SM5KNV — 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: Sweden Most frequent locator attributed to this token: JO88

Receiver-side FT8 activity involving SM5KNV, decoded by SO8OO in southeastern Poland. 1,072 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, across 27 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-11-04.

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 1,072 FT8 messages attributed to SM5KNV as the transmitting token by decoded message structure across 27 UTC dates in the available aggregate history. The largest monitored-band total was 160 m (49%), followed by 80 m (26%) and 40 m (16%). Most decodes (94%) fell within the six-hour window 15:00-21:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (94%); the estimated median was +3.7 dB.

Overview

1,072

Messages attributed

UTC dates decoded

Active 15-min windows

+3.7 dB

Estimated median S/N

Bands

160m · 526 80m · 280 60m · 99 40m · 167

First attributed message: 2026-06-06
Last attributed message: 2026-11-04 21:16 UTC

Observed FT8 message patterns

Attributed sample: 1,072 messages
Active dates: 27 UTC dates
Estimated median S/N: +3.7 dB
Estimated 10th-90th percentile: -6 to +12 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 12, moderate (-15 to -9 dB) 51, strong (≥ -8 dB) 1,009.

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 SM5KNV in decoded directed-looking exchanges:

R2EA/P · European Russia ×3 SP9DGO · Poland ×3 UA3FH · European Russia ×3 DM2PE · Fed. Rep. of Germany ×2 R3GO · European Russia ×2 SN40KZE · Poland ×2 SP9SOS · Poland ×2 F1IQH · France ×2 PA3FUJ · Netherlands ×2 PC9N · Netherlands ×2 UY5BF · Ukraine ×2 DN9OPA · Fed. Rep. of Germany

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 SM5KNV

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: JO88 · 407 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,001 km (approx.)
Last such locator decoded: 2026-11-04 21:15 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	SM5KNV S/N	Counterpart	Counterpart S/N	Msgs	Capture
11-04 21:16	160m	+8 / -	SP2GR	- / -6	2	✓ Closing fragment
11-04 21:13	160m	+12 / -	SV1VN	-18 / -19	4	✓ Closing observed
11-04 21:12	160m	+12 / +3	OZ5AGJ	-7 / -	5	✓ Full exchange observed
11-04 21:11	160m	+8 / -6	SP9HAB	-8 / -19	4	✓ Full exchange observed
11-04 20:49	160m	+6 / -	EC4TR	- / +4	2	✓ Closing fragment
11-04 20:48	160m	+9 / -1	IK2TDM	+6 / -	4	✓ Full exchange observed
11-04 20:46	160m	0 / -9	RK3BM	-12 / +8	5	✓ Full exchange observed
11-04 20:45	160m	+7 / +1	DL6II	-19 / +9	4	✓ Full exchange observed
11-02 05:30	60m	-1 / -23	OH1LA	-10 / -17	7	✓ Full exchange observed
11-02 05:30	60m	+4 / -15	PA4PA	+8 / -	8	✓ Full exchange observed
11-01 20:29	60m	-13 / -11	M0PEL	-7 / +6	4	✓ Full exchange observed
11-01 20:27	60m	-14 / -17	PA3GDL	+1 / -16	5	✓ Full exchange observed
11-01 20:27	60m	- / -5	IT9VCE	-8 / -	2	✓ Closing fragment
11-01 20:23	60m	-15 / -16	DL4YDR	-3 / -	4	✓ Closing observed
11-01 20:20	60m	-17 / +4	OE8PIT	+18 / -	4	✓ Full exchange observed
11-01 20:20	60m	-16 / -5	DJ2QV	-3 / -	7	✓ Full exchange observed
10-24 19:40	160m	+2 / +7	LY2CK	-8 / +9	5	✓ Full exchange observed
10-24 19:39	160m	- / -	9A2VX	-15 / -	5	Partial capture
10-24 19:37	160m	+4 / +2	R5AV	-14 / -	4	✓ Full exchange observed
10-24 19:37	160m	+2 / -	RW6A	-24 / -24	3	✓ Closing observed
10-24 19:36	160m	+6 / -	R6JAG	- / -11	2	✓ Closing fragment
10-24 19:34	160m	+2 / -7	R2EA/P	-10 / -	3	✓ Full exchange observed
10-24 19:33	160m	-2 / -	UB3IBG	-15 / -	4	✓ Full exchange observed
10-24 16:54	60m	-8 / -	LA5WJA	- / -	2	✓ Closing fragment
10-24 16:53	60m	-5 / 0	IK5ZPV	-8 / -1	4	✓ Full exchange observed
10-24 16:51	60m	-3 / -10	F4IRP	-18 / -15	4	✓ Full exchange observed
10-24 16:50	60m	-3 / -13	DL1IP	-6 / +4	5	✓ Full exchange observed
10-24 16:48	60m	0 / -	DK3JW	+6 / -5	4	✓ Closing observed
10-24 16:48	60m	0 / +8	PA3FUJ	-10 / +1	6	✓ Full exchange observed
10-24 16:43	160m	+3 / -	RZ0SW	- / +1	2	Partial capture
10-24 16:41	160m	+4 / -15	RT6Z	-12 / -6	4	✓ Full exchange observed
10-24 16:40	160m	0 / 0	R1BLO/P	-19 / +8	4	✓ Full exchange observed
10-24 16:39	160m	+2 / -	RA9YTI	-24 / -	3	✓ Closing observed
10-24 16:37	160m	-1 / -	R9YCA	- / -11	2	✓ Closing fragment
10-24 16:35	160m	+4 / -	DK2OJ	-6 / -20	4	✓ Full exchange observed
10-24 16:32	160m	+10 / -14	R6ZEJ	-11 / -11	5	✓ Full exchange observed
10-24 16:31	160m	+8 / -	DG3TF	-10 / -	5	✓ Closing observed
10-24 16:30	160m	+8 / -3	SP9DGO	+10 / +5	5	✓ Full exchange observed
10-24 16:29	160m	+6 / -	PA1RGX	- / -24	2	✓ Closing fragment
10-24 16:28	160m	+8 / -	R8CCF	- / -16	2	✓ Closing fragment
10-24 15:55	80m	-4 / -	RK3YWS/P	-4 / +8	3	✓ Closing observed
10-24 15:51	80m	-2 / -2	RZ3ZY	-15 / +10	5	✓ Full exchange observed
10-24 15:49	80m	-1 / -	UB3BDB	- / -11	3	✓ Closing fragment
10-24 15:45	80m	0 / -20	R7IW	-16 / +9	4	✓ Full exchange observed
10-24 15:45	80m	+3 / -15	UA4AGU	-9 / -9	4	✓ Full exchange observed
10-24 15:43	80m	+4 / -	UN7ED	-18 / +5	3	✓ Closing observed
10-24 15:41	80m	-2 / -	RW0AE	- / -	3	✓ Closing fragment
10-24 15:41	80m	+2 / -	DA6NEL	+11 / -	8	✓ Closing observed
10-24 15:39	80m	-2 / -	JL1CNY	- / -7	4	✓ Closing fragment
10-21 16:52	40m	-1 / -	UA4POO	-13 / -	3	✓ Closing observed

