channel pass

Receiving antenna for low bands  ^pop - K9AY loop antenna installed at PA6Z Contest group. This is a receiving antennas for the low bands (160m, 80m and 40m). Include schematics and info on a building the control box, preamplifier and low-pass filter

Fun With Tubes - A noncommercial site operated by Max Robinson and dedicated to passing on and preserving knowledge of vacuum tube circuits and techniques.

San Gorgonio Pass Amateur Radio Club

W6SD San Fernando Valley Amateur Radio Club - We represent a mixed bag of lifestyles, with one thing in common our passion for Amateur Radio

Grants Pass Police Live Feed - Tune in live to the Grants Pass DPS police radio and Josephine County Sheriff's Office radio feeds.

Ontario California - Police - Transmitting channels 1-2-3-4, hosted by code-3.org

Douglas: Live Douglas County Sheriff - Douglas County Sheriff dispatch channel

Radio Frequency Systems - RFS is a global designer and manufacturer of cable and antenna systems plus active and passive RF conditioning modules, providing total-package solutions for wireless infrastructure.

UHF Reject filter - This filter is a 0.1 dB Tschebychev lowpass with a rejection of 90 dB or better at 430 MHz, and 0.2 dB insertion loss at 72 MHz.

A new method of radio direction finding Priority listing - A method of finding radio sources with antennas based on omni-directionality (the less directional the better coverage). Uses energy levels and some sophisticated math (encompassed in a free software download on the site) to find x,y,z coordinates of the fox relative to the center of your antenna array. Can be overlayed on a GPS map to help you locate in real-time.

MCP-D7G TH-D7A TH-D7E Memory Control - This program is for editing Memory Channels APRS, SKY COMMAND II and various settings on the kenwood amateur radio TH-D7A(G)/D7A(G2.0)/D7E(G2.0) A similar version exist for TH-D7 generation 1.

Right Channel Radios - Carry a wide selection of CB radios, CB radio antennas, mounting kits, CB radio mounting hardware, and related accessories.

Helical - A graphics-intensive bandpass filter program based on the helical resonator.

DSCdecoder - DSCdecoder decodes the DSC digital signals from ships and coast stations using the sound card in your PC. You need a suitable MF, HF or VHF band radio receiver tuned to one of the DSC distress and calling channels or to one of the Navtex channels

TS-2000/B2000 Memory Control Program - This program is for downloading, uploading the memory channels and various settings on the TS-2000(X)/B2000. To write data to or read the data from the TS-2000(X)/B2000 memory, an RS-232C straight cable is required. Runs on Windows 98.

Memory Control Program MCP-1A - Kenwood TM-271A / TM-271E / TM-471A. By utilizing this software, you can enjoy the versatility of the TM-271 Series transceiver through the memory channel management and edit functions.

TH-F6A / TH-F7A / TH-F7E Memory Control Program - By utilizing this software, you can enjoy the versatility of the TH-F6/ F7 transceivers through the memory channel management and edit functions.

Diplexer - This program expedites the design of lumped-element diplexers using both the lowpass/highpass and the bandpass/bandstop topologies.

Interferences and filtering - General information on Filter passbands, interferences, TVI and RFI problems

YCCC 6 Band Receive Bandpass filter - This is a 6 band receive only filter designed to protect your receiver front end and provide 45dB reject at the stop bands.

The NVARC Ugly ¯ Filter Project - Project to build sets of band pass transmitting filters for reducing the interference between HF transceivers operated in close proximity

Narrow Band-Pass filter for HF - Band-pass filters can be critical components in competitive stations. This setup may help put your station on the map.

Clean Up Your Signals with Band-Pass Filters - These inexpensive, easily built filters can be the buffer you need between the signals you want to hear and send and those you don’t!

Clean Up Your Signals with Band-Pass Filters part 2 - Part 2—You’re now much closer to saying goodbye to your unwanted signal problems!

Band-Pass Filters for HF Transceivers - Do your multiple-transmitter field day or contest efforts suffer from intrastation interference ?