SP4GXR — 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: Poland Most frequent locator attributed to this token: JO93

Receiver-side FT8 activity involving SP4GXR, decoded by SO8OO in southeastern Poland. 12 FT8 messages attributed to this token as transmitter, on 20m, across 1 UTC dates in the available aggregate history. Last observed 2026-06-14.

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 12 FT8 messages attributed to SP4GXR as the transmitting token by decoded message structure across 1 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (100%). In this small sample, the estimated median decoder S/N was +11 dB; no usual signal pattern is inferred.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

+11 dB

Estimated median S/N

Bands

20m · 12

First attributed message: 2026-06-14
Last attributed message: 2026-06-14 13:36 UTC

Observed FT8 message patterns

Attributed sample: 12 messages
Active dates: 1 UTC dates
Estimated median S/N: +11 dB
S/N percentile sample: Too small
Recurring-pattern threshold: Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 0, moderate (-15 to -9 dB) 0, strong (≥ -8 dB) 12.

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. The sample does not meet the threshold for a recurring time or signal-pattern claim (20 attributed messages, three UTC dates and five distinct 15-minute windows).

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with SP4GXR in decoded directed-looking exchanges:

DF7EE · Fed. Rep. of Germany DH1GKS · Fed. Rep. of Germany DH5BM · Fed. Rep. of Germany F1PBZ · France I4WQH · Italy 9A4ZM · Croatia DG5DR · Fed. Rep. of Germany DL1NRC · Fed. Rep. of Germany F8MRQ · France IN3WZS · Italy LA6RJA · Norway RW3QW · European Russia

Most frequent locator attributed to SP4GXR

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: JO93 · 2 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 440 km (approx.)
Last such locator decoded: 2026-06-14 13:31 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	SP4GXR S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-28 17:02	40m	- / -	F8MRQ	+3 / -	4	✓ Closing fragment
10-28 16:53	40m	- / -5	F8MRQ	-6 / -	8	Partial capture
10-28 16:49	40m	- / +6	PD1DBL	-7 / -	4	Partial capture
10-28 16:48	40m	- / -6	RW3QW	-2 / -	3	✓ Closing fragment
10-28 16:48	40m	- / -	SV1DKR	-10 / -	2	Partial capture
10-27 16:51	40m	- / -	OE9GWV	-8 / -	5	Partial capture
09-13 16:23	40m	- / -7	9A4ZM	0 / -	3	✓ Closing fragment
08-21 16:50	10m	- / -	DK3TA	-13 / -	2	Partial capture
08-21 16:50	10m	- / -6	PE9JAN	-13 / -	4	Partial capture
08-21 16:45	10m	- / -5	DF7EE	-6 / -	5	✓ Closing fragment
08-21 16:45	10m	- / 0	DH5BM	-12 / -	3	✓ Closing fragment
08-21 16:39	10m	- / -	DO1FDK	-2 / -	2	Partial capture
08-09 13:15	10m	- / -1	I4WQH	-14 / -	2	✓ Closing fragment
08-09 13:11	10m	- / -8	F1PBZ	+2 / -	2	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
165315  -3 2218  SP4GXR F8MRQ R-05 (x3)
165445  -2 1350  SP4GXR IN3WZS 73
165445  -7 1281  SP4GXR F8MRQ JN17 (x5)
170115 -19 1881  SP4GXR OS4K -03
170215  +7 2950  SP4GXR F8MRQ JN17 (x4)
170745  -8  488  SP4GXR LA6RJA RR73

10m

UTC    dB Audio  Message
164545 -17 1666  SP4GXR DH5BM JO41
164545  -4 1276  SP4GXR DF7EE JO40
164615 -11 1666  SP4GXR DH5BM R+00
164615  -4 1276  SP4GXR DF7EE JO40
164645  -9 1666  SP4GXR DH5BM 73
164645  -6 1276  SP4GXR DF7EE JO40 (x3)
165015 -12 1784  SP4GXR PE9JAN JO22
165015 -12 1665  SP4GXR DK3TA JO50
165045 -12 1784  SP4GXR PE9JAN R-06 (x2)
165115 -14 1666  SP4GXR DK3TA JO50
165145 -16 1783  SP4GXR PE9JAN R-06
165215 -13  778  SP4GXR DH1GKS 73

CW

No CW receptions recorded for this callsign in the last 30 days.

Explore CW reception at SO8OO

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