UR5BLM — FT8 activity observed at SO8OO

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

Receiver-side FT8 activity involving UR5BLM, decoded by SO8OO in southeastern Poland. 74 FT8 messages attributed to this token as transmitter, on 80m, 40m, across 1 UTC dates in the available aggregate history. Last observed 2026-10-04.

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 74 FT8 messages attributed to UR5BLM as the transmitting token by decoded message structure across 1 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (66%), followed by 80 m (34%). In this small sample, the estimated median decoder S/N was -5 dB; no usual signal pattern is inferred.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-5 dB

Estimated median S/N

Bands

80m · 25 40m · 49

First attributed message: 2026-10-04
Last attributed message: 2026-10-04 17:38 UTC

Observed FT8 message patterns

Attributed sample: 74 messages
Active dates: 1 UTC dates
Estimated median S/N: -5 dB
Estimated 10th-90th percentile: -14 to +14 dB
Recurring-pattern threshold: Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 2, moderate (-15 to -9 dB) 18, strong (≥ -8 dB) 54.

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 UR5BLM in decoded directed-looking exchanges:

HA1BF · Hungary ×2 LZ2TDF · Bulgaria ×2 SQ5FOX · Poland ×2 OK1PHM · Czech Republic SV2HTW · Greece ER1MM · Moldova SP8RPA · Poland

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 UR5BLM

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 · 42 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 236 km (approx.)
Last such locator decoded: 2026-10-04 17:31 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	UR5BLM S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-04 17:34	80m	+1 / -	UR5RBP	- / -19	7	Partial capture
10-04 17:19	80m	+13 / -	UR0GK	- / -	8	Partial capture
10-04 17:19	80m	- / -	9A4ZM	+16 / -	2	Partial capture
10-04 17:16	80m	- / -	DO9BAU	+10 / -	8	Partial capture
10-04 17:14	80m	+15 / +1	SP8RPA	+12 / -	4	✓ Closing observed
10-04 17:09	80m	- / -	DO9BAU	+9 / -	9	Partial capture
10-04 16:59	40m	-4 / -	TA2EE	- / -19	4	Partial capture
10-04 16:58	40m	-5 / -1	YO9XC	+4 / +3	2	Partial capture
10-04 16:51	40m	-13 / -	DJ2MS	- / -	2	Partial capture
10-04 16:49	40m	-14 / -11	SQ5FOX	-12 / -2	5	✓ Full exchange observed
10-04 11:20	40m	-8 / +7	HA1BF	+2 / -8	4	✓ Full exchange observed
10-04 11:14	40m	-5 / +4	HA1BF	-1 / -10	6	✓ Full exchange observed
10-04 10:46	40m	-11 / +5	LZ2TDF	-14 / +1	5	✓ Full exchange observed
10-04 10:44	40m	-6 / -	DL6KBV	- / -	2	Partial capture
10-04 10:42	40m	- / -	9A4ZM	-6 / -	2	Partial capture
10-04 10:41	40m	-2 / -10	SV2HTW	-8 / -3	4	✓ Full exchange observed
10-04 10:39	40m	-4 / -1	LZ2TDF	-14 / -3	5	✓ Full exchange observed
10-04 08:23	40m	- / -20	SQ3MQD	-10 / -	3	Partial capture
10-04 08:04	40m	-16 / -	UT4PA	- / 0	2	Partial capture
10-04 07:59	40m	-10 / -21	OK1PHM	-10 / -	8	✓ Full exchange observed
10-04 07:56	40m	-7 / -	PD2MAC	- / -	6	Partial capture
10-04 07:52	40m	-8 / -	HF40BLP	- / -	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
172245  +9  445  UR0GK UR5BLM KN29 (x4)
172915  +4 1533  CQ UR5BLM KN29 (x4)
173445  +2  815  UR5RBP UR5BLM -19 (x7)

40m

UTC    dB Audio  Message
164930 -14 1122  SQ5FOX UR5BLM R-02
164945 -11 1123  UR5BLM SQ5FOX RR73
165000 -14 1122  SQ5FOX UR5BLM 73
165115 -14 1067  DJ2MS UR5BLM KN29 (x2)
165800  +4  558  UR5BLM YO9XC -01
165815  -5  559  YO9XC UR5BLM R+03
165830  +3  558  UR5BLM RR73; DL4NM <...> -14
165845  -4  559  CQ UR5BLM KN29
165915  -4  558  TA2EE UR5BLM -19 (x4)
170115 -10  557  CQ UR5BLM KN29 (x2)

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