SRC CLOCK SYNCHRONIZED WITH NATIONAL

SRC CLOCK SYNCHRONIZED WITH NATIONAL

INTRODUCTION

Hi, do you remember when a few years ago, the RAI on its TV channels broadcast time signals? That was probably one of the highlights of the day. In fact, in those days, there were many people in front of that beautiful color bar depicting an analog clock, trying to synchronize their watches expertise. You will remember also, that when the asticina seconds spent on the 54 th second, also started the transmission of five beeps sound of short duration, one per second. Then a second break at 59 ° second, and finally the last voice that came exactly at the expiration of the 60 th second, marking also the beginning of the next minute. Following this, a female voice calmly and decisively announcing the exact time. [read more →]

Programmable frequency for the TS-830M

Programmable frequency for the TS-830M

Hi, This frequency has been specially designed to be inserted in place of the TS-830 player, but can also work alone and with a few tips on other amateur radio equipment.

Introduction

Unfortunately after 20 years of perfect operation on my TS-830M system has failed the card "COUNTER UNIT," appointed to read the operating frequency. After a brief survey of the wiring diagram in hand, it soon became clear that the problem was that the Q5 sull'integrato TC5070P, in charge of making the measurement of frequency and represent the value on the display. This is a built-in 42 pins, which as stated in the data sheet contains a universal programmable to six digits. [Read more →]