5B4AMH — 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: Cyprus

Receiver-side FT8 activity involving 5B4AMH, decoded by SO8OO in southeastern Poland. 197 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 12 UTC dates in the available aggregate history. Observed between 2026-06-25 and 2026-10-17.

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 197 FT8 messages attributed to 5B4AMH as the transmitting token by decoded message structure across 12 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (63%), followed by 20 m (37%). Most decodes (51%) fell within the six-hour window 19:00-01:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (62%); the estimated median was -5 dB.

Overview

197

Messages attributed

UTC dates decoded

Active 15-min windows

-5 dB

Estimated median S/N

Bands

40m · 125 20m · 72

First attributed message: 2026-06-25
Last attributed message: 2026-10-17 14:05 UTC

Observed FT8 message patterns

Attributed sample: 197 messages
Active dates: 12 UTC dates
Estimated median S/N: -5 dB
Estimated 10th-90th percentile: -17 to +7 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 28, moderate (-15 to -9 dB) 47, strong (≥ -8 dB) 122.

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 5B4AMH in decoded directed-looking exchanges:

CN8WK · Morocco EX8ABR · Kyrgyzstan PD1ADA · Netherlands RK6OV · European Russia 9J2FI · Zambia BI4VIP · China EA8UP · Canary Islands HB9CEV · Switzerland HB9ELE · Switzerland HC1DAZ · Ecuador HS0ZKB · Thailand IZ8PPI · Italy

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.

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	5B4AMH S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-11 13:57	40m	- / -6	Z62NS	-8 / -	2	✓ Closing fragment
10-03 17:59	40m	-3 / -	EP2AES	- / -16	3	Partial capture
10-03 17:45	40m	- / +1	4O/R2AB	+2 / -	2	Partial capture
10-03 17:44	40m	-4 / -	DA100TV	- / -3	4	Partial capture
10-03 17:22	40m	-4 / -	LX1RFJ	- / -13	2	✓ Closing fragment
10-03 17:21	40m	- / -	SP6PST	+2 / -	2	Partial capture
10-03 17:19	40m	- / -7	EA8UP	-5 / -	4	✓ Closing fragment
10-03 15:37	40m	-4 / -	Z62NS	- / 0	4	Partial capture
09-23 14:02	10m	- / -12	CN8WK	+8 / -	2	✓ Closing fragment
09-16 20:17	40m	- / -	R1BNJ	+7 / -	2	Partial capture
09-16 20:05	40m	-12 / -	KG6JDX	- / -20	5	Partial capture
09-16 20:03	40m	-13 / -	JM1DVM	- / -20	3	✓ Closing fragment
09-16 19:59	40m	-17 / -4	HB9ELE	+12 / -	5	✓ Closing observed
09-16 19:58	40m	-13 / -15	HS0ZKB	-9 / -5	4	✓ Full exchange observed
09-16 19:57	40m	-8 / -	EI8GS	- / -15	2	Partial capture
09-16 16:17	40m	-9 / -	S79/DL2SBY	- / -11	3	Partial capture
09-14 16:37	40m	-4 / -	ZS6NX	- / -18	2	Partial capture
09-11 02:08	40m	-8 / -17	PV8AJ	-14 / -11	3	✓ Full exchange observed
09-11 00:55	40m	-2 / -	J38DX	-5 / -13	5	Partial capture
09-11 00:51	40m	+2 / -	9Z4S	- / -13	7	Partial capture
09-11 00:50	40m	+8 / -	SP7NC	- / -4	2	Partial capture
09-11 00:48	40m	+5 / -	J38LD	- / -19	4	✓ Closing fragment
09-11 00:46	40m	-2 / -	9J2FI	- / -12	3	✓ Closing fragment
09-11 00:45	40m	-2 / -	RC9OC	- / -6	2	✓ Closing fragment
09-11 00:43	40m	-5 / -	KS1WK	- / -15	3	Partial capture
09-11 00:41	40m	-5 / -18	JY5IB	-18 / -14	5	✓ Full exchange observed
09-11 00:39	40m	-4 / -	EM70WWW	- / -12	4	Partial capture
09-11 00:36	40m	+2 / -	KD3DIX	- / -15	4	✓ Closing fragment
09-11 00:33	40m	+7 / -	VU2KPH	- / -19	2	✓ Closing fragment
09-11 00:30	40m	+5 / -	PV8AJ	- / -8	5	Partial capture
09-11 00:27	40m	+6 / -	BI4VIP	-14 / -2	4	✓ Closing observed
09-11 00:25	40m	0 / -	HC1DAZ	- / -14	3	✓ Closing fragment
09-11 00:20	40m	+6 / -	IZ8PPI	- / -7	7	✓ Closing fragment
09-11 00:19	40m	+6 / -	DK8HC	- / -10	3	Partial capture
09-11 00:17	40m	+8 / -	HB9CEV	- / -9	2	✓ Closing fragment
09-11 00:16	40m	+8 / -	UB3PAQ	- / -2	2	✓ Closing fragment
09-11 00:12	40m	+2 / -	OA4ENG	- / -14	7	✓ Closing fragment
09-11 00:09	40m	+5 / -	OH1ZE	- / -14	2	✓ Closing fragment
09-11 00:06	40m	+4 / -	OA4ENG	- / -15	2	Partial capture
09-11 00:05	40m	+2 / -12	MI7XHT	-7 / -15	4	✓ Full exchange observed
09-11 00:02	40m	+1 / -	VA3LG	- / -18	5	Partial capture
09-11 00:01	40m	0 / -	PV8AJ	- / -7	2	Partial capture
08-30 10:43	20m	-7 / -2	RK6OV	+8 / -	5	✓ Closing observed
08-30 10:38	20m	-8 / -	HI8J	- / -18	3	Partial capture
08-30 09:06	10m	- / -14	EX8ABR	-19 / -	2	✓ Closing fragment
08-28 14:00	20m	-7 / -	PD1ADA	-16 / -5	5	✓ Closing observed

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
172315  -4  742  LX1RFJ 5B4AMH RR73
172615 -11 1257  5B4AMH RU4SS LO36
174400  -7  741  DA100TV 5B4AMH -03 (x4)
174545  +5 1539  5B4AMH 4O/R2AB R+01 (x2)
175945  -4  741  EP2AES 5B4AMH -16 (x3)
135745  -8 1163  5B4AMH Z62NS R-06 (x2)
140445 -18 2135  DS4EJA 5B4AMH -12
140545 -18 2135  SP9NVY 5B4AMH -18

10m

UTC    dB Audio  Message
090630 -21 1376  5B4AMH EX8ABR R-14 (x2)
140245  +5 1451  5B4AMH CN8WK R-12 (x2)

20m

UTC    dB Audio  Message
140030 -18 2035  5B4AMH PD1ADA JO21
140115  -6 1529  PD1ADA 5B4AMH RR73 (x3)
140730  +4  488  C31KC 5B4AMH -11 (x2)
103815 -11  581  HI8J 5B4AMH -18 (x3)
104115  -9 1499  E75W 5B4AMH -08
104300  +8  662  5B4AMH RK6OV KN97 (x4)
104445  -7 1499  RK6OV 5B4AMH RR73

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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