JF3BHV — 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: Japan Most frequent locator attributed to this token: PM74

Receiver-side FT8 activity involving JF3BHV, decoded by SO8OO in southeastern Poland. 69 FT8 messages attributed to this token as transmitter, on 20m, across 2 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-06-19.

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 69 FT8 messages attributed to JF3BHV as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (100%). In this small sample, the estimated median decoder S/N was -8 dB; no usual signal pattern is inferred.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-8 dB

Estimated median S/N

Bands

20m · 69

First attributed message: 2026-06-06
Last attributed message: 2026-06-19 13:35 UTC

Observed FT8 message patterns

Attributed sample: 69 messages
Active dates: 2 UTC dates
Estimated median S/N: -8 dB
Estimated 10th-90th percentile: -13 to -3 dB
Recurring-pattern threshold: Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 5, moderate (-15 to -9 dB) 28, strong (≥ -8 dB) 36.

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. The sample does not meet the threshold for a recurring time or signal-pattern claim (20 attributed messages, three UTC dates and five distinct 15-minute windows).

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with JF3BHV in decoded directed-looking exchanges:

Z34K · North Macedonia DJ7TO · Fed. Rep. of Germany R7DX · European Russia 9J2FI · Zambia

Most frequent locator attributed to JF3BHV

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: PM74 · 67 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 8,565 km (approx.)
Last such locator decoded: 2026-06-19 13:07 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	JF3BHV S/N	Counterpart	Counterpart S/N	Msgs	Capture
11-07 13:16	40m	- / -	RN6HK	-8 / -	5	Partial capture
10-31 13:36	80m	- / -	UA3D	-5 / -	2	Partial capture
10-31 13:28	80m	- / -	RD5D	-4 / -	8	Partial capture
10-31 13:28	80m	- / -	UA3D	-15 / -	5	Partial capture
10-26 13:15	40m	- / -7	R7DX	-18 / -	2	✓ Closing fragment
10-18 12:55	40m	- / -	R2AL	-5 / -	2	Partial capture
10-18 12:27	40m	- / -	R2AL	-5 / -	3	Partial capture
10-07 13:30	40m	- / -	UA4FKT	-20 / -	2	Partial capture
09-03 20:49	80m	- / -	RO2X	+11 / -	10	Partial capture
08-28 11:36	10m	- / -7	CS8ABF	-14 / -	2	Partial capture
08-28 09:47	10m	- / -15	Z34K	+10 / -	3	✓ Closing fragment
08-16 12:56	20m	- / -	OE7CMI	-12 / -	6	Partial capture
08-13 21:13	40m	- / -	ON7NQ	+1 / -	4	Partial capture
08-13 20:52	80m	- / -14	9J2FI	-14 / -	2	✓ Closing fragment
08-10 07:51	20m	- / -17	DJ7TO	+10 / -	2	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
133000 -19 1636  JF3BHV UA4FKT LO23 (x2)
122430  -5  434  JF3BHV RA1N KP71
122700  -5  967  JF3BHV R2AL KO85 (x5)
131530 -18 1476  JF3BHV R7DX R-07 (x2)
131630  -7 2443  JF3BHV RN6HK LN14 (x5)

80m

UTC    dB Audio  Message
132815  +1 1003  JF3BHV RD5D KO95
132845 -15 2201  JF3BHV UA3D KO95
132845  -1 1003  JF3BHV RD5D KO95
132915 -13 2201  JF3BHV UA3D KO95 (x2)
132945 -12 1003  JF3BHV RD5D KO95
133015 -16 2201  JF3BHV UA3D KO95
133015  -4 1003  JF3BHV RD5D KO95 (x6)
133645  -7 2201  JF3BHV UA3D KO95 (x2)

10m

UTC    dB Audio  Message
094700 +12  556  JF3BHV Z34K -15 (x3)
113615 -12 1078  JF3BHV CS8ABF -07 (x2)

20m

UTC    dB Audio  Message
075145 +10 2647  JF3BHV DJ7TO -17 (x2)
125600 -15 1440  JF3BHV OE7CMI JN57 (x6)
132700  -2 2920  JF3BHV SP6JIU -12
132700  -6 1558  JF3BHV RA3ZH KO81

CW

No CW receptions recorded for this callsign in the last 30 days.

Explore CW reception at SO8OO

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