The PDF file on the web has been corrected. This file includes color photos as well as the firmware for the PIC16F88 microcontroller for "A Frequency Standard for Today's WWVB." It also includes the PDF files for Figures 7, 12b, and 13, which had errors in the printed version of this artilce. Various files for the Hands-On SDR columnĪ PLL Based Stand-Alone Signal Generator with I and Q Outputsĭetermination of Soil Electrical Characteristics Using a Low Dipole Geodetic and Maidenhead Locator System Conversion
Various files for the Hands On SDR ColumnĮlevation and Pseudo-Brewster Angle Formation of Ground-Mounted Vertical AntennasĬalculation of FM and AM Noise Signals of Colpitts Oscillators in the Time Domain
Python code files for “Crystal Parameter Measurements Simplified” Measure Crystal Parameters Using a Vector Impedance MeterĪn Engineering Tool for Simulating Receiverīuilding an LDMOS Amplifier with an Arduino InterfaceĮxternal Processing for Controlled Envelope Single Sideband Reflow Soldering for the Radio Amateur - Revisited Wide Range Field Strength Meter and The Ultimate Keyer Remote Operating with a Raspberry Pi, Fldigi/Flrig, WSJT-X, and NoMachine Grant Saviers, KZ1W, and Robert Fanfant, N7QT The H40TT "Suitcase" Vertical Antennas for 160 m to 17 m Bands Multi-Band VHF+ Local Oscillator and RemoteĪ Simple Inexpensive Accurate Vector ImpedanceĬollection of Broadband HF Antennas Designs-Part-1 RF Exposure Safety for a 70 cm Ban Collinear Dipole Arrayĭesigning Antenna Systems for Low Common Mode Current in Coaxial Feedįixture and Method for Measuring Q of Inductors Using a VNA or Spectrum AnalyzerĬontrolling a 16x2 LCD with the Texas Instruments MSP430G2553 Monolithic Filters (10.7 MHz - 21.4 MHz - 45.0 MHz - 70.Do-It-Yourself NMEA Based GPS Timer Displayĭo-It Yourself nmea Based GPS Timer Display - link for code Typical topologies include bandpass and bandreject or notch available in several configurations: Surface Mount, Thru-Hole, Pin and Connectorized. Center Frequency range covers DC to 250 MHz with bandwidths that range from 0.01% to 2.5%. NIC’s crystal product line consists of a variety of standard frequencies and custom designs. Given the unique design requirements for crystal filters we use well established design and manufacturing techniques which are supported by the most advanced computerized design and test software and equipment available. We manufacture our own filter crystals for the finest in precision and reliable performance. NIC’s success was built on our Crystal Filter capabilities. You can also use the "Product Search" tool to filter your search results. Click the "Crystal Filter Capabilities" link below to view a list of Crystal filters manufactured by NIC.
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