My SOTA VHF/UHF Dx Distance Records

How far can your VHF/UHF signal travel from a mountain top?

SOTA Operations – Yaesu FT-857D 6m to 70cm

Type Frequency Date Radio Power Output My Antenna VK Summit My Grid Callsign worked Callsign Grid Distance (km) Distance (miles)
SOTA Activator 50 MHz SSB Dx 9-Jan-16 FT-857D 25 watts Flower Pot VK1/AC-039 QF44KP ZL1SSW RF73KD 2373 1474
SOTA Activator 50 MHz SSB 13-Dec-15 FT-857D 25 watts Flower Pot VK1/AC-026 QF44LK VK4FNQ QG39EX 1746 1085
SOTA S2S 52 MHz SSB 31-Dec-14 FT-857D 20 watts Linked Dipole VK2/SM-049 QF44RG VK2IO/P QF56QO 315 195
SOTA Activator 144 MHz SSB 28-Mar-16 FT-857D 90 watts* 4el 2m Yagi VK2/ST-053 QF45ME VK3AXH QF12WI 560 347
SOTA S2S 144 MHz SSB 3-Mar-13 FT-857D 40 watts 4el 2m Yagi VK1/AC-008 QF44JI VK3HRA/P QF12UQ 495 307
SOTA Activator 432 MHz SSB 10-Apr-16 FT-857D 18 watts 7el 70cm Yagi VK2/ST-044 QF45HI VK2DO QF54CH 190 118
SOTA S2S 432 MHz SSB 10-Apr-16 FT-857D 18 watts 7el 70cm Yagi VK2/ST-044 QF45HI VK1RX/2 QF44XM 158 98
SOTA S2S 432 MHz SSB 23-Apr-16 FT-857D 20 watts 7el 70cm Yagi VK1/AC-023 QF44JQ VK1ATP/3 QF43AL 154 95

S2S = SOTA Summit to Summit Contact
* Using a 144 MHz 90 watt amplifier

SOTA Operations – Yaesu FT-817ND QRP 6m to 70cm

Type Frequency Date Radio Power Output My Antenna VK Summit My Grid Callsign worked Callsign Grid Distance (km) Distance (miles)
SOTA S2S 52 MHz SSB 15-Mar-15 FT-817 5 watts Linked Dipole VK1/AC-043 QF44MQ VK2IO/P QF56AI 208 129
SOTA Activator 50 MHz DX 12-Jan-17 FT-817 5 watts Coaxial Vert 1/2 wave VK2/ST-015 QF44XM ZL1AKW RF82CG 2340 1454
SOTA Activator 50 MHz DX 12-Jan-17 FT-817 5 watts Coaxial Vert 1/2 wave VK2/ST-015 QF44XM ZL1AIX RF72NS 2245 1400
SOTA Activator 144MHz SSB 20-Mar-16 FT-817 5 watts 3el 2m Yagi VK2/SM-007 QF43EO VK2COW QF44OX 173 107
SOTA Activator 144MHz SSB 26-Dec-16 FT-817 5 watts 2m SlimJim VK3/VC-003 QF22VI VK3IL/P QF21PM Phillip Island 105 66
SOTA Activator 432 MHz SSB 20-Mar-16 FT-817 5 watts 7el 70cm Yagi VK2/SM-007 QF43EO VK2COW QF44OX 173 107

First published: 18 March 2016
Last update: 12 January 2017 – 6m QRP, 5 watt contacts with ZL1AKW and ZL1AIX

SOTA 23 cm Distance Records

FM Mode

Type Frequency Date Radio Power Output My Antenna VK Summit My Grid Callsign worked Callsign Grid Distance (km) Distance (miles)
SOTA Activator 1294 MHz FM 11-Jun-17 ICOM IC-1200 10 watts 23cm 3el PCB Yagi VK2/SW-034 QF44FR VK1KW QF44MT 53 32
SOTA Activator 1294 MHz FM 11-Jun-17 ICOM IC-1200 10 watts 23cm 3el PCB Yagi VK2/SW-026 QF44GR VK2UH QF45LD 57 34

SSB Mode

Type Frequency Date Radio Power Output My Antenna VK Summit My Grid Callsign worked Callsign Grid Distance (km) Distance (miles)
SOTA Activator 1296 MHz SSB 18-Jun-17 FT-817 & SG-Lab 23cm transverter 2.5 watts 23cm 2el PCB Yagi VK1/AC-037 QF44MP VK2TWR QF43PL 131 81
SOTA Activator 1296 MHz SSB 7-Jul-17 FT-817 & SG-Lab 23cm transverter 2.5 watts 23cm 12el Yagi VK2/SM-052 QF44SB VK1KW QF44MT 94 58
SOTA Activator 1296 MHz SSB 8-Jul-17 FT-817 & SG-Lab 23cm transverter 2.5 watts 23cm 12el Yagi VK2/SM-059 QF43SX VK2JDS QF46PV 322 200
SOTA Activator 1296 MHz SSB 28-Jul-17 FT-817 & SG-Lab 23cm transverter 2.5 watts 23cm 12el Yagi VK2/ST-042 QF45JF VK2TWR QF43PL 200  124

Summit to Summit contacts

Type Frequency Date Radio Power Output My Antenna VK Summit My Grid Callsign worked Callsign Grid Distance (km) Distance (miles)
SOTA S2S 1294 MHz FM 10-Jun-17 ICOM IC-1200 10 watts 23cm 3el PCB Yagi VK2/SW-034 QF44 VK2HRX/P QF44JL 44 27
SOTA S2S 1296 MHz SSB 18-Jun-17 FT-817 & SG-Lab 23cm transverter 2.5 watts 23cm 2el PCB Yagi VK1/AC-037 QF44MP VK1DA/2 QF45ME 60 37
SOTA S2S 1296 MHz SSB 23-Jul-17 FT-817 & SG-Lab 23cm transverter 2.5 watts 23cm 12el Yagi VK2/SM-093 QF44NG VK1RX/2 QF43NN 78 48
SOTA S2S 1296 MHz SSB 28-Jul-17 FT-817 & SG-Lab 23cm transverter 2.5 watts 23cm 12el Yagi VK2/ST-042 QF45JF VK1RX/2 QF44NG 110 68
SOTA S2S 1296 MHz SSB 28-Jul-17 FT-817 & SG-Lab 23cm transverter 2.5 watts 23cm 12el Yagi VK2/ST-042 QF45JF VK1DA/2 QF44QK 100 60
SOTA S2S 1296 MHz SSB 6-Oct-17 FT-817 & SG-Lab 23cm transverter 2.5 watts 23cm 12el Yagi VK1/AC-002 QF44JK VK2HRX/P QF55DQ 193 119

First Published: 11 June 2017
Last Update: 5 November 2017

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