Codan-radio Radio Repeater Systems Training Guide Bedienungsanleitung PDF herunterladen (Seite 35)

RADIO REPEATER SYSTEM | TRAINING GUIDE

Chapter 3: Repeater System Equipment Page 27

SOLAR SIZING WORKSHEET

SITE NAME BRIDGE ARS DATA POINT LYTTON

AVERAGE YEARLY BRIGHT SUNSHINE HOURS (BSH) 1927

ADJUSTED (+ or - a +5 percent) TOTAL BSH 2023

AVERAGE PEAK HOURS PER DAY (total BSH x 0.0017) = B = 3.44

AVERAGE ANNUAL TEMPERATURE (at monitor point) c = +9

ADJUSTED FOR SITE (c - adiabatic lapse rate) +20 = C = 23.5

DUTY CYCLE (shown as a decimal, eg. 8% = .08) = dc = 0.08

TOTAL DAILY NORMAL OPERATING HOURS a = 9 h

TOTAL STANDBY CURRENT (24 x Rx(I)) = b = 2.0 Ah

TOTAL TX CURRENT (a x Tx(I) x dc) = c = 1.6 Ah

TOTAL DAILY REQUIREMENT (b + c) = r = 3.6 Ah

REPEATER OPERATING VOLTAGE V = 12.5 Volts

BATTERY TYPE Ni-Cad VOLTS PER CELL v = 1.2 Volts

NUMBER OF CELLS REQUIRED IN SERIES (V/v) = VI = 10 cells

ONE BANK OF CELLS WILL GIVE (100 / r) 28 DAYS OF STORAGE

CHARGE VOLTAGE PER CELL CV = 1.4 Volts

REVERSE CURRENT DIODE OR REGULATOR LOSS D = 0 Volts

NOMINAL PANEL VOLTAGE (from manufacturers data) = m = 14 Volts

PANEL O/P VOLT REQ’D (D+R+(VIxCV)+(0.004(C x m))) = L = 15.8 Volts

PANEL CURRENT (from man. power graph) at L volts = M = 1.9 A

MODULE CURRENT PER DAY (B x M) = M1 = 6.5 A

NUMBER OF PANELS REQUIRED = (r / M1) = 0.5 modules

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Codan-radio Radio Repeater Systems Training Guide Bedienungsanleitung Seite 35