / -	2	Partial capture
08-24 03:40	40m	-16 / -	WA2HIP	- / -	2	Partial capture
08-24 03:36	40m	-20 / -14	N4MMR	-16 / -	3	✓ Closing observed
08-23 02:10	40m	-16 / -	K1JAK	- / -11	4	✓ Closing fragment
08-23 02:06	40m	-18 / -6	IR7MGGC	-9 / +3	3	Partial capture
08-23 02:04	40m	-16 / -	W9OSI	- / -	2	Partial capture
08-23 01:59	40m	-10 / -	OA4ENG	- / -	5	Partial capture
08-23 01:52	40m	-8 / -21	DR800WE	-2 / -14	7	Partial capture
08-23 01:47	40m	-16 / -	WD4OBP	-21 / -19	5	✓ Closing observed
08-21 01:41	40m	- / -2	F5PBG	0 / -	4	✓ Closing fragment
08-02 02:28	80m	-1 / -	W4PSK	- / -	3	Partial capture
08-01 02:50	80m	+8 / -	W1EZ	- / -8	4	✓ Closing fragment
08-01 02:46	40m	-11 / -	W1EZ	- / -8	3	✓ Closing fragment
08-01 02:41	40m	-17 / -	K1MCO	- / -	6	Partial capture
08-01 02:39	40m	-16 / -25	AG2K	-7 / -	3	✓ Closing observed
08-01 02:36	40m	-16 / -	N1DNZ	- / -	5	Partial capture
08-01 02:32	40m	-15 / -	K1MCO	- / -	5	Partial capture
08-01 02:27	40m	-18 / -	KE9END	- / -	2	Partial capture
08-01 02:25	40m	-15 / -	N1WI	- / -	3	Partial capture
08-01 02:22	40m	-19 / -	N2BG	- / -	3	Partial capture
08-01 02:19	40m	-19 / -	K3EDP	- / -9	4	✓ Closing fragment
07-31 03:22	80m	+2 / -	AC8RJ	- / -	4	Partial capture
07-29 03:48	40m	-11 / -	WA2HIP	- / -	3	Partial capture
07-29 03:38	40m	-18 / -	N2FBV	- / -	2	Partial capture
07-29 03:35	40m	-15 / -	K4AKA	- / -	4	Partial capture
07-29 03:31	40m	-14 / -	VO1IV	- / -11	4	Partial capture
07-29 03:27	40m	-11 / -	IT9BYL	- / -	5	Partial capture
07-29 03:25	40m	-11 / -	T46FCR	- / -	3	Partial capture
07-28 01:12	40m	-10 / -	N2NDV	- / -	2	Partial capture
07-28 01:06	40m	-14 / -	N2NDV	- / -	2	Partial capture
07-28 00:51	40m	-9 / -	XQ3SK	- / -	4	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
020700 -19 1487  IR7MGGC DL4ZIP R+03
021015 -16 1799  K1JAK DL4ZIP JO42 (x4)
032100 -18  947  W4KAM DL4ZIP JO42
033615 -16 1974  DL4ZIP N4MMR -14 (x2)
033700 -20 1931  N4MMR DL4ZIP 73
034045 -15 2392  WA2HIP DL4ZIP JO42 (x2)
232700 -20 1783  8Q7PR DL4ZIP JO42 (x2)
233100 -18 1295  N4NF DL4ZIP JO42 (x2)

80m

UTC    dB Audio  Message
032215  +2 1256  AC8RJ DL4ZIP JO42 (x4)
025030  +7 1013  W1EZ DL4ZIP JO42 (x4)
022845  -1 1071  W4PSK DL4ZIP JO42 (x3)

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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