- Sells leading-edge voice and digital communications products to the world-wide military, government, industrial, and amateur radio marketplaces.
Bluetooth Remote Audio/PTT, Rig Controller with Audio & PTT , HamLinkUSB Rig Control, Noise filtersm antenna analyzers, Multimode Data Controller, TNC, Packet Radio Terminal Node Controller. USB2RS232
- Signatec manufactures pc based data acquisition waveform digitizers pci daq boards, digital signal processing pci dsp boards, waveform signal generator pci dac boards, and real time waveform recording products for the signal technology market.
- Filtroid is an extremely easy-to-use program for synthesizing microwave filters. It can be used to design practically all filter types from audio to microwave frequencies as well as amplitude and delay equalizers and attenuators.
- Free windows comprehensive tool for Finite Impulse Response (FIR) filter design
- A free computer aided design program to help users without special expertise in filter design to create filters using Linear Technology's monolithic filter ICs. With FilterCAD, you can design lowpass, highpass, bandpass and notch filters
- ADE Filter Design and analysis is a free for download windows program to design filters
AADE Filter Design
- Freeware windows programs to design Butterworth, Chebyshev, Elliptic (Caur), Bessel, Legendre and Linear Phase low-pass, high-pass, band-Pass, and band-reject filters. Coupled Resonator band-pass filters
- ADIF Master is a highly user configurable Windows application for working with HAM radio logbooks.
ADIF Master allows to convert any existing Cabrillo, TR, CT logs or a part of it into an ADIF file. Also you can use ADIF Master to open and modify existing ADIF logs using customizable filters, add, remove and modify ADIF tags and entries
TVi Basics - making filters
- TV Interference filters, making TVI filters, coaxial filters to eliminate TV interferences caused by radio frequency
5th order High Pass VHF Filter
- Sometimes many VHF-UHF modern transceivers have problems with BROADCAST Interference and CROSS-modulation from FM commercial broadcast stations this article shows a simple Batteworth HI-Pass VHF Filter to reduce this problem
KI5YN QLF Filter
- A microprocessor based interface designed to go between a standard Morse code key and a radio transmitter. The circuit receives a signal from the key, processes it, and re-transmits it to the radio.