UR5SD — 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: Ukraine Most frequent locator attributed to this token: KN28

Receiver-side FT8 activity involving UR5SD, decoded by SO8OO in southeastern Poland. 1,430 FT8 messages attributed to this token as transmitter, on 80m, 40m, across 37 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-11-01.

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 1,430 FT8 messages attributed to UR5SD as the transmitting token by decoded message structure across 37 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (89%), followed by 80 m (11%). Most decodes (84%) fell within the six-hour window 17:00-23:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (90%); the estimated median was +7.3 dB.

Overview

1,430

Messages attributed

UTC dates decoded

132

Active 15-min windows

+7.3 dB

Estimated median S/N

Bands

80m · 160 40m · 1,270

First attributed message: 2026-06-08
Last attributed message: 2026-11-01 07:11 UTC

Observed FT8 message patterns

Attributed sample: 1,430 messages
Active dates: 37 UTC dates
Estimated median S/N: +7.3 dB
Estimated 10th-90th percentile: -8 to +16.9 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 5, moderate (-15 to -9 dB) 131, strong (≥ -8 dB) 1,294.

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 UR5SD in decoded directed-looking exchanges:

2E0UNE · England 5P1KZX · Denmark 8Q7PR · Maldives 9A4AA · Croatia AB8RL · United States BD4VNB · China BD6RAV · China BG0FQU · China BV2NF · Taiwan CR5VP · Portugal CS7BHA · Portugal CT2HEX · Portugal

