SQ7HJX — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Poland Most frequent locator attributed to this token: JO91

Receiver-side FT8 activity involving SQ7HJX, decoded by SO8OO in southeastern Poland. 1,070 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, across 55 UTC dates in the available aggregate history. Observed between 2026-06-10 and 2026-09-10.

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 1,070 FT8 messages attributed to SQ7HJX as the transmitting token by decoded message structure across 55 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (57%), followed by 80 m (29%) and 60 m (11%). Most decodes (56%) fell within the six-hour window 18:00-00:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (70%); the estimated median was -2.7 dB.

Overview

1,070

Messages attributed

UTC dates decoded

173

Active 15-min windows

-2.7 dB

Estimated median S/N

Bands

160m · 37 80m · 313 60m · 113 40m · 607

First attributed message: 2026-06-10
Last attributed message: 2026-09-10 16:05 UTC

Observed FT8 message patterns

Attributed sample: 1,070 messages
Active dates: 55 UTC dates
Estimated median S/N: -2.7 dB
Estimated 10th-90th percentile: -13 to +14.2 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 62, moderate (-15 to -9 dB) 262, strong (≥ -8 dB) 746.

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 SQ7HJX in decoded directed-looking exchanges:

IK4LZH · Italy ×4 F1IQH · France ×3 M0IEP · England ×3 DK0ACI · Fed. Rep. of Germany ×2 DL9KM · Fed. Rep. of Germany ×2 TA3NK · Asiatic Turkey ×2 OM5JG · Slovak Republic ×2 SP9JMZ · Poland ×2 G8OO · England ×2 WA1NGH · United States ×2 PA3BRB · Netherlands UT4PA · Ukraine

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 SQ7HJX

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 · 696 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 262 km (approx.)
Last such locator decoded: 2026-09-10 16:05 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	SQ7HJX S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-10 16:05	40m	- / -	S51PV	-15 / -	2	Partial capture
09-03 21:37	160m	+6 / +5	SQ9KDO	0 / -21	7	Partial capture
08-30 18:49	80m	- / -	SP5IDR	+6 / -	3	Partial capture
08-30 18:41	80m	+16 / +3	SP9WAZ	-4 / -6	4	✓ Full exchange observed
08-29 00:00	60m	- / -	DL7ARV	+5 / -	7	Partial capture
08-28 23:59	60m	0 / -10	WA1NGH	-23 / -16	4	✓ Full exchange observed
08-28 23:58	60m	- / -	YO6LM	0 / -	6	Partial capture
08-28 23:54	40m	- / -5	PA4PA	-5 / -	3	✓ Closing fragment
08-28 23:54	80m	- / -	DO8JB	-4 / -	6	Partial capture
08-28 23:50	80m	+12 / -7	EA1CP	-4 / 0	5	✓ Full exchange observed
08-28 23:50	80m	- / -3	R2EN	0 / -	4	Partial capture
08-23 03:41	40m	- / -5	EI4JFB	-5 / -	3	✓ Closing fragment
08-23 03:40	40m	- / -6	F1PBZ	+11 / -	3	Partial capture
08-23 03:32	80m	+13 / -8	F5OYA/P	-14 / -12	50	✓ Full exchange observed
08-23 03:30	80m	+16 / -8	S52UF	+11 / +2	4	✓ Full exchange observed
08-23 03:30	80m	+14 / -9	SP1ZMO	+9 / +4	8	✓ Full exchange observed
08-22 03:36	80m	- / -	F4IIX	-18 / -	2	Partial capture
08-22 03:36	80m	- / -	S52UF	-9 / -	7	Partial capture
08-22 03:35	80m	- / -	DO5PY	-21 / -	2	Partial capture
08-22 03:35	80m	+8 / -3	US5CCO	-13 / -11	5	✓ Full exchange observed
08-21 07:34	40m	+2 / -	OJ0JR	- / -12	3	✓ Closing fragment
08-20 20:45	40m	- / +6	DL1EDR	+6 / -	4	✓ Closing fragment
08-20 20:43	40m	-10 / +10	DB3MAX	0 / -	3	✓ Closing observed
08-20 19:36	80m	- / -	R5VCR	-13 / -	3	Partial capture
08-20 19:33	80m	+12 / -4	DK0ACI	-9 / -14	5	✓ Full exchange observed
08-20 19:30	40m	- / -	DL8UVG	+3 / -	3	✓ Closing fragment
08-20 19:28	40m	- / +1	SP5CTY	0 / -	5	Partial capture
08-20 19:26	40m	- / -	DL6RS	+11 / -	12	Partial capture
08-20 18:39	80m	+13 / -1	LY8O	+2 / +4	4	✓ Full exchange observed
08-20 18:38	80m	+17 / -1	5P2K	-19 / -12	4	✓ Full exchange observed
08-20 18:36	80m	+15 / +2	OK1DBE	-4 / +8	5	✓ Full exchange observed
08-20 18:33	60m	- / -	YO4FRF	-16 / -	2	Partial capture
08-20 18:22	80m	+11 / -	UR4LG	-6 / -19	5	Partial capture
08-20 18:20	40m	+2 / -	F5PMF	-7 / -12	4	✓ Closing observed
08-20 14:59	20m	- / -21	DL3BH	-11 / -	3	Partial capture
08-20 14:45	40m	- / -	HA1DUQ	-14 / -	2	Partial capture
08-20 14:37	20m	- / -	RA1QX	-4 / -	3	Partial capture
08-20 14:37	20m	- / -15	PD0HLA	-12 / -	4	Partial capture
08-20 14:13	10m	- / -1	DN9DKN	-8 / -	3	✓ Closing fragment
08-20 14:09	10m	- / +1	DL5GE	-22 / -	2	Partial capture
08-20 06:42	40m	- / -	IK4LZH	-3 / -	3	✓ Closing fragment
08-20 06:41	40m	- / -3	GJ0KYZ	-14 / -	2	✓ Closing fragment
08-19 06:52	40m	-10 / -	SP5TAE	- / -4	2	✓ Closing fragment
08-18 17:52	40m	- / -	UT3ED	-13 / -	5	Partial capture
08-18 17:49	40m	-10 / -	SV9MBH	- / -24	2	✓ Closing fragment
08-18 16:18	40m	-16 / -3	DK0ACI	-10 / -13	4	✓ Full exchange observed
08-18 16:11	40m	-18 / -	SV9MBH	- / -17	2	Partial capture
08-18 16:07	40m	-16 / -	IV3VFP	-20 / -9	4	✓ Closing observed
08-18 16:06	40m	-16 / -	SP5IDR	-19 / 0	5	Partial capture
08-18 16:06	40m	-14 / -	DL1THB	-14 / 0	4	✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
034030  +9 2687  SQ7HJX F1PBZ -06
034100  -2  492  SQ7HJX EI4JFB IO63
034100 +11 2687  SQ7HJX F1PBZ -06
034130  -5  492  SQ7HJX EI4JFB R-05
034130 +13 2687  SQ7HJX F1PBZ -06
034200  -8  492  SQ7HJX EI4JFB 73
034500  -6 1035  SQ7HJX IZ5FSO JN53
235400  -8 1033  SQ7HJX PA4PA JO22 (x3)
152045  +4 1033  CQ SQ7HJX JO91
184815  +3 1033  SQ7HJX DG3DAF JO41
160315 -14  940  SQ7HJX G6MTI R-03
160515 -15 2221  SQ7HJX S51PV JN76 (x2)

