 |
Matronics Email Lists
Web Forum Interface to the Matronics Email Lists
|
| View previous topic :: View next topic |
| Author |
Message |
rickofudall
Joined: 19 Sep 2009
Posts: 1392
Location: Udall, KS, USA
|
 Posted: Sun May 16, 2010 11:46 am Post subject: Building a push to talk circuit |
 |
|
I bought a Vertex radio and need a push to talk switching circuit for it. I just can't turn down the VOX actuation level enough to deal with a pusher engine almost above my head, and a two stroke one at that. There is one listed in the manual, but there is no part no. listed. As it happens I have all the plugs and sockets to build one. If I understand how this this works I need two switches, one normally open, the other NC. The NO switch connects into the receiver and the NC into the transmitter so that when the button is pushed the receiver is grounded and the transmitter opened.
Does anyone on the list have one they've built, a drawing of the circuit, or a web address where info can be found?
Thanks,
Rick Girard
[quote][b]
| | - The Matronics AeroElectric-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?AeroElectric-List |
|
_________________
The smallest miracle right in front of you is enough to make you happy.... |
|
| Back to top |
|
 |
nuckolls.bob(at)aeroelect
Guest
|
| Posted: Mon May 17, 2010 8:01 am Post subject: Building a push to talk circuit |
|
|
At 02:44 PM 5/16/2010, you wrote:
| Quote: | I bought a Vertex radio and need a push to talk switching circuit
for it. I just can't turn down the VOX actuation level enough to
deal with a pusher engine almost above my head, and a two stroke one
at that. There is one listed in the manual, but there is no part no.
listed. As it happens I have all the plugs and sockets to build one.
If I understand how this this works I need two switches, one
normally open, the other NC. The NO switch connects into the
receiver and the NC into the transmitter so that when the button is
pushed the receiver is grounded and the transmitter opened.
Does anyone on the list have one they've built, a drawing of the
circuit, or a web address where info can be found?
|
If the adapter offered by the mfgr is
intended to work with traditional general
aviation headsets, then you only need a
single, normally open, push button.
Can you point me to a downloadable users
manual or installation manual for this
radio?
Bob . . .
////
(o o)
===========o00o=(_)=o00o=========
< Go ahead, make my day . . . >
< show me where I'm wrong. >
=================================
| | - The Matronics AeroElectric-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?AeroElectric-List |
|
|
|
| Back to top |
|
|
rickofudall
Joined: 19 Sep 2009
Posts: 1392
Location: Udall, KS, USA
|
| Posted: Mon May 17, 2010 9:04 am Post subject: Building a push to talk circuit |
|
|
Bob, Page 45 has a drawing of the push to talk switch installed, but no circuit info.
Rick
On Mon, May 17, 2010 at 11:03 AM, Robert L. Nuckolls, III <nuckolls.bob(at)aeroelectric.com (nuckolls.bob(at)aeroelectric.com)> wrote:
| Quote: | --> AeroElectric-List message posted by: "Robert L. Nuckolls, III" <nuckolls.bob(at)aeroelectric.com (nuckolls.bob(at)aeroelectric.com)>
At 02:44 PM 5/16/2010, you wrote:
| Quote: | I bought a Vertex radio and need a push to talk switching circuit for it. I just can't turn down the VOX actuation level enough to deal with a pusher engine almost above my head, and a two stroke one at that. There is one listed in the manual, but there is no part no. listed. As it happens I have all the plugs and sockets to build one.
If I understand how this this works I need two switches, one normally open, the other NC. The NO switch connects into the receiver and the NC into the transmitter so that when the button is pushed the receiver is grounded and the transmitter opened.
Does anyone on the list have one they've built, a drawing of the circuit, or a web address where info can be found?
|
If the adapter offered by the mfgr is
intended to work with traditional general
aviation headsets, then you only need a
single, normally open, push button.
Can you point me to a downloadable users
manual or installation manual for this
radio?
Bob . . .
////
(o o)
===========o00o=(_)=o00o=========
< Go ahead, make my day . . . >
< show me where I'm wrong. >
=================================
===========
-List" target="_blank">http://www.matronics.com/Navigator?AeroElectric-List
===========
http://forums.matronics.com
===========
le, List Admin.
="_blank">http://www.matronics.com/contribution
===========
|
| | - The Matronics AeroElectric-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?AeroElectric-List |
|
| Description: |
|
Download |
| Filename: |
VXA-220.pdf |
| Filesize: |
2.93 MB |
| Downloaded: |
176 Time(s) |
_________________
The smallest miracle right in front of you is enough to make you happy.... |
|
| Back to top |
|
|
nuckolls.bob(at)aeroelect
Guest
|
| Posted: Mon May 17, 2010 12:29 pm Post subject: Building a push to talk circuit |
|
|
At 12:01 PM 5/17/2010, you wrote:
| Quote: | Bob, Page 45 has a drawing of the push to talk switch installed, but
no circuit info.
