SV4DCQ — 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: Greece Most frequent locator attributed to this token: KM19

Receiver-side FT8 activity involving SV4DCQ, decoded by SO8OO in southeastern Poland. 224 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 9 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-10-22.

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 224 FT8 messages attributed to SV4DCQ as the transmitting token by decoded message structure across 9 UTC dates in the available aggregate history. The largest monitored-band total was 10 m (62%), followed by 40 m (30%) and 20 m (8%). Several six-hour UTC windows tied for the largest share (73%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -12 dB.

Overview

224
Messages attributed
9
UTC dates decoded
28
Active 15-min windows
-12 dB
Estimated median S/N

Bands

40m · 68 20m · 18 10m · 138
First attributed message: 2026-06-07
Last attributed message: 2026-10-22 18:38 UTC

Observed FT8 message patterns

Attributed sample
224 messages
Active dates
9 UTC dates
Estimated median S/N
-12 dB
Estimated 10th-90th percentile
-22 to -2 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 80, moderate (-15 to -9 dB) 65, strong (≥ -8 dB) 79.

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 SV4DCQ in decoded directed-looking exchanges:

Most frequent locator attributed to SV4DCQ

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
KM19 · 142 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,164 km (approx.)
Last such locator decoded
2026-10-22 18:38 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 UTCBandSV4DCQ S/NCounterpartCounterpart S/NMsgsCapture
10-22 18:52 40m - / - IU8UUF -5 / - 2 Partial capture
10-22 18:50 40m - / - IU2SMB -4 / - 2 Partial capture
10-22 18:50 40m - / -9 OZ5THY -16 / - 4 Partial capture
10-22 18:49 40m - / - F4BYA +11 / - 8 Partial capture
10-22 18:40 40m - / - ON7DE 0 / - 9 Partial capture
10-22 18:37 40m - / - G0RVY +7 / - 2 Partial capture
10-22 18:31 40m -6 / - CT2HEX -15 / -3 6 Partial capture
10-22 18:29 40m - / - F4MXE -10 / - 2 Partial capture
10-22 18:26 40m - / - G5MUT -5 / - 2 Partial capture
10-22 18:25 40m -10 / -19 I2LAX -8 / -13 8 ✓ Full exchange observed
10-22 18:24 40m - / - G0MSE -18 / - 2 Partial capture
10-22 18:23 40m - / - EB2EMZ -20 / - 2 Partial capture
10-22 18:19 40m -11 / - R6LQU - / -8 3 ✓ Closing fragment
10-22 18:18 40m - / - DL3IAK 0 / - 3 Partial capture
10-22 18:13 40m -13 / - R7KEO - / -7 2 ✓ Closing fragment
10-22 18:10 40m - / -10 ON7KRI -6 / - 7 ✓ Closing fragment
10-22 18:05 40m -8 / - SP5MIG - / -6 2 Partial capture
10-22 18:01 40m - / - PE1NPS -7 / - 3 Partial capture
10-22 17:55 40m -19 / -9 F5PBG -12 / -9 4 ✓ Full exchange observed
10-22 17:51 40m -18 / -12 RD3TBQ -5 / -10 4 Partial capture
10-22 17:50 40m -12 / - OH3MB - / -6 2 ✓ Closing fragment
10-22 17:49 40m - / - HB9XBY -16 / - 4 Partial capture
10-22 17:47 40m - / - PE1NPS -5 / - 4 Partial capture
10-11 18:12 40m - / - RW3DDZ -15 / - 2 Partial capture
10-04 18:14 40m - / -16 F1PBZ -13 / - 2 Partial capture
09-24 18:45 40m - / - RW3DDZ -22 / - 2 Partial capture
09-24 18:45 40m - / - S51PV -14 / - 2 Partial capture
08-22 09:29 10m - / - DL2SEW -8 / - 2 Partial capture
08-22 09:23 10m - / - DH1TZ -16 / - 7 Partial capture
08-22 09:22 10m - / -8 PE9JAN -11 / - 3 ✓ Closing fragment
08-22 09:00 10m -18 / -19 ON5RZ -14 / - 4 ✓ Closing observed
08-22 08:57 10m -18 / - SO1CJ - / -9 2 ✓ Closing fragment
08-21 20:39 20m - / -15 RW3DDZ -13 / - 4 Partial capture
08-21 20:35 40m - / -20 9A3AUH +6 / - 3 Partial capture
08-21 20:34 40m - / -24 9A1CCB -1 / - 3 ✓ Closing fragment
08-21 20:34 40m - / - IK4LZH -2 / - 4 Partial capture
08-21 20:33 40m - / - PE1NPS -1 / - 4 Partial capture
08-21 17:10 20m - / - DK1GP +6 / - 3 Partial capture
08-21 16:41 20m - / -14 ON1JP -11 / - 4 Partial capture
08-21 16:40 20m - / - DL1UDO -8 / - 3 Partial capture
08-21 07:28 20m - / - IK4LZH -3 / - 4 Partial capture
08-21 07:25 20m - / - E70SZ -1 / - 4 Partial capture
08-21 07:25 20m - / - DL1R +4 / - 2 Partial capture
08-21 07:25 20m - / - IK4LZH 0 / - 2 Partial capture
08-21 07:24 20m - / -12 YO6LM +6 / - 4 Partial capture
08-21 07:21 20m - / - DB2HA +7 / - 2 ✓ Closing fragment
08-21 07:21 20m - / -19 YO6LM -2 / - 2 Partial capture
08-15 17:33 20m - / - EA3AAY -15 / - 2 Partial capture
08-09 19:23 40m - / - YO9FDG -17 / - 2 Partial capture
08-09 19:18 40m - / -8 DL5MKR -12 / - 7 Partial capture

