US5WDP — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Ukraine Most frequent locator attributed to this token: KN29

Receiver-side FT8 activity involving US5WDP, decoded by SO8OO in southeastern Poland. 80 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 10m, across 5 UTC dates in the available aggregate history. Observed between 2026-06-10 and 2026-09-04.

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 80 FT8 messages attributed to US5WDP as the transmitting token by decoded message structure across 5 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (56%), followed by 160 m (20%) and 10 m (13%). Several six-hour UTC windows tied for the largest share (90%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (89%); the estimated median was +12 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

+12 dB

Estimated median S/N

Bands

160m · 16 80m · 45 40m · 9 10m · 10

First attributed message: 2026-06-10
Last attributed message: 2026-09-04 17:25 UTC

Observed FT8 message patterns

Attributed sample: 80 messages
Active dates: 5 UTC dates
Estimated median S/N: +12 dB
Estimated 10th-90th percentile: -21 to +22 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 9, moderate (-15 to -9 dB) 0, strong (≥ -8 dB) 71.

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 US5WDP in decoded directed-looking exchanges:

C31CT · Andorra ×2 OM7CF · Slovak Republic ×2 F1PBZ · France ×2 YB1HR · Indonesia ×2 A71AT · Qatar ×2 RL2F · Kaliningrad ×2 SQ8NGI · Poland HA7TM · Hungary EK1KE · Armenia G8KHF · England 9K2YM · Kuwait CS8ABF · Azores

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 US5WDP

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: KN29 · 50 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 236 km (approx.)
Last such locator decoded: 2026-08-26 18:51 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	US5WDP S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-29 08:45	20m	- / -3	HA1BF	-11 / -	2	✓ Closing fragment
08-26 19:01	10m	- / -11	CT3MD	-9 / -	2	✓ Closing fragment
08-26 18:51	80m	+3 / -6	RL2F	+10 / -10	5	✓ Full exchange observed
08-26 18:48	80m	+23 / -	LY7M	+8 / -11	7	✓ Full exchange observed
08-26 18:45	80m	+27 / -	OK4YL	+20 / -21	7	✓ Full exchange observed
08-26 18:43	80m	+17 / -	RL2F	- / -	2	Partial capture
08-26 18:38	80m	+11 / +2	HA7TM	+16 / -1	8	✓ Full exchange observed
08-26 18:34	80m	+12 / 0	SP2FTL	+14 / -3	7	✓ Full exchange observed
08-26 18:28	160m	+14 / +9	OM7CF	+5 / -5	7	✓ Full exchange observed
08-26 18:26	160m	+8 / -	E71AGA	- / -18	2	Partial capture
08-25 20:26	160m	+10 / -3	SQ8NGI	-10 / -10	4	✓ Full exchange observed
08-25 20:23	80m	+14 / -	F4HMU	- / -	2	Partial capture
08-25 20:21	80m	+13 / -11	ON4CJU	-10 / -16	4	✓ Full exchange observed
08-25 20:19	80m	+12 / -	EN35UKR	- / -7	2	Partial capture
08-25 20:17	80m	+15 / -5	E75C	+1 / -8	6	✓ Full exchange observed
08-25 20:15	80m	+16 / +6	LA2GCA	-15 / -15	5	✓ Full exchange observed
08-25 20:14	80m	+15 / +1	9A9N	0 / -7	5	✓ Full exchange observed
08-25 20:13	80m	- / -	DK8HC	-2 / -	5	Partial capture
08-25 20:13	80m	- / -17	JH2FXK	-23 / -	2	Partial capture
08-25 20:12	80m	+16 / -	<...>	- / -8	2	Partial capture
08-25 19:32	40m	+2 / -	EN35UKR	- / -	2	Partial capture
08-25 19:31	40m	+5 / +10	RL2F	-6 / -12	5	✓ Full exchange observed
08-25 19:29	40m	+4 / -	MM0JTV	- / -23	3	Partial capture
08-23 15:10	10m	- / +4	PD1RMB	-2 / -	2	✓ Closing fragment
08-23 15:03	10m	- / 0	SV2JAO	-6 / -	2	✓ Closing fragment
08-23 14:12	10m	- / -14	LZ3CB	+1 / -	2	✓ Closing fragment
08-21 18:25	10m	- / -	DK3TA	-20 / -	2	✓ Closing fragment
08-21 17:39	10m	- / +3	DL6EL	+4 / -	3	✓ Closing fragment
08-19 20:14	20m	- / -9	YO4NF	-10 / -	3	✓ Closing fragment
08-19 19:36	20m	- / -18	GM3AND	-6 / -	2	✓ Closing fragment
08-16 18:34	10m	- / +8	UX3HX	-10 / -	2	✓ Closing fragment
08-16 18:08	10m	- / +1	US6EC	-8 / -	2	✓ Closing fragment
08-16 17:29	10m	- / -	PA1GLD	-9 / -	3	Partial capture
08-16 12:54	20m	- / -15	SV1CQN	-20 / -	2	✓ Closing fragment
08-16 11:51	10m	- / -6	DK7UY	-7 / -	4	✓ Closing fragment
08-09 15:58	10m	- / -3	S59MA	-20 / -	3	Partial capture
08-08 17:17	10m	- / -2	OH4TQ	-14 / -	2	✓ Closing fragment
08-02 16:57	10m	- / -4	9K2YM	-7 / -	2	✓ Closing fragment
07-28 19:11	10m	- / +4	M0VUE	-16 / -	2	✓ Closing fragment
07-26 07:39	10m	- / -	DK8EE	-10 / -	2	✓ Closing fragment
07-26 07:37	10m	- / -20	ON4AZR	-10 / -	2	✓ Closing fragment
07-18 06:20	10m	- / -11	UK8OM	-21 / -	2	✓ Closing fragment
07-14 17:33	20m	- / -17	EK1KE	-16 / -	20	✓ Closing fragment
07-14 17:27	20m	- / -17	EK1KE	-21 / -	2	Partial capture
07-14 17:17	20m	- / -17	EK1KE	-14 / -	11	Partial capture
07-11 08:41	10m	- / -7	F1PBZ	-6 / -	4	✓ Closing fragment
07-10 19:31	10m	- / +9	G3VCQ	-12 / -	4	✓ Closing fragment
07-10 19:29	10m	- / +7	PA3AGN	-14 / -	6	Partial capture
07-05 09:43	10m	- / +1	DO1FDK	-5 / -	3	Partial capture
07-05 09:42	10m	- / -4	EA6YK	-10 / -	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
124145 -20 1720  US5WDP SN0GIP RR73
192930  +3 1125  MM0JTV US5WDP KN29 (x3)
193100  +6 1124  RL2F US5WDP KN29
193115  -8 2085  US5WDP RL2F +10
193130  +6 1121  RL2F US5WDP R-12
193145  -3 2085  US5WDP RL2F RRR
193200  +3 1121  RL2F US5WDP 73
193230  +2 1121  <EN35UKR> US5WDP KN29
193245  +0 1121  US5WDP UA4FKT LO23
193300  +3 1121  EN35UKR US5WDP KN29
172500  -2 1122  OZ1NIB US5WDP R-26

