Call Search
     

New to Ham Radio?
My Profile

Community
Articles
Forums
News
Reviews
Friends Remembered
Strays
Survey Question

Operating
Contesting
DX Cluster Spots
Propagation

Resources
Calendar
Classifieds
Ham Exams
Ham Links
List Archives
News Articles
Product Reviews
QSL Managers

Site Info
eHam Help (FAQ)
Support the site
The eHam Team
Advertising Info
Vision Statement
About eHam.net

   Home   Help Search  
Pages: [1]   Go Down
  Print  
Author Topic: Do I need isolation transformers with battery operation?  (Read 3247 times)
K7NHB
Member

Posts: 226




Ignore
« on: June 27, 2013, 09:51:40 AM »

I'm trying to configure the KX3 for portable work and using a Griffin imic for an external sound card. In some posts for setting up Nap3 software, I've read about using an Isolation transformer between the I/Q output and the sound card - like a $20 Rad Shk. device to prevent ground loops. I can imagine that if everything is somehow connected via AC power from the wall. But if the KX3 is on it's own independent battery and the Netbook is on it's own independent battery, is that an issue. The transformer is just one more thing to buy/carry/hookup/loose so I'd rather avoid it if possible. But if it makes a solid, or necessary, contribution, then I'll include it.

73, Paul K7NHB
Logged
K1CJS
Member

Posts: 6034




Ignore
« Reply #1 on: June 27, 2013, 01:16:17 PM »

In some rigs it is necessary to avoid connecting (commoning) the input(s) and the output(s) together at all.  It may damage the rig wiring, so if they recommend using an isolation transformer, it's best to do so--even if the rig and any ancillary equipment do not share common power.
Logged
Pages: [1]   Go Up
  Print  
 
Jump to:  

Powered by MySQL Powered by PHP Powered by SMF 1.1.11 | SMF © 2006-2009, Simple Machines LLC Valid XHTML 1.0! Valid CSS!