RG4C — 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: LO21

Receiver-side FT8 activity involving RG4C, decoded by SO8OO in southeastern Poland. 27 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, across 6 UTC dates in the available aggregate history. Observed between 2026-09-04 and 2026-10-27.

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 27 FT8 messages attributed to RG4C as the transmitting token by decoded message structure across 6 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (70%), followed by 160 m (15%) and 40 m (15%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -13 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-13 dB

Estimated median S/N

Bands

160m · 4 80m · 19 40m · 4

First attributed message: 2026-09-04
Last attributed message: 2026-10-27 18:54 UTC

Observed FT8 message patterns

Attributed sample: 27 messages
Active dates: 6 UTC dates
Estimated median S/N: -13 dB
Estimated 10th-90th percentile: -21 to -6 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 9, moderate (-15 to -9 dB) 13, strong (≥ -8 dB) 5.

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 RG4C in decoded directed-looking exchanges:

RI1FJL · Franz Josef Land JA4DND · Japan JI4JKO · Japan R3LCG · European Russia R6DJR · European Russia RA1TR · European Russia RA6FSV · European Russia R2EC · European Russia R3KLE · European Russia R6ML · European Russia R9FF · European Russia RA3VX · European Russia

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 RG4C

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: LO21 · 9 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,636 km (approx.)
Last such locator decoded: 2026-09-04 20:57 UTC

Other locator fields attributed to this token: LO31 (5).

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	RG4C S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-27 18:55	40m	- / -	R2AL	+5 / -	3	Partial capture
10-27 18:54	40m	-13 / -2	JA4DND	-4 / -	3	✓ Closing observed
10-23 18:06	80m	-16 / -	RA6Z	-6 / -7	3	✓ Closing observed
10-23 18:05	80m	- / -6	R2EC	+13 / -	2	✓ Closing fragment
10-23 18:03	80m	- / -	DF1SD	+8 / -	2	Partial capture
10-23 18:03	80m	- / -15	DK7ZT	+2 / -	5	Partial capture
10-23 18:01	80m	-23 / +6	UA4FEN	-8 / -	4	✓ Closing observed
10-23 17:57	80m	- / -	R3KLE	-10 / -	5	✓ Closing fragment
10-23 17:57	80m	- / -10	UA4NCX	-14 / -	6	✓ Closing fragment
10-23 17:57	80m	- / -4	UA3VVA	+5 / -	5	✓ Closing fragment
10-23 17:57	80m	- / -10	UA6EU	-20 / -	2	✓ Closing fragment
10-23 17:53	80m	-11 / +8	R6ML	-12 / -5	4	✓ Full exchange observed
10-23 17:51	80m	- / 0	RA3VX	+2 / -	2	✓ Closing fragment
10-23 17:50	80m	- / -	UA4FKT	-2 / -	3	✓ Closing fragment
10-23 17:48	80m	- / +1	RQ3M	+12 / -	5	✓ Closing fragment
10-23 17:48	80m	-13 / -2	RT3K	-12 / -11	10	✓ Full exchange observed
10-23 17:48	80m	- / -7	RW2Z	-8 / -	3	✓ Closing fragment
10-23 17:47	80m	- / -10	RC7LX	-14 / -	2	✓ Closing fragment
10-23 17:46	80m	- / +3	UA3ON	-14 / -	2	Partial capture
10-07 16:52	40m	-24 / -7	R6DJR	-14 / -3	3	✓ Full exchange observed
10-07 16:51	40m	- / -	RM5F	-7 / -	2	Partial capture
10-07 16:50	40m	-19 / -	R3LCG	-6 / -	3	✓ Closing observed
10-07 16:48	40m	- / -12	RA1TR	-4 / -	3	✓ Closing fragment
09-24 19:26	80m	- / -	UA4FKT	+3 / -	2	Partial capture
09-24 19:18	80m	- / -7	R2SN	0 / -	6	Partial capture
09-24 19:17	80m	- / -	UA4FKT	+7 / -	3	Partial capture
09-24 19:15	80m	-11 / -	RI1FJZ	-20 / -	2	✓ Closing observed
09-24 19:10	80m	-9 / -	RI1FJZ	- / -	2	Partial capture
09-04 21:03	80m	- / -26	RM5F	+5 / -	2	Partial capture
09-04 21:03	80m	- / -14	R2EA	-2 / -	2	Partial capture
09-04 21:03	80m	- / -	R6FX	-6 / -	4	Partial capture
09-04 20:51	80m	- / -7	R4FS	-9 / -	3	Partial capture
09-04 20:51	80m	-12 / -	RI1FJL	- / -	5	Partial capture
09-04 20:43	160m	- / -5	R2EA	-8 / -	2	Partial capture
09-04 20:37	160m	-15 / -	RI1FJL	- / -	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
165130  -2  788  RG4C RM5F KO85
165130  -5 1835  RG4C R3LCG KO64
165215 -19 1619  R3LCG RG4C RR73
165230 -14 1613  RG4C R6DJR -07
165230  -9  956  RG4C R3IX KO76
165245 -24 1618  R6DJR RG4C R-03
165300 -13 1613  RG4C R6DJR RR73
185300  -9 2670  RG4C RA7Z KN98
185430 -13 2495  JA4DND RG4C LO31
185445  -4 2495  RG4C JA4DND -02 (x2)
185545  +7 1385  RG4C R2AL KO85 (x3)
190200 -10  618  RG4C JI4JKO RR73

80m

UTC    dB Audio  Message
180245 -23 1975  UA4FEN RG4C 73
180300 -24 1900  RG4C JA9RRH PM87
180300  +3 1759  RG4C DK7ZT -15
180300  +9 2679  RG4C DF1SD JN48
180330  +5 1759  RG4C DK7ZT -15
180330  +8 2679  RG4C DF1SD JN48
180400  +4 1759  RG4C DK7ZT -15 (x2)
180445 -21 1975  UA6MO RG4C -13
180500  -3 1759  RG4C DK7ZT -15
180530 +14  917  RG4C R2EC R-06
180600  -6 1974  RG4C RA6Z KN98
180600 +12  917  RG4C R2EC 73
180615 -17 1975  RA6Z RG4C -07 (x2)

160m

UTC    dB Audio  Message
202815  -5 1355  RI1FJL RG4C LO21 (x4)
204300  -9 2429  RG4C R2EA -05 (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

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