Antennas and more questions from the Technician exam pool.
A discone antenna is a version of a biconical antenna in which one of the cones is replaced by a disc. It is usually mounted vertically, with the disc at the top and the cone beneath. Omnidirectional, vertically polarized and with ... Read more
ACOM A1200S Five inch (5”) (108x65mm) high resolution color display, 800×480 pixels and 24-bits colors. The final stage uses field effect (MOSFET) transistors type BLF188 from NXP, designed to withstand high mismatch (SWR) at the outp... Read more
Product Description Frequency 136-174 and 400-480MHz (Any 10MHZ frequency space or frequency point selectable,such as VHF: 140-150mhz&UHF:430-440mhz) Frequency space 10MHz Supply 12-14V Input energy/power 6-8A Input power 3.0-... Read more
The ARRL Repeater Directory ® — introduced this week for 2015-2016 — has a newly launched companion app for Apple® iOS® devices. iPhone®, iPad® and iPod touch® users can download the app at no cost from Apple’s App Store℠, which requ... Read more