DH5IS — 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: Fed. Rep. of Germany Most frequent locator attributed to this token: JN49

Receiver-side FT8 activity involving DH5IS, decoded by SO8OO in southeastern Poland. 507 FT8 messages attributed to this token as transmitter, on 80m, 40m, across 12 UTC dates in the available aggregate history. Observed between 2026-10-06 and 2026-10-21.

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 507 FT8 messages attributed to DH5IS as the transmitting token by decoded message structure across 12 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (87%), followed by 80 m (13%). Most decodes (56%) fell within the six-hour window 13:00-19:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -10 dB.

Overview

507

Messages attributed

UTC dates decoded

Active 15-min windows

-10 dB

Estimated median S/N

Bands

80m · 68 40m · 439

First attributed message: 2026-10-06
Last attributed message: 2026-10-21 06:07 UTC

Observed FT8 message patterns

Attributed sample: 507 messages
Active dates: 12 UTC dates
Estimated median S/N: -10 dB
Estimated 10th-90th percentile: -19 to -1 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 125, moderate (-15 to -9 dB) 164, strong (≥ -8 dB) 218.

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 DH5IS in decoded directed-looking exchanges:

DL7DF · Fed. Rep. of Germany ×4 9A7BB · Croatia ×3 HA3JO · Hungary ×2 LZ3QC · Bulgaria ×2 IU3WIX · Italy ×2 2E0CVN · England 2E0MCP · England 2E0TSS · England 3Z0L · Poland 9A3AUH · Croatia 9A4ZM · Croatia 9H1SR · Malta