Recent FT8 messages decoded at SO8OO

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

160m

UTC    dB Audio  Message
211215 +11  946  CQ SM5KNV JO88
211230  -6  946  SM5KNV OZ5AGJ JO47
211230  +8 2655  SM5KNV HG9FS KN08
211245 +14  946  OZ5AGJ SM5KNV +18
211300 -18 2693  SM5KNV SV1VN KM17
211300  -5  946  SM5KNV OZ5AGJ R+03
211315 +10  946  OZ5AGJ SM5KNV RR73
211330  -9  946  SM5KNV OZ5AGJ 73
211345 +13  946  RV6AVU SM5KNV -01
211415 +11  946  SV1VN SM5KNV -19 (x3)
211545 +11  946  CQ SM5KNV JO88
211615 +11  946  SP2GR SM5KNV -06 (x2)

80m

UTC    dB Audio  Message
155015  -5  981  UB3BDB SM5KNV -11 (x2)
155115  -2  981  CQ SM5KNV JO88
155130 -19 1609  SM5KNV RZ3ZY KO90
155145  +1  981  RZ3ZY SM5KNV +10
155200 -11 1609  SM5KNV RZ3ZY R-02
155215  -6  981  RZ3ZY SM5KNV RR73
155230 -14 1609  SM5KNV RZ3ZY 73
155400  -4  980  SP/WE9G SM5KNV +17
155530  -4  981  RK3YWS/P SM5KNV +08 (x2)
155615  -4 1806  SM5KNV RK3YWS/P 73
053830  -9  612  CQ SM5KNV JO88 (x3)

60m

UTC    dB Audio  Message
053045 -15 2024  SM5KNV OH1LA KP01
053045  +3 1023  SM5KNV I1WQR JN44
053100  -4 1023  OH1LA SM5KNV -17
053115 +11  264  SM5KNV PA4PA JO22
053115  -7 2024  SM5KNV OH1LA KP01
053130  -3 1023  OH1LA SM5KNV -17
053145  +9  264  SM5KNV PA4PA JO22
053145  -8 2025  SM5KNV OH1LA R-23
053200  +5 1023  OH1LA SM5KNV RR73
053215  +6  264  SM5KNV PA4PA JO22
053215  -9 2025  SM5KNV OH1LA 73
053230  +6 1023  PA4PA SM5KNV +13
053245  +3  264  SM5KNV PA4PA R-15
053300  +2 1023  PA4PA SM5KNV RR73
053315  +9  264  SM5KNV PA4PA 73

40m

UTC    dB Audio  Message
164630 -11 2790  SM5KNV R3HH R+04
164645  +0  983  R3HH SM5KNV RR73 (x2)
164745  -7  983  R4HNI SM5KNV -14
164815  +5  983  CQ SM5KNV JO88
164845  -4  983  R4HNI SM5KNV RR73 (x2)
164945  -2  983  RV9UNK SM5KNV +12 (x2)
165045  +3  983  RC3LD SM5KNV -02 (x2)
165145  -2  983  CQ SM5KNV JO88
165230  -3  983  UA4POO SM5KNV +14 (x2)
165315 -13 2149  SM5KNV UA4POO 73

10m

UTC    dB Audio  Message
104945 -16 1392  SM5KNV DB4VI JN39
105015 -23 2154  SM5KNV DN9OPA 73
105215 -23 1728  SM5KNV PA0HCL +07

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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