Inquiry (采购产品): HUM ZAPPER Is there a Catalog or a Users Manual for a Hum Zapper? The use of the modules are covered in noise mitigation and testing, but It is time consuming and sometime confusing. Any help at all will be appreciated. **** Hidden Message ***** Joe Smith 49221 Company: Verizon North Communications E-mail: joe.f.smith@verizon.com **** Hidden Message ***** joe.f.smith@verizon.com
