HF and VHF Journal Articles, 2004 at the Free Technical Library

Free technical library

FREE TECH LIBRARY
Contents of journals with annotations / Magazine HF and VHF

We invite you to visit our Free technical library.

Magazine HF and VHF

Search books, magazines and collections click here.

For a quick free download, you can immediately go to to the appropriate section of the Library

Alphabetical list articles with annotations, from journals published in 2004 in the journal KV and VHF:

1-element square

3-element collinear VHF antenna

DXCC - via worldwide hardware magazine

RTTY interface

Sloper antenna on low bands

Antenna poor dvoechnik

Antenna compact pyramid

Antenna tuner

Asymmetric GP

Returning to the Single Board Universal Path

All Band Antenna Transformed Pyramid

Highly dynamic first H-type mixer for RA3AO

High altitude invisible antennas

G.Tyapichev, RA3XB

Frequency generators and multipliers for VHF equipment

GUN - GPD

Double square switchable pattern

Bidirectional Antennas

EC Band Pass Filters

Dinatron effect in a tetrode

Addition to the program Morse Trainer

Driver and power amplifier for HDK-97

SWR measurement

artificial earth

Are quartz filters on modern resonators simple?

501 kHz CW crystal oscillator

HF transceiver ICOM IC-703

Echo repeater and digital recorder controller

Corrector for the digital scale of the Volna-M transceiver

SWR meter

Lamp push-pull silo

Microphones and headsets

Multi-band antenna Inverted L

Multi-Range Frames Shortened by Capacitance

Modernization of the digital scale in the R-326M radio receiver

American Carrot, or 160m Cone-shaped Vertical

Directional three-element HF antenna

About the cold tuning of the PL-loop

One dipole - two bands

Transceiver main board

[1] [2] [3]

Search in books, magazines and collections

Enter the title of the article or book, in whole or in part. For example, charger, generator, timer...

<< Back

Latest news of science and technology, new electronics:

Artificial leather for touch emulation 15.04.2024

In a modern technology world where distance is becoming increasingly commonplace, maintaining connection and a sense of closeness is important. Recent developments in artificial skin by German scientists from Saarland University represent a new era in virtual interactions. German researchers from Saarland University have developed ultra-thin films that can transmit the sensation of touch over a distance. This cutting-edge technology provides new opportunities for virtual communication, especially for those who find themselves far from their loved ones. The ultra-thin films developed by the researchers, just 50 micrometers thick, can be integrated into textiles and worn like a second skin. These films act as sensors that recognize tactile signals from mom or dad, and as actuators that transmit these movements to the baby. Parents' touch to the fabric activates sensors that react to pressure and deform the ultra-thin film. This ... >>

Petgugu Global cat litter 15.04.2024

Taking care of pets can often be a challenge, especially when it comes to keeping your home clean. A new interesting solution from the Petgugu Global startup has been presented, which will make life easier for cat owners and help them keep their home perfectly clean and tidy. Startup Petgugu Global has unveiled a unique cat toilet that can automatically flush feces, keeping your home clean and fresh. This innovative device is equipped with various smart sensors that monitor your pet's toilet activity and activate to automatically clean after use. The device connects to the sewer system and ensures efficient waste removal without the need for intervention from the owner. Additionally, the toilet has a large flushable storage capacity, making it ideal for multi-cat households. The Petgugu cat litter bowl is designed for use with water-soluble litters and offers a range of additional ... >>

The attractiveness of caring men 14.04.2024

The stereotype that women prefer "bad boys" has long been widespread. However, recent research conducted by British scientists from Monash University offers a new perspective on this issue. They looked at how women responded to men's emotional responsibility and willingness to help others. The study's findings could change our understanding of what makes men attractive to women. A study conducted by scientists from Monash University leads to new findings about men's attractiveness to women. In the experiment, women were shown photographs of men with brief stories about their behavior in various situations, including their reaction to an encounter with a homeless person. Some of the men ignored the homeless man, while others helped him, such as buying him food. A study found that men who showed empathy and kindness were more attractive to women compared to men who showed empathy and kindness. ... >>

Random news from the Archive

Music is the secret of children's progress 14.04.2018

European experts conducted an interesting experiment that showed what can affect the performance of children.

As it turned out, music lessons in art schools can positively influence short-term memory in children. A positive effect was also noticed in the study of a foreign language by a child.

Also, the authors of the work emphasized that almost all music lessons were removed from schools, but it is these lessons that have a positive effect on the mental and intellectual abilities of the child.

The study was conducted with the participation of children from Dutch schools. Specialists monitored children who attend music lessons, as well as those who do not.

After 2,5 years, it was noticed that music helps to improve the performance of schoolchildren, develop their visual and spatial memory.

News feed of science and technology, new electronics

Interesting materials of the Free Technical Library:

▪ site section Parameters, analogues, marking of radio components. Article selection

▪ article Theory of evolution of the organic world. History and essence of scientific discovery

▪ article Biofuel - for harm or for benefit? Detailed answer

▪ article Inspector of passenger transport. Job description

▪ article Designs based on the KR1182PM1 chip. Encyclopedia of radio electronics and electrical engineering

▪ GIR article for the CB band. Encyclopedia of radio electronics and electrical engineering

All languages of this page

Home page | Library | Articles | Website map | Site Reviews