| To: | topband@contesting.com |
|---|---|
| Subject: | Re: Topband: 2 wire reversible Beverage- KF4ITA Mikek |
| From: | Jim Brown <jim@audiosystemsgroup.com> |
| Reply-to: | jim@audiosystemsgroup.com |
| Date: | Sat, 9 May 2020 20:13:12 -0700 |
| List-post: | <mailto:topband@contesting.com> |
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 |
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