Cotek S300 Series Specifications

Product Review and Short Takes from QST Magazine Copyright © 2009 by the American Radio Relay League Inc. All rights reserved. April 2009 Product

From April 2009 QST © ARRLPRODUCT REVIEWMark J. Wilson, K1RO  Product Review Editor  [email protected] LineReviewed by Howard Robins, W1HSRARRL Co

From April 2009 QST © ARRLend, overvoltage protection kicks in at 15.3 V dc. An ac circuit breaker (16 A) trips if you overload the output

From April 2009 QST © ARRLPowerBright PW2300-12-1Serial number: 060042186Manufacturer’s SpecificationsPower requirement: 10-15.5 V dc.Output voltage: 1

From April 2009 QST © ARRLNo-load current drain is the highest in this group — 1.7 A.In the Lab, this inverter by far had the lowest conducted

From April 2009 QST © ARRLSome electronic devices intention-ally generate RF but do not intention-ally radiate it. For example, RF gen-erated by compu

From April 2009 QST © ARRLTripp-Lite PowerVerter PV-1250FCFreq Load (W) (MHz) 0 100 500 0.150 102.3 108.4 107.8 1.66

From April 2009 QST © ARRLmaking it usable on most worldwide power mains. The MH-C9000 will also accept 12 V dc from a car or boat system, so it

From April 2009 QST © ARRLAnother solution is to place an RF choke at the antenna end of the feed line. You can make one by wrapping about 20 turns of