K4TZZ — FT8 station from United States

United States Grid: JO31

Amateur radio station K4TZZ operating from United States (grid square JO31). 140 FT8 spots received at SO8OO WebSDR, 36 CQ calls, active on 80m, 60m, 40m, 20m, over 10 days, best SNR +20 dB. Heard between 2026-04-22 and 2026-05-31.

FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee

Overview

140

Total spots

CQ calls

Days active

-7 dB

Avg SNR

Bands

80m 20m 40m 60m

First seen: 2026-04-22
Last seen: 2026-05-31 17:14 UTC

Frequent QSO partners observed at SO8OO

Stations K4TZZ worked most often, as logged from our receiver:

N3GTY · United States A61CK · United Arab Emirates F4MGP · France WK5I · United States IQ4JO · Italy W8ASH · United States SP5EXA · Poland N1SK · United States TN8GD · Republic of the Congo KZ4MV · United States KJ5OUL · United States AB8MO · United States

Activity Heatmap

Location

QSO Logbook (as observed from SO8OO)

Format: our rx / partner reports

Time	Band	K4TZZ	Partner	Partner SNR	Msgs
05-31 19:13	20m	-10 / -	DL1UDO	- / -	2	Partial
05-25 23:49	20m	- / -	G6BCC	-3 / -	2	Partial
05-25 23:39	20m	-10 / -	N1SK	-8 / +6	3	✓ Complete
05-25 23:39	20m	-9 / -24	VE2FVV	-8 / -5	13	Partial
05-25 23:38	20m	-1 / -	OE5TXF	- / -	3	Partial
05-25 23:37	20m	- / +4	SN1A	-8 / -	2	✓ Confirmed
05-25 23:34	20m	-2 / -	9J2FI	- / -10	3	Partial
05-21 01:28	20m	- / -4	DL7RAY	-8 / -	2	✓ Confirmed
05-21 01:24	20m	-8 / -24	SP5EXA	-6 / +3	5	✓ Complete
05-21 01:21	20m	- / -	W7ZR	-4 / -	2	Partial
05-21 01:18	20m	- / +9	SP6AXW	-4 / -	3	✓ Confirmed
05-21 01:16	20m	- / -16	KJ5OUL	-1 / -	4	✓ Confirmed
05-21 01:14	20m	- / -21	DF1MP	-1 / -	2	✓ Confirmed
05-21 01:11	20m	- / -	WK5I	-5 / -	3	✓ Confirmed
05-21 01:08	20m	- / +8	UX7QV	-4 / -	3	Partial
05-21 01:06	20m	- / -20	IK2WSA	-6 / -	3	Partial
05-09 01:59	80m	-9 / -	EA7LIC	- / -11	6	✓ Confirmed
05-09 01:57	80m	-2 / -	F1PBZ	- / -11	2	✓ Confirmed
05-09 01:50	40m	+5 / -	F4FCE	- / -	4	Partial
05-09 01:47	40m	-12 / -	F4MGP	- / -	4	✓ Confirmed
05-09 01:47	40m	-11 / -	M0ICL	- / -	2	Partial
05-09 01:46	40m	-6 / -	F5NNN	- / -	6	Partial
05-08 00:58	40m	+17 / -	IK2XDE	- / -	4	Partial
05-08 00:51	40m	-22 / -	KO4FQW	-14 / -	4	Partial
05-08 00:50	40m	- / -	KV4WT	-14 / -	2	Partial
05-08 00:50	40m	-19 / -	KZ4MV	-10 / +2	8	✓ Complete
05-08 00:41	40m	- / -16	AB8MO	-14 / -	3	✓ Confirmed
05-08 00:40	40m	+20 / -	IK2XDE	- / -	2	Partial
05-08 00:19	20m	-9 / -	PA3EY	-5 / -	7	✓ Verified
05-08 00:18	20m	-12 / -11	N3GTY	-8 / +3	3	✓ Complete
05-08 00:15	20m	- / -20	IQ4JO	-7 / -	2	✓ Confirmed
05-08 00:06	20m	-14 / -	TN8GD	- / -5	2	✓ Confirmed
05-02 02:31	60m	-4 / -	DK5WL	- / -	3	Partial
05-01 19:12	20m	-10 / -	MI7XHT	- / -	5	Partial
04-28 23:45	20m	+2 / -	A61CK	-8 / -	3	✓ Verified
04-28 23:37	20m	-11 / -	UA6YW	- / -13	6	Partial
04-23 00:44	20m	-14 / -	F5RRS	- / -	4	Partial

Station Log

20m

UTC    dB  Freq  Message
234400  -7 2599  CQ K4TZZ EM85
234415 -11  442  K4TZZ VE2FVV R-04
234430  -7 2599  CQ K4TZZ EM85
234445 -12  441  K4TZZ VE2FVV R-04
234445  -6 2599  K4TZZ R5AV -22
234700  -4 2599  W8ASH K4TZZ 73
234730  -2 2599  CQ K4TZZ EM85 (x2)
234815  +4 2598  K4TZZ RD3FY -22
234830  +0 2599  CQ K4TZZ EM85
234845  -2 2598  K4TZZ R5AV -22
234900  -4 2599  G6BCC K4TZZ +16 (x2)
191345 -10 1122  K4TZZ DL1UDO JO31 (x2)

80m

UTC    dB  Freq  Message
015700  -1  751  K4TZZ F1PBZ -11 (x2)
015930  -6 1929  K4TZZ EA7LIC IM86 (x6)

40m

UTC    dB  Freq  Message
014630  -3  991  K4TZZ F5NNN IN94
014700  -8 2557  K4TZZ M0ICL JO01
014730 -16 1920  K4TZZ F4MGP JN04
014730 -14 2557  K4TZZ M0ICL JO01
014800 -12  991  K4TZZ F5NNN IN94
014800 -14 1920  K4TZZ F4MGP R+14
014830  -6  991  K4TZZ F5NNN IN94
014830 -12 1920  K4TZZ F4MGP R+14 (x2)
014900  -1  991  K4TZZ F5NNN IN94 (x2)
015030  -1 2557  K4TZZ F4FCE JN06 (x4)

60m

UTC    dB  Freq  Message
023030 -10  898  K4TZZ C5D -06
023130  -6 1341  K4TZZ DK5WL JN39 (x3)