Z35Z — 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: North Macedonia Most frequent locator attributed to this token: KN11

Receiver-side FT8 activity involving Z35Z, decoded by SO8OO in southeastern Poland. 478 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, 10m, across 22 UTC dates in the available aggregate history. Observed between 2026-06-11 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 478 FT8 messages attributed to Z35Z as the transmitting token by decoded message structure across 22 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (37%), followed by 160 m (31%) and 40 m (16%). Most decodes (69%) fell within the six-hour window 17:00-23:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -11 dB.

Overview

478

Messages attributed

UTC dates decoded

Active 15-min windows

-11 dB

Estimated median S/N

Bands

160m · 148 80m · 178 60m · 60 40m · 76 20m · 11 10m · 5

First attributed message: 2026-06-11
Last attributed message: 2026-10-22 22:09 UTC

Observed FT8 message patterns

Attributed sample: 478 messages
Active dates: 22 UTC dates
Estimated median S/N: -11 dB
Estimated 10th-90th percentile: -21 to -1 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 128, moderate (-15 to -9 dB) 168, strong (≥ -8 dB) 182.

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 Z35Z in decoded directed-looking exchanges:

EA5IT · Spain ×3 LZ1ZF · Bulgaria ×2 EA8UP · Canary Islands ×2 R7DX · European Russia ×2 9A2RD · Croatia 9A5AFP · Croatia 9A5AGY · Croatia 9A5E · Croatia 9A6OY · Croatia DC0GL · Fed. Rep. of Germany DF8FT · Fed. Rep. of Germany DL6II · 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 Z35Z

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: KN11 · 45 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 943 km (approx.)
Last such locator decoded: 2026-10-22 22:08 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	Z35Z S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-22 22:08	160m	-7 / -14	9A5E	+7 / -	4	✓ Closing observed
10-22 22:02	160m	-8 / -	UA4FKT	- / -11	2	Partial capture
10-22 21:56	160m	-14 / -	UA4FKT	+3 / -12	4	Partial capture
10-22 21:56	160m	-14 / -19	9A5AFP	+5 / -	3	✓ Closing observed
10-22 21:48	160m	-17 / -	EX7DY	- / -18	4	Partial capture
10-22 21:44	160m	- / -3	HA8EV	+18 / -	2	Partial capture
10-22 21:42	160m	-22 / -7	HA7TM	+10 / -	4	✓ Closing observed
10-22 21:36	160m	-18 / -14	LY2J	+9 / -8	3	✓ Full exchange observed
10-21 04:44	160m	-14 / -	OM3ZAS	- / -12	2	Partial capture
10-21 04:17	160m	- / -	AE5B	-15 / -	2	Partial capture
10-21 04:17	160m	-16 / -	IZ7NLJ	- / -9	2	Partial capture
10-21 04:13	160m	-14 / -18	DL6II	+1 / -	10	✓ Closing observed
10-21 04:10	160m	-6 / -6	9A6OY	-12 / -4	4	✓ Full exchange observed
10-21 04:08	160m	-10 / -14	R7LV	-9 / -19	5	✓ Full exchange observed
10-21 04:05	160m	- / -	F6ECI	0 / -	3	Partial capture
10-21 04:05	160m	-9 / -	DL6II	0 / -19	8	Partial capture
10-21 04:03	160m	-4 / -	SV8SXV	-17 / -5	6	✓ Full exchange observed
10-21 04:03	160m	0 / -4	IT9NOV	-11 / -11	4	✓ Full exchange observed
10-21 04:02	160m	+2 / -5	SP8XGU	-3 / -13	4	✓ Full exchange observed
10-19 18:37	160m	- / -	UX7BM	+1 / -	2	✓ Closing fragment
10-19 04:40	160m	- / -17	IW3GRG	0 / -	3	✓ Closing fragment
10-18 20:17	160m	-20 / -	EI7BA	- / -20	3	Partial capture
10-18 19:57	160m	-20 / -10	OH0Z	-9 / -17	6	✓ Full exchange observed
10-18 19:54	160m	-21 / -	9K2HS	- / -20	3	Partial capture
10-18 19:44	160m	- / -	IK2GWH	-22 / -	3	Partial capture
10-18 19:43	160m	-15 / -9	SP9MZX	0 / -3	5	✓ Full exchange observed
10-18 19:41	160m	-16 / -17	IW2EQR	-20 / -16	3	✓ Full exchange observed
10-18 19:40	160m	-17 / -13	DC0GL	-2 / -18	5	✓ Full exchange observed
10-18 19:39	160m	-13 / -19	R80SAA	+7 / -14	5	✓ Full exchange observed
10-18 19:35	160m	-17 / -	LZ1ZF	- / -12	2	✓ Closing fragment
10-18 04:55	160m	- / -13	PA0O	+21 / -	2	✓ Closing fragment
10-18 04:48	160m	- / -17	PI4DX	+1 / -	2	✓ Closing fragment
10-17 22:02	160m	- / -	UA4FKT	-8 / -	4	Partial capture
10-17 22:01	160m	-10 / -14	UA7K	+6 / -5	5	✓ Full exchange observed
10-17 22:00	160m	- / -	9A2RD	+2 / -	4	✓ Closing fragment
10-17 21:58	160m	-16 / -12	F5NZ	-10 / -15	5	✓ Full exchange observed
10-17 21:51	160m	- / -	SO5WD	-4 / -	2	Partial capture
10-17 21:49	160m	- / -	DD7EE	-12 / -	2	Partial capture
10-17 21:49	160m	- / -	SO5WD	+2 / -	2	Partial capture
10-17 21:48	160m	- / -20	RK3AW	-8 / -	2	Partial capture
10-17 20:39	160m	-16 / -	IK2EST	- / -12	2	✓ Closing fragment
10-17 20:35	160m	-11 / -	RA0AF	- / -10	3	Partial capture
10-17 20:34	160m	- / -	IW5ABF	-23 / -	2	Partial capture
10-17 20:32	160m	-12 / -10	I1APQ	-8 / -6	6	✓ Full exchange observed
10-17 20:31	160m	-18 / -	JA4FCV	- / -17	2	✓ Closing fragment
10-17 20:29	160m	-16 / -	UA0TP	- / -19	4	Partial capture
10-17 20:20	160m	-13 / -	JH4AAG	- / -13	3	✓ Closing fragment
10-17 20:20	160m	- / -	IU0NAD	-17 / -	2	Partial capture
10-17 20:19	160m	-10 / -	JI4JKO	- / -13	2	Partial capture
10-17 19:50	160m	-22 / -	IZ5NRF	+1 / -3	7	✓ Closing observed

