RG4H — 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: LO53

Receiver-side FT8 activity involving RG4H, decoded by SO8OO in southeastern Poland. 105 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 20 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-10-14.

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 105 FT8 messages attributed to RG4H as the transmitting token by decoded message structure across 20 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (61%), followed by 80 m (22%) and 40 m (17%). Most decodes (68%) fell within the six-hour window 13:00-19:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -12 dB.

Overview

105

Messages attributed

UTC dates decoded

Active 15-min windows

-12 dB

Estimated median S/N

Bands

80m · 23 40m · 18 20m · 64

First attributed message: 2026-06-08
Last attributed message: 2026-10-14 15:48 UTC

Observed FT8 message patterns

Attributed sample: 105 messages
Active dates: 20 UTC dates
Estimated median S/N: -12 dB
Estimated 10th-90th percentile: -21 to 0 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 32, moderate (-15 to -9 dB) 39, strong (≥ -8 dB) 34.

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 RG4H in decoded directed-looking exchanges:

EU6UE · Belarus ×2 7Z1DH · Saudi Arabia DM5KM · Fed. Rep. of Germany F4GRW · France R50RKZ · European Russia R1QF/P · European Russia R2GBR · European Russia R3DID · European Russia R3DPZ · European Russia R3MEA · European Russia R3TAW · European Russia R5ZQ · 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 RG4H

