Z33F — 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 Z33F, decoded by SO8OO in southeastern Poland. 692 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 26 UTC dates in the available aggregate history. Observed between 2026-06-09 and 2026-10-20.

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 692 FT8 messages attributed to Z33F as the transmitting token by decoded message structure across 26 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (38%), followed by 80 m (33%) and 20 m (27%). Several six-hour UTC windows tied for the largest share (61%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -9 dB.

Overview

692

Messages attributed

UTC dates decoded

Active 15-min windows

-9 dB

Estimated median S/N

Bands

80m · 227 40m · 263 20m · 187 10m · 15

First attributed message: 2026-06-09
Last attributed message: 2026-10-20 17:10 UTC

Observed FT8 message patterns

Attributed sample: 692 messages
Active dates: 26 UTC dates
Estimated median S/N: -9 dB
Estimated 10th-90th percentile: -20 to +2 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 154, moderate (-15 to -9 dB) 217, strong (≥ -8 dB) 321.

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 Z33F in decoded directed-looking exchanges:

DF8RU · Fed. Rep. of Germany ×2 KQ4NAQ · United States ×2 DO1OAS · Fed. Rep. of Germany ×2 CT2KCK · Portugal DN9KAY · Fed. Rep. of Germany DN9OPA · Fed. Rep. of Germany DN9RL · Fed. Rep. of Germany EA7L · Spain YO6POG · Romania 6K2MAS · Republic of Korea A41KB · Oman BA8BLK · China

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 Z33F

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 · 277 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 943 km (approx.)
Last such locator decoded: 2026-10-20 17:10 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	Z33F S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-20 17:11	40m	- / -	DK8AZ	+12 / -	3	Partial capture
10-20 17:10	40m	- / -	IN3JRZ	+1 / -	2	Partial capture
10-18 11:01	10m	- / -	EA7Z	-12 / -	2	Partial capture
10-18 10:56	10m	- / -3	CT2KCK	+1 / -	3	✓ Closing fragment
10-18 10:54	10m	- / -4	EA7L	-10 / -	3	✓ Closing fragment
10-18 03:34	80m	-10 / -16	R2DAY	-22 / -23	3	✓ Full exchange observed
10-18 03:34	80m	-19 / -20	RA1QEA	-3 / -	7	✓ Closing observed
10-18 03:32	80m	-6 / -8	R2OM	-16 / -17	4	✓ Full exchange observed
10-18 03:31	80m	-12 / -3	EW4DX	-4 / -22	5	✓ Full exchange observed
10-18 03:27	80m	-20 / -9	LA9GX	+10 / -5	6	✓ Full exchange observed
10-18 03:27	80m	-11 / -14	F4NGK	-9 / -18	4	✓ Full exchange observed
10-18 03:22	80m	-8 / -2	OE5DML	+1 / -17	5	✓ Full exchange observed
10-18 03:22	80m	-8 / -17	RX6LG	-10 / -10	5	✓ Full exchange observed
10-18 03:19	80m	-18 / -10	RA3ZDU	-17 / -17	6	✓ Full exchange observed
10-18 03:17	80m	- / -17	RA4FEA	-4 / -	3	Partial capture
10-18 03:15	80m	-17 / -6	R7RCH	-3 / -7	4	Partial capture
10-18 03:13	80m	-16 / -4	DO5AMV	+2 / -7	4	✓ Full exchange observed
10-18 03:13	80m	-20 / -14	SM7WNM	-8 / -18	5	✓ Full exchange observed
10-18 03:09	80m	- / -11	R4FDD	-2 / -	2	Partial capture
10-18 03:08	80m	-9 / -4	DO1OAS	+3 / -15	5	✓ Full exchange observed
10-18 03:08	80m	-8 / -12	R2OM	-12 / -21	9	Partial capture
10-18 03:08	80m	- / -	TF3VG	-13 / -	3	Partial capture
10-18 03:07	80m	-6 / -9	GM6URC	-6 / -18	4	✓ Full exchange observed
10-18 03:06	80m	- / -	F1IQH	-12 / -	2	Partial capture
10-18 03:05	80m	-8 / -9	DO5PY	+1 / -15	5	✓ Full exchange observed
10-18 03:05	80m	- / -11	F1PBZ	+7 / -	3	Partial capture
10-18 03:05	80m	- / -	ON4MAP	-10 / -	5	Partial capture
10-18 03:04	80m	- / -	DO1OAS	+2 / -	2	Partial capture
10-18 03:04	80m	-6 / -11	R4UA	-7 / -18	5	✓ Full exchange observed
10-18 03:02	40m	-14 / -	OK2FD	- / -18	2	Partial capture
10-18 03:00	40m	- / -	IZ1HJU	-12 / -	4	Partial capture
10-18 02:57	40m	-13 / -	R4HGP	-19 / -13	2	✓ Closing observed
10-18 02:52	40m	-14 / -11	R7LC	+5 / -2	10	✓ Full exchange observed
10-18 02:50	40m	- / -17	F3CJ	-21 / -	3	Partial capture
10-18 02:48	40m	-14 / -	PG0T	- / -12	2	✓ Closing fragment
10-18 02:47	40m	- / -	F3CJ	-24 / -	2	Partial capture
10-18 02:46	40m	-15 / -	SQ7BKG	- / -20	2	✓ Closing fragment
10-18 02:43	40m	-12 / -	SP2KW	- / -9	2	✓ Closing fragment
10-17 18:49	40m	-9 / -	TA2BKU	- / -15	3	✓ Closing fragment
10-17 18:41	40m	- / -5	9A5AGY	-8 / -	2	✓ Closing fragment
10-17 18:41	40m	-8 / -	LY4SC	-6 / -	5	✓ Closing observed
10-17 18:36	40m	-3 / -2	DD3ZZ	-4 / -15	4	✓ Full exchange observed
10-17 18:35	40m	-8 / -	UN6GO	- / -14	2	✓ Closing fragment
10-17 18:33	40m	-12 / -11	UT3UEH	-5 / -16	4	✓ Full exchange observed
10-17 18:32	40m	-6 / -	SN5MV	- / -12	2	✓ Closing fragment
10-17 18:29	40m	-4 / -	RA6BL	-10 / -18	4	✓ Closing observed
10-17 18:28	40m	- / -	PA7D	-16 / -	3	Partial capture
10-17 18:27	40m	-2 / -	SP9ALK	- / -14	2	✓ Closing fragment
10-11 04:14	80m	- / -	IU5SCG	-14 / -	5	Partial capture
10-11 04:10	80m	- / +6	DG1YHP	-1 / -	3	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
030045 -11 2093  Z33F IZ1HJU JN44
030100 -21 1253  CQ Z33F KN11                          a1
030115 -13 2093  Z33F IZ1HJU JN44
030130 -17 1253  CQ Z33F KN11
030145 -13 2093  Z33F IZ1HJU JN44
030200 -13 1253  OK2FD Z33F -18
030215 -11 2093  Z33F IZ1HJU JN44
030230 -14 1253  OK2FD Z33F -16
170930  -2 1455  CQ Z33F KN11 (x2)
171015  +3 1453  Z33F IN3JRZ JN56 (x2)
171115 +12 2759  Z33F DK8AZ JO30 (x3)

