gordo’s short circuits

Two HF Tuner Considerations

GORDON WEST

Comet / NCG CAT-300 and LDG Z-100A For those high-frequency operators looking for increased compact manual antenna tuner performance, I tested the new Comet / NCG Company CAT-300 manual tuner, with great success. Increased RF output performance is achieved from a slightly larger internal inductance coil, along with large(er) high(er) quality variable capacitors. The Comet CAT-300 can easily handle up to 300 watts, once you tune it up at a more reasonable level, like 50 watts. Don’t tune on high power CW and rotate the inductance click-click switch on any manual tuner. This could arc the coil contacts. First tune up on RECEIVE! Yes, listen for your rig’s background band noise to increase at resonance. Step one is to set the inductance switch to the band you wish to tune,…

You're reading a preview of

CQ Amateur Radio (Digital) - 1 Issue, March 2023

DiscountMags is a licensed distributor (not a publisher) of the above content and Publication through Zinio LLC. Accordingly, we have no editorial control over the Publications. Any opinions, advice, statements, services, offers or other information or content expressed or made available by third parties, including those made in Publications offered on our website, are those of the respective author(s) or publisher(s) and not of DiscountMags. DiscountMags does not guarantee the accuracy, completeness, truthfulness, or usefulness of all or any portion of any publication or any services or offers made by third parties, nor will we be liable for any loss or damage caused by your reliance on information contained in any Publication, or your use of services offered, or your acceptance of any offers made through the Service or the Publications. For content removal requests, please contact Zinio.