20m

UTC    dB Audio  Message
174630 -15 1394  US5WDP EK1KE -17 (x5)
125445 -20 1980  US5WDP SV1CQN -15 (x2)
193600  -3  901  US5WDP GM3AND -18 (x2)
201430  -7 1480  US5WDP YO4NF -09 (x3)
083945  -3 2656  US5WDP OK2CNI -16
084500 -15 1345  US5WDP HA1BF -03 (x2)

10m

UTC    dB Audio  Message
174115  +4 1794  US5WDP DL6EL 73
182530 -22 1480  US5WDP DK3TA JO50 (x2)
190130 -16  835  US5WDP G1OZO JO00
141245  +5  728  US5WDP LZ3CB -14 (x2)
150300  -4 2293  US5WDP SV2JAO +00
150315 -21 1185  US5WDP EB3JT JN01
150330  -8 2293  US5WDP SV2JAO RR73
151015  -2 2642  US5WDP PD1RMB +04 (x2)
200000  -5 2917  US5WDP IZ5IOM R-10
190145  -5  916  US5WDP CT3MD -11 (x2)
080930  -8  998  US5WDP S59MA RR73

80m

UTC    dB Audio  Message
184630 +26 1089  OK4YL US5WDP R-21
184645 +22 2910  US5WDP OK4YL RR73
184700 +29 1089  OK4YL US5WDP 73
184830 +22 1090  LY7M US5WDP KN29 (x3)
184945 +10 1859  US5WDP LY7M +15
185000 +26 1090  LY7M US5WDP R-11
185015  +7 1860  US5WDP LY7M RR73
185030 +23 1090  LY7M US5WDP 73
185145  +9 1090  RL2F US5WDP KN29
185200  +9 1909  US5WDP RL2F -06
185215  +4 1090  RL2F US5WDP R-10
185230 +12 1909  US5WDP RL2F RRR
185245  -5 1090  RL2F US5WDP 73

160m

UTC    dB Audio  Message
202900  +8 1083  CQ US5WDP KN29
182645 +10 1085  E71AGA US5WDP KN29 (x2)
182800 +12 1084  OM7CF US5WDP KN29 (x3)
182915  +3 1476  US5WDP OM7CF +09
182930 +12 1084  OM7CF US5WDP R-05
182945  +7 1476  US5WDP OM7CF RR73
183000 +13 1084  OM7CF US5WDP 73
183100 +14 1083  CQ US5WDP KN29 (x5)

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.

FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee