Today's Message Index:
----------------------
1. 12:46 AM - Re: Constructing an automatic RCA video camera feed splitter (Airdog77)
2. 12:48 AM - Re: Constructing an automatic RCA video camera feed splitter (Airdog77)
3. 01:03 AM - Re: Constructing an automatic RCA video camera feed splitter (Airdog77)
4. 04:22 AM - Re: Re: Constructing an automatic RCA video camera feed splitter (Robert L. Nuckolls, III)
5. 08:54 AM - Re: Dual Power Inputs, Dual Buss Electrical System (Bill Watson)
6. 09:16 AM - Re: Constructing an automatic RCA video camera feed splitter (Airdog77)
7. 09:24 AM - Re: Re: Constructing an automatic RCA video camera feed splitter ()
8. 09:30 AM - Re: Constructing an automatic RCA video camera feed splitter (Airdog77)
9. 11:19 AM - Re: Re: Constructing an automatic RCA video camera feed splitter (Charlie England)
10. 11:46 AM - Re: Dual Power Inputs, Dual Buss Electrical System (Robert L. Nuckolls, III)
11. 11:49 AM - Re: Re: Constructing an automatic RCA video camera feed splitter (Robert L. Nuckolls, III)
Message 1
INDEX | Back to Main INDEX |
NEXT | Skip to NEXT Message |
LIST | Reply to LIST Regarding this Message |
SENDER | Reply to SENDER Regarding this Message |
|
Subject: | Re: Constructing an automatic RCA video camera feed |
splitter
Thanks Bob.
I'll take a look at all this and try to digest! :)
I see a number of responses to my question that I need to go through as well....
normally I get an email update on a post, but didn't this time so I have some
reading to do!
Regards,
Wade
--------
Airdog
Wade Parton
Building Long-EZ 916WP
www.longezpush.com
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=473489#473489
Message 2
INDEX | Back to Main INDEX |
PREVIOUS | Skip to PREVIOUS Message |
NEXT | Skip to NEXT Message |
LIST | Reply to LIST Regarding this Message |
SENDER | Reply to SENDER Regarding this Message |
|
Subject: | Re: Constructing an automatic RCA video camera feed |
splitter
Awesome, looks great!
--------
Airdog
Wade Parton
Building Long-EZ 916WP
www.longezpush.com
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=473490#473490
Message 3
INDEX | Back to Main INDEX |
PREVIOUS | Skip to PREVIOUS Message |
NEXT | Skip to NEXT Message |
LIST | Reply to LIST Regarding this Message |
SENDER | Reply to SENDER Regarding this Message |
|
Subject: | Re: Constructing an automatic RCA video camera feed |
splitter
Sorry for my delayed response back. Again, didn't get any of the normal email
notifications that responses were being made to my question... thanks all!
The camera I'm using is a cheap 1/4" 600TVL from Amazon... the two I bought are
no longer being sold, but this is close: https://tinyurl.com/yckqk3dh
Yes, I'm looking at video RCA jack OUT feed that will then go into box that hooks
to USB. So I don't need to mess with anything USB as far as video is concerned.
I need to dig into all this info to figure out a way ahead.
Bob, how would I go about getting boards like the one you posted pics of?
Regards,
Wade
--------
Airdog
Wade Parton
Building Long-EZ 916WP
www.longezpush.com
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=473491#473491
Message 4
INDEX | Back to Main INDEX |
PREVIOUS | Skip to PREVIOUS Message |
NEXT | Skip to NEXT Message |
LIST | Reply to LIST Regarding this Message |
SENDER | Reply to SENDER Regarding this Message |
|
Subject: | Re: Constructing an automatic RCA video camera |
feed splitter
At 03:03 AM 10/12/2017, you wrote:
>
>Sorry for my delayed response back. Again, didn't get any of the
>normal email notifications that responses were being made to my
>question... thanks all!
>
>The camera I'm using is a cheap 1/4" 600TVL from Amazon... the two I
>bought are no longer being sold, but this is close:
>https://tinyurl.com/yckqk3dh
There's quite an array of products offered
in these devices. I read some comments that
complained of poor/no instructions. Also,
some devices advertised as 3-12v supply were
indeed 3.3 volts only . . . anything more
smoked them.
>Yes, I'm looking at video RCA jack OUT feed that will then go into
>box that hooks to USB. So I don't need to mess with anything USB as
>far as video is concerned.
>
>I need to dig into all this info to figure out a way ahead.
>
>Bob, how would I go about getting boards like the one you posted pics of?
Give me an address . . . I'll mail them
to you. How are your soldering/fabrication
skills? You'll have to chase down some
parts and package the stuff up in some
suitable enclosure.
Bob . . .
Message 5
INDEX | Back to Main INDEX |
PREVIOUS | Skip to PREVIOUS Message |
NEXT | Skip to NEXT Message |
LIST | Reply to LIST Regarding this Message |
SENDER | Reply to SENDER Regarding this Message |
|
Subject: | Re: Dual Power Inputs, Dual Buss Electrical System |
On 10/11/2017 11:09 AM, Robert L. Nuckolls, III wrote:
> At 08:37 AM 10/11/2017, you wrote:
>> Im redoing my panel in my aircraft which I built 15 years ago with a
>> Z-14 electrical system. Im installing a Garmin G3X panel and all the
>> associated boxes. Most of them have the capability to wire for 2
>> separate power sources. With dual buss with crossfeed, Im wondering
>> if there is any significant benefit to having two CBs and two power
>> feeds. I can think of a couple failure modes, but they seem remote.
