RD7LC — 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: KN97

Receiver-side FT8 activity involving RD7LC, decoded by SO8OO in southeastern Poland. 4,748 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 106 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-10-23.

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 4,748 FT8 messages attributed to RD7LC as the transmitting token by decoded message structure across 106 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (61%), followed by 80 m (20%) and 10 m (13%). Most decodes (76%) fell within the six-hour window 12:00-18:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (64%); the estimated median was -6 dB.

Overview

4,748

Messages attributed

106

UTC dates decoded

524

Active 15-min windows

-6 dB

Estimated median S/N

Bands

80m · 967 40m · 2,910 20m · 247 10m · 624

First attributed message: 2026-06-06
Last attributed message: 2026-10-23 16:39 UTC

Observed FT8 message patterns

Attributed sample: 4,748 messages
Active dates: 106 UTC dates
Estimated median S/N: -6 dB
Estimated 10th-90th percentile: -15 to +4.4 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 396, moderate (-15 to -9 dB) 1,328, strong (≥ -8 dB) 3,024.

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 RD7LC in decoded directed-looking exchanges:

OK5AG/P · Czech Republic ×4 R4CCE · European Russia ×4 EC5M · Spain ×3 RD9T · Asiatic Russia ×3 R4HHN · European Russia ×3 R9OON · Asiatic Russia ×3 RA3LJ · European Russia ×3 UK8FCM · Uzbekistan ×3 F1PBZ · France ×2 IT9BYL · Sicily ×2 R3HX · European Russia ×2 RW3XB · European Russia ×2

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 RD7LC

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: KN97 · 1,181 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,288 km (approx.)
Last such locator decoded: 2026-10-23 16:39 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	RD7LC S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-23 15:59	80m	-4 / +3	RV3IN	+11 / -9	4	✓ Full exchange observed
10-23 15:58	80m	-5 / +1	R7KJM	-6 / -2	4	✓ Full exchange observed
10-23 15:51	80m	-6 / -9	RA8CO	-13 / -21	3	✓ Full exchange observed
10-23 15:50	80m	-6 / -2	UB4CLH	-22 / -7	3	✓ Full exchange observed
10-23 15:48	80m	-8 / -	RU6LC	- / -8	4	✓ Closing fragment
10-22 04:17	40m	+7 / -	CM7DJG	- / -18	2	Partial capture
10-22 04:15	40m	+5 / -11	EC3A	-6 / -12	4	✓ Full exchange observed
10-22 04:14	40m	+10 / -	R6FML	- / -15	2	Partial capture
10-22 04:11	40m	+11 / -	PY2GZ	- / -15	3	Partial capture
10-22 04:09	40m	+12 / -	HA6WT	- / -6	2	✓ Closing fragment
10-22 04:08	40m	+16 / -	OM2IB	- / -1	2	✓ Closing fragment
10-22 04:06	40m	+6 / -	OK4KOP	- / 0	3	✓ Closing fragment
10-22 04:03	40m	+7 / -	C5R	- / -15	3	✓ Closing fragment
10-21 17:09	80m	-12 / -5	9A3TGT	+10 / -9	6	✓ Full exchange observed
10-21 17:06	80m	-8 / -	UA4CC	- / -1	2	✓ Closing fragment
10-21 17:03	80m	-6 / +5	OM2IB	+16 / -6	4	✓ Full exchange observed
10-21 16:56	80m	-12 / -	R8CIS	- / -14	2	✓ Closing fragment
10-21 16:53	80m	-10 / -1	SQ2BXI	-7 / -16	5	✓ Full exchange observed
10-21 16:48	80m	-11 / -	JA8GWA	- / -14	3	✓ Closing fragment
10-21 16:45	80m	-14 / -	JR0JVF	- / -16	4	✓ Closing fragment
10-21 16:44	80m	-12 / -2	EW6CY	-13 / -10	4	✓ Full exchange observed
10-21 16:42	80m	-7 / -	RA2FU	-13 / -14	3	✓ Closing observed
10-21 16:39	80m	-4 / -	RA9CMO	- / -5	2	Partial capture
10-21 16:38	80m	-6 / +3	RA7M	+2 / +4	4	✓ Full exchange observed
10-21 16:37	80m	- / -	DL9KM	-16 / -	4	Partial capture
10-21 16:36	80m	-6 / -	RO3ZW	-4 / -1	3	✓ Closing observed
10-21 14:05	40m	-4 / -	UK8FCM	- / -3	2	✓ Closing fragment
10-21 14:01	40m	-1 / -	3D2HM	- / -18	7	✓ Closing fragment
10-20 16:01	40m	-2 / -	A41KB	- / -8	2	✓ Closing fragment
10-20 15:58	40m	0 / -	R9OON	- / -14	2	✓ Closing fragment
10-20 15:53	40m	- / -5	G4XEE	+5 / -	4	✓ Closing fragment
10-20 15:48	40m	-3 / -3	R3PCB	-8 / 0	4	✓ Full exchange observed
10-20 15:47	40m	-4 / -	UA3ADE	+4 / -7	3	✓ Closing observed
10-20 15:44	40m	- / -	G1PZS	-8 / -	2	Partial capture
10-20 15:41	40m	+4 / -2	LZ2WP	+10 / -2	4	✓ Full exchange observed
10-18 16:21	80m	-16 / -	RD9T	- / -6	2	✓ Closing fragment
10-18 16:20	80m	-18 / -	R6ZB	- / +2	2	✓ Closing fragment
10-18 16:19	80m	-17 / +10	YO3OBB	+2 / -5	4	✓ Full exchange observed
10-18 16:14	80m	- / -6	RD9T	-18 / -	2	Partial capture
10-18 09:12	10m	- / -15	CR7BUJ	-18 / -	2	✓ Closing fragment
10-17 16:12	80m	-8 / -	R9SS	- / +1	3	Partial capture
10-17 16:11	80m	-8 / -	IZ8FMH	- / -15	2	✓ Closing fragment
10-17 16:10	80m	-7 / -	UA4AFY	- / -13	2	✓ Closing fragment
10-17 16:08	80m	-15 / -12	UA9LAO	-3 / -1	3	Partial capture
10-17 16:06	80m	-14 / -	R2ZJJ	-13 / -1	4	✓ Full exchange observed
10-17 16:05	80m	- / -	DL9KM	-7 / -	7	Partial capture
10-17 16:04	80m	-18 / -	R3LDQ	0 / -7	3	✓ Closing observed
10-17 15:58	80m	-11 / -	UA9CMR	- / -8	2	✓ Closing fragment
10-17 15:56	80m	-9 / +5	RU3T	+9 / +2	5	✓ Full exchange observed
10-17 15:53	80m	-9 / +7	RV3X	-7 / +1	4	✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
155815  -5 2246  RD7LC R7KJM R+01
155830  -4 2246  R7KJM RD7LC RR73
155845  -7 2246  RD7LC R7KJM 73
155945  -6 2246  RV3IN RD7LC -09
160000  +8  644  RD7LC RV3IN R+03
160015  -3 2246  RV3IN RD7LC RR73
160030 +14  644  RD7LC RV3IN 73
160115  -9 2246  CQ RD7LC KN97 (x2)
160230  -3 2268  A71JJ RD7LC -17
160430  +2  916  RD7LC SP0YAGI R-01
161415  -5 1029  R0XAJ/1 RD7LC -18
163815  -8 2515  RD7LC DK1VS JN49
163830  -2 2514  E70SZ RD7LC -12
163900  -3 2514  CQ RD7LC KN97

