N9SZ — 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: United States Most frequent locator attributed to this token: FM05

Receiver-side FT8 activity involving N9SZ, decoded by SO8OO in southeastern Poland. 46 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, across 6 UTC dates in the available aggregate history. Observed between 2026-06-16 and 2026-10-27.

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 N9SZ as the transmitting token by decoded message structure across 6 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (50%), followed by 40 m (33%) and 60 m (15%). 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 weak S/N range (61%); the estimated median was -16 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-16 dB

Estimated median S/N

Bands

80m · 23 60m · 7 40m · 15 20m · 1

First attributed message: 2026-06-16
Last attributed message: 2026-10-27 02:27 UTC

Observed FT8 message patterns

Attributed sample: 46 messages
Active dates: 6 UTC dates
Estimated median S/N: -16 dB
Estimated 10th-90th percentile: -21 to -11 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 28, moderate (-15 to -9 dB) 17, strong (≥ -8 dB) 1.

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 N9SZ in decoded directed-looking exchanges:

F4UJU · France ×2 II5GG · Italy IQ0AAX · Italy KE4GPS · United States KE4WLE · United States SV1OML · Greece SV9QWC · Crete Z31CZ · North Macedonia AC9HP · United States F4FPR · France G0AZH · England PC2J · Netherlands

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 N9SZ

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: FM05 · 25 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 7,754 km (approx.)
Last such locator decoded: 2026-10-27 02:26 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	N9SZ S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-27 02:26	80m	-17 / -17	SM6CCO	-10 / -25	7	✓ Full exchange observed
10-27 02:24	80m	- / -14	EC3A	-7 / -	2	Partial capture
10-27 02:23	80m	- / -25	S51SLO	+9 / -	2	✓ Closing fragment
10-27 02:17	80m	- / -23	F4EGM	+10 / -	3	✓ Closing fragment
10-27 02:17	80m	- / -7	ON1JP	-18 / -	5	Partial capture
10-27 02:16	80m	-16 / -	YY5EHT	- / -5	2	✓ Closing fragment
10-27 02:14	80m	-16 / -9	CT2HEX	-24 / -14	4	✓ Full exchange observed
10-27 02:14	80m	- / -9	F1PBZ	+14 / -	2	Partial capture
10-27 02:12	80m	-15 / -12	OM2WQ	+11 / -9	6	✓ Full exchange observed
10-27 02:11	80m	-11 / -	N8JSN	- / -12	2	✓ Closing fragment
10-27 02:10	80m	-14 / -10	IZ8VYU	+7 / -9	5	✓ Full exchange observed
10-27 02:09	80m	-21 / -9	F4UJU	+14 / -16	5	✓ Full exchange observed
10-15 00:53	80m	-13 / -	HA1BF	- / -	3	Partial capture
10-15 00:47	40m	-11 / -	EP2AES	- / -	3	Partial capture
10-10 00:59	40m	- / -11	SV1OML	-8 / -	2	✓ Closing fragment
10-10 00:47	40m	- / -10	IQ0AAX	-4 / -	6	✓ Closing fragment
10-01 00:56	40m	- / -21	R3KLE	0 / -	3	Partial capture
10-01 00:50	40m	- / -	Z31CZ	-14 / -	2	✓ Closing fragment
10-01 00:28	40m	- / -12	II5GG	0 / -	2	✓ Closing fragment
10-01 00:26	40m	- / -12	SV9QWC	-11 / -	3	✓ Closing fragment
08-22 02:42	20m	- / -13	UN0GY	-6 / -	3	Partial capture
08-21 01:24	60m	- / -	OM5JG	+3 / -	5	Partial capture
08-21 01:18	60m	- / -10	PC2J	-5 / -	9	✓ Closing fragment
08-21 01:10	60m	- / -	DD6ZV	+2 / -	3	Partial capture
08-21 01:09	60m	- / -8	IW0HLE	-14 / -	6	Partial capture
08-21 01:07	60m	- / -10	G0AZH	-2 / -	5	✓ Closing fragment
08-21 01:07	60m	- / -	PC2J	-1 / -	3	Partial capture
08-21 00:57	80m	- / -21	HB9CXZ	+15 / -	3	✓ Closing fragment
08-20 01:40	40m	-19 / -	W3GO	- / +8	2	Partial capture
08-20 01:35	40m	- / -14	YO4ASD	-12 / -	2	Partial capture
08-20 01:33	40m	-19 / -	KF9UG	- / -11	2	Partial capture
08-20 01:31	40m	-18 / -	KE4GPS	- / -10	2	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
021845 -17 1235  N9SZ ON1JP -07
021845  +9  928  N9SZ F4EGM 73
022015 -19 1235  N9SZ ON1JP -07 (x2)
022315  +9 1453  N9SZ S51SLO -25 (x2)
022415  -5 1911  N9SZ EC3A -14 (x2)
022615 -15  768  SM6CCO N9SZ FM05
022630 -11 1147  N9SZ SM6CCO -17
022645 -18  768  SM6CCO N9SZ FM05
022700 -12 1147  N9SZ SM6CCO -17
022715 -18  768  SM6CCO N9SZ R-25
022730  -8 1147  N9SZ SM6CCO RR73 (x2)

40m

UTC    dB Audio  Message
005215 -13 2245  N9SZ Z31CZ 73
005645  -7 2313  N9SZ R3KLE -21 (x3)
004730  -5  899  N9SZ IQ0AAX -10 (x6)
005945  -7  513  N9SZ SV1OML -11 (x2)
004745 -12  604  EP2AES N9SZ FM05 (x3)

10m

UTC    dB Audio  Message
171515 -16  906  N9SZ CR7BRV -18

20m

UTC    dB Audio  Message
024245  -9 2375  N9SZ UN0GY -13 (x3)

60m

UTC    dB Audio  Message
011830  -4 1211  N9SZ PC2J JO22 (x8)
012330 -17 1210  CQ N9SZ FM05
012345  +7 1212  N9SZ DD6ZV JO62
012415  -1 1200  N9SZ OM5JG JN98 (x5)

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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