UR3AHF — 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: KO70

Receiver-side FT8 activity involving UR3AHF, decoded by SO8OO in southeastern Poland. 54 FT8 messages attributed to this token as transmitter, on 40m, across 1 UTC dates in the available aggregate history. Last observed 2026-10-29.

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 54 FT8 messages attributed to UR3AHF 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 (100%). In this small sample, the estimated median decoder S/N was -13 dB; no usual signal pattern is inferred.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-13 dB

Estimated median S/N

Bands

40m · 54

First attributed message: 2026-10-29
Last attributed message: 2026-10-29 07:07 UTC

Observed FT8 message patterns

Attributed sample: 54 messages
Active dates: 1 UTC dates
Estimated median S/N: -13 dB
Estimated 10th-90th percentile: -16 to -8 dB
Recurring-pattern threshold: Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 9, moderate (-15 to -9 dB) 38, strong (≥ -8 dB) 7.

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 UR3AHF in decoded directed-looking exchanges:

7Z1DH · Saudi Arabia 5B4AMX · Cyprus DD1OO · Fed. Rep. of Germany DK1HSI · Fed. Rep. of Germany DM2BM · Fed. Rep. of Germany F4DIA · France HA1ZW · Hungary IQ0AAI · Sardinia IQ0AK · Sardinia M9HEB · England

Most frequent locator attributed to UR3AHF

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: KO70 · 26 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 941 km (approx.)
Last such locator decoded: 2026-10-29 07:04 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	UR3AHF S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-31 10:40	10m	- / -16	EA1RCU	+1 / -	2	Partial capture
10-29 07:05	40m	-14 / -11	DD1OO	+4 / -10	4	✓ Full exchange observed
10-29 07:04	40m	-15 / -19	F4DIA	-13 / -11	7	✓ Full exchange observed
10-29 07:03	40m	-11 / -13	DK1HSI	+2 / -10	5	✓ Full exchange observed
10-29 06:59	40m	-14 / +1	M9HEB	-16 / -19	8	✓ Full exchange observed
10-29 06:58	40m	-17 / -	DM2BM	- / -14	3	✓ Closing fragment
10-29 06:56	40m	-16 / -	P4/WE9V	- / -11	3	Partial capture
10-29 06:54	40m	-11 / -	5B4AMX	- / -13	3	✓ Closing fragment
10-29 06:51	40m	-14 / -	ON3ANY	- / -	6	Partial capture
10-29 06:47	40m	-11 / -	IQ0AK	- / -19	8	✓ Closing fragment
10-29 06:44	40m	-13 / -	OH3DJP	- / -	6	Partial capture
10-29 06:43	40m	-10 / -10	HA1ZW	-10 / 0	5	✓ Full exchange observed
10-29 06:40	40m	-13 / -	IQ0AAI	- / -14	5	✓ Closing fragment
10-29 06:39	40m	-10 / -	P4/WE9V	- / -	3	Partial capture

Recent FT8 messages decoded at SO8OO

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

10m

UTC    dB Audio  Message
132500 -19 2094  UR3AHF 7Z1DH RR73
104045  +3 2545  UR3AHF EA1RCU -16 (x2)

40m

UTC    dB Audio  Message
070330  +3  386  UR3AHF DK1HSI -13
070345  -9 1673  DK1HSI UR3AHF R-10
070400  +0  386  UR3AHF DK1HSI RR73
070415 -14 1673  DK1HSI UR3AHF 73
070445 -11 1673  F4DIA UR3AHF KO70
070530  +4  335  UR3AHF DD1OO -11
070545 -13 1673  DD1OO UR3AHF R-10
070600 -12 1679  UR3AHF F4DIA -19
070600  +5  335  UR3AHF DD1OO RR73
070615 -16 1673  DD1OO UR3AHF 73
070630 -13 1679  UR3AHF F4DIA -19
070645 -16 1673  F4DIA UR3AHF R-11
070700 -11 1679  UR3AHF F4DIA -19
070715 -19 1673  F4DIA UR3AHF 73
070730 -16 1679  UR3AHF F4DIA -19

CW

No CW receptions recorded for this callsign in the last 30 days.

Explore CW reception at SO8OO

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