RD3AD — FT8 activity observed at SO8OO

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. 670 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, 10m, across 63 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-09-19.

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 670 FT8 messages attributed to RD3AD as the transmitting token by decoded message structure across 63 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (61%), followed by 40 m (13%) and 160 m (12%). Most decodes (88%) fell within the six-hour window 15:00-21:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -13 dB.

Overview

670

Messages attributed

UTC dates decoded

187

Active 15-min windows

-13 dB

Estimated median S/N

Bands

160m · 82 80m · 406 40m · 89 20m · 80 10m · 13

First attributed message: 2026-06-06
Last attributed message: 2026-09-19 19:03 UTC

Observed FT8 message patterns

Attributed sample: 670 messages
Active dates: 63 UTC dates
Estimated median S/N: -13 dB
Estimated 10th-90th percentile: -21 to -5 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 240, moderate (-15 to -9 dB) 274, strong (≥ -8 dB) 156.

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 ×3 R6OQ · European Russia ×2 RZ3ZY · European Russia ×2 R2DGN · European Russia ×2 R5AV · European Russia ×2 RT2P · European Russia ×2 RW2Z · European Russia ×2 UA3PTK · European Russia ×2 RW6MZ · European Russia ×2 RA6OD · European Russia ×2 IU0VOG · Italy LZ4NV · Bulgaria

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 · 445 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,193 km (approx.)
Last such locator decoded: 2026-09-19 19:03 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
09-19 18:33	80m	- / -	R4FDK	-2 / -	2	✓ Closing fragment
09-19 18:31	80m	- / -6	R3RRC/P	-1 / -	2	✓ Closing fragment
09-19 15:38	40m	- / -14	R4HNT	-6 / -	2	✓ Closing fragment
09-19 15:28	40m	-13 / +10	R3RRC/P	-10 / -10	2	Partial capture
09-18 18:42	160m	- / -	DK2CC	-11 / -	3	Partial capture
09-18 18:15	40m	- / -11	UB6LUR	-8 / -	2	✓ Closing fragment
09-18 17:51	80m	- / -	SP9WAZ	+6 / -	2	Partial capture
09-18 17:51	80m	- / -	RX6DA	+1 / -	4	Partial capture
09-16 18:07	80m	-12 / -	R4HLO	- / -16	2	✓ Closing fragment
09-16 18:04	80m	- / -6	RA2FU	-20 / -	2	Partial capture
09-16 18:04	80m	-7 / -11	RG5A	-8 / -	7	✓ Closing observed
09-14 16:17	80m	-8 / -	UA9JTJ/9	- / -13	3	Partial capture
09-14 16:06	40m	-18 / -8	RL8C	-7 / -	2	Partial capture
09-14 15:59	40m	- / +1	R4ML	+2 / -	3	✓ Closing fragment
09-12 18:31	80m	- / -6	R2SN	+8 / -	2	✓ Closing fragment
09-12 18:25	40m	- / -9	YO9ADN	-8 / -	2	Partial capture
09-12 18:12	40m	- / -	RA6LTD	-6 / -	2	✓ Closing fragment
09-11 18:07	80m	-8 / -7	RK3YWA	-10 / -18	5	✓ Full exchange observed
09-11 18:05	80m	-10 / -7	R3PLA	-10 / -6	5	✓ Full exchange observed
09-11 18:00	80m	-7 / -	R0QBB/3	- / 0	2	Partial capture
09-11 17:56	80m	-7 / -	UB3ADO/P	- / -12	4	✓ Closing fragment
09-10 18:37	160m	-15 / -3	R3DPH	-8 / 0	6	✓ Full exchange observed
09-10 18:31	160m	-19 / -	UA4QK	- / -	2	Partial capture
09-10 17:42	80m	- / -	DO1MDO	-1 / -	4	Partial capture
09-10 17:39	80m	-4 / -	R1TET	- / -	2	Partial capture
09-10 17:37	80m	-6 / -	RV3YR	-5 / -	2	✓ Closing observed
09-10 17:21	80m	-8 / -7	R6YBU	-9 / -	4	✓ Closing observed
09-10 17:15	80m	-10 / -12	R70SAB	-14 / -9	4	✓ Full exchange observed
09-10 17:02	40m	-12 / -14	YO3GNF	-10 / -12	15	✓ Full exchange observed
09-10 16:53	40m	- / -	RN6AK	-5 / -	2	✓ Closing fragment
09-08 18:10	40m	- / -	UB3FBD	-8 / -	2	Partial capture
09-08 18:08	40m	-12 / -	RN6HCA	- / -8	4	✓ Closing fragment
09-08 18:06	40m	-12 / -7	UF2F	-2 / -10	4	✓ Full exchange observed
09-08 18:04	40m	-19 / +3	SA6DST	+8 / -	3	✓ Closing observed
09-08 17:21	40m	-14 / -	LB6BK	-8 / -8	3	✓ Closing observed
09-07 18:06	80m	-8 / -	DL3MIB	-3 / -18	3	✓ Closing observed
09-07 18:04	80m	-12 / -	RD4CC	- / -	2	Partial capture
09-07 18:02	80m	-8 / -	RK3YWA	- / -	2	Partial capture
09-07 18:00	80m	-10 / -	R3TY	- / -	2	Partial capture
09-07 17:57	80m	-12 / -	R3PMU	+8 / +2	4	✓ Closing observed
09-07 17:44	40m	-13 / +8	R2GFN	+6 / -6	3	✓ Full exchange observed
09-06 18:42	160m	-14 / -	R9CS/P	- / -	2	Partial capture
09-06 18:37	160m	-18 / -16	OK1TP	+7 / -	3	✓ Closing observed
09-06 18:20	80m	- / -	DG5PW	-14 / -	3	Partial capture
09-06 18:20	80m	- / -	SP9WAZ	+3 / -	2	Partial capture
09-06 18:14	80m	-6 / -	R3DNB	- / -	2	✓ Closing fragment
09-06 18:13	80m	-9 / -13	RK3YWA	-5 / -	3	Partial capture
09-06 18:11	80m	-21 / -	SQ100PKP	- / -8	2	Partial capture
09-03 18:10	80m	-4 / -	RW2Z	-6 / -5	3	✓ Closing observed
09-03 18:04	80m	-6 / +8	UA3IDQ	-22 / -22	3	Partial capture

