DH8FB — 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: JO52

Receiver-side FT8 activity involving DH8FB, decoded by SO8OO in southeastern Poland. 87 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 7 UTC dates in the available aggregate history. Observed between 2026-07-26 and 2026-10-03.

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 87 FT8 messages attributed to DH8FB as the transmitting token by decoded message structure across 7 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (45%), followed by 40 m (41%) and 20 m (14%). Several six-hour UTC windows tied for the largest share (54%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -9 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-9 dB

Estimated median S/N

Bands

80m · 39 40m · 36 20m · 12

First attributed message: 2026-07-26
Last attributed message: 2026-10-03 03:28 UTC

Observed FT8 message patterns

Attributed sample: 87 messages
Active dates: 7 UTC dates
Estimated median S/N: -9 dB
Estimated 10th-90th percentile: -20 to +1 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 23, moderate (-15 to -9 dB) 22, strong (≥ -8 dB) 42.

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 DH8FB in decoded directed-looking exchanges:

E70SZ · Bosnia-Herzegovina PF1B · Netherlands RL2F · Kaliningrad UA3VVA · European Russia DA0LH · Fed. Rep. of Germany DD0AM · Fed. Rep. of Germany F6FHZ · France OZ7CL · Denmark TN8GD · Republic of the Congo DA6WM/P · Fed. Rep. of Germany DD4U · Fed. Rep. of Germany DD7EE · 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 DH8FB

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: JO52 · 38 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 803 km (approx.)
Last such locator decoded: 2026-10-03 03:24 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	DH8FB S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-03 03:25	80m	- / -	UA4FKT	+5 / -	3	Partial capture
10-03 03:24	80m	-3 / +9	DD4U	+6 / -	5	✓ Full exchange observed
08-30 16:16	80m	-18 / +2	DO7RMA	-9 / -	4	✓ Full exchange observed
08-30 16:13	80m	-22 / -20	LY3BRA	+2 / -	4	✓ Closing observed
08-30 16:12	40m	- / -	DL0HAM	+6 / -	10	Partial capture
08-30 16:08	40m	-8 / -	OZ7CL	-22 / +10	4	✓ Closing observed
08-30 16:05	40m	-3 / -	DD0AM	- / +5	3	✓ Closing fragment
08-30 16:00	40m	-4 / -	F6FHZ	- / -6	2	✓ Closing fragment
08-30 15:59	40m	-9 / +4	F5MXH	-17 / +1	3	Partial capture
08-29 19:17	80m	-2 / -	DA6WM/P	- / -15	3	✓ Closing fragment
08-29 19:14	80m	-6 / -3	F5HNQ	-13 / -5	7	✓ Full exchange observed
08-29 19:09	80m	-2 / -4	DA6WM/P	-14 / -12	4	✓ Full exchange observed
08-16 17:00	40m	-20 / -	DL0MFX	- / +8	2	Partial capture
08-16 16:43	40m	-19 / -12	DA0LH	-18 / -	4	✓ Closing observed
08-16 16:29	20m	-12 / -13	E70SZ	-2 / -9	6	✓ Full exchange observed
08-16 16:29	20m	-11 / -8	UA3VVA	-12 / +8	9	✓ Full exchange observed
08-16 16:21	20m	-18 / -	RL2F	- / +9	3	✓ Closing fragment
08-15 22:54	40m	-8 / -	OA4ENG	- / -	3	Partial capture
08-15 22:43	40m	-10 / -	VJ6X	- / -	4	Partial capture
08-15 22:34	40m	-10 / -	TN8GD	- / -15	3	✓ Closing fragment
08-15 22:19	80m	+2 / -	DO8JB	-10 / +4	22	Partial capture
08-15 22:18	80m	-4 / -6	LZ2VQ	0 / -2	5	✓ Full exchange observed
08-15 22:15	80m	-5 / -	UA4FKT	+5 / +2	2	Partial capture
08-15 22:14	80m	+4 / -3	DD7EE	+1 / -	4	✓ Closing observed
08-15 22:14	80m	-3 / +3	DL1EDR	+6 / -	7	✓ Full exchange observed
08-15 18:34	40m	-19 / -6	IU2HUQ	-17 / -	2	Partial capture
08-15 18:22	80m	-12 / -	DK0RPO	-21 / -5	4	✓ Closing observed
08-15 18:14	80m	-18 / -3	DL0YLM/LH	-18 / +5	3	Partial capture

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
161530  +1 1804  DH8FB LY3BRA RR73
161645 -11 1368  DH8FB DO7RMA +02
161700 -17 1367  DO7RMA DH8FB R+14
161715  -7 1368  DH8FB DO7RMA RR73
161730 -19 1368  DO7RMA DH8FB 73
032415  -5 2453  DD4U DH8FB JO52
032430 +11 2452  DH8FB DD4U +09
032445  +1 2453  DD4U DH8FB R+15
032500  +2 2452  DH8FB DD4U RR73
032515  -4 2453  DD4U DH8FB 73
032530  +2 2454  DH8FB UA4FKT LO23
032530  -4 1315  DH8FB R3ICU KO66
032600  +6 2453  DH8FB UA4FKT LO23 (x2)
032845  +1 2454  UA4FKT DH8FB +02

40m

UTC    dB Audio  Message
160915 -11 1533  R7LC DH8FB JO52
160945 -11 1533  OZ7CL DH8FB R+10
161000 -22 1535  DH8FB OZ7CL RR73
161015  -7 1533  OZ7CL DH8FB 73
161200  +6 1873  DH8FB DL0HAM +19 (x10)
032030 -16 1180  HK3W DH8FB JO52

20m

UTC    dB Audio  Message
162915  -3  714  DH8FB E70SZ JN84
162945  -8 1221  DH8FB UA3VVA LO06
162945  +2  714  DH8FB E70SZ JN84
163000 -11  713  E70SZ DH8FB -09
163015 -14 1221  DH8FB UA3VVA LO06
163015  -4  714  DH8FB E70SZ R-13
163030 -12  713  E70SZ DH8FB RR73
163045 -14 1221  DH8FB UA3VVA LO06
163045  -5  714  DH8FB E70SZ 73
163115  -5 1221  DH8FB UA3VVA LO06 (x2)
163230 -11 1221  UA3VVA DH8FB +08
163245 -14 1221  DH8FB UA3VVA R-08 (x2)
163500 -13  891  PF1B DH8FB RR73

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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