RW4CB — 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: LO12

Receiver-side FT8 activity involving RW4CB, decoded by SO8OO in southeastern Poland. 731 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, 10m, across 32 UTC dates in the available aggregate history. Observed between 2026-06-09 and 2026-10-15.

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 731 FT8 messages attributed to RW4CB as the transmitting token by decoded message structure across 32 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (41%), followed by 20 m (22%) and 40 m (19%). Most decodes (72%) fell within the six-hour window 14:00-20:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (63%); the estimated median was -5.1 dB.

Overview

731

Messages attributed

UTC dates decoded

102

Active 15-min windows

-5.1 dB

Estimated median S/N

Bands

160m · 119 80m · 299 40m · 138 20m · 159 10m · 16

First attributed message: 2026-06-09
Last attributed message: 2026-10-15 19:00 UTC

Observed FT8 message patterns

Attributed sample: 731 messages
Active dates: 32 UTC dates
Estimated median S/N: -5.1 dB
Estimated 10th-90th percentile: -16 to +6 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 87, moderate (-15 to -9 dB) 180, strong (≥ -8 dB) 464.

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 RW4CB in decoded directed-looking exchanges:

DO8JB · Fed. Rep. of Germany ×3 RA3DAD · European Russia ×2 UB6OAJ · European Russia ×2 RC6BB · European Russia ×2 R2BPS · European Russia ×2 R4DD · European Russia ×2 RW4F · European Russia ×2 HG1DRC · Hungary R6TA · European Russia YT2DZB · Serbia 9A5TW · Croatia E77EA · Bosnia-Herzegovina

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 RW4CB

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: LO12 · 112 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,499 km (approx.)
Last such locator decoded: 2026-10-15 18:19 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	RW4CB S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-15 18:53	80m	-5 / -2	RU3FM	-2 / -1	6	✓ Full exchange observed
10-15 18:53	80m	- / -10	SQ2BXI	-4 / -	2	✓ Closing fragment
10-15 18:50	80m	-1 / -17	HB3YOY	-4 / -22	6	✓ Full exchange observed
10-15 18:48	80m	-2 / -	RW9MZ	- / -13	2	✓ Closing fragment
10-15 18:46	80m	+7 / -	JE2LPC	- / -12	2	✓ Closing fragment
10-15 18:45	80m	-10 / -	LA2DMA	- / -15	2	Partial capture
10-15 18:44	80m	+4 / -	DJ3HW	+10 / -	2	✓ Closing observed
10-15 18:42	80m	0 / -	R6AR	-2 / -6	3	✓ Closing observed
10-15 18:35	160m	-16 / -	RU3DK	- / -5	2	✓ Closing fragment
10-15 18:32	160m	-23 / -9	E77EA	+8 / -	3	✓ Closing observed
10-15 18:24	160m	-17 / -4	SP3BPU	+12 / -	3	✓ Closing observed
10-15 18:21	160m	-18 / -9	RW6MZ	-16 / -12	3	✓ Full exchange observed
10-15 18:20	160m	-14 / -2	RA6ABO	-5 / 0	3	✓ Full exchange observed
10-15 18:18	160m	-14 / -	R6DAZ	- / -7	2	Partial capture
10-15 18:17	160m	- / -	HA5CPN	-20 / -	2	Partial capture
10-15 18:12	160m	-19 / -	RA4CFX	-11 / 0	2	✓ Closing observed
10-15 18:10	160m	-20 / -	RA4CX	- / +3	2	✓ Closing fragment
10-15 18:08	160m	-20 / +7	R9FAI	-24 / -3	2	Partial capture
10-11 19:49	80m	-9 / -13	E70SZ	+5 / -	6	✓ Closing observed
10-11 19:46	80m	- / +10	RV3X	+2 / -	2	✓ Closing fragment
10-11 19:42	80m	- / -8	RX7KIR	-2 / -	4	✓ Closing fragment
10-11 19:39	80m	-7 / -13	T77R	-2 / -19	5	Partial capture
10-11 19:37	80m	-8 / +7	OH2BVT	-1 / -	3	✓ Closing observed
10-11 19:32	80m	-6 / -15	DO2SK	+6 / -	3	✓ Closing observed
10-11 19:25	80m	-13 / -	SP4MPB	- / -15	2	✓ Closing fragment
10-11 19:21	80m	-1 / -9	SP7OK	+16 / -14	3	✓ Full exchange observed
10-11 19:18	160m	- / -	DL4FBN	-17 / -	3	Partial capture
10-11 19:14	160m	-13 / -	UA4CKN	- / -4	3	✓ Closing fragment
10-11 19:13	160m	- / -9	DK7ZT	-2 / -	6	Partial capture
10-11 19:11	160m	-12 / -	HA8AR	+9 / -24	3	✓ Closing observed
10-11 19:09	160m	-15 / -4	HA8BT	+8 / -10	4	✓ Full exchange observed
10-11 19:03	160m	- / -11	DK7ZT	-2 / -	2	Partial capture
10-11 19:03	160m	-18 / -	RV6AVU	- / -22	2	✓ Closing fragment
10-11 19:01	160m	- / -5	RA3DAD	-12 / -	3	✓ Closing fragment
10-11 18:58	160m	-14 / -	LY8O	- / -6	2	Partial capture
10-11 18:54	160m	-18 / -16	SQ9BC	+8 / -12	4	✓ Full exchange observed
10-08 17:57	160m	-10 / -1	R3BHK	-12 / -5	2	Partial capture
10-08 17:54	160m	-8 / -8	F4FTV	-7 / -15	5	✓ Full exchange observed
10-08 17:52	160m	-13 / -	RC9WC	- / -7	2	✓ Closing fragment
10-08 17:51	160m	-10 / -	EU8N	- / -20	2	✓ Closing fragment
10-08 17:49	160m	-7 / -	R3RB	- / -13	2	✓ Closing fragment
10-08 17:48	160m	-9 / +1	RG7O	-12 / -8	4	✓ Full exchange observed
10-08 17:46	160m	-14 / -	RA3RGQ	- / -	2	✓ Closing fragment
10-08 17:43	80m	- / -	DK8HC	-7 / -	5	Partial capture
10-08 17:41	80m	-4 / 0	UB3AMO	-15 / -9	3	✓ Full exchange observed
10-08 17:38	80m	+1 / -	R2UC	- / -4	2	✓ Closing fragment
10-08 17:35	80m	+2 / +2	RA1QCX	-9 / -5	6	✓ Full exchange observed
10-08 17:32	80m	-2 / -2	LZ1SAD	+2 / -9	6	✓ Full exchange observed
10-08 17:32	80m	- / -	OH3GBW	+1 / -	3	Partial capture
10-08 17:31	80m	- / -	RA1QCX	-8 / -	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
185030  -2 1525  RW4CB HB3YOY R-17
185045  -2 1526  HB3YOY RW4CB RR73
185100  -7 1525  RW4CB HB3YOY R-17 (x3)
185300  -3  351  RW4CB SQ2BXI R-10 (x2)
185330  -1 2230  RW4CB RU3FM KO94 (x2)
185445  -6 2230  RU3FM RW4CB -01
185500  +0 2230  RW4CB RU3FM R-02
185515  -4 2231  RU3FM RW4CB RR73
185530  -5 2230  RW4CB RU3FM 73
185615  +3 2760  UA0LQE RW4CB RR73
190045  -7 1454  SM4UPU RW4CB -10