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: LO53 · 58 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 2,036 km (approx.)
Last such locator decoded: 2026-10-14 15:48 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	RG4H S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-22 13:13	40m	- / -8	RW7B	-11 / -	4	✓ Closing fragment
10-18 04:44	40m	- / -8	R6DVS	-10 / -	3	✓ Closing fragment
10-17 16:01	40m	- / -8	R5CB	-10 / -	2	Partial capture
10-17 15:53	40m	- / -24	RA3ZUJ	-2 / -	2	✓ Closing fragment
10-15 13:55	40m	- / -	RG6OR	-14 / -	3	Partial capture
10-15 13:53	40m	- / -10	R3DPZ	-13 / -	2	✓ Closing fragment
10-13 14:50	40m	- / -4	R8CKV	-8 / -	2	✓ Closing fragment
10-12 15:17	40m	- / -1	R3MEA	-12 / -	2	✓ Closing fragment
10-11 15:06	40m	- / -22	RA6AR	-8 / -	2	Partial capture
10-11 14:25	40m	- / -11	RZ3DAB	-8 / -	2	Partial capture
10-05 14:10	40m	- / -8	R5ZQ	-4 / -	2	✓ Closing fragment
10-04 16:19	40m	- / -7	EU6UE	-6 / -	3	✓ Closing fragment
10-03 05:32	40m	- / -14	R80SAA	-5 / -	3	✓ Closing fragment
10-02 15:46	80m	- / -8	R4HGK	-12 / -	4	✓ Closing fragment
10-02 15:43	80m	- / +5	R4HEA	-10 / -	2	✓ Closing fragment
10-02 14:19	40m	- / -10	RU6FS	-8 / -	2	✓ Closing fragment
09-30 13:15	10m	- / -11	7Z1DH	-13 / -	4	✓ Closing fragment
09-29 16:17	80m	-24 / +3	OH5BM	+5 / -8	3	✓ Full exchange observed
09-29 16:04	80m	- / 0	UA3IDQ	-2 / -	2	✓ Closing fragment
09-29 15:13	40m	- / -14	R6ODX	+6 / -	2	Partial capture
09-28 15:12	40m	- / -13	RA3PS	-13 / -	3	✓ Closing fragment
09-16 16:15	40m	- / -8	R3PMI	-7 / -	4	Partial capture
09-16 14:31	40m	- / -10	RV5K	-10 / -	2	✓ Closing fragment
09-14 15:52	40m	-18 / -7	R3BIS	-8 / -21	2	Partial capture
09-14 15:49	40m	- / -13	R1QF/P	-8 / -	2	✓ Closing fragment
09-13 15:48	80m	- / -8	R2AVW	+2 / -	2	✓ Closing fragment
08-23 17:18	80m	-15 / -	RQ3D	- / -	3	Partial capture
08-23 17:16	80m	-5 / +2	UC1Q	-10 / +3	5	✓ Full exchange observed
08-23 17:07	40m	-2 / -	R3PMY	- / -	2	Partial capture
08-21 15:57	40m	-16 / -12	UB4HVA	-20 / -8	6	✓ Full exchange observed
08-21 15:54	40m	-21 / -4	RA3M	-8 / +6	3	✓ Full exchange observed
08-21 15:50	40m	- / -7	UB3LBU	-5 / -	3	✓ Closing fragment
08-21 15:46	40m	- / -22	R4HNW	-8 / -	2	Partial capture
08-21 15:10	40m	- / -	RA1TR	-15 / -	2	✓ Closing fragment
08-21 15:04	40m	- / -10	RK3AW	-17 / -	3	✓ Closing fragment
08-21 14:38	40m	-19 / -	YD7HAS	- / 0	2	Partial capture
08-17 13:00	20m	-18 / -	RK3SAI	- / -	2	Partial capture
08-17 12:23	20m	- / -5	F4GRW	+8 / -	2	✓ Closing fragment
08-17 12:11	20m	- / -7	DM5KM	-12 / -	2	Partial capture
08-16 10:48	20m	- / -	R50RKZ	-2 / -	2	✓ Closing fragment
08-16 10:47	20m	- / -	EB3JT	-7 / -	7	Partial capture
08-07 19:00	80m	- / -5	R2GFD	-11 / -	2	✓ Closing fragment
08-07 18:53	80m	-24 / -8	RC6BB	-14 / -	4	✓ Closing observed
08-07 18:51	80m	-18 / -13	HA7XL	+16 / -2	10	✓ Full exchange observed
08-07 18:13	80m	-7 / +5	R4FED	-7 / -2	5	✓ Full exchange observed
08-07 15:57	40m	- / 0	RA3ZOM	-14 / -	2	✓ Closing fragment
08-07 11:28	20m	-15 / -	NF3R	- / -	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
151515 -10 2450  RG4H UK8FCM -12
155300  +2 1307  RG4H RA3ZUJ -24 (x2)
155745  -8 2134  RG4H R7ZY -09
160115 -11  803  RG4H R5CB -08 (x2)
044230 -17  826  RG4H UA3RA RR73
044445  -8 1360  RG4H R6DVS -08 (x3)
145500 -22 1783  RG4H R2DAY -09
131345 -12  837  RG4H RW7B -08 (x4)

80m

UTC    dB Audio  Message
154830  +4  659  RG4H R2AVW -08 (x2)
160415  -3 1173  RG4H UA3IDQ +00 (x2)
161700  +4 1703  RG4H OH5BM +03
161715 -24 1708  OH5BM RG4H R-08
161730  +6 1703  RG4H OH5BM RR73
162115 -11  750  RC2SD RG4H LO53
154315  -9 1501  RG4H R4HEA +05 (x2)
154630 -15  967  RG4H R4HGK -08 (x4)
154845 -14 1193  RA4CFX RG4H LO53

10m

UTC    dB Audio  Message
131500 -15 2094  RG4H 7Z1DH -11 (x4)

20m

UTC    dB Audio  Message
104730  -3 2245  RG4H EB3JT JN01
104800  +2  927  RG4H R50RKZ +12
104800  -7 2245  RG4H EB3JT JN01
104830  -7  927  RG4H R50RKZ RR73
104830  -9 2245  RG4H EB3JT JN01 (x4)
121130 -13 2008  RG4H DM5KM -07 (x3)
122315  +8 2043  RG4H F4GRW -05 (x2)
130015 -19 1967  RK3SAI RG4H LO53 (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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