SQ9DHD — 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: JO90

Receiver-side FT8 activity involving SQ9DHD, decoded by SO8OO in southeastern Poland. 100 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, across 4 UTC dates in the available aggregate history. Observed between 2026-07-19 and 2026-10-20.

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 100 FT8 messages attributed to SQ9DHD as the transmitting token by decoded message structure across 4 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (72%), followed by 60 m (22%) and 80 m (6%). Most decodes (77%) fell within the six-hour window 11:00-17:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -13 dB.

Overview

100

Messages attributed

UTC dates decoded

Active 15-min windows

-13 dB

Estimated median S/N

Bands

80m · 6 60m · 22 40m · 72

First attributed message: 2026-07-19
Last attributed message: 2026-10-20 17:38 UTC

Observed FT8 message patterns

Attributed sample: 100 messages
Active dates: 4 UTC dates
Estimated median S/N: -13 dB
Estimated 10th-90th percentile: -18 to -5 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 23, moderate (-15 to -9 dB) 57, strong (≥ -8 dB) 20.

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 SQ9DHD in decoded directed-looking exchanges:

IK4LZH · Italy IZ3BUR · Italy LZ1ZF · Bulgaria DH5BM · Fed. Rep. of Germany EA7HTE · Spain EB3JT · Spain F6CAM · France PA3GHJ · Netherlands UT7UJ · Ukraine DH1NGL · Fed. Rep. of Germany DL1EDR · Fed. Rep. of Germany DL4NWM · Fed. Rep. of Germany

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 SQ9DHD

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: JO90 · 59 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 208 km (approx.)
Last such locator decoded: 2026-10-20 17:28 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	SQ9DHD S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-20 17:43	40m	- / -4	EX7CQ	+2 / -	3	✓ Closing fragment
10-20 17:37	60m	-15 / +1	DK7ZT	-4 / -	3	✓ Closing observed
10-20 17:36	60m	-15 / -6	OE5DML	-12 / -	4	✓ Closing observed
10-20 17:34	60m	-14 / +2	SP2EWQ	+2 / -	4	✓ Full exchange observed
10-20 17:31	60m	- / -	SP2EWQ	+6 / -	3	Partial capture
10-20 17:31	60m	- / -	9A4ZM	+8 / -	2	Partial capture
10-20 17:31	60m	- / -	DF4WQ	-12 / -	6	Partial capture
10-20 17:30	60m	- / -8	YO4BEW	-14 / -	5	✓ Closing fragment
10-20 17:29	60m	- / -4	ON7GB	+1 / -	3	Partial capture
10-20 17:14	40m	- / -	SQ6MIZ	-11 / -	2	Partial capture
10-20 17:13	40m	- / -	SP2KW	-2 / -	3	Partial capture
10-20 17:11	40m	- / -14	IQ4JO	-1 / -	3	✓ Closing fragment
10-20 17:11	40m	- / -21	UA4FEN	-8 / -	2	Partial capture
10-10 11:26	40m	- / -24	DL4NWM	-20 / -	6	✓ Closing fragment
10-10 11:14	40m	-15 / -	S51PV	-13 / +6	2	✓ Closing observed
10-10 11:13	40m	- / -	DL9KM	-9 / -	6	Partial capture
10-10 11:06	40m	- / -3	UX7QV	+5 / -	3	✓ Closing fragment
10-10 10:58	40m	-14 / -	OH3MB	-19 / +7	3	✓ Closing observed
10-10 10:49	40m	- / +2	HF5W	-6 / -	2	✓ Closing fragment
10-10 10:39	40m	-19 / +6	DH1NGL	-16 / -	5	✓ Closing observed
10-10 10:37	40m	-17 / -15	IU2THY	-4 / +7	4	✓ Full exchange observed
10-10 09:26	40m	- / -7	S53AK	-10 / -	2	✓ Closing fragment
10-10 09:23	40m	-18 / +5	SQ6WA	-12 / +10	4	✓ Full exchange observed
08-30 16:52	80m	-5 / -8	OK1UOZ	+17 / -	5	✓ Full exchange observed
08-30 16:47	60m	-14 / -13	DD6ZV	-6 / +10	6	✓ Full exchange observed
08-30 16:40	60m	-12 / +2	SP9UPH	+7 / -	5	✓ Full exchange observed
08-30 16:25	20m	- / -12	DL3EBJ	-1 / -	3	Partial capture
08-30 15:28	40m	-13 / -12	RA2FGK	-12 / -	4	✓ Full exchange observed
08-30 15:24	40m	-13 / -	DG1KFR	- / +6	3	Partial capture
08-30 15:23	40m	-13 / -	PA2RO	-12 / +5	6	Partial capture
08-30 15:18	40m	-12 / +6	DM2BM	+1 / +3	5	✓ Full exchange observed
08-30 14:38	40m	- / -	OZ1SMB	-2 / -	2	Partial capture
08-30 14:34	40m	-7 / -	SP5RFL	- / +4	2	✓ Closing fragment
08-30 14:32	40m	-4 / +3	DL1EDR	+1 / +4	5	✓ Full exchange observed
08-30 14:30	40m	-4 / -	M9ORB	- / -	2	Partial capture
08-30 14:27	40m	- / +3	SQ9SZ	-15 / -	3	✓ Closing fragment
08-30 14:25	40m	- / -11	DL8RO	-2 / -	3	✓ Closing fragment
08-30 10:35	20m	- / -19	PA3GHJ	+12 / -	2	✓ Closing fragment
08-30 10:34	20m	- / -	G8IXM	-4 / -	3	Partial capture
08-30 10:32	20m	- / -25	EA7HTE	-8 / -	4	✓ Closing fragment
08-30 10:31	20m	- / -8	UT7UJ	+4 / -	2	✓ Closing fragment
08-30 10:28	20m	- / -13	F6CAM	+15 / -	3	✓ Closing fragment
08-30 09:59	20m	- / -	2E0BRU	-13 / -	3	Partial capture
08-16 14:09	40m	- / -15	S55OO	-7 / -	4	✓ Closing fragment
08-16 09:24	20m	- / -	DH5BM	-12 / -	2	✓ Closing fragment
08-16 09:15	20m	- / -	DL1R	-4 / -	9	Partial capture
08-16 09:11	20m	- / -7	F1PBZ	+4 / -	3	Partial capture
08-16 08:53	40m	- / +3	SP9XG	-9 / -	3	✓ Closing fragment
08-16 08:50	40m	- / +2	SP9BEB	-3 / -	3	✓ Closing fragment
08-16 08:48	40m	- / -	SQ9LOJ	+1 / -	3	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
112830 -14 2230  SQ9DHD DL4NWM 73
171145  -7 2229  SQ9DHD UA4FEN -21
171145  -2 1970  SQ9DHD IQ4JO JN63
171215  -8 2229  SQ9DHD UA4FEN -21
171215  -4 1970  SQ9DHD IQ4JO R-14 (x2)
171330  -2 2230  SQ9DHD SP2KW JO92 (x2)
171415 -11 2230  SQ9DHD SQ6MIZ KO02
171430  -2 2230  SQ9DHD SP2KW JO92
171445 -11 2230  SQ9DHD SQ6MIZ KO02
174100 -13 1772  SQ9DHD RZ4FWA LO23
174330  +3  496  SQ9DHD EX7CQ -04 (x3)

