DD8BV — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Fed. Rep. of Germany Most frequent locator attributed to this token: JO33

Receiver-side FT8 activity involving DD8BV, decoded by SO8OO in southeastern Poland. 76 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 21 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-09-20.

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 76 FT8 messages attributed to DD8BV as the transmitting token by decoded message structure across 21 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (84%), followed by 40 m (16%). Most decodes (51%) fell within the six-hour window 17:00-23:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -8 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-8 dB

Estimated median S/N

Bands

40m · 12 20m · 64

First attributed message: 2026-06-06
Last attributed message: 2026-09-20 18:10 UTC

Observed FT8 message patterns

Attributed sample: 76 messages
Active dates: 21 UTC dates
Estimated median S/N: -8 dB
Estimated 10th-90th percentile: -15 to -1 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 7, moderate (-15 to -9 dB) 28, strong (≥ -8 dB) 41.

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 DD8BV in decoded directed-looking exchanges:

II1NAP · Italy IU8ADS · Italy DK5CW · Fed. Rep. of Germany F1PBZ · France IN3IJJ · Italy RW3DDZ · European Russia T77RN · San Marino TI5RR · Costa Rica UR5WCS · Ukraine DL0EM · Fed. Rep. of Germany F4BYA · France F4MBU · 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 DD8BV

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: JO33 · 53 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,091 km (approx.)
Last such locator decoded: 2026-09-14 22:48 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	DD8BV S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-20 18:09	40m	-5 / -	EA3CFV	-5 / -17	2	Partial capture
09-14 22:09	40m	-11 / -	YO6LM	- / -12	2	✓ Closing fragment
09-12 21:36	40m	- / -7	HB9HSJ	+2 / -	2	Partial capture
09-10 22:05	40m	- / -16	F4MBU	-12 / -	2	Partial capture
09-01 22:42	40m	- / -	RX3ASQ	-2 / -	2	Partial capture
08-31 22:46	40m	- / -19	RX3ASQ	-5 / -	4	Partial capture
08-28 10:43	10m	- / -7	IU8ADS	+8 / -	2	✓ Closing fragment
08-27 05:00	20m	-7 / -	XE1TZP	- / -	2	Partial capture
08-26 17:28	20m	-11 / -	UR5YPV	- / -17	3	Partial capture
08-25 03:42	20m	- / -17	TI5RR	-3 / -	2	✓ Closing fragment
08-25 03:33	40m	-12 / -8	F4BYA	-1 / -14	5	✓ Full exchange observed
08-20 16:52	20m	0 / -	<...>	- / -	2	Partial capture
08-20 16:50	20m	-5 / -	ZA5G	- / -	3	Partial capture
08-16 15:15	20m	-3 / -	DL1R	-14 / -3	2	Partial capture
08-15 15:40	40m	- / -15	DL0EM	-13 / -	2	✓ Closing fragment
07-30 16:38	20m	-8 / -	4S6ARW	- / -	2	Partial capture
07-30 10:08	20m	-5 / -5	F1PBZ	-15 / -	3	✓ Closing observed
07-29 22:02	20m	- / -14	M7CYY	-12 / -	2	Partial capture
07-22 17:48	20m	-1 / -	RW3DDZ	- / -1	2	✓ Closing fragment
07-21 16:30	20m	-15 / -22	DK5CW	+13 / -	5	✓ Closing observed
07-18 21:56	20m	-7 / -	XV9T	- / -20	2	Partial capture
07-18 02:56	20m	- / -10	IN3IJJ	-15 / -	3	✓ Closing fragment
07-15 21:51	20m	- / -4	T77RN	-8 / -	2	✓ Closing fragment
07-03 22:11	40m	- / +1	LA1AAA	-2 / -	2	✓ Closing fragment
06-28 19:00	10m	- / -1	II1NAP	-16 / -	2	✓ Closing fragment
06-28 18:31	10m	- / -13	EC3A	-14 / -	2	Partial capture
06-26 17:54	20m	-15 / -	UR5WCS	- / -14	3	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
220545 -11 1193  DD8BV F4MBU -16 (x3)
213615  +2 1940  DD8BV HB9HSJ -07 (x2)
220900  -4 2290  CQ DD8BV JO33
220930 -10 2290  YO6LM DD8BV -12 (x2)
221030  -9 2290  CQ DD8BV JO33
222245  -5 2114  TK/4O7CC DD8BV JO33 (x2)
225045 -12  988  DD8BV F1PBZ -03
180815  -5 2842  ON5ACO DD8BV R-12
180900  -5 2841  DD8BV EA3CFV JN11
181045  -5 2842  EA3CFV DD8BV -17

20m

UTC    dB Audio  Message
221845  +0 2605  CQ DD8BV JO33 (x2)
232030 -16 1777  DD8BV HP1RY FJ09
232045  -1 2777  CQ DD8BV JO33
232415 -20 1928  HP1RY DD8BV -18
232645 -16 1928  XQ1KK DD8BV JO33
034230  -4  906  DD8BV TI5RR -17 (x2)
172800 -14 2777  UR5YPV DD8BV JO33 (x3)
050045 -12 2725  XE1TZP DD8BV JO33 (x2)
165230  -5 2676  BD6IUT DD8BV JO33
181800  -4 2712  BG5GEB DD8BV JO33

10m

UTC    dB Audio  Message
183145 -14 1658  DD8BV EC3A -13 (x2)
183900 -17  817  DD8BV ZA5G -10
190030 -17 1994  DD8BV II1NAP -01 (x2)
100600 -23 1690  DD8BV IK4TVP +02
104345  +9 2940  DD8BV IU8ADS R-07 (x2)

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.

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