3Z25AB — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Poland

Receiver-side FT8 activity involving 3Z25AB, decoded by SO8OO in southeastern Poland. 69 FT8 messages attributed to this token as transmitter, on 80m, 60m, across 4 UTC dates in the available aggregate history. Observed between 2026-09-14 and 2026-09-17.

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 69 FT8 messages attributed to 3Z25AB as the transmitting token by decoded message structure across 4 UTC dates in the available aggregate history. The largest monitored-band total was 60 m (62%), followed by 80 m (38%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (100%); the estimated median was +8 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

+8 dB

Estimated median S/N

Bands

80m · 26 60m · 43

First attributed message: 2026-09-14
Last attributed message: 2026-09-17 05:58 UTC

Observed FT8 message patterns

Attributed sample: 69 messages
Active dates: 4 UTC dates
Estimated median S/N: +8 dB
Estimated 10th-90th percentile: -4 to +15 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 0, moderate (-15 to -9 dB) 0, strong (≥ -8 dB) 69.

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 3Z25AB in decoded directed-looking exchanges:

9A60CBM · Croatia ×3 TK/4O7CC · Corsica ×2 DL50IPARC · Fed. Rep. of Germany ×2 DP75BAC · Fed. Rep. of Germany ×2 PD2MAC/P · Netherlands TA2/TF1OL · Asiatic Turkey VP5/K5UR · Turks & Caicos Islands F/PA2JWN · France GX3RAF/P · England I/DH9YAX · Italy II6IALU · Italy II8IHBC · Italy

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.

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	3Z25AB S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-17 05:55	60m	+5 / -	9A60CBM	+9 / -	2	✓ Closing observed
09-17 05:46	60m	+13 / -	9A60CBM	-1 / -	2	✓ Closing observed
09-17 05:25	80m	+10 / -	SN40KZE	- / -	4	Partial capture
09-17 05:20	80m	+13 / -	GX3RAF/P	- / -	4	Partial capture
09-17 05:17	80m	+16 / -	II7IABB	0 / -	2	✓ Closing observed
09-16 05:21	60m	-3 / -	II8IHBC	+4 / -	4	✓ Closing observed
09-15 05:42	60m	+6 / -	<...>	- / -	2	✓ Closing fragment
09-15 05:30	60m	+6 / -	DL50IPARC	-1 / -	2	✓ Closing observed
09-15 05:26	60m	+6 / -	DL50IPARC	-10 / -	3	✓ Closing observed
09-15 05:23	80m	+13 / -	ZL1RPC/F	+15 / -	2	✓ Closing observed

Recent FT8 messages decoded at SO8OO

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

60m

UTC    dB Audio  Message
052930  +5  477  3Z25AB I/DH9YAX 73
053130  +6  743  9A60CBM 3Z25AB
053200  +5  743  CQ 3Z25AB (x2)
053500  +8  743  9A60CBM 3Z25AB RR73 (x2)
054615 -16 1901  <3Z25AB> DK7ZT +04
054615  -1  743  3Z25AB 9A60CBM 73
055400  +3  743  CQ 3Z25AB
055500  +5  743  9A60CBM 3Z25AB RR73
055515 -10 1122  <3Z25AB> DG7NFX JN59
055515  +9  743  3Z25AB 9A60CBM 73
055800  -1  743  CQ 3Z25AB
055830  +1  743  9A60CBM 3Z25AB RR73
055845  +6  810  3Z25AB F/PA2JWN 73

80m

UTC    dB Audio  Message
052030 +14 2196  GX3RAF/P 3Z25AB (x3)
052200 +13  787  SN40KZE 3Z25AB
052300  +8 2085  CQ 3Z25AB (x5)
052530 +10 2085  SN40KZE 3Z25AB (x4)
053615 +15  787  3Z25AB SN40KZ
053645  +9  787  3Z25AB 73

40m

UTC    dB Audio  Message
055500 -12  759  3Z25AB TK/4O7CC 73
055500 -24 2768  <3Z25AB> OH1ZE KP10
055500 -24 2630  <3Z25AB> F5LOW -15
055630 +12 2550  3Z25AB VP5/K5UR 73
055900  +3 2743  <3Z25AB> YO3GNF KN34
055900 -11 2246  <3Z25AB> R4IK -14
055900  +1 2413  3Z25AB PD2MAC/P 73
060130  +3 2742  3Z25AB TA2/TF1OL 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.

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