By Pei J., Zhang X.

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Additional resources for 1-Generator Quasi-Cyclic Codes

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Screen dump of the PC Audio Power Meter in action. of peak power and voltage, and the anafrom the on-screen voltage display. s. power value. s. reading is only valid low input voltages. If loading of the power when using sinewave test signals with no supply is a problem, temporarily disconserious clipping of the output signal. nect the dummy load while the unit is The routine that reads the converter and calibrated. updates the displays is assigned to a timer. Also bear in mind that one input socket Initially the timer is disabled, but operating (SK2) connects to earth.

Fortran IV (blimey that seems a long time ago) defined these variable names as Integers. So they were used as loop counters. It seems to have stuck, even if some programmers don’t know why. We have come a long way in language development, many of us will remember programming languages (particularly the many forms of BASIC) where the variable name was limited to two characters. Indeed in my early programming days using DEC’s BASIC+ under RSTS/E this is what we were limited to. Somehow we managed to turn out really quite sophisticated applications.

ZAPPING PICS Dear EPE, Can static electrical damage to a PIC cause partial changes to its stored programme/performance, or would it always cause a total failure? Alex Cunningham, via the Net It seems highly likely that program code could be disrupted under some conditions of static electrical exposure. Whilst one might normally expect total fatality from static discharge, it is possible that the discharge intensity might decay as it travels through the structure of the PIC (or other semiconductor device).

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