40m

UTC    dB Audio  Message
041145 +12 2737  PY2GZ RD7LC -15 (x3)
041315 +13 2737  CQ RD7LC KN97 (x2)
041415 +10 2737  R6FML RD7LC -15 (x2)
041530  +9 2737  CQ RD7LC KN97
041545  -8 1946  RD7LC EC3A -11
041600  +6 2737  EC3A RD7LC R-12
041615  -4 1946  RD7LC EC3A RR73
041630  +4 2737  EC3A RD7LC 73
041700  +7 2737  CM7DJG RD7LC -18 (x2)
145815  -6 2580  BI1TRT RD7LC -16

10m

UTC    dB Audio  Message
090415 -16 2260  VU2DED RD7LC -14 (x2)
090545 -13 2260  CQ RD7LC KN97
090615 -14 2260  <...> RD7LC -15
090715 -20 2260  CQ RD7LC KN97
090800  -7 2445  RD7LC F4LZZ R-17
090815 -20 2260  F4LZZ RD7LC RR73
090830 -12 2446  RD7LC F4LZZ 73
131045 -11  666  RD7LC AO25FDM R-01
105430 -12 2163  RD7LC 9K2GR R-03
074630  -5 1252  RD7LC II7MGXX +19
075130  +1 1252  RD7LC RR73; SP3MHG <...> -08
132615 -18 2133  RD7LC 5Z4RS R-01
091230 -17 1184  RD7LC CR7BUJ R-15 (x2)

60m

UTC    dB Audio  Message
160000  -1 1345  RD7LC DL0IPA R+10

20m

UTC    dB Audio  Message
134330 +10 2626  <...> RD7LC -17 (x4)
134530 +16 2626  <AO90A> RD7LC -13 (x4)
135000 +10 2364  CQ RD7LC KN97
135030  +6 2364  BI4MJX RD7LC -19 (x2)
135130  +9 2364  2E0MBH RD7LC -16
135200  +8 2364  CQ RD7LC KN97
135230 +12 2364  <AO90A> RD7LC -16 (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.

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