AR2700 operating manual
33
legend “ATT” is extinguished when the attenuator is Off.
The selection of attenuator may also be programmed into memory channels
and when defining program search.
(7) Memory banks & channels
It is very convenient to store commonly used frequencies into a memory bank
along with mode and attenuator status, this saves having to key the data in
over and over again. Memory recall is very straight forward and quick when
compared to retyping all data.
Think of memory channels as pages in a notebook each of which is numbered
to identify it. Data may be written to each new page (memory channel) and
each page may be overwritten with new data, they can be used over and over
again.
Each memory channel may hold one frequency, mode, attenuator setting,
and step data. A total of 500 memory channels are provided which are
divided into 10 banks, each having 50 channels. The memory banks are
identified by the numbers 0, 1, 2, 3, 4, 5, 6, 7, 8, & 9.
Examples are “000” for the first channel
location in memory bank “0” and “049” for
the last memory channel in memory bank
“0”.
“415” is the location of memory bank “4”
channel “15”.
The data contents of memory and search
banks are held in an EEPROM so that no
backup battery or capacitor is required for
memory retention.
The stored data may be quickly and easily recalled, changed or deleted by
re-entry, memory recall, and memory delete.
During the manufacture and testing of the receiver, various test frequencies are
entered into the receiver’s memory banks so the memory locations are unlikely
to be completely blank.
Note: Where memory banks etc are empty the indication “- - -” is often
displayed.
7-1 Storing receive data into memory - memory input in MANUAL mode
For example, to store the frequency of 88.3 MHz with the attenuator Off into
memory bank “0” location “00” (000) while in MANUAL mode.
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