AR7030
Additional operating information for
FPU7030 and NB7030 options.
1Contents
2 Introduction and opt i ons ………………….. 1
2-1 Overview
2-2 Memory idents
2-3 New timers
2-4 Noise blanker
2-5 Notch filter
2-6 Menu structure
3 Configuration menu ………………………… 3
3-1 New entries
3-2 Setting up the NB7030 option
4 Memory extensions ………………………… 4
4-1 More memories
4-2 Text identification
4-3 Ident preview
4-4 Ident search
4-5 Memory editor
4-6 Memory indexing
5 Timer extensions …………………………… 6
5-1 Setting the clock tim e and date
5-2 Timer operation
5-3 Setting the timers
6 Noise blanker operation …………………… 7
6-1 Option confi gur at ion
6-2 Noise blanker operation
6-3 Noise blanker menu
7 Notch filter operation ………………………. 7
7-1 Option confi gur ation
7-2 Notch filter operati on
7-3 Notch filter menu
8 Option specifications ….………..…………. 8
2 Introduction and Options
2-1 Overview
This supplement to the AR7030 Operating Manual covers
the functional changes and extensions that are due to the
enhanced processor (FPU7030). The enhanced processor
is required to operate the Notch Filter and Noise Blanker
options, but a receiver without the NB7030 option board
may still use the enhanced processor to gain extra
memory and timer functions.
The standard AR7030 manual covers the operating
principles of the receiver and these remain largely
unchanged with the enhanced processor. New users
should use the standard manual t o become familiar with
the set, referring to this supplement if there seems to be a
discrepancy between the manual and the receiver’s
behaviour. Experienced users should find that the new
features fit quite seamlessly into the operating method,
although some functi ons may have moved or require an
extra button press now.
The next few sections give an outline of the new features
and the terms used for them. Of par ticular relevance is a
new menu structure diagram (section
diagram
2-4
in the standard operating manual.
2-6
) which replaces
2-2 Memory idents
The receiver’s memory capability is increased to 400
memories each stori ng frequency, mode, filter, PBS, AGC
and squelch settings. Additional l y each m em or y can store
a textual identifier (up to 14 char act ers long) t o aid station
identification. A new memory editor function using the
usual copy and paste operations is incorporated t o m ake
management of the frequencies and identifiers easy. Two
extra features can be added to the receiver’s normal
operation making use of the text identifiers :-
Ident Preview
1)
seconds whenever a memory is selected or previewed.
Ident Search
2)
memories for a close match to the currently tuned
frequency and, if one is found, displays the appropriate
text ident for 10 seconds.
displays the text ident for three
checks the frequency stored in all of the
2-3 New timers
The clock in the receiver has been extended to include
date and month, and ten, one-year tim er memories have
been added. These multi-timers will recall a specified
receiver memory at the start time and then run the
receiver for a given period all owing unattended recording
of several programs from several stations.
2-4 Noise blanker
The impulse noise blanker operates in the IF system of
the receiver to reduce the effects of short- duration noise
pulses. With adjustable threshold and two selectable
blanking periods the NB7030 will cope with a wide range
of noise and signal conditions. Most importantly, the
noise blanker reduces the effect of noise spikes on the
receiver’s AGC system, preventing it quietening after a
spike. Additional audio control circuits in the noise
blanker allow successful operation in AM and Sync
modes as well as SSB and CW.
2-5 Notch filter
The audio notch filter in t he NB7030 is manual ly t uneable
from 150Hz to 6kHz and will typically offer more than
50dB of rejection to unwanted heterodynes. A variety of
automatic facilities are incorporated to make the notch
quick and easy to use - the tuning rate slows down when
a signal is detected close to the notch frequency reducing
the chances of tuning through and missing the signal,
and a signal tracki ng f acility is available that will finish the
fine tuning after coarse manual tuning. This will also track
wandering heterodynes or move the notch with the
receiver tuning in SSB and CW modes (provided the
receiver is tuned slowly). A full y automatic notch search
form 300Hz to 6kHz can be started, with the notch
settling on the first steady heterodyne it finds.
FPU7030 ADDITIONAL OPERATING INFORMATION PAGE 1
2-6 Menu structure
=5>E =5>E
Left s ide menu Right side menu
Previously
selected menu
Ident
Select
Previous
menu
S - m e ter
display
Text Ident
from mem search
69<D5B
B696
=5=?BI
>dSX
>2
D_^U
F6?