60m

UTC    dB Audio  Message
173230  +5 2588  SQ9DHD SP2EWQ JO93
173230 -12 1920  SQ9DHD DF4WQ JN39 (x3)
173445 -11 2492  SP2EWQ SQ9DHD +11
173600  +5 2492  SQ9DHD SP2EWQ R+02
173615 -16 2492  SP2EWQ SQ9DHD RR73
173630  +0 2492  SQ9DHD SP2EWQ 73
173630 -10 2387  SQ9DHD OE5DML JN78 (x2)
173715 -15 2492  OE5DML SQ9DHD RR73
173730 -16 2387  SQ9DHD OE5DML 73
173730  -5 2483  SQ9DHD DK7ZT +01 (x2)
173815 -15 2492  DK7ZT SQ9DHD 73

80m

UTC    dB Audio  Message
165015  -9 1993  CQ POTA SQ9DHD JO90 (x4)
165230 +20 2807  SQ9DHD OK1UOZ JO70
165245  -4 1994  OK1UOZ SQ9DHD +12
165300 +16 2808  SQ9DHD OK1UOZ R-08
165315  -6 1994  OK1UOZ SQ9DHD RR73
165330 +16 2807  SQ9DHD OK1UOZ 73

20m

UTC    dB Audio  Message
103215  +3 2677  SQ9DHD UT7UJ RR73
103245  -8 2702  SQ9DHD EA7HTE IM66 (x4)
103445  +0  780  SQ9DHD G8IXM JO02 (x2)
103530 +12 2670  SQ9DHD PA3GHJ -19
103545  -3  780  SQ9DHD G8IXM JO02
103600 +12 2670  SQ9DHD PA3GHJ RR73
104030 -14 2816  SQ9DHD IK0SME R-22
160415  +9 2357  SQ9DHD RY7G LN14
162500  -4 1672  SQ9DHD DL3EBJ -12 (x3)

10m

UTC    dB Audio  Message
175045  -8 1436  SQ9DHD LZ1ZF -10 (x2)
175315 -11  489  SQ9DHD IK4LZH RR73
175445  +8 2259  SQ9DHD IZ3BUR -10 (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.

CW

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

Explore CW reception at SO8OO

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