HB9RBV — 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 HB9RBV, decoded by SO8OO in southeastern Poland. 163 FT8 messages attributed to this token as transmitter, on 80m, 40m, 10m, across 27 UTC dates in the available aggregate history. Observed between 2026-06-16 and 2026-11-03.

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 163 FT8 messages attributed to HB9RBV as the transmitting token by decoded message structure across 27 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (83%), followed by 10 m (9%) and 80 m (7%). Most decodes (96%) fell within the six-hour window 17:00-23:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -11 dB.

Overview

163
Messages attributed
27
UTC dates decoded
54
Active 15-min windows
-11 dB
Estimated median S/N

Bands

80m · 12 40m · 136 10m · 15
First attributed message: 2026-06-16
Last attributed message: 2026-11-03 21:28 UTC

Observed FT8 message patterns

Attributed sample
163 messages
Active dates
27 UTC dates
Estimated median S/N
-11 dB
Estimated 10th-90th percentile
-19 to -5 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 39, moderate (-15 to -9 dB) 77, strong (≥ -8 dB) 47.

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 HB9RBV in decoded directed-looking exchanges:

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 HB9RBV

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 · 91 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
975 km (approx.)
Last such locator decoded
2026-10-21 18:59 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 UTCBandHB9RBV S/NCounterpartCounterpart S/NMsgsCapture
11-03 21:36 80m - / -8 OE8TED +24 / - 2 ✓ Closing fragment
11-03 21:26 80m -18 / -11 DM3ER -9 / - 7 ✓ Closing observed
10-30 20:37 40m - / -15 RW6HPI -16 / - 6 ✓ Closing fragment
10-22 19:32 40m - / -5 MI7XHT -18 / - 2 Partial capture
10-21 18:58 40m -1 / - YO2UKG - / - 4 Partial capture
10-18 19:24 40m -16 / - F4FTX/P - / - 2 Partial capture
10-18 19:00 40m -15 / - LA7HJA - / - 3 Partial capture
10-16 19:57 40m -5 / - G0GDA - / -15 5 ✓ Closing fragment
10-16 19:56 40m -2 / - SP2FTL - / - 2 Partial capture
10-16 19:55 40m -8 / - G0HSP -9 / 0 3 ✓ Closing observed
10-16 18:23 80m -13 / - HB3YOY -8 / -14 4 ✓ Closing observed
10-16 18:04 80m -15 / -14 DL8YBL 0 / -8 5 ✓ Full exchange observed
10-16 18:03 80m -15 / -5 IV3FSG +11 / - 3 ✓ Closing observed
10-16 17:56 40m - / - DL6FBR +2 / - 2 Partial capture
10-13 18:09 40m -10 / -14 PA8S -10 / -17 4 ✓ Full exchange observed
10-13 18:06 40m -10 / - E77AR -11 / -7 3 ✓ Closing observed
10-13 17:57 40m -12 / - S52DD +2 / -11 4 ✓ Closing observed
10-13 17:36 40m - / +5 F4MZI -7 / - 2 ✓ Closing fragment
10-13 17:20 40m -8 / -11 SV1DKR -15 / -20 5 ✓ Full exchange observed
10-13 17:17 40m -9 / -10 HB9ELE +12 / -8 10 ✓ Full exchange observed
10-13 17:16 40m -12 / - DF3MT -8 / - 2 ✓ Closing observed
10-08 18:49 40m - / -17 LZ2XA +7 / - 2 ✓ Closing fragment
10-08 18:12 40m -8 / - DG8MPI - / -9 4 ✓ Closing fragment
10-08 18:01 40m -13 / -15 PD4RJ -11 / - 4 ✓ Closing observed
10-08 17:50 40m -2 / -1 DL9KV -10 / - 4 ✓ Closing observed
10-07 18:33 40m -7 / - PH2M - / - 2 ✓ Closing fragment
10-07 18:19 40m -8 / - OE3PWR - / - 3 Partial capture
10-06 19:03 40m -17 / -11 HB9SPACE -1 / -15 9 Partial capture
10-05 20:12 40m -8 / +4 M0ZJB -6 / - 5 ✓ Full exchange observed
10-05 20:06 40m -6 / - 9A7W - / - 2 Partial capture
10-05 19:56 40m -12 / -8 M0LAD -3 / -19 7 ✓ Full exchange observed
10-05 19:43 40m -7 / -11 M0LAD -7 / - 5 Partial capture
10-05 19:30 40m -6 / - 9A7W - / - 2 Partial capture
10-05 19:29 40m -8 / - EB3DBR - / - 2 Partial capture
10-05 19:23 40m -11 / -21 II5GG +1 / - 3 Partial capture
09-24 22:22 40m -9 / - LY5O - / +3 4 ✓ Closing fragment
09-18 19:36 40m -6 / - SQ3LMR - / -16 4 ✓ Closing fragment
09-18 19:27 40m - / +4 DL1NB +3 / - 3 Partial capture
09-18 19:22 40m -16 / - F3CJ - / - 2 Partial capture
09-06 19:29 40m -11 / - OV6ZM - / - 2 Partial capture
09-05 19:26 40m - / -12 LY2MM +8 / - 2 ✓ Closing fragment
09-05 19:19 40m - / -7 ON6SAT -2 / - 2 ✓ Closing fragment
09-05 19:11 40m -15 / -10 OH2MA 0 / - 3 ✓ Closing observed
09-05 19:09 40m -17 / -2 PC7W -10 / -11 3 ✓ Full exchange observed
08-31 19:55 40m -20 / -12 PG4T +8 / - 3 ✓ Closing observed
08-31 19:51 40m - / -12 DL5RCN +4 / - 2 ✓ Closing fragment
08-29 19:59 40m - / -10 G1SID +6 / - 2 ✓ Closing fragment
08-29 19:55 40m -15 / 0 M0VCP -8 / -18 4 ✓ Full exchange observed
08-29 19:48 40m -13 / -15 OH1LEG -6 / -15 6 ✓ Full exchange observed
08-29 19:39 40m -19 / -18 PD2XX -10 / -15 4 ✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

80m 
UTC    dB Audio  Message
180515 -13 1755  DL8YBL HB9RBV RR73
180530  +1 1898  HB9RBV DL8YBL 73
182345 -15 1755  HB3YOY HB9RBV JN47 (x2)
182500  -8 1526  HB9RBV HB3YOY RR73
182515 -17 1755  HB3YOY HB9RBV 73
212600  -9 1435  HB9RBV DM3ER -11 (x4)
212815 -18 2105  DM3ER HB9RBV 73
212830 -15 1435  HB9RBV DM3ER RRR
212845 -18 2104  DM3ER HB9RBV 73
213600 +22 2834  HB9RBV OE8TED -08 (x2)
40m 
UTC    dB Audio  Message
190115 -16 2138  LA7HJA HB9RBV JN47
192415 -14 2137  F4FTX/P HB9RBV JN47 (x2)
185800  -2 2035  YO2UKG HB9RBV JN47 (x4)
193245 -20 2057  HB9RBV MI7XHT -05 (x2)
203730 -21 1181  HB9RBV RW6HPI -15 (x6)
10m 
UTC    dB Audio  Message
195915  +0 2750  RN4AQ HB9RBV JN47 (x2)
200245 -17 2083  CQ HB9RBV JN47 (x2)
200445 -17 2083  SP3TD HB9RBV -10 (x2)
200615 -19 2083  SP6ASD HB9RBV RR73
201015 -18 2082  CQ HB9RBV JN47
201100 -18 2082  HB9RBV PD1WMD JO21 (x3)
201315 -21 2082  SP9JP HB9RBV 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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