80m

UTC    dB Audio  Message
184215 +15 1001  SP9WAZ SQ7HJX 73
184445 +21 1001  CQ SQ7HJX JO91 (x3)
184600 -24 1977  SQ7HJX SP2BT JO84
184615 +16 1001  CQ SQ7HJX JO91
184645 +17 1001  SP5DFK/QRP SQ7HJX -12
184815 +10 1001  CQ SQ7HJX JO91
184900  +3 1319  SQ7HJX SP5IDR KO01 (x3)
225630  +1 1001  CQ SQ7HJX JO91 (x4)

160m

UTC    dB Audio  Message
034315  +4  995  CQ SQ7HJX JO91 (x8)
213730  +5  995  SQ9KDO SQ7HJX -21 (x6)
214045  +0  995  SQ7HJX SQ9KDO R+05

60m

UTC    dB Audio  Message
000015  +0 1030  CQ SQ7HJX JO91
000030  +2 2195  SQ7HJX YO6LM KN25
000030  +7 2729  SQ7HJX DL7ARV JO62
000045  +4 1030  CQ SQ7HJX JO91
000100  -2 2195  SQ7HJX YO6LM KN25
000100  +7 2729  SQ7HJX DL7ARV JO62
000115  -7 1030  CQ SQ7HJX JO91
000130  +7 2729  SQ7HJX DL7ARV JO62
000145  +2 1030  CQ SQ7HJX JO91
000200  +1 2729  SQ7HJX DL7ARV JO62
000215  +0 1030  CQ SQ7HJX JO91
000230  +5 2729  SQ7HJX DL7ARV JO62
000230  -2 2195  SQ7HJX YO6LM KN25 (x2)
000300  +2 2729  SQ7HJX DL7ARV JO62

20m

UTC    dB Audio  Message
123700 -14 1066  SQ7HJX IZ4AIF 73
124400 -18 2033  SQ7HJX PD1ADA JO21 (x3)
143715 -15 2593  SQ7HJX PD0HLA -15 (x2)
143745  +0 1899  SQ7HJX RA1QX KO99 (x3)
143915 -11 2593  SQ7HJX PD0HLA -13 (x2)
145915 -11 2123  SQ7HJX DL3BH R-21 (x3)
072645 -16 2169  SQ7HJX OE6JFG JN77

10m

UTC    dB Audio  Message
172700  -7  395  SQ7HJX R3LC KO64 (x3)
090145 -17 1573  SQ7HJX DN9SGE JO42 (x2)
125330 -11 1072  SQ7HJX PD1UM JO30 (x2)
140915 -21 1485  SQ7HJX DL5GE JO31 (x2)
141215 -10 1071  SQ7HJX UA6YW LN04
141215  -9 2489  SQ7HJX F1PBZ -06
141315  -6  776  SQ7HJX DN9DKN JO31 (x3)
141915 -18 1071  SQ7HJX OZ5AGJ JO47

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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