DH2BUM — 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: JO72

Receiver-side FT8 activity involving DH2BUM, decoded by SO8OO in southeastern Poland. 68 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, across 2 UTC dates in the available aggregate history. Observed between 2026-10-28 and 2026-11-02.

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 68 FT8 messages attributed to DH2BUM as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (38%), followed by 60 m (34%) and 40 m (28%). In this small sample, the estimated median decoder S/N was -13 dB; no usual signal pattern is inferred.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-13 dB

Estimated median S/N

Bands

80m · 26 60m · 23 40m · 19

First attributed message: 2026-10-28
Last attributed message: 2026-11-02 13:49 UTC

Observed FT8 message patterns

Attributed sample: 68 messages
Active dates: 2 UTC dates
Estimated median S/N: -13 dB
Estimated 10th-90th percentile: -20 to +4 dB
Recurring-pattern threshold: Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 21, moderate (-15 to -9 dB) 22, strong (≥ -8 dB) 25.

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. The sample does not meet the threshold for a recurring time or signal-pattern claim (20 attributed messages, three UTC dates and five distinct 15-minute windows).

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with DH2BUM in decoded directed-looking exchanges:

DA0M · Fed. Rep. of Germany DF6JF · Fed. Rep. of Germany DK8VD · Fed. Rep. of Germany DL7DL · Fed. Rep. of Germany EX7CQ · Kyrgyzstan F3CJ · France G0RVY · England GJ0KYZ · Jersey HA7TM · Hungary PD4SN · Netherlands DH6DAO · Fed. Rep. of Germany DL1KSW · Fed. Rep. of Germany

Most frequent locator attributed to DH2BUM

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: JO72 · 20 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 552 km (approx.)
Last such locator decoded: 2026-11-02 13:48 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	DH2BUM S/N	Counterpart	Counterpart S/N	Msgs	Capture
11-02 13:48	40m	-12 / -	PD4SN	-15 / 0	4	✓ Closing observed
11-02 13:47	40m	-8 / -	DL7DL	- / -10	2	✓ Closing fragment
11-02 13:44	40m	- / -	PE1NPS	-9 / -	3	Partial capture
11-02 13:42	40m	- / +3	F1PBZ	-6 / -	3	Partial capture
11-02 13:42	40m	-12 / -1	GJ0KYZ	-18 / -14	4	✓ Full exchange observed
10-28 18:49	80m	+5 / -	YT2ZE	- / -11	4	✓ Closing fragment
10-28 18:48	80m	0 / -	M9DNC	- / -13	2	✓ Closing fragment
10-28 18:25	80m	-4 / -	DL5SBY	- / -4	2	✓ Closing fragment
10-28 18:22	80m	0 / -8	DL8TV	+3 / -	6	✓ Closing observed
10-28 18:21	80m	+2 / -12	SP9UPH	+16 / +1	5	✓ Full exchange observed
10-28 18:18	80m	0 / -2	SP8HDC	-12 / -	3	✓ Closing observed
10-28 18:15	80m	-4 / -18	OE5ABL	0 / -8	9	✓ Full exchange observed
10-28 18:12	80m	-14 / -	YO1BRANCUSI	- / -13	2	Partial capture
10-28 17:36	60m	-16 / -	S56P	- / -1	2	✓ Closing fragment
10-28 17:34	60m	-18 / -2	IK1WGX	-7 / -	4	✓ Closing observed
10-28 17:33	60m	-21 / -10	HF5A	-2 / -1	5	✓ Full exchange observed
10-28 17:30	60m	-15 / -	DL1KSW	-22 / +1	3	✓ Closing observed
10-28 17:29	60m	-14 / -	DH6DAO	- / -4	2	✓ Closing fragment
10-28 17:26	60m	-19 / 0	IK0BAL	-11 / -	6	✓ Closing observed
10-28 17:25	60m	- / -	OE8PIT	+1 / -	4	Partial capture
10-28 17:24	60m	-14 / +3	SP2EWQ	-12 / +1	5	✓ Full exchange observed
10-28 16:25	40m	-12 / -	OM2IB	- / -22	3	Partial capture
10-28 16:19	40m	-18 / -9	F3CJ	-13 / -23	4	✓ Full exchange observed
10-28 16:17	40m	-14 / +10	DK8VD	-14 / -	4	✓ Closing observed
10-28 16:16	40m	-19 / -	DF6JF	- / -17	2	✓ Closing fragment
10-28 16:14	40m	- / -16	RC9WC	-4 / -	3	Partial capture
10-28 16:13	40m	- / -	EX7CQ	-15 / -	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
134300 -17 1823  DH2BUM GJ0KYZ RR73
134300  -6  639  DH2BUM F1PBZ +03
134315 -10 1823  GJ0KYZ DH2BUM 73
134330  -5  639  DH2BUM F1PBZ +03
134415 -14 1823  DA0M DH2BUM RR73
134430 -11 2487  DH2BUM PE1NPS JO22 (x3)
134545  -5 1823  G0RVY DH2BUM RR73
134715  -8 1824  DL7DL DH2BUM -10 (x2)
134845 -10 1823  PD4SN DH2BUM JO72 (x2)
134930 -15 1143  DH2BUM PD4SN RR73
134945 -16 1823  PD4SN DH2BUM 73

80m

UTC    dB Audio  Message
182245  +1 1789  SQ8LSB DH2BUM RR73
182300  +4 2074  DH2BUM DL8TV JN49 (x2)
182345  +0 1789  DL8TV DH2BUM RR73
182400  +8 2074  DH2BUM DL8TV 73
182515  -2 1789  DL5SBY DH2BUM -04 (x2)
182615  -7 1788  CQ DH2BUM JO72
182715  +7 1789  DB2GM DH2BUM RR73
184830  +0 1789  M9DNC DH2BUM R-13 (x2)
184930  +5 1789  YT2ZE DH2BUM JO72 (x4)

60m

UTC    dB Audio  Message
173245 -23 1819  CQ DH2BUM JO72
173300  +1 2387  DH2BUM HF5A JO92
173315 -18 1819  HF5A DH2BUM -01
173330  -7 2387  DH2BUM HF5A R-10
173345 -24 1819  HF5A DH2BUM RR73
173400  -1 2387  DH2BUM HF5A 73
173415 -21 1819  CQ DH2BUM JO72
173430  -9  629  DH2BUM IK1WGX JN44 (x2)
173515 -18 1819  IK1WGX DH2BUM RR73
173530  -6  629  DH2BUM IK1WGX 73
173545 -22 1819  CQ DH2BUM JO72
173615 -17 1819  S56P DH2BUM -01 (x2)
173715 -18 1819  CQ DH2BUM JO72

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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