Antennas
WAOK-AM Uses Method of Moments Proof
The FCC has allowed stations to use Method of Moments proofs, and WAOK-AM in Atlanta, is one of the first stations to implement the technology.
Method of Moments Modeling
In February 2009 the FCC formally permitted the use of Method of Moments (MoM) modeling. Kevin McNamara explains the concepts of using this tool.
Understanding Tee Networks
The tee network seems almost magical as it has the ability to transform between almost any two complex impedances using only reactive elements.
Directional Antenna Basics
Jeremy Ruck reviews the basics of directional antenna arrays.
SPX Communication Technology Dielectric DCR-XL
Low-power antenna
Method of Moment Proofs
At the heart of the moment method proof is a computer model using an appropriate software package, however, the moment method proof, is not applicable in all cases or array designs.
ERI-Electronics Research 780/783 Series
FM band pass filters
Antenna Trouble at the Empire State Building
The master antenna system mounted on the Empire State Building suffered a major lower bay failure on Oct. 18, 2010.
International Tower Lighting (ITL) RLC-201-GUI, RLC-203-GUI
GPS controllers
L-com Global Connectivity Yagi Antennas
900MHz antennas
viaRadio DSR Series
DVB satellite receivers
Dielectric DCR-S
Sidemount FM antenna
Shively Labs 6020
Broadband dipole
ERI Axiom
Four-bay broadband FM antenna
Bird Technologies Group 5011, 5011-EF, 5015, 5015-EF
Terminating power sensors
The Phasor
The upcoming generation of radio engineers will encounter a new ease of measurement as a fact of the Commission's new directional antenna proof rules.
Using the operating impedance bridge
The development of the operating impedance bridge by Delta Electronics about 40 years ago made antenna impedance measurements not only much easier to perform, but more accurate.
Thoughts about NEC 4-1
As time passed and DA design work received increasing attention, it became obvious that more information was needed about how the antenna worked in its environment once constructed.
First MoM AM Applications Granted
WKOX and WRCA are among the first stations to be licensed under the new rules.
Do you remember MEOV?
MEOV offered a wonderful means of providing a way around a potential difficulty in meeting the approved radiation pattern.
Station Upgrade: KEXS
It's not uncommon to find elevated tower bases, but to see a transmitter building sitting on 9' stilts is rather unusual. See why KEXS chose to not only raise the roof but also raise the entire building.
Kintronic Labs Kinstar
The first field-installed Kinstar antenna system is in use at KCST-AM, Florence, OR.
Dielectric, Exir Broadcasting and Telecom Create Sales Partnership
The agreement expands Dielectic's product line and allows Exir to sell Dielectric products.
Transmission lines
A transmission line is a far more complex piece of equipment than many people realize. In its simplest form it may be considered as just a pair of wires merely carrying ac power.
FCC adopts new methodology for AM proofs
At long last, the FCC is permitting directional AM stations and permittees to submit proofs of performance using moment modeling in lieu of proofs based on extensive field measurements.
