RD3AD — 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: European Russia Most frequent locator attributed to this token: KO85

Receiver-side FT8 activity involving RD3AD, decoded by SO8OO in southeastern Poland. 1,095 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, 10m, across 93 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-11-05.

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 1,095 FT8 messages attributed to RD3AD as the transmitting token by decoded message structure across 93 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (61%), followed by 40 m (18%) and 160 m (12%). Most decodes (91%) fell within the six-hour window 14:00-20:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -13 dB.

Overview

1,095

Messages attributed

UTC dates decoded

289

Active 15-min windows

-13 dB

Estimated median S/N

Bands

160m · 129 80m · 672 40m · 201 20m · 80 10m · 13

First attributed message: 2026-06-06
Last attributed message: 2026-11-05 17:43 UTC

Observed FT8 message patterns

Attributed sample: 1,095 messages
Active dates: 93 UTC dates
Estimated median S/N: -13 dB
Estimated 10th-90th percentile: -21 to -4.7 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 379, moderate (-15 to -9 dB) 432, strong (≥ -8 dB) 284.

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 RD3AD in decoded directed-looking exchanges:

R2EA/P · European Russia ×5 R5AV · European Russia ×3 R2DGN · European Russia ×2 RT2P · European Russia ×2 RW2Z · European Russia ×2 UA3PTK · European Russia ×2 UA6HJT · European Russia ×2 RC9WC · Asiatic Russia ×2 YL3NU · Latvia ×2 LZ4NV · Bulgaria RA0AF · Asiatic Russia OI5AY · Finland

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 RD3AD

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: KO85 · 734 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,193 km (approx.)
Last such locator decoded: 2026-11-05 17:43 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	RD3AD S/N	Counterpart	Counterpart S/N	Msgs	Capture
11-05 17:43	160m	-20 / -	UA4QK	- / -	2	Partial capture
11-05 17:40	160m	-22 / +8	RA3UEV	-8 / +1	4	✓ Full exchange observed
11-05 17:25	80m	- / -3	R3DPZ	-4 / -	2	✓ Closing fragment
11-05 17:12	80m	-12 / -16	RC9WC	-10 / -17	4	✓ Full exchange observed
11-05 17:08	80m	-7 / -12	RC9WC	-2 / -14	4	Partial capture
11-05 16:44	40m	-18 / -	R4CCP	- / -12	2	Partial capture
11-03 16:04	80m	-16 / -	RA6ZN	- / -	4	Partial capture
11-03 15:47	160m	- / -22	R1FD	-9 / -	2	✓ Closing fragment
11-03 05:23	40m	- / -8	LZ911TD	+1 / -	2	Partial capture
11-03 05:19	40m	- / -7	F5OYA/P	-12 / -	3	Partial capture
11-02 15:19	80m	-4 / +6	SM4GOJ	-4 / -5	5	✓ Full exchange observed
11-02 05:07	40m	-23 / -15	LZ2IP	-1 / -4	4	✓ Full exchange observed
11-01 17:30	160m	-12 / -6	UD3T	-18 / -7	4	✓ Full exchange observed
11-01 17:19	80m	-9 / -	II4GCLB	- / -5	3	Partial capture
11-01 17:11	40m	-22 / -	ER3BN	- / -	2	Partial capture
11-01 16:26	40m	- / -	F4LNM	-3 / -	2	Partial capture
11-01 16:26	40m	- / +2	RU6FK	-13 / -	2	✓ Closing fragment
11-01 16:16	40m	-24 / -10	RA6FCU/P	-9 / -10	4	✓ Full exchange observed
10-30 17:04	160m	- / -7	RA3SS	-6 / -	2	✓ Closing fragment
10-30 17:01	80m	- / -	DA6NEL	+6 / -	3	Partial capture
10-30 16:56	80m	-4 / -	RV3DBV	- / -	2	Partial capture
10-30 16:51	80m	-8 / -	OE/DL1MKW	- / -18	2	Partial capture
10-30 16:43	80m	-12 / +1	RL3QGD	-19 / -20	5	✓ Full exchange observed
10-29 18:00	80m	- / -22	R8PG	-18 / -	2	Partial capture
10-29 18:00	80m	-5 / -	RC9WC	- / -9	2	✓ Closing fragment
10-29 17:59	80m	-8 / -11	DL5MO	-8 / -15	6	✓ Full exchange observed
10-29 17:53	80m	-14 / -10	R3TY	-18 / -4	4	✓ Full exchange observed
10-29 17:51	80m	-12 / -	R9FAI	- / -	2	Partial capture
10-29 17:46	80m	- / -13	DL4SUN	+6 / -	2	✓ Closing fragment
10-29 17:43	80m	-13 / -3	SP5OXJ	-1 / -	3	✓ Closing observed
10-28 16:01	160m	- / -1	RJ3DC	-18 / -	2	Partial capture
10-28 15:22	40m	-18 / -8	UA3VBD	-6 / -	4	✓ Closing observed
10-28 15:20	40m	-18 / -	RU3G	-23 / -11	4	✓ Closing observed
10-28 15:17	40m	-13 / -2	RW6ATD	+4 / -	2	Partial capture
10-26 18:20	80m	-14 / -1	R3QN	-10 / -7	5	✓ Full exchange observed
10-26 17:53	80m	-6 / -5	R2DVN	-6 / -8	4	✓ Full exchange observed
10-26 17:50	80m	- / -21	DL5MO	-1 / -	2	Partial capture
10-26 17:42	80m	- / +2	R1FZ	-4 / -	2	✓ Closing fragment
10-26 17:37	80m	-12 / -	UB4HTD	- / -20	2	✓ Closing fragment
10-25 18:40	80m	-6 / -	R4HEA	-4 / -	3	✓ Closing observed
10-25 18:38	80m	-7 / -4	OM3TWM	+2 / -1	4	✓ Full exchange observed
10-25 16:35	80m	-10 / -	R8LCM/M	- / -21	2	Partial capture
10-25 16:31	80m	-9 / -	R8LCM/M	- / -21	2	Partial capture
10-25 16:29	80m	-8 / -	R2EA/P	- / -	2	Partial capture
10-25 16:20	80m	-14 / -	R2EA/P	- / -	4	Partial capture
10-25 14:50	40m	- / -12	R5QA	-14 / -	2	Partial capture
10-25 03:59	40m	- / -25	TA5DOB	-22 / -	2	✓ Closing fragment
10-24 18:48	160m	-14 / -	UB3IBG	-4 / -9	6	✓ Full exchange observed
10-24 18:48	160m	-13 / +2	R5AV	-4 / 0	4	✓ Full exchange observed
10-24 18:40	160m	-18 / -	RU9F	- / -	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

