Product Manual

P a g e | 33
20-62 VHF & UHF TRANSMITTER
Product Manual
Sea Air and Land Communications Ltd, 10 Vanadium Place, Addington, Christchurch 8024, New Zealand June 2020
Antenna Selection and Installation
When installing your Salcom product solution it is recommended to site the aerial at least a few
metres away from the unit to avoid the possibility of RF feedback and causing potential problems
with the transmitter operation.
An external (outside) aerial is preferable and will provide better radio coverage. A suitable
antenna, such as ground independent half wave, is connected to the unit via the SMA connector
on the end plate of the unit. The aerial connection should present a nominal load of 50Ω, with a
VSWR of better that 1.8:1. Other options such folded dipoles with 50 ohm impedance, co-linears
and quarter wave whips with suitable ground planes are also suitable. A high quality aerial
installation will provide additional performance and reliability.
Note: The 20-62 is designed to operate reliably over large distances, however the actual distance
can vary depending on the type of location, obstructions, local radio interference and antenna
system used.
Recommended aerial suppliers:
Region
Supplier
New Zealand
Hi-Tec Aerials NZ Ltd
http://www.hi-tec-aerials.co.nz/
Pacific Aerials Ltd
http://www.pacificaerials.co.nz/
Australia
RFI Wireless
http://www.rfiwireless.com.au/
UK / Europe
Procom (antennaPRO Ltd)
http://www.procomuk.co.uk/