Im planning on building a Arrow antenna Array. And plan on needing about 20 to 50 ft of coax. 50ft for the house setup. And 20ft for the mobile setup( setting it up as im parked)…
Arrow sell 25ft of coax in a set of 5 for their antenna set. But for anything longer you’ll need to make your own.
Apart from loss considerations, the actual coax type doesn’t really matter.
But for phase matching considerations, you will want to use the same coax from the same roll for each cable. You will also need to take care to match the lengths of each coax as closely as you can. You can use a VNA like the NanoVNA to measure the lengths accurately.
This is very dependent upon the frequencies you will be operating in. 50 feet of loss can be substantial. For example using a coax calculator such as the one provided at https://timesmicrowave.com/calculator/ will allow you to find the proper type of coax for the frequency in question. There are others available, but Times is a major manufacturer of Coax and an industry standard. If you do not want to build your own cables, I would take the product family and model of coax over to ABR Industries website and use the Amateur or Commercial links to custom build the cables you need. They are a great company and the quality of their cables are excellent.
For 50feet of LMR-400-UF (ultra flex) then you would have a loss of approximately 1.8dB of power. When receiving weak signals this could cause issues. LMR-600-UF which is larger would be only 1dB of loss. Additionally, the connectors you choose can also cause issues with loss. Each connector will have an additional loss, but usually negligible. Type N for example is an excellent all around connector. You could use short jumpers to adapt from the BNC on the Arrow Antenna and the SMA connectors on the Kraken. If you used really short jumpers of say LMR-240-UF with SMA - Type N say a 6inch that would give you the strain relief (otherwise purchasing test instrument grade cables which have a very high quality control would also give you more loss protection). The higher in frequency you go the larger the primary cable is going to be needed.