160m

UTC    dB Audio  Message
170515 -11 1245  RD3AD RA3SS RR73
173030 -19 1899  RD3AD UD3T -06
173045 -12 1193  UD3T RD3AD R-07
173100 -16 1898  RD3AD UD3T RR73
173115 -11 1193  UD3T RD3AD 73
154730  -4 1152  RD3AD R1FD -22 (x2)
173230 -17 1440  OM3SX RD3AD KO85
173330 -18 1439  CQ RD3AD KO85
174000  -9 1225  RD3AD RA3UEV +08
174015 -21 1439  RA3UEV RD3AD R+01
174030  -8 1225  RD3AD RA3UEV RR73
174045 -24 1439  RA3UEV RD3AD 73
174315 -18 1439  UA4QK RD3AD KO85 (x2)

80m

UTC    dB Audio  Message
170900  +0 1643  RD3AD RC9WC -20
170915 -12 1330  CQ RD3AD KO85
170930  -2 1642  RD3AD RC9WC -20
171015  -7 1330  RC9WC RD3AD R-14
171045  -8 1330  CQ RD3AD KO85 (x3)
171230  -7 1643  RD3AD RC9WC -16
171245 -13 1330  RC9WC RD3AD R-17
171300 -13 1643  RD3AD RC9WC RR73
171315 -12 1330  RC9WC RD3AD 73
171430 -16  615  RD3AD UA3PY/QRP -13
171445  -7 1330  DK80NDS RD3AD R-12
172515  -5 1393  RD3AD R3DPZ R-03 (x2)

40m

UTC    dB Audio  Message
050900  -2 1195  RD3AD LZ2IP RR73
051145 -24 1194  TA3NP RD3AD KO85
051315 -23 1193  DN2KMK/QRP RD3AD KO85
051930 -13  613  RD3AD F5OYA/P -07 (x3)
052130 -23 1390  UA9XL/P RD3AD KO85
052315  +4 1601  RD3AD LZ911TD -08 (x2)
052530 -19 1389  UA9XL/P RD3AD KO85
052715  +8 1282  RD3AD OE/DL6CGU +01
153315 -24 1861  RD3AD RK6OU -10
163630 -18 1327  R4CCP RD3AD KO85 (x3)

10m

UTC    dB Audio  Message
072145 -14 1277  RD3AD LZ4NV +07 (x2)
084930 -11 1394  RD3AD RA0AF -03 (x2)

60m

UTC    dB Audio  Message
164800 -12 1088  RD3AD OZ5AGJ JO47
164800  -6  799  <RD3AD> DL2PK/M 73
164830 -14 1088  RD3AD OZ5AGJ JO47
165000  -8  799  RD3AD DL2PK/M RRR

20m

UTC    dB Audio  Message
091315 -21 1782  F1THK RD3AD R-08
091330  -1 2327  RD3AD F1THK RR73
092230  +3 1079  RD3AD SH4UMN +02 (x2)
143200 -15 1605  RD3AD BG0EMF -13
143515  +2 1270  RD3AD UA9LKL +05 (x2)
165415  -4 1044  R8CJG RD3AD KO85
082545  +2 1230  RI1FJL RD3AD KO85 (x6)
054900 -13  975  RD3AD HB9FNN JN37

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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