– ID timer with Morse code output – Keyed CW, audio, and PTT outputs – PTT/audio combination for keying HTs – 2-channel audio mixer for repeater audio & ID – Filtering & de-emphasis for repeater audio – Simple serial port configuration In a nutshell, the ID-O-Matic II is the original ID-O-Matic, combined with the features…
The inductor calculator presented on this page is unique in that it employs the n=0 sheath helix waveguide mode to determine the inductance of a coil, irrespective of its electrical length. This allows for more accurate inductance predictions at high frequencies. Furthermore, the calculator closely follows the National Institute of Standards and Technology (NIST) methodology…
A digital voice recorder circuit that used for voice recording and stored inside the IC. This circuit can keep the voice recording for approx. 100 years without power supply and repeat recording up to one million times. Technical specifications: – Power supply : 3-6VDC. – Consumption : 120mA max. @ 6VDC. – Recording time :…
TrxAVR-Picastar provides an alternative controller and user interface for a Picastar Transceiver. Picastar is a outstanding HF transceiver designed by Peter Rhodes, G3XJP. Picastar construction information, software and setup and operational instructions are available on G3XJP’s Picaproject Yahoo Group. The support group for Picastar is the Picastar-users Yahoo group. The support group for TrxAVR-Picastar will…
The WBR – A Simple High Performance Regen Receiver for 40M by N1BYT. Photo by AA7EE A few weeks ago when a sizable order of parts arrived from Dan’s Small Parts And Kits, the plan was to use them (along with the parts from a few smaller orders from kitsandparts.com and Mouser) as the basis…