DH1DA — 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: JN48

Receiver-side FT8 activity involving DH1DA, decoded by SO8OO in southeastern Poland. 79 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, across 7 UTC dates in the available aggregate history. Observed between 2026-07-20 and 2026-10-24.

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 79 FT8 messages attributed to DH1DA as the transmitting token by decoded message structure across 7 UTC dates in the available aggregate history. The largest monitored-band total was 60 m (53%), followed by 80 m (22%) and 40 m (20%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -16 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-16 dB

Estimated median S/N

Bands

80m · 17 60m · 42 40m · 16 20m · 4

First attributed message: 2026-07-20
Last attributed message: 2026-10-24 19:58 UTC

Observed FT8 message patterns

Attributed sample: 79 messages
Active dates: 7 UTC dates
Estimated median S/N: -16 dB
Estimated 10th-90th percentile: -19 to -7 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 41, moderate (-15 to -9 dB) 25, strong (≥ -8 dB) 13.

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 DH1DA in decoded directed-looking exchanges:

SQ1RTU · Poland ×2 IQ4JO · Italy LA2GCA · Norway ON5ACO · Belgium PD2MAC/P · Netherlands UR5XEJ · Ukraine YT2FA · Serbia DL5DQZ · Fed. Rep. of Germany E79D · Bosnia-Herzegovina ER3UA · Moldova EW6BZ · Belarus F5MYK · France

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 DH1DA

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: JN48 · 28 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 941 km (approx.)
Last such locator decoded: 2026-10-24 19:56 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	DH1DA S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-24 19:57	60m	-20 / -18	YO9IE	-12 / -8	4	Partial capture
10-24 19:56	60m	-19 / -15	EW6BZ	-10 / -5	5	✓ Full exchange observed
10-24 19:53	60m	- / -16	LZ2VQ	-1 / -	3	✓ Closing fragment
10-24 19:48	80m	-12 / -18	YT1VDA	-9 / -21	6	✓ Full exchange observed
10-24 19:46	80m	-11 / -12	SQ1RTU	-5 / 0	9	✓ Full exchange observed
10-24 19:45	80m	-13 / -	M8LOD	- / -12	3	✓ Closing fragment
10-24 19:39	40m	-14 / -12	LA2GCA	-10 / -1	5	✓ Full exchange observed
10-18 19:25	80m	- / -9	ON6OM	-7 / -	2	✓ Closing fragment
10-18 19:21	80m	-6 / +3	F4EWK	-4 / -	5	✓ Full exchange observed
10-18 19:20	80m	-4 / +10	DC7PM	+1 / -	3	✓ Closing observed
10-18 18:11	80m	-18 / +1	ON5MX	-8 / -1	4	✓ Full exchange observed
09-16 18:36	60m	-19 / -12	ER3UA	+5 / -1	5	✓ Full exchange observed
09-16 18:30	60m	-15 / -	C31CT	- / -	7	Partial capture
09-16 18:28	60m	-17 / -14	E79D	+8 / -	4	✓ Closing observed
09-15 19:21	60m	-17 / -2	OM5JG	+2 / -	5	✓ Full exchange observed
09-15 19:19	60m	-17 / -1	F5MYK	-16 / +1	5	✓ Full exchange observed
09-15 19:15	60m	-15 / -1	DL5DQZ	-1 / -	8	✓ Full exchange observed
09-15 19:14	60m	-13 / -	F5OZC	-4 / -	4	✓ Closing observed
09-15 19:14	60m	- / +7	IK4CBO	-8 / -	6	✓ Closing fragment
09-15 19:11	60m	-19 / -	GE3TXA	- / -1	3	✓ Closing fragment
09-15 19:09	60m	-16 / -6	G3UHU	-10 / +5	5	✓ Full exchange observed
09-15 19:06	60m	-16 / -10	SQ8AA	-10 / +9	12	✓ Full exchange observed
09-15 18:21	40m	-4 / -	UR5XEJ	- / -13	3	✓ Closing fragment
09-15 18:19	40m	-8 / +2	ON5ACO	-7 / +2	4	✓ Full exchange observed
09-15 18:17	40m	-10 / -	PD2MAC/P	-11 / -10	3	✓ Closing observed
09-15 18:17	40m	- / -4	IQ4JO	-15 / -	2	✓ Closing fragment
09-15 18:16	40m	- / -	UA4FKT	0 / -	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

60m

UTC    dB Audio  Message
183730  +6 2689  DH1DA ER3UA RR73
183745 -20 1645  ER3UA DH1DA 73
195200 -17 2014  TF1EIN DH1DA JN48
195345  +1 2014  DH1DA LZ2VQ KN23 (x3)
195600 -18 1873  EW6BZ DH1DA JN48
195615 -11 2169  DH1DA EW6BZ -15
195630 -17 1873  EW6BZ DH1DA R-05
195645  -8 2169  DH1DA EW6BZ RR73
195700 -21 1873  EW6BZ DH1DA 73
195715 -13 1659  DH1DA YO9IE -18 (x2)
195800 -22 1873  YO9IE DH1DA R-08 (x2)

80m

UTC    dB Audio  Message
194615  -8 2097  DH1DA SQ1RTU JO73 (x2)
194700  -9 1816  SQ1RTU DH1DA +00
194715  -5 2097  DH1DA SQ1RTU R-12
194730  -8 1816  SQ1RTU DH1DA RR73
194745  -5 2097  DH1DA SQ1RTU R-12
194800 -14 1816  YT1VDA DH1DA JN48
194815  -5 1606  DH1DA YT1VDA -18
194815  -2 2097  DH1DA SQ1RTU R-12
194845 -12 1606  DH1DA YT1VDA -18
194845  -4 2097  DH1DA SQ1RTU R-12
194900  -9 1816  YT1VDA DH1DA R-21
194915  -9 1605  DH1DA YT1VDA RR73
194930 -13 1816  YT1VDA DH1DA 73
195000 -16 1816  SQ1RTU DH1DA RR73

40m

UTC    dB Audio  Message
181945  -6  782  DH1DA ON5ACO +02
181945 -13 2062  DH1DA DL1YFS JO41
182000  -9 1787  ON5ACO DH1DA R+02
182015  -8  781  DH1DA ON5ACO RR73
182030  -7 1788  ON5ACO DH1DA 73
182100  -7 1787  UR5XEJ DH1DA -13 (x3)
203215 -17 1318  YT2FA DH1DA 73
203345 -24 1318  II6IGTO DH1DA R+01
193945  -9 1932  LA2GCA DH1DA JN48
194000  -9 1608  DH1DA LA2GCA -12
194015 -16 1932  LA2GCA DH1DA R-01
194030 -11 1608  DH1DA LA2GCA RR73
194045 -18 1932  LA2GCA DH1DA 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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