>> There is also a configuration using a backup battery on the second
>> power feed, maybe thats a better choice. Thanks in advance for the
>> feedback.
>
> With two batteries, two alternators and crossfeed,
> there is no value in exploiting the redundancy
> features you cited. Z14 has all that stuff built
> in.
>
> Bob . . .
>
I have a Z-14 and agree. There are even some potential disadvantages.
I originally connected my (3) GRT EFISs to one bus and not incidentally,
the engine starter circuit to the other bus. That configuration
combined with an inadequate light weight starter originally supplied
with the 6 cylinder IO-540 on the RV-10, meant that cross fed starts
would sometimes reboot the GRTs. And starting with just 1 battery was
marginal in cold weather. Given that I had no on/off switch for the
GRTs, this was inconvenient given the boot time required. And it turned
out that early versions of the GRT code did not like to have their boot
sequence interrupted though that problem was fixed in later releases of
the code.
Ideally as Bob has explained, one wants to start with the batteries
cross-fed to keep stress on the batteries to a minimum. Then to do
normal flight operations with 2 separate buses which makes any failure
identification easier and would keep any damaging component isolated.
The other capability I wanted from my Z-14 was to be able to run my
panel for an extended period of time on occasion without concern for
having enough juice for a subsequent engine start. this is where the
main disadvantage might lie. The GRTs are capable of connecting to up
to 3 power supplies. At one point I used 2 of those inputs to connect
them to both buses. That was a mistake because I found that my ability
to run the panel for an extended period was diminished. That created
several problematic scenarios that I just shouldn't have had to deal with.
In other words, the Z-14 gave me a lot of flexibility as long as I
connect individual components to one bus or the other. It allows one to
identify and isolate problem components and flexibly manage one's
batteries if desired. If you crossfeed individual components at the
component, you give some of that capability away with little if anything
gained.
Post Script: Replacing the starter eliminated all problems with cross
fed and single battery starts. Returning to a single power supply on a
single bus for each GRT gave me back the battery management flexibility.
Bill "I love my Z-14" Watson
---
This email has been checked for viruses by Avast antivirus software.
https://www.avast.com/antivirus
Message 6
INDEX | Back to Main INDEX |
PREVIOUS | Skip to PREVIOUS Message |
NEXT | Skip to NEXT Message |
LIST | Reply to LIST Regarding this Message |
SENDER | Reply to SENDER Regarding this Message |
|
Subject: | Re: Constructing an automatic RCA video camera feed |
splitter
Bob,
Thanks a ton! I'll email you my address.
Soldering skills are not horrible. Have done very little on circuit boards, but
I have managed small stuff with pretty good results.
I tested out the camera hooked up to my TV using a 12V battery and the picture
was really good for such a small camera. That's when I decided to press forward
with these mini cameras.
Regards,
Wade
--------
Airdog
Wade Parton
Building Long-EZ 916WP
www.longezpush.com
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=473496#473496
Message 7
INDEX | Back to Main INDEX |
PREVIOUS | Skip to PREVIOUS Message |
NEXT | Skip to NEXT Message |
LIST | Reply to LIST Regarding this Message |
SENDER | Reply to SENDER Regarding this Message |
|
Subject: | Re: Constructing an automatic RCA video camera |
feed splitter
Pretty cool idea to use the mini-camera with the GRT EFIS. I'm building
a taildragger (Bearhawk Patrol) and am considering using a camera like
this for "taxi assistance" since the engine/cowl somewhat obscures
what's in front of you. Not that this is a replacement for S-turns, but
just another tool in the toolbox. At a price of $8-10, why not use it to
add to the situational awareness?
Jim Parker
Message 8
INDEX | Back to Main INDEX |
PREVIOUS | Skip to PREVIOUS Message |
NEXT | Skip to NEXT Message |
LIST | Reply to LIST Regarding this Message |
SENDER | Reply to SENDER Regarding this Message |
|
Subject: | Re: Constructing an automatic RCA video camera feed |
splitter
Hey Jim,
Definitely! It really is a neat little feature.
Be advised that the optional module & software to link into your EFIS runs $150
from GRT.
Cheers,
Wade
--------
Airdog
Wade Parton
Building Long-EZ 916WP
www.longezpush.com
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=473498#473498
Message 9
INDEX | Back to Main INDEX |
PREVIOUS | Skip to PREVIOUS Message |
NEXT | Skip to NEXT Message |
LIST | Reply to LIST Regarding this Message |
SENDER | Reply to SENDER Regarding this Message |
|
Subject: | Re: Constructing an automatic RCA video camera |
feed splitter
On 10/12/2017 11:30 AM, Airdog77 wrote:
>
> Hey Jim,
>
> Definitely! It really is a neat little feature.