160m

UTC    dB Audio  Message
182130 -16 1314  RW4CB RW6MZ R-09
182145 -20 1476  RW6MZ RW4CB RR73
182215 -20 1476  RL6ZK RW4CB -05
182415 +12 2414  RW4CB SP3BPU R-04
182430 -17 1476  SP3BPU RW4CB RR73
182445 +11 2414  RW4CB SP3BPU 73
182930 -14 1476  OM2WQ RW4CB -13
183215  +8 1702  RW4CB E77EA R-09
183230 -23 1476  E77EA RW4CB RR73
183245  +9 1702  RW4CB E77EA 73
183345 -21 1476  EU2F RW4CB -12
183500 -17 1476  RU3DK RW4CB -05
183600 -19 1476  SP3HLM RW4CB -12
183630 -14 1476  RU3DK RW4CB RR73
183730 -21 1476  R5WW RW4CB +00

40m

UTC    dB Audio  Message
044000  -9  877  SQ9SET RW4CB -12
044345 -11 2022  R4HOH RW4CB R-12 (x2)
044730 -10 1991  HA1MHC RW4CB -19 (x2)
044830  -8  878  SQ9SET RW4CB -18 (x2)
045030 -16 1668  RU6UR RW4CB RR73
131200 -10 1701  RW4CB SP7MOC R-08 (x2)
132315  +3  642  RW4CB OM5ALL R-11
132330 -11  641  OM5ALL RW4CB RR73
132345  +5  642  RW4CB OM5ALL 73
132945 -10  778  YB3HQM RW4CB -23
133300 -11  469  BG2LZP RW4CB -22

20m

UTC    dB Audio  Message
130445  -1 1758  VK5AIB RW4CB RR73
130615  +4 1758  BH5HIE RW4CB -22 (x2)
130800  +6 1758  JG5VFK RW4CB -16
131000  -1 1758  BG7LMW RW4CB RR73
131100  -1 1758  UB0SMX/P RW4CB -18
131130  -2 1758  BG5BNW RW4CB -15 (x2)
131230  -5 1758  UB0SMX/P RW4CB RR73 (x2)
131600  -3 1758  LU9ET RW4CB RR73
131630  -7 1758  LU9XJR RW4CB -18 (x2)
131930  +1 1757  BH8QWR RW4CB -11
132315  -2 1757  BG7ZHS RW4CB RR73

10m

UTC    dB Audio  Message
084830 -21 1201  HG1DRC RW4CB RR73
085045 -12 2562  DN9PMH RW4CB -15
085145 -19 2068  VK3OE RW4CB -15 (x2)
085715 -17 1595  HZ1RSM RW4CB -18
090400 -20 1373  HB9RLZ RW4CB -10
090515  -7 2744  BA5AW RW4CB -13
090745 -17 1113  CT2IBL RW4CB -18
090915 -19 1267  F4NJZ RW4CB -12 (x2)
091100 -18 1786  AO2026FM RW4CB -06
091145 -10 1787  RW4CB AO2026FM R+19 (x2)
091945 -17 2207  YT2DZB RW4CB -06 (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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