Recent FT8 messages decoded at SO8OO

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

160m

UTC    dB Audio  Message
215615  +6 2157  Z35Z 9A5AFP R-19
215630 -14 1717  9A5AFP Z35Z RR73
215645  +3 1718  Z35Z UA4FKT LO23
215645  +4 2157  Z35Z 9A5AFP 73
215715  +3 1718  Z35Z UA4FKT LO23 (x2)
215800 -14 2105  UA4FKT Z35Z -12
215900 -24 1871  SV3AGT Z35Z -12
220230 -10  978  UA4FKT Z35Z -11 (x2)
220800  +2  683  CQ Z35Z KN11
220845  +7 2133  Z35Z 9A5E JN75 (x2)
220930  -7  683  9A5E Z35Z RR73
220945  +8 2133  Z35Z 9A5E 73

40m

UTC    dB Audio  Message
043630 -16 2046  W9XY Z35Z R-10
043645 -10  794  Z35Z CT1BFP IM59 (x2)
043900 -12 2046  CQ Z35Z KN11 (x3)
044030  -9 2046  SP4DIS Z35Z -05 (x2)
044115 -24 1808  Z35Z EA5IT IM99
044130  -6 2046  EA5IT Z35Z -20 (x3)
044315 -24 1095  Z35Z PG0T JO21
044430 -12 2038  PA1VW Z35Z -21 (x2)

80m

UTC    dB Audio  Message
040830 -19 1453  Z35Z ON4MAP JO20
040845  -2 1231  EA5IT Z35Z -12
040900 -20 1452  Z35Z ON4MAP JO20
040915  +0 1230  EA5IT Z35Z RR73
040930 -13 1452  Z35Z ON4MAP JO20
040930 +15 2677  Z35Z OE5DML JN78 (x2)
041015 -11 1230  EA5IT Z35Z RR73
041100 +16 2718  Z35Z OE5DML R-06
041115  -3 1230  OE5DML Z35Z RR73
041130 +12 2718  Z35Z OE5DML 73
041200  +4 1230  Z35Z LZ2KV KN33
041215  -6 1230  LZ2KV Z35Z +00
041230  +6 1231  Z35Z LZ2KV R-08 (x2)

60m

UTC    dB Audio  Message
175345  -8 1705  BD8ENU Z35Z RR73
175400  -7 2483  Z35Z DK7ZT -02
175400  -6 2039  Z35Z BD8ENU 73
175415 -14 1354  Z35Z YO4BEW KN35
175415  +8 2560  Z35Z OH6MW KP20
175430  -3 2483  Z35Z DK7ZT -02
175445 -13 1354  Z35Z YO4BEW KN35
175445  -9 1705  LZ1VDK Z35Z RR73
175530  +7 2560  Z35Z OH6MW KP20
175530  -3 2483  Z35Z DK7ZT RR73
175600 +11 2560  Z35Z OH6MW KP20
175615 -10 1705  OH6MW Z35Z -01
175630  +7 2560  Z35Z OH6MW R-11
175645  -4 1705  OH6MW Z35Z RR73
175700  +3 2560  Z35Z OH6MW 73

20m

UTC    dB Audio  Message
050345 -24 1524  Z35Z RA9ACA -11
052245 -22 1256  Z35Z EB3DIY -07
052715  -7 3095  Z35Z OA1F -13
053045  -6  597  Z35Z EA7FU -01
053900 -11  342  Z35Z YN7DS R+02
053215 -10 1637  Z35Z JY5IB 73

10m

UTC    dB Audio  Message
180100 -22 1604  CX6TU Z35Z -14
180515 -16 1604  PY5QR Z35Z -14
180615 -23 1604  PY4AW Z35Z -14 (x2)
180815 -18 1604  LU9ESP Z35Z -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.

CW

No CW receptions recorded for this callsign in the last 30 days.

Explore CW reception at SO8OO

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