My SOTA VHF/UHF Dx Distance Records

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

SOTA Operations – Yaesu FT-857D

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

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

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