SQ7JZF — 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: Poland Most frequent locator attributed to this token: JO91

Receiver-side FT8 activity involving SQ7JZF, decoded by SO8OO in southeastern Poland. 20 FT8 messages attributed to this token as transmitter, on 80m, 40m, across 2 UTC dates in the available aggregate history. Observed between 2026-10-14 and 2026-10-15.

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 20 FT8 messages attributed to SQ7JZF as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (65%), followed by 80 m (35%). In this small sample, the estimated median decoder S/N was -8 dB; no usual signal pattern is inferred.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-8 dB

Estimated median S/N

Bands

80m · 7 40m · 13

First attributed message: 2026-10-14
Last attributed message: 2026-10-15 01:13 UTC

Observed FT8 message patterns

Attributed sample: 20 messages
Active dates: 2 UTC dates
Estimated median S/N: -8 dB
Estimated 10th-90th percentile: -14 to -3 dB
Recurring-pattern threshold: Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 1, moderate (-15 to -9 dB) 7, strong (≥ -8 dB) 12.

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 SQ7JZF in decoded directed-looking exchanges:

CR7BRV · Portugal ×2 PE1NAO · Netherlands ×2 DL5SUA · Fed. Rep. of Germany DL7VKD/P · Fed. Rep. of Germany EA1DBB · Spain EA4IPN · Spain EB7BXN · Spain EX7CQ · Kyrgyzstan F4AHJ · France F4GYY · France F5MOO · France F6BHK · France

Most frequent locator attributed to SQ7JZF

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: JO91 · 7 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 262 km (approx.)
Last such locator decoded: 2026-10-15 01:09 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	SQ7JZF S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-23 20:22	40m	- / -1	F6BHK	-4 / -	3	✓ Closing fragment
10-22 03:15	40m	- / -22	PQ5TA	-9 / -	2	✓ Closing fragment
10-22 03:12	40m	- / -11	HJ4MMO	-24 / -	2	✓ Closing fragment
10-21 03:12	40m	- / -1	IS0AWZ	-6 / -	2	Partial capture
10-21 03:04	40m	- / -18	M9MRX	-1 / -	3	✓ Closing fragment
10-21 02:59	40m	- / -17	G7KNF	+4 / -	2	✓ Closing fragment
10-21 02:42	40m	- / -1	IZ8DEP	-7 / -	2	✓ Closing fragment
10-20 01:38	40m	- / -6	P4/WE9V	+14 / -	2	Partial capture
10-20 01:34	40m	- / -7	EX7CQ	-12 / -	2	✓ Closing fragment
10-20 01:30	40m	- / 0	M9DNC	-8 / -	2	✓ Closing fragment
10-15 22:29	40m	- / +6	HB9DAQ	-6 / -	2	Partial capture
10-15 22:26	40m	- / -16	EB7BXN	-18 / -	2	✓ Closing fragment
10-15 02:54	40m	- / +10	F4NGR	-12 / -	2	Partial capture
10-15 02:50	40m	- / +5	GI4OGS	-1 / -	2	✓ Closing fragment
10-15 02:47	40m	- / -3	IU2VBP	-7 / -	3	Partial capture
10-15 02:40	40m	- / -12	EA4IPN	-12 / -	2	✓ Closing fragment
10-15 02:31	40m	- / -2	F5MOO	+12 / -	2	✓ Closing fragment
10-15 01:32	40m	- / 0	F4AHJ	-4 / -	2	✓ Closing fragment
10-15 01:25	40m	- / -	SV5BYP	-12 / -	2	Partial capture
10-15 01:23	40m	- / -5	CR7BRV	-5 / -	2	✓ Closing fragment
10-15 01:20	40m	- / -9	EA1DBB	-14 / -	3	✓ Closing fragment
10-15 01:12	80m	-10 / -15	DK8HC	-1 / -8	5	✓ Full exchange observed
10-15 01:11	80m	-3 / -15	GM6URC	-13 / -5	4	✓ Full exchange observed
10-15 01:09	80m	-14 / -3	PE1NAO	+1 / -3	5	✓ Full exchange observed
10-15 01:06	40m	- / -	RZ4FWA	-18 / -	3	Partial capture
10-15 00:59	40m	- / 0	TA2VUZ	-20 / -	2	✓ Closing fragment
10-14 10:18	40m	-9 / -	PD4RJ	- / -10	4	✓ Closing fragment
10-14 10:15	40m	-8 / -5	DL7VKD/P	-15 / +10	7	✓ Full exchange observed
10-14 10:14	40m	-2 / -18	IK3SSW	0 / -	5	Partial capture
10-14 10:12	40m	-8 / +1	DL5SUA	-21 / -	5	✓ Full exchange observed
10-14 05:03	40m	- / -9	YO7ZG	+3 / -	2	✓ Closing fragment
10-14 04:34	40m	- / 0	US0QV	-7 / -	2	✓ Closing fragment
10-14 04:25	40m	- / -1	UR5LAK	+4 / -	2	✓ Closing fragment
10-14 04:18	40m	- / -6	CR7BRV	-10 / -	2	✓ Closing fragment
10-14 04:16	40m	- / -1	F4GYY	-8 / -	3	✓ Closing fragment
10-14 04:07	40m	- / -12	PQ5TA	-10 / -	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
030015  +4  342  SQ7JZF G7KNF RR73
030415  +1 1241  SQ7JZF M9MRX -18 (x3)
031015 -21 2176  SQ7JZF EC1AP -11
031230  -5 1362  SQ7JZF IS0AWZ -01 (x2)
031230 -24 1678  SQ7JZF HJ4MMO -11 (x2)
031500  -9 2382  SQ7JZF PQ5TA -22 (x2)
200415  +4 1216  SQ7JZF IZ1LAT RR73
202200  -6 2099  SQ7JZF F6BHK JN24 (x3)

80m

UTC    dB Audio  Message
010900 -16 1411  PE1NAO SQ7JZF JO91
010915  +2 1412  SQ7JZF PE1NAO -03
010930 -14 1411  PE1NAO SQ7JZF R-03
010945  +0 1412  SQ7JZF PE1NAO RR73
011000 -11 1411  PE1NAO SQ7JZF 73
011130 -14 1693  SQ7JZF GM6URC -15
011145  -3 1694  GM6URC SQ7JZF R-05
011200 -12 1693  SQ7JZF GM6URC RR73
011215  -3 1694  GM6URC SQ7JZF 73
011230  +2  565  SQ7JZF DK8HC JO42
011245 -13 1694  DK8HC SQ7JZF -08
011300  -6  564  SQ7JZF DK8HC R-15
011315  -7 1694  DK8HC SQ7JZF RR73
011330  +1  565  SQ7JZF DK8HC 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.

CW

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

Explore CW reception at SO8OO

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