HB9BRJ — 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: Switzerland Most frequent locator attributed to this token: JN47

Receiver-side FT8 activity involving HB9BRJ, decoded by SO8OO in southeastern Poland. 52 FT8 messages attributed to this token as transmitter, on 60m, 40m, 10m, across 5 UTC dates in the available aggregate history. Observed between 2026-06-12 and 2026-10-26.

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 52 FT8 messages attributed to HB9BRJ as the transmitting token by decoded message structure across 5 UTC dates in the available aggregate history. The largest monitored-band total was 60 m (77%), followed by 40 m (19%) and 10 m (4%). Most decodes (77%) fell within the six-hour window 16:00-22:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (83%); the estimated median was -2 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-2 dB

Estimated median S/N

Bands

60m · 40 40m · 10 10m · 2

First attributed message: 2026-06-12
Last attributed message: 2026-10-26 16:19 UTC

Observed FT8 message patterns

Attributed sample: 52 messages
Active dates: 5 UTC dates
Estimated median S/N: -2 dB
Estimated 10th-90th percentile: -10 to +1 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 2, moderate (-15 to -9 dB) 7, strong (≥ -8 dB) 43.

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 HB9BRJ in decoded directed-looking exchanges:

DK2MAX · Fed. Rep. of Germany II6IGTO · Italy OK1HEH · Czech Republic SP6AXW · Poland UR7FM · Ukraine US1VAA · Ukraine DL8UD · Fed. Rep. of Germany EA5PS · Spain F5PZT · France OE5WRO · Austria SP4NKJ · Poland

Most frequent locator attributed to HB9BRJ

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: JN47 · 3 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 975 km (approx.)
Last such locator decoded: 2026-08-10 17:08 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	HB9BRJ S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-26 16:19	60m	- / -	SP2EWQ	-1 / -	3	Partial capture
10-26 16:19	60m	-2 / -	EA5PS	- / -21	2	✓ Closing fragment
10-26 16:18	60m	-4 / -	SP4NKJ	+3 / -5	4	✓ Full exchange observed
10-26 16:15	60m	-1 / -1	F5PZT	-8 / -3	4	✓ Full exchange observed
09-14 08:09	40m	- / -	DL2PR	-21 / -	3	Partial capture
09-14 08:06	40m	-8 / -5	OK1HEH	-7 / -2	4	✓ Full exchange observed
09-14 08:05	40m	- / -	HA9OA	+2 / -	2	Partial capture
09-14 08:04	40m	-8 / +4	SP6AXW	-11 / -8	7	✓ Full exchange observed
09-14 08:04	40m	-10 / -	DK2MAX	- / -7	2	✓ Closing fragment
08-10 17:22	40m	- / -4	US1VAA	+10 / -	2	✓ Closing fragment
08-10 17:16	40m	- / -11	UR7FM	-4 / -	2	✓ Closing fragment
08-10 17:04	60m	-10 / -10	OE5WRO	-23 / -10	3	✓ Full exchange observed
08-10 17:01	60m	-12 / +4	DL8UD	-4 / +4	5	✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

60m

UTC    dB Audio  Message
170815  +1  385  CQ HB9BRJ JN47
161545  -1  388  F5PZT HB9BRJ -03
161600  -9  835  HB9BRJ F5PZT R-01
161615  -1  387  F5PZT HB9BRJ RR73
161630  -8  835  HB9BRJ F5PZT 73
161800  -4  387  SP4NKJ HB9BRJ -05
161815  +4  985  HB9BRJ SP4NKJ R+16
161830  -3  387  SP4NKJ HB9BRJ RR73
161845  +2  985  HB9BRJ SP4NKJ 73
161900  -1  387  EA5PS HB9BRJ -21 (x2)
161945  +0  387  HB9BRJ SP2EWQ JO93 (x3)
162045 -12  931  HB9BRJ OE5FSL JN68

40m

UTC    dB Audio  Message
080615 -14 2172  HB9BRJ SP6AXW R+04
080615  -7 1965  HB9BRJ OK1HEH -05
080615  +4 2988  HB9BRJ HA9OA KN08
080630  -7  391  SP6AXW HB9BRJ RR73
080645 -12 2172  HB9BRJ SP6AXW 73
080645  -7 1965  HB9BRJ OK1HEH -08
080700  -7  390  OK1HEH HB9BRJ R-02 (x2)
080800  -5  390  F6FHZ HB9BRJ -07
080945 -22 1430  HB9BRJ DL2PR JO40
081000  -8  391  GJ0KYZ HB9BRJ R-06
081015 -21 1430  HB9BRJ DL2PR JO40
081145 -10  390  II6IGTO <HB9BRJ> RR73
081145 -21 1430  HB9BRJ DL2PR JO40
081230  -9  391  SP8WB HB9BRJ -06

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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