On 8/7/2014 6:52 PM, bill.va...@gmail.com wrote:
Has anyone tried unshielded cable?; Cat 5E cable?;or whatever!
All of the unshielded CATx cables have very good immunity to external RF and noise if each signaling circuit is carried by one of the twisted pairs. The CATx cable carries RS232, which requires two pairs. The two remaining pairs connect the key line and logic circuit (ACC2).
In general, a high quality twisted pair is far more important than a cable shield ff the CATx cable is properly wired (that is, one pair for each signalling circuit). The primary advantage of is higher CAT spec is reduced crosstalk between pairs, which is a big deal for Ethernet, but much less so for applications like this.
73, Jim K9YC ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