Rick
|
That helps!
It wasn't clear as to the number and styles
of connectors. I see that you're wanting to
ADD ptt into an existing, traditional A/C
microphone path.
You'll need a 3-wire, .206/.210 plug and appropriate
mating jack . . .
http://www.aeroelectric.com/Pictures/Connectors/Audio/206-210_3-Ckt_Microphone.jpg
a handily mounted pushbutton . . .
http://aeroelectric.com/Pictures/Schematics/spst150ma2.jpg
and wire like this . . .
http://aeroelectric.com/Pictures/Schematics/Push-to-Talk_Adapter.pdf
Bob . . .
| | - The Matronics AeroElectric-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?AeroElectric-List |
|
|
|
| Back to top |
|
|
rickofudall
Joined: 19 Sep 2009
Posts: 1392
Location: Udall, KS, USA
|
| Posted: Mon May 17, 2010 1:11 pm Post subject: Building a push to talk circuit |
|
|
It's not often when an electronics project can be built from my stategic supplies (junk) box, but I'm pretty sure this one can. I have the plug and socket from the previous radio installation and the switch is already mounted in the stick. I may have to sneak out to the hangar and build this tonight.
Thanks Bob,
Rick
On Mon, May 17, 2010 at 3:30 PM, Robert L. Nuckolls, III <nuckolls.bob(at)aeroelectric.com (nuckolls.bob(at)aeroelectric.com)> wrote:
[quote]--> AeroElectric-List message posted by: "Robert L. Nuckolls, III" <nuckolls.bob(at)aeroelectric.com (nuckolls.bob(at)aeroelectric.com)>
At 12:01 PM 5/17/2010, you wrote:
| Quote: | Bob, Page 45 has a drawing of the push to talk switch installed, but no circuit info.
Rick
|
That helps!
It wasn't clear as to the number and styles
of connectors. I see that you're wanting to
ADD ptt into an existing, traditional A/C
microphone path.
You'll need a 3-wire, .206/.210 plug and appropriate
mating jack . . .
http://www.aeroelectric.com/Pictures/Connectors/Audio/206-210_3-Ckt_Microphone.jpg
a handily mounted pushbutton . . .
http://aeroelectric.com/Pictures/Schematics/spst150ma2.jpg
and wire like this . . .
http://aeroelectric.com/Pictures/Schematics/Push-to-Talk_Adapter.pdf
Bob . . .
===========
-List" target="_blank">http://www.matronics.com/Navigator?AeroElectric-List
===========
http://forums.matronics.com
===========
le, List Admin.
="_blank">http://www.matronics.com/contribution
===========
[b]
| | - The Matronics AeroElectric-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?AeroElectric-List |
|
_________________
The smallest miracle right in front of you is enough to make you happy.... |
|
| Back to top |
|
|
nuckolls.bob(at)aeroelect
Guest
|
| Posted: Mon May 17, 2010 2:51 pm Post subject: Building a push to talk circuit |
|
|
At 04:09 PM 5/17/2010, you wrote:
| Quote: | It's not often when an electronics project can be built from my
stategic supplies (junk) box, but I'm pretty sure this one can. I
have the plug and socket from the previous radio installation and
the switch is already mounted in the stick. I may have to sneak out
to the hangar and build this tonight.
|
Long runs of wire in the adapter are usually
a shielded pair with the shield carrying common
ground. However, try twisting a trio of 22AWG
wires together with a drill motor. Keep tension
on wires while twisting. Twist them tight enough
to get 4-6 turns per inch. Then before you open
the chuck, reverse the drill and slowly "untwist" while
relaxing tension. If the trio tends to "throw a loop"
then put the tension back on after you've straightened
it out and untwisted some more.
If you open the chuck with a lot of twisting force
in the wires, the trio will tangle up on the floor
like an apoplectic snake.
I think you'll find the twisted trio sufficiently
immune to electro-statically coupled noise.
Bob . . .
| | - The Matronics AeroElectric-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?AeroElectric-List |
|
|
|
| Back to top |
|
|
|
|
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum
|
Powered by phpBB © 2001, 2005 phpBB Group
|
Get Email Distribution Too!
FAQ
Search
Memberlist
Usergroups
Register
Profile
Log in to check your private messages
Log in
