DH1AA — 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: JO30

Receiver-side FT8 activity involving DH1AA, decoded by SO8OO in southeastern Poland. 127 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 8 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-10-31.

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 127 FT8 messages attributed to DH1AA as the transmitting token by decoded message structure across 8 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (76%), followed by 20 m (17%) and 80 m (8%). Most decodes (94%) fell within the six-hour window 14:00-20:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -14 dB.

Overview

127

Messages attributed

UTC dates decoded

Active 15-min windows

-14 dB

Estimated median S/N

Bands

80m · 10 40m · 96 20m · 21

First attributed message: 2026-06-07
Last attributed message: 2026-10-31 18:47 UTC

Observed FT8 message patterns

Attributed sample: 127 messages
Active dates: 8 UTC dates
Estimated median S/N: -14 dB
Estimated 10th-90th percentile: -21 to -3 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 51, moderate (-15 to -9 dB) 44, strong (≥ -8 dB) 32.

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 DH1AA in decoded directed-looking exchanges:

OE9HGV · Austria OH2MWH · Finland ON1DGN · Belgium PA5VEN · Netherlands DL6UM · Fed. Rep. of Germany F4GCB/P · France IK1AIL · Italy IQ4JO · Italy

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 DH1AA

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: JO30 · 88 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,053 km (approx.)
Last such locator decoded: 2026-10-31 18:47 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	DH1AA S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-31 18:45	80m	-11 / -	F4GCB/P	- / -14	3	✓ Closing fragment
10-31 18:42	80m	- / -9	IK1AIL	-14 / -	4	✓ Closing fragment
10-31 18:36	80m	-12 / -	EA4IPN	- / -	2	Partial capture
10-31 18:33	80m	- / -	DK0RMR	+3 / -	2	Partial capture
10-31 18:33	80m	- / -	DK2BK	-5 / -	3	Partial capture
10-31 18:33	80m	- / -	DO9SAM	+10 / -	4	Partial capture
10-31 18:33	80m	- / -	OE5TXF	+20 / -	4	Partial capture
10-31 18:24	80m	-10 / -	GW0PZZ	- / -12	2	Partial capture
10-31 18:22	80m	- / -13	DL6UM	+6 / -	3	✓ Closing fragment
10-31 18:19	80m	- / -15	IQ4JO	+3 / -	3	✓ Closing fragment
10-31 16:41	40m	- / -	DL9KM	-3 / -	4	Partial capture
10-31 16:40	40m	-13 / -	OH2MWH	-17 / -8	2	✓ Closing observed
10-31 16:37	40m	-14 / -11	OE9HGV	+4 / -4	4	✓ Full exchange observed
10-31 16:24	40m	-16 / -	SQ9LFQ	- / -16	3	Partial capture
10-31 16:18	40m	-6 / -	OH3SW	- / -	7	Partial capture
10-31 16:13	40m	-9 / -8	ON1DGN	-16 / +4	3	✓ Full exchange observed
10-31 16:09	40m	-15 / -	MW7IDN	- / -	3	Partial capture
10-31 16:00	40m	-8 / -	YU1NR	- / -	2	Partial capture
10-31 15:54	40m	-9 / -	YU1NR	- / -	4	Partial capture

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
183415  -6 1282  DH1AA DK2BK JN49
183445 +15 1741  DH1AA OE5TXF JN78
183445  +8 1009  DH1AA DO9SAM JO61 (x2)
183630 -15 1142  EA4IPN DH1AA JO30 (x2)
183930 -11 1143  G8TKY DH1AA -07
184245 -12  952  DH1AA IK1AIL JN45 (x4)
184500 -10 1690  F4GCB/P DH1AA JO30 (x3)
184700  -6  847  YO7CFD DH1AA JO30

40m

UTC    dB Audio  Message
162530 -15 1923  SQ9LFQ DH1AA R-16 (x2)
163045 -17 1923  CQ DH1AA JO30 (x2)
163715 -17 2309  OE9HGV DH1AA JO30
163730  +5 2450  DH1AA OE9HGV -11
163745 -12 2309  OE9HGV DH1AA R-04
163800  +4 2450  DH1AA OE9HGV RR73
163945 -14 1730  PA5VEN DH1AA 73
164045 -13  239  OH2MWH DH1AA R-08
164100 -17  233  DH1AA OH2MWH RR73
164130  -2 1612  DH1AA DL9KM JN68 (x4)

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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