Recent FT8 messages decoded at SO8OO

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

160m

UTC    dB Audio  Message
183745  -8  712  RD3AD R3DPH -03
183800 -17 1283  R3DPH RD3AD R+00
183815  -9  712  RD3AD R3DPH RR73
183830 -13 1283  R3DPH RD3AD 73
184745 -15 1334  CQ RD3AD KO85
184800  +4 1335  RD3AD SQ9PBV JN99
184815 -12 1334  CQ RD3AD KO85 (x4)
184230 -15 2114  RD3AD DK2CC JO63 (x3)
185330 -18 1500  CQ RD3AD KO85
190315 -12 1500  SV8DJW RD3AD KO85

80m

UTC    dB Audio  Message
174745  -7 1272  CQ RD3AD KO85 (x4)
175100  +3 2346  RD3AD RX6DA KN85
175130  +5  809  RD3AD SP9WAZ JO90
175130  +1 2347  RD3AD RX6DA KN85
175200  +8  809  RD3AD SP9WAZ JO90
175200  +1 2346  RD3AD RX6DA KN85 (x2)
183100  -3 2425  RD3AD R3RRC/P -06 (x2)
183330  +0 1241  RD3AD R4FDK LO23 (x2)
183715 -21 1438  CQ RD3AD KO85

40m

UTC    dB Audio  Message
155900  +2  424  RD3AD R4ML LO44 (x3)
160200 -10 2013  RD3AD IQ4JO JN63
160630 -18 1439  RL8C RD3AD KO85
160700 -19 1439  SN31ROT RD3AD KO85
160745  -7 1299  RD3AD RL8C -08
181500  -7 1538  RD3AD UB6LUR -11 (x2)
182115 -15 1146  SQ9SET RD3AD KO85
152800 -10 1989  RD3AD R3RRC/P +10
152845 -13 1459  R3RRC/P RD3AD R-10
153845  -9  442  RD3AD R4HNT -14 (x2)
155245  -3 1458  RD3AD UA3DLP R-10

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

10m

UTC    dB Audio  Message
182045 -22 1552  R6OQ RD3AD RR73
101330 -16 1329  RD3AD RN6MA RR73
061215 -15 2365  RD3AD RU3DNN KO96
094945 -13  746  RD3AD OH3OJ RR73
095330 -24 1427  CQ RD3AD KO85
095415 -23 1426  RD3AD RU3GF -18
163615 -18 1562  RD3AD R7RAE R+06
163945 -22 1762  RD3AD LZ2XF KN33
054215 -21 1483  JA6FIO RD3AD KO85
054215 -23 1469  R4IK RD3AD R+05
054615 -24 1740  CQ RD3AD KO85                         a1
055430 -19 1385  R4HNX RD3AD KO85
063100 -13 1206  IU0VOG RD3AD 73
072145 -14 1277  RD3AD LZ4NV +07 (x2)

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.

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