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1. What type of RF cable would you recommend?
2. Can you recommend a supplier (UK)?
3. Am I right in thinking that SMA connectors are the best for these frequencies?
Many thanks for any help.
Depends on length needed, frequency and the depth of your pocket1. What type of RF cable would you recommend?
A long run's losses need to be kept to a minimum so I would use Westflex 103 or better for 70cm and lower frequencies as it can found at a reasonable price in 100m drums. W103 can also be used at 23cm for short runs of less than 10m. There are more expensive cables such as the Ecoflex https://www.thedxshop.com/ecoflex.html and Messi & Paloni range https://www.hamradio.co.uk/accessories- ... -pc-28.php that perform better.
SMA connectors are fine for linking the modular components of the Portsdown system with small diameter cables but for the larger diameter antenna feeder coaxial cables you will need the special N connectors available from the same sources as the cable. I have used crimp versions of SMA connectors for 10mm diameter cables but it didn't result in a reliable or mechanically sound termination.3. Am I right in thinking that SMA connectors are the best for these frequencies?