Diamond Antenna NR770HBNMO with K515SNMO mobile antenna review
After three years of mobile operation, I review the Diamond Antenna NR770HBNMO with appropriate K515SNMO mount including pattern measurements.
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Roof-racking VHF antennas on SUV
Thule roof rails increased my VHF antenna mounting options on my Subaru Forester.
HT Antenna Comparisons
Does one really need to upgrade the antenna that came with your HT? Presented are EIRP measurements of various aftermarket HT aerials to help understand the trade space.
When antenna tilt matters
We test a popular VHF/UHF dual band antenna at various angles to reveal antenna tilt on a vehicle matters only in certain circumstances.
Diamond NR770HBNMO vs. Comet M-24M
The Diamond Antenna NR770HBNMO paired with their K515S insulated luggage rack mount provides measurable and observable upgrade for my 2015 Subaru Forester 2m/440 mobile.
Radials mitigate feedline and mast currents, tests reveal
Antenna patterns from a Diamond X50NA reveal how radials of proper size mitigate current running down the feedline and mounting structure.
The limits of aluminum antenna tubing
Aluminum comes in varying grades and the Diamond Antenna CP22E demonstrates why not all aluminum is created equal.
Low profile 2m/440 mobile installation
Video showcases a nice, clean, professional installation of a 2m/440 transceiver into Hyundai sedan.
Runt radials
Antennas shipping with ineffective antenna decoupling are on the rise as manufacturers daringly advocate 1/12 wave radials work.
Diamond CP22E Antenna Review
Despite some antenna gain hype, the Diamond Antenna CP22E 2m base station antenna is a remarkable design achieving 5 dBi directivity in a slim low-profile design.
Decibel hell & the reign of antenna gain pain
A short history of antenna gain terminology and some guidance to muddle your way through some of the nefarious alternative facts you may encounter.
APRS AT Golden Packet 2016 NoVA Report
Using modest gear, station #6 of the Appalachian Trail Golden Packet exercise confirms 9600 bps works well for passing packets north and south.
APRS Golden Packet Gear
Shown is a minimal, but effective collection of gear for the APRS Golden Packet Appalachian Trail event.
Extreme NMO – Subaru, Silver and the 60″ Whip
A reinforced Subaru through-hole NMO installation using silver epoxy and a metal plate stiffener accommodates the 62 inch Diamond SG7900A dual-band mobile antenna.