atc live

Simple HF Baluns for 50/75 ohm coax - Show diagrams, winding methods and tables of some 1:1 and 4:1 baluns for 1.8 - 30 MHz suitable for use up to 200W (400W peak) on systems using 50 or 75 ohm coaxial cable input where SWR should not exceed 1.6:1.

Balanced Self Matching Feed Line System - KE4UYP designed this Balanced Self Matching Feed Line System for people who want the very best feed line they can have on a Monobanded antenna

Some plain facts about multiband vertical antennas - There is considerable confusion as to what exactly a multiband vertical antenna is. The confusion concerns the method of feed, how much mismatch one can expect, how many radials are required, how the particular antenna is built for multiband use, plus some other points.

Simple VHF Gamma Match - Plan of a simple VHF & UHF Gamma match contrstruction

10 m Aerial Matching Unit - This simple matching unit will allow a 10 meters aerial to be used right across the 10m band without the need to physically adjust the elements, and offers a virtual 1:1 VSWR at 50 ohms impedance to the transmitter.

Patch antenna for APT - The patch, or microstrip, antenna has become a common workhorse for the microwave spectrum from about 1 GHz to tens of GHz. This type of antenna consists of two conducting layers separated by a dielectric to form an extended capacitor by WlHDX

A stealth HF antenna - A wire antenna matched with a 4:1 balun that can operate with the help of a tuner on all hf bands. By IW2EVK in italian

K5ZD contest audio live - During some of the serious contest operations from K5ZD, we will enable live audio streaming direct from the headphones

The Hurricane Watch Net - The Hurricane Watch Net, Amateur Radio Serving the National Hurricane Center Since 1965. The HWN provides up to date tropical weather information for the Atlantic and Eastern Pacific. Subscribe for tropical weather email.

GlobalTuners - GlobalTuners provides access to remotely controlled radio receivers over the internet. You can listen to ham radio, shortwave radio, air traffic control, airband, ACARS, airports and much more. Tune remotely controlled receivers from all over the world with your browser and listen live.

Scan Merrimack Valley - This site contains the Scan Merrimack Valley Fire Feed which has live audio from Area Fire Departments in the Merrimack River Valley, Massachusetts.

Norfolk police radio feed - Norfolk police department live radio by oceanviewcommunications HRConnect

Dauphin co. PA live feed - Dauphin County Pennsylvania (PA) PD Fire Scanner

Suffolk police and fire dispatch - Suffolk police department

Butte County California Public Safety Scanner - Live scanner feed from Butte County, paradise/upper ridge, chico , california public safety

Santa Barbara, CA Police Scanner - Listen to live scanner traffic from Santa Barbara, CA for Police, Fire, EMS, Sheriff, CHP.

Boston Police Radio Scanner - Broadcastify listen live audio feed from Boston Radio Police Fire and EMS

North California Live Scanner - Listen to a law enforcement live scanner from north california usa. Areas covered include Red Bluff, Mendocino, Shasta-Trinity, Tehama and Butte

Setting up a live broadcast on the internet - This tutorial will teach you what you need to know so you can broadcast your live radio feed over the Internet yourself.

W3AD Cabin Camera - Live controllable web cam

KE1FO Webcam - Live webcam on antenna tower and weather conditions

The ElectraSlide Antenna - Modification of the DK3 design by Don Johnson, W6AAQ. No voltage dropping, operates on the full 12 volts. The control switch and the matching toroid are supplied. All you need is a standard 3/8 by 24 thread ballmount, 2 wire sheilded microphone cable for control wiring, and a CB whip cut to resonance.

Operating Meteorscatter - Meteorscatter (MS) describes a propagation mode whereby the signal is reflected from rather small ionised patches in the E-region of the ionosphere.

Tutorial on ferrite balun cores - Toroid cores, ferrite rods a good electrical tutorial on baluns

HRIS2 Priority listing - This program can be used for statistics of sending QSL. Also it is possible to use her as the help data on DX-ing (DX VIA, ADDRESS MNG, IOTA-ped.) The information is brought in base delivery of the program on " DX via " and " Address QSL mng " from bulletins 425 (with 205 on 858) by US7IB