Auto Vehicular Adapter
OK I GOT INTO P25 , HAD NO IDEA ABOUT WHICH
RADIO TO BUY. WITH THE HELP OF FELLOW HAM
I GOT THE RIGHT RADIO , NEXT FOUND OUT ABOUT
THIS TING CALL A AVA or SVA\WHAT IT DOES IN MAKES YOU HT MOTOROLA ASTRO SABER RADIO A
BASE RIG OR A MOBIL RIG.
HERE IS WHAT I FOUND YOU NEED.
Notice in the above picture the key if you don't get the key's
here is the answer:
The MOT-1 key has the exact same cuts as found
on a 2135 key, but it's made on a
different blank (Ilco 1041-N). Have the
locksmith copy your 2135 onto
the Ilco 1041-N blank but use the photo to get
it right side up.
I'M on 146.565 simplex. And from DV4 Mini
on FSC002 room 10 the Florida Room, come join us.
There is a decal on top of the Astro SVA that gives the
following useful data:
"CAUTION: Inserting the wrong radio may Damage the Adapter. This Adapter works
with ASTRO Digital SABER, SABER and Systems SABER radios manufactured on or
after September 1, 1994. These radios can be identified by their serial numbers:
The 5th character (year) must be "U" or later (V, W, X, Y, or Z). If 5th
character is U, the 6th character (month) must be "S" or later (T, U, V, W, X,
Y, or Z). Use Adapter ONLY with approved radio models. For radios manufactured
prior to this date please contact: Motorola at 1-800-523-4007 (ext. 112) for
upgrade details." The phone number is long gone remember these unit are 30 plus
One thing to note when using your SVA, if you pull the
radio out while it is on, you may loose your volume control (any other
controls). This may be intentional, or it may be a firmware issue. Since the AVA
doesn't know when you are going to remove the radio from the cradle, it can't
completely return control of the radio to the user before it is detached. As a
result, some radios still pretend that they are in the AVA, and don't respond to
user controls without a power cycle. On the other hand, there are some radios
that seem to work fine some/all the time when they are pulled out of the SVA.
This points to the firmware in the radio and the newer revisions may be able to
compensate for the loss of the SVA control without the radio being power cycled.
Just something to be aware of."
I have a Astro SVA that has the decal. The correct SVAs are hard to find. I had
a long wait to get one on eBay and it was on the spendy side. About 5 times the
rate as an old, non-Astro version. Good luck and keep hunting.
Facing the 4 pin Male Plug on the rear
of the SVA here are the Pins left to right as follows:
Black = Vehicle Ground (or "-" Power Connection)
Green = Headlight Sense (dims the backlighting when
+12Vdc is applied...can be left disconnected and the backlights
will always be full brightness.)
Yellow = Ignition Sense (Turns on SVA and allows
charging to begin when +12.0 Vdc is applied.)
Red = Vehicle Power (+12.0 Vdc Power Connection)
Next you are going to need is a Amplified
Make sure you get the wire harness with the speaker
if plug is missing here is the pin number
Motorola Astro AVA-HHCH Modification PDF FILE
In the above mod they
tell you how to take the coil cord off , but you have done it well lots of luck
.Here are a couple pictures that will help. Click on picture will enlarge.
IN THE ABOVE PICTURE YOU CAN BUY THE AVA WITH OUT THE HARNESS,
THE PLUG IS THE SAME THING USED IN COMPUTER TO CONNECT
POWER TO HARD DRIVE AND CD ROM'S
THE RED , YELLOW, AND GREEN WIRES ARE ALL CONNECT TOGETHER
THE LAST ITEM IS A SMALLER BATTERY
Motorola PT #NTN 7014 BR OR NTN 8251AR
THE OVER DIMENSIONS 4.04 X2.93X1.14 INCHES
THIS BATTERY CAN BE PURCHASED FROM 14.00 TO
24.00 DOLLAR ON INTERNET
THE SCREEN SHOOTS ARE NOT FROM ASTRO
SABER BUT FROM A SABER RADIO