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 DH5IS

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: JN49 · 350 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 920 km (approx.)
Last such locator decoded: 2026-10-21 06:07 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	DH5IS S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-21 12:47	40m	- / -16	DA3W	-22 / -	4	Partial capture
10-21 12:46	40m	- / -20	OE9GWV	-15 / -	7	✓ Closing fragment
10-21 12:41	40m	- / -	F6ARS	-10 / -	2	✓ Closing fragment
10-21 12:39	40m	- / -15	OM2IB	-2 / -	2	✓ Closing fragment
10-21 12:12	40m	- / +2	DA125RH	+7 / -	2	Partial capture
10-21 11:49	40m	- / -11	DL2YBG	-15 / -	6	Partial capture
10-21 11:43	40m	- / -11	IQ4JHE	-20 / -	2	✓ Closing fragment
10-21 11:41	40m	- / -20	DF2JK	-12 / -	2	Partial capture
10-21 06:00	40m	-11 / -16	F5PBG	0 / -	6	✓ Full exchange observed
10-21 05:56	40m	-8 / -8	IK4JPP	-2 / -6	3	✓ Full exchange observed
10-20 18:41	40m	+2 / -5	EX7CQ	+1 / +4	7	✓ Full exchange observed
10-20 18:36	40m	-6 / -	ON6OM	+2 / -	3	✓ Closing observed
10-20 11:33	40m	- / -1	DL4MFC	-15 / -	2	✓ Closing fragment
10-20 11:26	40m	- / -8	PD0IFI	-1 / -	3	✓ Closing fragment
10-20 11:23	40m	- / +4	DK2SW	-13 / -	3	✓ Closing fragment
10-20 11:19	40m	- / -4	S55OO	0 / -	2	✓ Closing fragment
10-20 11:16	40m	- / -7	HB9CEX	-5 / -	5	✓ Closing fragment
10-20 11:12	40m	- / -	S53AK	-6 / -	2	Partial capture
10-20 11:10	40m	- / -	DL6REX	-21 / -	2	✓ Closing fragment
10-20 11:07	40m	- / 0	DL0HAM	-6 / -	5	✓ Closing fragment
10-20 10:57	40m	- / -13	DJ8DI	-19 / -	6	Partial capture
10-20 10:51	40m	- / -8	DL2USR	-4 / -	2	✓ Closing fragment
10-20 09:41	40m	- / +3	DF7NO	-13 / -	6	Partial capture
10-20 09:22	40m	- / +6	OK1MDK	-6 / -	2	✓ Closing fragment
10-20 09:18	40m	- / -11	SP4VIT	-12 / -	2	✓ Closing fragment
10-18 19:08	40m	-15 / -	M9PXZ	- / -	3	Partial capture
10-18 18:57	40m	- / +4	2E0MCP	-6 / -	2	✓ Closing fragment
10-18 07:07	40m	-17 / -20	F5PJG	-15 / +6	6	✓ Full exchange observed
10-18 07:02	40m	- / -15	SP2IHI	-10 / -	2	Partial capture
10-18 06:54	40m	- / -4	M9MRX	-12 / -	2	Partial capture
10-18 06:46	40m	- / -4	IK2YYO	-12 / -	2	✓ Closing fragment
10-18 06:31	40m	- / -14	SP2JEL	+2 / -	2	✓ Closing fragment
10-18 06:02	40m	- / -11	G0BLB	-2 / -	3	✓ Closing fragment
10-18 05:56	40m	- / -	HG8LXL	+3 / -	4	Partial capture
10-18 05:54	40m	- / -	PC2J	-6 / -	5	Partial capture
10-17 17:46	40m	-16 / -9	SQ1EG	-12 / -15	5	✓ Full exchange observed
10-17 17:42	40m	+4 / -7	DH0GBC	+6 / +10	4	✓ Full exchange observed
10-17 17:37	40m	+1 / -1	OH3MB	+6 / -1	7	✓ Full exchange observed
10-17 17:35	40m	- / -	R2PX	+3 / -	2	Partial capture
10-17 17:33	40m	-1 / +4	OZ5AGJ	-10 / -	3	✓ Closing observed
10-17 17:30	40m	0 / -12	OE6TNO	+5 / -4	8	✓ Full exchange observed
10-17 17:12	40m	- / -20	ON3BAJ	-11 / -	3	Partial capture
10-17 17:06	40m	-7 / -15	F1POK	-8 / +7	8	Partial capture
10-17 17:03	40m	-17 / -	OR1A	- / +1	3	Partial capture
10-17 17:01	40m	-7 / -7	S59SV	+12 / +1	5	✓ Full exchange observed
10-17 16:52	40m	-10 / -	M8GSY	- / -	2	Partial capture
10-17 16:50	40m	-16 / +4	DB4VI	-6 / -	3	✓ Closing observed
10-17 16:48	40m	- / +3	PA5VEN	-8 / -	3	✓ Closing fragment
10-17 15:56	40m	-14 / -10	I8OHQ	-11 / -6	5	✓ Full exchange observed
10-17 15:42	40m	- / -8	F4JTP	-6 / -	2	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
123915  -5 1683  DH5IS OM2IB -15 (x2)
124145  -8  638  DH5IS F6ARS JN38 (x2)
124645 -15 1997  DH5IS OE9GWV JN47 (x2)
124715 -23 1841  DH5IS DA3W JO52
124745 -14 1997  DH5IS OE9GWV R-20 (x3)
124845 -21 1842  DH5IS DA3W R-16
124915 -13 1998  DH5IS OE9GWV R-20
124915 -21 1842  DH5IS DA3W R-16
124945 -17 1997  DH5IS OE9GWV 73
124945 -22 1841  DH5IS DA3W R-16

60m

UTC    dB Audio  Message
221730  +3 2281  DH5IS PI4TX JO22 (x3)
110045 -21 1638  DH5IS DJ8DI -13

80m

UTC    dB Audio  Message
025500  +6 1504  DH5IS OK1UOZ JO70
025500  -3 2402  DH5IS DO9BAU JO62
025530  +3 1504  DH5IS OK1UOZ JO70
025530  -8 2402  DH5IS DO9BAU JO62
025600  -1 1504  DH5IS OK1UOZ JO70
025600  -5 2402  DH5IS DO9BAU JO62
025630  +1 1504  DH5IS OK1UOZ JO70
025630  -5 2402  DH5IS DO9BAU JO62 (x8)

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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