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3. Installation
3.1.
Prograrming of the Memories on EE General
3.1.I.
The building block of the memory,located on printed circuit board
::I:be4in.
j`,i .i
is the Programable Read Only Metnory, in short PROM.
A PROM is not reprograrmable because programing a bit position is
like blowing a fuse.
3.I.2.
On printed circuit board E 8 PRons can be mounted in separate
sockets. Five PRorts are used for band information and tbree PROMs
are used for storing frequency infornatioTi.
3.1.3.
The prograrming of the PROMs can be done in two ways.
The optional Programing Unit 4±± can be used for this job as
de§cr-ibed in paragraph 3.3. But only the six TI-types shorn
table 3.1.1. Lan be brogramed by means of printed circuit board C2£|
The other way is to let the local PROM-distributor do the programing
In this case all the PROM-types shown in table 3.1.1. can be used.
ManufacturerI
Types
I
INTERSIL
IM 5600
INTERSIL
IM 5610
SIGNETICS
N 82 S 23
SIGNETICS
N 82
S
123I
II
Onl.y these PROM-type81
lTITI
I
SN 54188(SN54188 A
can be programed by
=roang:agi::e=!:i2fe.II
I::
SN 54S188SN74188
SN 74188 A
SN 74S188
3.1.4.
Table
3.1.I.
The Band lnforTnation Memory controls the Band Indicator of the Trans-
mitter Potter Amplif ier.
Each position of the transmitter power anplif ier BANI} switch Can be
adju§Ced to any frequency, but ohce adjusted tbe freq`iency coverage
of each band is limited.
In order to obtain a reascmable output power the ratio bettJeen the
bighest and love.st frequeticy withia a baad of the I 5002 .hould tlot
exceed approx. 1:1.2.
3-1
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