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3 English language operating manual addendum V1.3 20/10/99
©AOR LTD, 1997, 1998, 1999 E&OE - Page
2
English language operating manual corrections - AR5000
Section 7-5 page 36 DELETING INDIVIDUAL MEMORY CHANNELS, 2
nd
paragraph:
Replace
“For example, to recall memory channel “123” press
while in memory recall mode”.
With
“For example, to recall memory channel “123” press
while in memory recall mode”.
In other words, omit the
key then continue with the procedure stated in the operating manual.
Section 12-19 page 58 STARTING AUTO STORE, top of the second column:
Replace
“The
key toggles between OFF and ON. Press
to select ON...”
With
“The
SUB DIAL
is used to toggle between OFF and ON. Rotate the
SUB DIAL
to select ON...”
In other words, use the
SUB DIAL
to toggle auto store ON / OFF instead of using the
key.
Step-adjust in program search mode using the AR5000
When inputting program search data, there is no entry point for step-adjust, however it is still possible to enter step-adjust data following the programming sequence.
Enter program search data as per section 12-7 (pages 51, 52, 53) of the English language operating manual. Activate the program search in the usual manner by pressing
then select the required bank as directed at the end of section 12-7 (page 53).
1. While searching, press the
key, press
to engage step-adjust (the “*” legend will be displayed).
2. Press
to display the current step-adjust value, such as 5kHz. Select the required step-adjust value by rotating the
SUB DIAL
or via the keypad (if using the
keypad finish the entry with a quick press of
).
3. To complete the data entry press
for more than one second. The data will be accepted and display will revert to search with the “STEP-ADJ” legend
displayed.
Note: if you did not complete the sequence by holding the
key for more than one second, an error beep will sound (if the beep is enabled) and the data will not
be saved. Remember, there is no entry point for step-adjust data during search program entry.
Program search of the new 8.33kHz airband step using the AR5000
The new airband channel step comes into effect in 1999 and 2000 for most of Europe and is to be further extend after that time. There is much confusion over the issue of
8.33 kHz, in reality it is not 8.33 but eight-and-one-third. As a third cannot be expressed in a decimal fashion, a small compound frequency error will occur every third
increment. Ideally the end digits should read ‘00’ ‘33’ ‘66’ ‘00’ but will be display as ‘00’ ‘33’ ‘66’ ‘99’. In reality, the AR5000 may be programmed in 8.333 kHz steps to
further minimise the compound error, the error is then very small indeed, especially when considering the sub band is only expected to occupy 132.000 - 134.500 MHz (one
Hz every third tuning increment!).
Work around:
If you do not wish to live with a small compound error, it is possible to program three program search banks as a GROUP (refer to section 12-4 Page 49 onward of the
English language operating manual). It is assumed in this addendum that you understand how to program basic functions.
1. Program three program search banks with the limits 132.000 - 134.500 MHz in AUTO mode (AM 25kHz steps). Link all three search banks to form a single group... so
all three are searched together. The operating manual does not specifically deal with step-adjust during program search, so ignore it at this time. Let’s assume you have
used banks 1, 2 & 3.
2. Bank 1 is left ‘as is’.
3. Start searching bank 2. Press
then press
to engage step-adjust (the “*” legend will be displayed).
Press
to access the sub-menu to allow the step-adjust value to be entered. Key in
Now press and hold the
key for more than one second for the data to be accepted (do not simply press ENT momentarily).
As there is no step-adjust entry point during the data input of program search, this LONG HOLD of the
key must be used to enter step-adjust while searching in
the above fashion. The AR5000 will continue to search but will add 8.33 kHz to every 25 kHz increment.
4. Repeat the process outlined in (3) for the third search bank, in this example (bank 3) but use a step adjust value of 16.66 kHz.
The AR5000 will continue to search but will add 16.66 kHz to every 25 kHz increment.
Outcome:
By searching all three search banks as a group, the exact frequencies will be searched for the new airband allocation without a compound error creeping in. As the
AR5000 has 20 search banks (twice), using three banks in this way is no great loss.
SWITCHED EPROM BANKS - more memories!!!
The facility of switching EPROM banks is now supported by the 3
(see the main operating manual section 18-6, page 71, last two items).
This virtually means that the AR5000 now has 2000 memory channels,
40 search banks, 10 VFOs etc... two sets in one!
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