>
> Be advised that the optional module & software to link into your EFIS runs $150
from GRT.
>
> Cheers,
> Wade
>
Or, there's plan B: a $10 USB camera & a $15 android cell phone.
:-)
---
This email has been checked for viruses by Avast antivirus software.
https://www.avast.com/antivirus
Message 10
INDEX | Back to Main INDEX |
PREVIOUS | Skip to PREVIOUS Message |
NEXT | Skip to NEXT Message |
LIST | Reply to LIST Regarding this Message |
SENDER | Reply to SENDER Regarding this Message |
|
Subject: | Re: Dual Power Inputs, Dual Buss Electrical System |
I have a Z-14 and agree. There are even some potential disadvantages.
I originally connected my (3) GRT EFISs to one bus and not
incidentally, the engine starter circuit to the other bus. That
configuration combined with an inadequate light weight starter
originally supplied with the 6 cylinder IO-540 on the RV-10, meant
that cross fed starts would sometimes reboot the GRTs. And starting
with just 1 battery was marginal in cold weather. Given that I had
no on/off switch for the GRTs, this was inconvenient given the boot
time required. And it turned out that early versions of the GRT code
did not like to have their boot sequence interrupted though that
problem was fixed in later releases of the code.
Ideally as Bob has explained, one wants to start with the batteries
cross-fed to keep stress on the batteries to a minimum. Then to do
normal flight operations with 2 separate buses which makes any
failure identification easier and would keep any damaging component isolated.
The other capability I wanted from my Z-14 was to be able to run my
panel for an extended period of time on occasion without concern for
having enough juice for a subsequent engine start. this is where the
main disadvantage might lie. The GRTs are capable of connecting to
up to 3 power supplies. At one point I used 2 of those inputs to
connect them to both buses. That was a mistake because I found that
my ability to run the panel for an extended period was
diminished. That created several problematic scenarios that I just
shouldn't have had to deal with.
In other words, the Z-14 gave me a lot of flexibility as long as I
connect individual components to one bus or the other. It allows one
to identify and isolate problem components and flexibly manage one's
batteries if desired. If you crossfeed individual components at the
component, you give some of that capability away with little if
anything gained.
Post Script: Replacing the starter eliminated all problems with cross
fed and single battery starts. Returning to a single power supply on
a single bus for each GRT gave me back the battery management flexibility.
Bill "I love my Z-14" Watson
Bill mentions a starter replacement . . . what
kind of starter was removed and what was
the replacement?
This trace I captured of my 87 GMC pickup
was no doubt produced by inrush from a wound-
field starter. Here we see that the bus
falls to 8v for a few hundred microseconds.
[]
Figure 1.
I suspect that my younger cars may have PM starter
motors. I'll look into that.
We had some discussions at B&C many years ago about
the market shift of permanent magnet starter motors.
We elected not to join the parade . . . primarily
because the wound field motor had lower inrush
currents and offered better cold weather cranking
efficiency when the battery was being degraded
by the cold weather.
Emacs!
Figure 8.
At the risk of being redundant, I'm repeating an assertion
that was offered some years ago when engine cranking inrush
reboots first raised their heads . . . I think it was back
in the days of Blue Mountain market roll out.
At that time, I posted the image above excerpted from
Mil-STD-704/DO-160 assertions suggesting that suppliers to
the industry should expect power perturbations over the
constellation of conditions illustrated.
Since that time, a number of processor based products have been
introduced to the market that re-boot when the bus falls
into normal/expected regions during engine start. While
the condition doesn't damage the appliance, it does
interrupt normal operations until the thing stands back
up. Intuitively, I believe it's possible to design this
characteristic out of most such products . . . but until
and unless the marketplace makes their desires known to
suppliers, nothing will change.
In the mean time, consumers of such products are obliged
to make fundamental changes to power system architectures
to accommodate an appliance that might well have been
designed for airplane friendly operations in the first
place. It wouldn't be out of line for Listers who
own such products to put the manufacturers on notice
that they've stubbed their toe.
Fee free to reference my writings. I'm also willing
to talk with any party interested in upgrading their
product. Give 'em my phone number too if you like.
Bob . . .
Message 11
INDEX | Back to Main INDEX |
PREVIOUS | Skip to PREVIOUS Message |
NEXT | Skip to NEXT Message |
LIST | Reply to LIST Regarding this Message |
SENDER | Reply to SENDER Regarding this Message |
|
Subject: | Re: Constructing an automatic RCA video camera |
feed splitter
At 11:22 AM 10/12/2017, you wrote:
>
>Pretty cool idea to use the mini-camera with the GRT EFIS. I'm building
>a taildragger (Bearhawk Patrol) and am considering using a camera like
>this for "taxi assistance" since the engine/cowl somewhat obscures
>what's in front of you. Not that this is a replacement for S-turns, but
>just another tool in the toolbox. At a price of $8-10, why not use it to
>add to the situational awareness?
I've rented some cars with back-up cameras . . . pretty
handy. Why not a taxi forward camera?
Bob . . .
Other Matronics Email List Services
These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.
-- Please support this service by making your Contribution today! --
|