UR7CF — 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: KN48

Receiver-side FT8 activity involving UR7CF, decoded by SO8OO in southeastern Poland. 30 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, across 7 UTC dates in the available aggregate history. Observed between 2026-08-17 and 2026-10-31.

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 30 FT8 messages attributed to UR7CF as the transmitting token by decoded message structure across 7 UTC dates in the available aggregate history. The largest monitored-band total was 160 m (53%), followed by 80 m (40%) and 40 m (7%). Several six-hour UTC windows tied for the largest share (80%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -9 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-9 dB

Estimated median S/N

Bands

160m · 16 80m · 12 40m · 2

First attributed message: 2026-08-17
Last attributed message: 2026-10-31 20:58 UTC

Observed FT8 message patterns

Attributed sample: 30 messages
Active dates: 7 UTC dates
Estimated median S/N: -9 dB
Estimated 10th-90th percentile: -17 to -1 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 4, moderate (-15 to -9 dB) 11, strong (≥ -8 dB) 15.

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 UR7CF in decoded directed-looking exchanges:

HA3IS · Hungary SQ8GBG · Poland DL7ACA · Fed. Rep. of Germany EA3HMM · Spain OH3MB · Finland EX7DY · Kyrgyzstan

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 UR7CF

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: KN48 · 22 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 547 km (approx.)
Last such locator decoded: 2026-10-31 20:58 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	UR7CF S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-31 20:57	160m	-10 / -	VK6IR	- / -	4	Partial capture
10-31 20:49	160m	-6 / -	VK6IR	- / -	5	Partial capture
10-30 21:28	80m	-8 / -	EX7DY	- / -10	2	✓ Closing fragment
10-29 20:25	160m	-19 / -16	SQ8GBG	+1 / -	4	✓ Closing observed
10-27 18:36	40m	- / -14	DL7ACA	+1 / -	4	✓ Closing fragment
10-27 18:34	40m	- / +7	OH3MB	+4 / -	3	✓ Closing fragment
10-21 19:55	160m	- / -	UA4FKT	+3 / -	4	Partial capture
10-21 19:53	160m	-14 / -	R2EA/P	- / -4	2	Partial capture
10-21 18:43	40m	-10 / -	EY7BP	- / -	2	Partial capture
10-10 18:29	40m	- / -1	EA3HMM	+10 / -	3	✓ Closing fragment
08-21 03:18	80m	-8 / -	CX6TU	- / -	4	Partial capture
08-21 03:16	80m	-8 / -	W4BSS	- / -	2	Partial capture
08-17 20:17	160m	- / -	UA4FKT	-14 / -	2	Partial capture
08-17 20:15	160m	0 / -6	HA3IS	-7 / -26	5	✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

160m

UTC    dB Audio  Message
202500  -7 1590  UR7CF RK6OQ KN87
202530  +2 1550  UR7CF SQ8GBG KN09 (x2)
202615 -19 1588  SQ8GBG UR7CF RR73
202630  +2 1550  UR7CF SQ8GBG 73
202715 -24 1587  CQ UR7CF KN48
204900  -7 1486  VK6IR UR7CF KN48 (x9)

80m

UTC    dB Audio  Message
031630 -10 1659  W4BSS UR7CF KN48 (x2)
031800  -7 1659  CX6TU UR7CF KN48 (x4)
192730  +3 1570  UR7CF EM90ZMV +03
192745 -16 1931  PJ2/W4IPC UR7CF R-04
203245  -1 1630  A92AE UR7CF KN48
203430  -6 1630  BI8FRF UR7CF R-22
204115 -13 1371  EY7BP UR7CF KN48
212845 -14 1282  EX7DY UR7CF R-10 (x2)

40m

UTC    dB Audio  Message
031330  +9  810  UR7CF EN35UKR -15
182915 +10  395  UR7CF EA3HMM JN00 (x3)
184315  -9  801  EY7BP UR7CF KN48 (x2)
183400  +3 1424  UR7CF OH3MB KP20 (x3)
183600  +0 1423  UR7CF DL7ACA JO40 (x4)

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

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