DH1RAH — 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: Fed. Rep. of Germany Most frequent locator attributed to this token: JN68

Receiver-side FT8 activity involving DH1RAH, decoded by SO8OO in southeastern Poland. 71 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 11 UTC dates in the available aggregate history. Observed between 2026-06-16 and 2026-11-01.

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 71 FT8 messages attributed to DH1RAH as the transmitting token by decoded message structure across 11 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (54%), followed by 20 m (39%) and 80 m (7%). Several six-hour UTC windows tied for the largest share (61%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -10 dB.

Overview

71
Messages attributed
11
UTC dates decoded
18
Active 15-min windows
-10 dB
Estimated median S/N

Bands

80m · 5 40m · 38 20m · 28
First attributed message: 2026-06-16
Last attributed message: 2026-11-01 09:06 UTC

Observed FT8 message patterns

Attributed sample
71 messages
Active dates
11 UTC dates
Estimated median S/N
-10 dB
Estimated 10th-90th percentile
-23 to -5 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 23, moderate (-15 to -9 dB) 22, strong (≥ -8 dB) 26.

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 DH1RAH 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 DH1RAH

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
JN68 · 31 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
658 km (approx.)
Last such locator decoded
2026-11-01 08:59 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 UTCBandDH1RAH S/NCounterpartCounterpart S/NMsgsCapture
11-01 09:05 40m -8 / - DM2GG -3 / -14 4 Partial capture
11-01 09:00 40m -9 / -2 F4BYA +2 / +1 6 ✓ Full exchange observed
11-01 08:58 40m - / - DM2GG -4 / - 2 Partial capture
11-01 08:56 40m - / - F4BYA +5 / - 2 Partial capture
11-01 08:52 40m - / - F4BYA -2 / - 4 Partial capture
11-01 08:48 40m -17 / - IQ0AAI -10 / -5 3 ✓ Closing observed
09-09 00:29 80m - / -2 M0IOY -14 / - 4 Partial capture
09-09 00:10 80m -14 / -24 ON4MAP -14 / -18 6 ✓ Full exchange observed
09-04 15:57 40m - / -14 DL6ZOG -1 / - 3 ✓ Closing fragment
09-04 15:55 40m -9 / -1 IZ4AIF +6 / - 3 ✓ Full exchange observed
09-04 15:38 40m -10 / - IK2IKW - / +9 2 ✓ Closing fragment
09-04 15:33 40m -6 / - PA0EBG - / -17 2 ✓ Closing fragment
09-04 15:32 40m -6 / 0 DL9PN +3 / +5 5 ✓ Full exchange observed
09-04 15:30 40m -5 / -14 F1IQH -10 / +3 4 ✓ Full exchange observed
09-04 15:28 40m -8 / - <...> - / - 3 Partial capture
08-29 14:01 20m - / -14 SV5BYP 0 / - 3 ✓ Closing fragment
08-28 05:21 20m -4 / -9 UA1AOF -16 / -24 6 ✓ Full exchange observed
08-24 13:09 20m - / -18 RN6MA +17 / - 3 Partial capture
08-24 08:23 20m -10 / - F1PBZ - / - 2 ✓ Closing fragment
08-24 08:22 20m -8 / - F4BYA -3 / +4 7 Partial capture
08-24 08:20 20m - / +2 IQ4JO +2 / - 3 ✓ Closing fragment
08-16 08:10 20m -18 / - DD7BW - / -19 2 Partial capture
08-11 08:53 20m -18 / - PC2J -24 / - 3 ✓ Closing observed
08-10 09:11 20m - / -8 E70SZ -10 / - 3 ✓ Closing fragment
08-09 07:51 20m - / -18 PD1HPB -22 / - 2 Partial capture

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
085630  +3 2947  DH1RAH F4BYA JN19
085745  -7  967  CQ DH1RAH JN68
085830  -2  729  DH1RAH DM2GG JO51 (x2)
085945  -9  968  CQ DH1RAH JN68
090000  +3 2946  DH1RAH F4BYA JN19
090015  -9  967  F4BYA DH1RAH +01
090030  +3 2946  DH1RAH F4BYA R-02
090045  -9  967  F4BYA DH1RAH RR73
090100  +2 2946  DH1RAH F4BYA 73 (x2)
090500  -2  729  DH1RAH DM2GG JO51
090545  -7 1250  DM2GG DH1RAH -14
090600  -4  729  DH1RAH DM2GG JO51
090615 -10 1250  DM2GG DH1RAH -14
80m 
UTC    dB Audio  Message
001030 -18  725  CQ DH1RAH JN68
001045 -17 1502  DH1RAH ON4MAP JO20
001100 -10  725  ON4MAP DH1RAH -18
001115 -16 1502  DH1RAH ON4MAP R-24 (x2)
001200 -17  725  ON4MAP DH1RAH RR73
001215 -15 1502  DH1RAH ON4MAP 73
001630 -15  724  CQ DH1RAH JN68 (x2)
002930 -11 1167  DH1RAH M0IOY IO93 (x4)
20m 
UTC    dB Audio  Message
131015 +17  752  DH1RAH RN6MA -18 (x3)
052115  +3 2754  CQ DH1RAH JN68
052130 -15 1392  DH1RAH UA1AOF KO59
052145  +0 2754  CQ DH1RAH JN68
052200 -16 1392  DH1RAH UA1AOF KO59
052215  +0 2754  UA1AOF DH1RAH -24
052230 -15 1392  DH1RAH UA1AOF R-09
052245  -7 2754  UA1AOF DH1RAH RR73
052300 -16 1392  DH1RAH UA1AOF 73
052845  -6  428  VK4VCC DH1RAH JN68
140130  +1 1908  DH1RAH SV5BYP KM46 (x3)

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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