esr meter

Receiving loop aerial for 1.8 MHz - Bulding notes of a receiving loop antenna for 160 meters band

K3KY's Short Beverage  ^pop - Originally planned as an 80/160 Beverage, this antenna is a terrific performer on 40 and 30 meters

W7IUV 160 Meters vertical  ^pop - 90 foot tall top loaded vertical for 160 meters

QM5 Yagi for 2 meters band - The QM5 antenna is a simple 5 elements Yagi with 1.88 m boom length for the lower 144 MHz SSB/MGM band, I used it mainly for Sporadic-E and MS contacts. It exhibits a forward gain of 9.17 dBd; i.e. 11.3 dB forward gain over the isotropic radiator, while the F/R is about 11.5 dB. Elements

8 Element Quad for 145 Mhz  ^{updated  pop} - 8 elements quad antenna for 2 meters band, centered on 145 Mhz

A dipole for 6 meters band  ^pop - Six meters band dipole horizontal or vertical

Switchable Antenna 80/160 meters band Priority listing - A switchable antenna for 80/160 meters by IK1ZOY. A new version of a 1/4L 80 m. dipole modified for use in 160 m. band. using it's own coaxial cable feeder to wrap a coil.

Comparison of Beverage antenna - A ranking of receiving antennas based on noise being evenly distributed in all directions. These rankings are most accurate in the frequency range of AM broadcast, 160 or 80 meter bands

A Small Loop Antenna for Forty Meters  ^pop - Article on a small loop antenna for forty meters band by Ben Smith, W4KSY

Quad loop antenna for 10 meters - A 27-28 Mhz quad loop antenna by Bernard Mourot F6BCU in french

2-Element Moxon Rectangle for 10 meters band - 10 meters band aluminum 2-Element Moxon rectangle

40m Short Antenna  ^pop - GM4JMU shortened dipole for 40 meters band

Tango Delta Tango Dx - 11 meter dx group from The Netherlands

WB4WOR Propagation Beacons - WB4WOR Propagation Beacon on 6 and 10 meters Jointly Owned and Operated by the Broadcast Packet and Repeater Group and Piedmont Amateur Radio GroupRandleman, NC USA

MF and HF Amateur Radio Band Charts - Easy to read set of band charts for the amateur radio MF and HF bands: 160, 80, 60, 40, 30, 20, 17, 15, 12, and 10 meter by W5JCK

Meters Inc Priority listing - Middle East Tennessee Emergency Radio Service

Brand Electronics - Power meters

Wavenode SWR and RF wattmeter - The WN-1 is a precision RF Watt, SWR, and DC Meter to digitally monitor your amateur radio and emergency communications stations.

An Introduction to FlexNet - Features and operation of FlexNet packet networking software are discussed. Details of the software architecture, RMNC and MS-DOS hardware platforms, applications, user interface, adaptive parameters, and routing techniques are presented.

eBay Store - ON Antennas J Pole - Buy ham amateur radio, antenna, j pole items from ON ANTENNAS J POLE eBay Store. We sell ham amateur radio, stealth wire, 2 meter, vertical items on eBay.

Sparkys cb shack - CB and 10 Meter Amateur Radio Sales and Service. Free Custom Tuning. Free Shipping. Home of the Sparktune Modulator. Give your radio that Blazing Modulation We stock Galaxy, Cobra, magnum, Connex, General,Uniden, Workman, Dosy, Hustler, Turner

Caracol Radio - One of several Colombian broadcasting networks heard on AM and FM and worldwide on 5076 kHz in the 60 meter band.

Radio Pirania - Pirate statio based in chile transmitting on 48 meters band

Cobracom - Oscilloscope, Realtime spectrum analyzer, Impedance meter, RLC bridge and signal generator for Windows. Is a Windows application that converts your PC into a powerful dual-trace signal analyzer (oscilloscope, FFT etc...) . Uses your PC sound card as an Analog-to-Digital a Converter to digitize any input waveform and as Digital-to-analog Converter for the signal generator. True 24 bit adc/dac 48K/96k/192k sampes/sec.

50 MHZ power amplifier - YU1AW power amplifier for 6 meters band using 2xGI7B