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
185015 +13 2983  SV4DCQ F4BYA JN19
185045 -15 1076  SV4DCQ OZ5THY JO46
185045  -3  888  SV4DCQ IU2SMB JN45
185045 +10 2982  SV4DCQ F4BYA JN19
185115 -19 1076  SV4DCQ OZ5THY JO46
185115  +7 2983  SV4DCQ F4BYA JN19
185145 -17 1076  SV4DCQ OZ5THY -09
185145  -6  888  SV4DCQ IU2SMB JN45
185145 +14 2983  SV4DCQ F4BYA JN19
185215  -4 1540  SV4DCQ IU8UUF JN70
185215  +0  927  SV4DCQ G0RVY JO01
185215  +8 2983  SV4DCQ F4BYA JN19
185245  -6 1540  SV4DCQ IU8UUF JN70
185245 +13 2983  SV4DCQ F4BYA JN19
185915 -16 1419  SV4DCQ PH4A -17
10m 
UTC    dB Audio  Message
092315 -10 1738  SV4DCQ PE9JAN 73
092345 -18 1050  SV4DCQ DH1TZ JO40 (x2)
092445 -19 1320  SV4DCQ DO5PY JN49
092445 -17 1049  SV4DCQ DH1TZ JO40 (x3)
092615  -5 2612  SV4DCQ DM2FK JO51
092615 -13 1050  SV4DCQ DH1TZ JO40 (x2)
092915  -9 2739  SV4DCQ DL2SEW JN48 (x2)
093315 -11  660  SV4DCQ DN9DKN JO31
093330 -21 2131  DN9DA SV4DCQ -13
102130 -23 1920  SV4DCQ DO2MS JO40
20m 
UTC    dB Audio  Message
164245 -12  276  SV4DCQ ON1JP -14
164315  -4 2090  SV4DCQ PA1PXL JO21
164315 -10  276  SV4DCQ ON1JP -14
165015 -12 2089  SV4DCQ DL1HEW JO53
171015  +5 2779  SV4DCQ DK1GP JO30 (x3)
171215 -17 1926  SV4DCQ DK5UP JO31
202715 -24 2120  SV4DCQ SA0WAE JO99
202915 -22 1809  SV4DCQ F8KIC/P JN29
203915 -11 1954  SV4DCQ RW3DDZ R-15 (x4)
204145  -7 1816  SV4DCQ NF3R FN20

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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