AM, Sync,
SSB modes
CW, DATA
modes
NFM mode
7QY^
=_bU
Passband
shift
Passband
shift
Squelch
level
Notch
tune
Treble
level
IF
gain
IF
gain
NB
level
Squelch
level
Watch
delay
Memory
channel
Filter
number
BFO
value
Squelch
muti ng
Notch
search
Bass
level
AGC
speed
AGC
speed
NB
width
A / B
sw ap
S quelc h
hold
Memory
reca ll
Filter
bandwidth
Filter
bandwidth
Filter
bandwidth
Notch
on / off
Filter
bandwidth
Filter
bandwidth
RF Atten
and Preamp
NB
on / off
Copy
A to B
Squelch
muting
Scan
exclude
Filter
menu
RF-IF
menu
Tuning
lock
Dual
watch
Memory
store
5TYd
DY]b
3^VW
CSQ^
Dhd
DY]U
=d]b
CUde`
3\_S[
DY]U
Squelch
level
Scan
delay
Memory
channel
Character
select
Scan
on / off
Squelch
hold
Text
edit
Save
ident
Set timer run time
Set timer
start time
Squelch
Memory
muting
Start
channel
channel
Co py & pa st e
frequency / ident
Te xt cursor
position
Arm
timer
Arm
timer
Set clock time Set clock date
Multi-timer
numbe r
Set multi-timer
start time
Configuration
Aux relay
A u x outp u t lev e ls
Sync detector
RF atten / preamp
Notch auto tune
Mem text ident
Options installed
Memories :
Filte r s :
Recall
memory
S et mult i-ti me r
date
Choices
Off / timer / squelch
Left / right: 0 to 99%
A u to / wi d e / n a r ro w
Auto / manual
On / off
Preview / auto
Ye s / n o
Start re-index
Start calibrate
menu
Stop
Ident
hide
Sleep
mode
Timr
menu
Run
time
FPU7030 ADDITIONAL OPERATING INFORMATION PAGE 2
3 Configuration menu
3-1 New entries
The configuration menu is described in the AR7030
Operating Manual section
processor there are several new settings in the menu to
cope with new options and functions.
The list of configuration settings is shown below - new
items are marked
Item Settings
Select None (Modify is informative)
Notch auto tune: Off On
Ident preview: Off On
Ident auto search: Off On
Aux relay: Off Timer Squelch
Aux output mut ing: Off On
Aux o/p (L): 0% to 99%
Aux o/p (R): 0% to 99%
Leap year counter: 0 to 3
Notch option: No Yes
NB option: No Yes
RF Atten step: 10dB 20dB
Sync detector: Auto Narrow Wide
RF Gain: Auto Man
Mem ory re-index: Start
Filter calibrate: Start
Details of the settings are as follows:Notch auto tune: If turned On th en the not ch fi lter will
centre on a signal and follow sm all changes in fr equency.
If turned Off then the notch filt er is only m anually tuned.
The notch auto tune on/off setting is st ored i n t he A, B, C
Setup memories and the default is Off.
Ident preview: If turned On then memory text identifiers
will be displayed for 3 seconds whenever memories are
selected or previewed. This acts in any relevant menus
wher e mem ori es are i nvo lved. Prev iew i s dis abled if t his
is turned Off. The ident preview on/off setting i s stored in
the A, B, C Setup memories and the default is Off.
Ident auto search: If turned On then a memory
frequency search is performed whenever tuning stops and
if a mat ch is found a text ident will be displayed. Setting
this Off disables the automatic search but pressing the
button will still start the search manually. The
[MENU]
ident auto search on/off setting is stored in the A, B, C
Setup memories and the default is Off.
.
9-4
. With the enhanced
year then the value should be zero. If necessary, use the
or
[RF-IF]
Notch option: This setting tells the receiver’s control
system if the notch filt er menus and configuration are to
be used. If the NB7030 is not installed then it shoul d be
set to No.
NB option: This setting tells the receiver’s control
system if the noise blanker menus and configuration are
to be used. If the NB7030 is not install ed then it shoul d be
set to No.
RF Atten step: Included for compatibility with future
options. MUST BE SET TO 20dB.
Memory re-index: Pressing Start will re-index the
frequency memories for the ident search operation - this
takes about 6 seconds. See section 4-6 for details of
when it is necessary.
] buttons to change the counter value.
[FILTER
3-2 Setting up the NB7030 option
Two of the configuration settings are to do with the
installation of the NB7030 notch filter / noise blanker
option board. The Notch opti on and NB option settings
should both be set to Yes if the NB7030 board is
installed. If either of the settings is No then the menu to
operate the option will not be available on the receiver’s
display.
To access the configuration menu, press the
if the Edit / Timr / Cnfg menu list is not displayed, then
press the button under
Notch option
the
about 1/3 turn clockwis e).
Press the right menu button (under the
change the setting.
Config Menu settings with NB7030 installed:-
Notch option: Yes
NB option: Yes
Config Menu settings with NB7030 absent:-
Notch option: No
NB option: No
Press the
the normal receiver display.
It is quit e acceptable to have one option On and one
if only part of the NB7030 is required. This removes the
unused option menu from t he receiver menu system.
[MENU]
Cnfg
. Us e t h e s pi n - w heel to select
NB option
and
button or the [Oz
entries (turn the control
Yes
]
button to return to
z
]
z
button
[O
z
or No) to
Off
NOTE NOTE NOTE NOTE
Leap year counter: This counter is advanced every year
and is used by the clock to insert a leap day every four
years. If its value is zero then February will have 29 days,
so the value is best thought of as being the num ber of
years since the last leap year. If t he current year is a leap
Note:
If the NB7030 is
Notch option
the
NO AUDIO OUTPUT
not be remedied with a
way to restore operation is to make sure t hat both opti ons
are set to No.
FPU7030 ADDITIONAL OPERATING INFORMATION PAGE 3
NOT
installed then setting either
or the
NB option
from t he receiver. This condition will
Default Set
Yes
to
will result in
operation, the only
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