SM1HEV — 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: JO97

Receiver-side FT8 activity involving SM1HEV, decoded by SO8OO in southeastern Poland. 124 FT8 messages attributed to this token as transmitter, on 160m, 60m, 40m, 20m, across 7 UTC dates in the available aggregate history. Observed between 2026-07-07 and 2026-11-02.

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 124 FT8 messages attributed to SM1HEV as the transmitting token by decoded message structure across 7 UTC dates in the available aggregate history. The largest monitored-band total was 160 m (33%), followed by 40 m (31%) and 20 m (27%). Several six-hour UTC windows tied for the largest share (90%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (94%); the estimated median was -2 dB.

Overview

124

Messages attributed

UTC dates decoded

Active 15-min windows

-2 dB

Estimated median S/N

Bands

160m · 41 60m · 11 40m · 39 20m · 33

First attributed message: 2026-07-07
Last attributed message: 2026-11-02 22:47 UTC

Observed FT8 message patterns

Attributed sample: 124 messages
Active dates: 7 UTC dates
Estimated median S/N: -2 dB
Estimated 10th-90th percentile: -8 to +2 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 0, moderate (-15 to -9 dB) 7, strong (≥ -8 dB) 117.

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 SM1HEV in decoded directed-looking exchanges:

OH3GBW · Finland ×2 HG8LXL · Hungary JA5MHD · Japan JH4HMG · Japan JR3NZC · Japan PD0LBY · Netherlands SP6FME · Poland US2YW · Ukraine DL1SRS · Fed. Rep. of Germany ER3UA · Moldova IK4CBO · Italy

Most frequent locator attributed to SM1HEV

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: JO97 · 54 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 861 km (approx.)
Last such locator decoded: 2026-11-02 22:47 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	SM1HEV S/N	Counterpart	Counterpart S/N	Msgs	Capture
11-02 22:44	160m	0 / -	6W/IK2HKT	- / -	6	Partial capture
11-02 22:26	160m	-3 / -	6W/IK2HKT	- / -	25	Partial capture
11-02 22:24	160m	-12 / -	YO1BRANCUSI	- / -	3	Partial capture
11-02 22:19	160m	-2 / -	6W/IK2HKT	- / -	5	Partial capture
09-10 21:26	40m	-3 / -	SP6FME	- / -	2	✓ Closing fragment
09-10 21:25	40m	0 / -11	JA5MHD	-2 / -16	4	✓ Full exchange observed
09-10 21:22	40m	+1 / -	DJ0MAB	+13 / -	5	Partial capture
09-10 21:20	40m	-4 / -	OH3GKA	- / +6	2	Partial capture
09-10 21:19	40m	-2 / -	HG8LXL	-13 / -	5	✓ Full exchange observed
09-10 21:18	40m	-2 / -	US2YW	- / +7	2	✓ Closing fragment
09-10 21:17	40m	0 / -	OH3GBW	- / -3	2	✓ Closing fragment
09-10 21:14	40m	-4 / -18	JH4HMG	-15 / -17	8	✓ Full exchange observed
09-10 21:13	40m	- / -15	JA2HYD	-10 / -	3	Partial capture
09-10 21:13	40m	0 / -	PD0LBY	-15 / +6	7	✓ Closing observed
09-10 21:11	40m	+4 / -24	JR3NZC	-7 / -	4	✓ Closing observed
09-10 21:10	40m	- / -	F5RRS	+8 / -	3	Partial capture
09-08 19:15	60m	-1 / -9	DL1SRS	+1 / -1	5	✓ Full exchange observed
09-08 19:13	60m	0 / 0	OH3GBW	-1 / +1	7	✓ Full exchange observed
09-08 19:13	60m	-2 / -1	IK4CBO	-2 / -	6	✓ Full exchange observed
09-08 19:10	60m	-6 / +6	ER3UA	+2 / -	7	✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

160m

UTC    dB Audio  Message
223815  -2  512  6W/IK2HKT SM1HEV JO97 (x14)
225230  +2 2275  SM1HEV OH1TSM KP11

40m

UTC    dB Audio  Message
212045  -1 2675  OH3GKA SM1HEV +06 (x2)
212200 +13 2675  SM1HEV DJ0MAB JN49 (x2)
212315  +4 2675  DJ0MAB SM1HEV +12 (x3)
212515  +1 2675  CQ DX SM1HEV JO97
212530  -3  411  SM1HEV JA5MHD -11
212545  +1 2675  JA5MHD SM1HEV R-16
212600  +0  411  SM1HEV JA5MHD RR73
212615  -1 2675  JA5MHD SM1HEV 73
212645  +3 2675  SP6FME SM1HEV +22 (x2)
212800  -3  864  SM1HEV SP3JHZ JO71

60m

UTC    dB Audio  Message
191345  -1 2550  IK4CBO SM1HEV +13
191400  +1  409  SM1HEV OH3GBW KP21
191400  +1 1688  SM1HEV IK4CBO R-01
191415  -3 2550  IK4CBO SM1HEV RR73
191430  -3  409  SM1HEV OH3GBW KP21
191430  +2 1688  SM1HEV IK4CBO 73
191445  -2 2550  OH3GBW SM1HEV +01
191500  +1  409  SM1HEV OH3GBW R+00
191515  +1 2550  OH3GBW SM1HEV RR73
191530  -6  409  SM1HEV OH3GBW 73
191530  +2 2551  SM1HEV DL1SRS JN49
191545  -2 2550  DL1SRS SM1HEV -01
191600  +4 2551  SM1HEV DL1SRS R-09
191615  +0 2550  DL1SRS SM1HEV RR73
191630  -3 2551  SM1HEV DL1SRS 73

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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