10m

UTC    dB Audio  Message
193500 -15 2367  Z33F DN9OPA JN38 (x2)
193545 -12  840  DN9OPA Z33F RR73
194030 -21 1897  DN9KAY Z33F -03 (x2)
194130 -15 1899  CQ Z33F KN11
194200 -23 1898  DF4TC Z33F -03
105415  -9 2054  Z33F EA7L IM86 (x3)
105615  -1  864  Z33F CT2KCK IM59 (x3)
110145 -13 2266  Z33F EA7Z IM67 (x2)

80m

UTC    dB Audio  Message
033300  -3 1758  R2OM Z33F 73
033330 -12 1758  CQ Z33F KN11 (x2)
033415  +0 1090  Z33F RA1QEA LO19
033430  -8 1757  R2DAY Z33F -23
033445  -6 1090  Z33F RA1QEA LO19
033445 -22 1758  Z33F R2DAY R-16
033500 -12 1757  R2DAY Z33F RR73
033515  +0 1090  Z33F RA1QEA LO19
033515 -18 1701  Z33F MM0HVU -17
033545  +1 1090  Z33F RA1QEA LO19 (x2)
033630 -19 1757  RA1QEA Z33F RR73
033645  -5 1090  Z33F RA1QEA 73
033745  -9 2563  Z33F RN2F 73

20m

UTC    dB Audio  Message
041400  -7 2248  Z33F EA4ITG IN80
041615 -21 1836  Z33F RA6OV KN87
042045  -8 1308  Z33F R6ZAJ KN98
042715  -5  771  Z33F R4WAM LO66
042715  +1 2522  Z33F KD7PCE R-10 (x2)
043315  -7  550  Z33F TI2FAF -11 (x2)
041500 -16 1188  Z33F K5TA R-18
043200  -6 1442  Z33F NY3C R-04 (x3)
051245 -23 1435  CQ Z33F KN11 (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

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