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 UR5SD

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: KN28 · 842 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 283 km (approx.)
Last such locator decoded: 2026-11-01 07:11 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	UR5SD S/N	Counterpart	Counterpart S/N	Msgs	Capture
11-01 07:11	40m	+8 / -	SH7KAT	- / -	2	Partial capture
11-01 07:07	40m	-1 / -	F1UNR	- / -16	3	✓ Closing fragment
10-31 17:13	80m	+18 / -	BA4RF	-14 / -7	3	✓ Closing observed
10-31 17:11	80m	+14 / -	OH3BYZ	- / -	2	Partial capture
10-31 03:07	40m	-14 / -	AB8RL	- / -	2	✓ Closing fragment
10-31 03:00	40m	-12 / -	N8BV	- / -	2	Partial capture
10-31 02:46	40m	- / -	UA4FKT	+14 / -	2	Partial capture
10-31 02:45	40m	-13 / -	N4MMR	- / -	3	Partial capture
10-31 02:44	40m	-13 / +3	K4XL	-10 / -	4	✓ Closing observed
10-31 02:43	40m	-16 / -	CE4FOQ	- / -	2	Partial capture
10-31 02:36	40m	- / -	F3CJ	-11 / -	2	Partial capture
10-31 02:29	40m	-16 / +1	EA4HTI	-15 / -	2	✓ Closing observed
10-29 15:58	80m	+13 / -	EX7DY	- / -20	3	Partial capture
10-29 15:54	80m	- / -	RA3TK	-14 / -	2	Partial capture
10-29 15:54	80m	+12 / +4	SQ8LSB	-6 / +5	5	✓ Full exchange observed
10-29 15:50	80m	+15 / -3	DL1EGU	-1 / -9	5	✓ Full exchange observed
10-29 15:50	80m	+13 / -	DO5PY	-6 / -16	6	✓ Closing observed
10-29 15:48	80m	+16 / +1	LY3BFH	+2 / +7	4	✓ Full exchange observed
10-29 04:44	80m	- / -18	K0KT	-18 / -	12	Partial capture
10-29 04:29	80m	- / -18	K0KT	-20 / -	12	Partial capture
10-29 04:20	80m	+16 / -	VA2EHQ	- / -	6	Partial capture
10-29 04:18	80m	+18 / -	VE2CKW	- / -	2	Partial capture
10-29 04:15	80m	+10 / -	K0KT	-24 / -24	3	Partial capture
10-29 04:14	80m	+16 / -	VE2CKW	- / -24	3	Partial capture
10-29 04:13	80m	+14 / +1	UT3UZ	-2 / -	6	✓ Full exchange observed
10-29 04:12	80m	+16 / -	F4CTJ	- / -	2	Partial capture
10-29 04:11	80m	+16 / -	UY0HY	0 / -	5	✓ Full exchange observed
10-29 04:09	80m	+9 / -	EA4IPN	- / -	2	Partial capture
10-29 04:08	80m	+14 / -4	OH6IH	-11 / -19	4	✓ Full exchange observed
10-29 04:05	80m	+17 / -	EA4IPN	- / -	4	Partial capture
10-28 17:17	80m	+19 / -	XX9TXN	- / -	3	Partial capture
10-28 17:11	80m	+17 / -	XX9TXN	- / -	4	Partial capture
10-28 16:33	80m	+15 / -	UR5SG	+10 / -	4	✓ Full exchange observed
10-27 22:28	80m	+14 / -	OK2BRV	- / -	3	Partial capture
10-27 22:27	80m	+18 / -	US5WFL	-3 / -2	3	✓ Closing observed
10-27 22:24	80m	+16 / -	SM7TZK	- / -	2	Partial capture
10-27 22:22	80m	+19 / -1	GW4HZA	-8 / -17	7	✓ Full exchange observed
10-27 22:19	80m	+16 / -	MI0OBC	- / -11	3	✓ Closing fragment
10-27 22:16	80m	+17 / -13	A92AE	-9 / -16	4	✓ Full exchange observed
10-27 22:15	80m	+16 / +7	G7RHF	-5 / -24	4	✓ Full exchange observed
10-27 22:13	80m	+20 / -	UR4UM	- / -2	3	✓ Closing fragment
10-27 22:11	80m	+18 / -	CT7AIU	- / -12	4	Partial capture
10-27 22:09	80m	+17 / +10	M0ABG	-8 / -16	5	✓ Full exchange observed
10-27 07:54	40m	+12 / -	YO4AAC	- / +1	3	✓ Closing fragment
10-27 07:52	40m	+14 / -	SP7WMI	- / -	3	Partial capture
10-27 07:49	40m	+11 / -	SA7BKX	- / -	4	Partial capture
10-27 07:47	40m	+13 / -	MM0JTV	- / -23	4	✓ Closing fragment
10-27 07:45	40m	+13 / -	M9VVE	- / -	3	Partial capture
10-27 07:43	40m	+11 / -	G0UZE	- / -12	3	✓ Closing fragment
10-27 07:42	40m	+9 / -	TF5B	- / -18	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
025415 -15 2426  WA2HIP UR5SD KN28
025545 -15 2425  N4MMR UR5SD KN28
025915 -13 2426  OA4ENG UR5SD KN28
030045 -11 2425  N8BV UR5SD KN28 (x2)
030730 -14 2425  AB8RL UR5SD KN28 (x2)
031815 -15 2425  YO1BRANCUSI UR5SD KN28
070730  -5 2514  F1UNR UR5SD KN28 (x3)
070900 -13 1542  S55X UR5SD KN28
071000 -10 1605  F4HSB UR5SD RR73
071115  +9 2516  SH7KAT UR5SD KN28 (x2)

80m

UTC    dB Audio  Message
155515  -8 1167  UR5SD SQ8LSB R+04
155530 +12 2453  SQ8LSB UR5SD RR73
155545  -6 1167  UR5SD SQ8LSB 73
155600 +10 2453  CQ UR5SD KN28 (x2)
155645 -15 2457  UR5SD RA3TK LO16
155700 +10 2453  CQ UR5SD KN28
155815  +9 2454  EX7DY UR5SD KN28 (x3)
171115 +13 2183  OH3BYZ UR5SD KN28 (x2)
171345 +18  559  BA4RF UR5SD R-07
171400 -14  559  UR5SD BA4RF RR73
171415 +17  559  BA4RF UR5SD 73

20m

UTC    dB Audio  Message
075600 -19 2257  UR5SD YO4NT -09

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

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