SQ7FSE — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Poland

Receiver-side FT8 activity involving SQ7FSE, decoded by SO8OO in southeastern Poland. 12 FT8 messages attributed to this token as transmitter, on 80m, 20m, across 3 UTC dates in the available aggregate history. Observed between 2026-08-21 and 2026-09-16.

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 12 FT8 messages attributed to SQ7FSE as the transmitting token by decoded message structure across 3 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (50%), followed by 20 m (50%). In this small sample, the estimated median decoder S/N was -10 dB; no usual signal pattern is inferred.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-10 dB

Estimated median S/N

Bands

80m · 6 20m · 6

First attributed message: 2026-08-21
Last attributed message: 2026-09-16 23:39 UTC

Observed FT8 message patterns

Attributed sample: 12 messages
Active dates: 3 UTC dates
Estimated median S/N: -10 dB
S/N percentile sample: Too small
Recurring-pattern threshold: Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 3, moderate (-15 to -9 dB) 3, strong (≥ -8 dB) 6.

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. The sample does not meet the threshold for a recurring time or signal-pattern claim (20 attributed messages, three UTC dates and five distinct 15-minute windows).

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with SQ7FSE in decoded directed-looking exchanges:

DN9TB · Fed. Rep. of Germany IT9VCE · Sicily PE1NPS · Netherlands MX0NCA · England N3GTY · United States SP2MS · Poland SQ1DOZ · Poland 5B4AMM · Cyprus

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	SQ7FSE S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-16 23:38	80m	+7 / +2	5B4AMM	+6 / -5	4	✓ Full exchange observed
09-16 23:35	80m	- / -	RV9CD	-21 / -	2	Partial capture
09-16 23:29	80m	+13 / -	DO8JB	-20 / -16	11	Partial capture
08-27 19:30	20m	- / -11	ON1JP	-2 / -	2	Partial capture
08-23 19:19	20m	-15 / -	SP2MS	- / -13	2	✓ Closing fragment
08-23 19:16	20m	-17 / -	SQ1DOZ	- / -19	2	✓ Closing fragment
08-15 10:08	10m	- / -	IT9VCE	-8 / -	2	✓ Closing fragment
07-24 22:28	10m	- / -	DN9DSP	-19 / -	3	Partial capture
07-02 12:08	20m	- / 0	MX0NCA	-21 / -	3	✓ Closing fragment
06-30 11:43	10m	- / -	DN9AD	-1 / -	3	Partial capture
06-30 11:37	10m	- / -17	PE1NPS	-13 / -	4	✓ Closing fragment
06-30 11:08	10m	- / -	DK8HC	-2 / -	3	Partial capture
06-30 11:08	10m	- / -	PE1NPS	-11 / -	2	Partial capture
06-30 11:07	10m	- / -	DN9TB	-11 / -	3	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
233030 -24 1503  SQ7FSE DO8JB JO32
233045 +13 1504  DO8JB SQ7FSE -20
233100 -17 1503  SQ7FSE DO8JB JO32
233115 +11 1505  DO8JB SQ7FSE -23
233200 -23 1503  SQ7FSE DO8JB JO32 (x4)
233500 -20  805  SQ7FSE RV9CD MO06 (x3)
233845  +6 2029  5B4AMM SQ7FSE -05
233900  +6 2029  SQ7FSE 5B4AMM R+02
233915  +8 2029  5B4AMM SQ7FSE RR73
233930  +5 2029  SQ7FSE 5B4AMM 73

20m

UTC    dB Audio  Message
120700 -14 1142  SQ7FSE PE9JAN JO22
120800 -19 1400  SQ7FSE MX0NCA JO02 (x3)
120900 -13 1904  SQ7FSE F5IXN JN23
201415 -10  891  N3GTY SQ7FSE RR73
191315 -12  523  KR3BST SQ7FSE -09
191645 -18 1339  SQ1DOZ SQ7FSE -19 (x2)
191900 -18 1179  SP2MS SQ7FSE -13 (x2)
193015  -4 1619  SQ7FSE ON1JP -11 (x2)

10m

UTC    dB Audio  Message
110900 -12 2313  SQ7FSE PE1NPS JO22
110900  -3  631  SQ7FSE DK8HC JO42 (x2)
113745 -13 2312  SQ7FSE PE1NPS JO22 (x4)
114315  +2  663  SQ7FSE DN9AD JO52 (x3)
222800 -17 1326  SQ7FSE DN9DSP JO31 (x3)
100830  -8  829  SQ7FSE IT9VCE R+14 (x2)

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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