On 5/9/2020 6:46 PM, MU 4CX250B wrote:
I've also heard that the native impedance a twisted pair of WD1A/TT is about 150ohms.
I think you mean Zo, characteristic impedance. I haven't had any to measure, but that sounds high for any form of twisted pair. Twisted shielded pair audio cable is in the range of 70 ohms, a digital version is around 110 ohms, CAT5/6/7 are all 100 ohms.
73, Jim K9YC _________________ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
