SV4TFQ — reception at SO8OO

Observed FT8 message patterns

Attributed sample

372 messages

Active dates

34 UTC dates

Estimated median S/N

-16.1 dB

Estimated 10th-90th percentile

-23 to -8 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 206, moderate (-15 to -9 dB) 118, strong (≥ -8 dB) 48.

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 SV4TFQ 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 SV4TFQ

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 · 241 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

1,164 km (approx.)

Last such locator decoded

2026-11-05 14:22 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.

Recent FT8 messages decoded at SO8OO

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

UTC    dB Audio  Message
145445  -3 2299  SV4TFQ ES6DO RR73 (x3)
145815  +2  438  SV4TFQ F1PBZ -11 (x2)
150015  +1  968  SV4TFQ PC6A JO21 (x4)
150545 -17 1621  SV4TFQ DB4JW/QRP -02
151445  -1 2041  SV4TFQ UA3GDJ KO92
151500 -17 2041  UA3GDJ SV4TFQ +02
151515  +6 2041  SV4TFQ UA3GDJ R-13
151530 -15 2041  UA3GDJ SV4TFQ RR73
151545  -5 2041  SV4TFQ UA3GDJ 73

UTC    dB Audio  Message
170545 -21 2033  CQ SV4TFQ KM19
170600  -7 1163  SV4TFQ HA5AZD JN97
170615 -18 2033  HA5AZD SV4TFQ +02
170630  -4 1163  SV4TFQ HA5AZD R-13
170645 -16 2033  HA5AZD SV4TFQ RR73
170700  -5 1164  SV4TFQ HA5AZD 73
170745 -19 2033  CQ SV4TFQ KM19
170815 -19 2033  LA4O SV4TFQ -17
170830 -10 1324  SV4TFQ LA4O JO59
170845 -20 2033  LA4O SV4TFQ -16
170900 -13 1324  SV4TFQ LA4O JO59
171415 -20 2033  LA4O SV4TFQ -14
174915 -13 2317  SV4TFQ OZ9FF -18 (x2)
175000 -21 2035  OZ9FF SV4TFQ KM19

UTC    dB Audio  Message
173630 -22 2004  OZ9FF SV4TFQ KM19 (x2)
174100 -21 2004  YT2ZE SV4TFQ KM19
174130 -22 2004  9A2G SV4TFQ KM19
174145 -10 1543  SV4TFQ YT2ZE -08
174145 +13 1015  SV4TFQ 9A2G -07
174200 -24 2004  9A2G SV4TFQ R-03
174215 -14 1543  SV4TFQ YT2ZE -08
174215 +13 1015  SV4TFQ 9A2G RR73
174300 -21 2004  YT2ZE SV4TFQ R+00
174315 -11 1543  SV4TFQ YT2ZE RR73
174330 -17 2004  YT2ZE SV4TFQ 73
174345  +4 1759  SV4TFQ DK7ZT -11 (x3)

UTC    dB Audio  Message
175545  -9  312  SV4TFQ 4L7T -25 (x4)
201530  +8  393  SV4TFQ HS0ZOY -11 (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.