<kl...@acsalaska.net>
To: Elecraft@mailman.qth.net
Sent: Tuesday, September 13, 2016 12:54 AM
Subject: Re: [Elecraft] KX3 Vehicle mount
Very timely discussion as I am installing my KX3 into a 2015 truck.
I already installed a new Alinco DR-735T. Temporarily using a dc
accessor
Ed,
Yes, eliminate the fuse in the negative wire and ground it to the
chassis near the point where the battery negative is grounded.
Consider that the radio will also be grounded by the connection of the
coax shield to the chassis. If the negative power lead is fused and
that fuse opens,
...@fmeco.com>
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] KX3 Vehicle mount
Message-ID: <daf7143d-4e9d-4841-7264-ec7ec94cc...@fmeco.com>
Content-Type: text/plain; charset=windows-1252
Brian, if you run the negative lead all the way to the battery (direct)
fuse the lead close to th
VHF/UHF is a VERY different animal with respect to RFI to and from a
vehicle's electronics. Using the vehicle's chassis as the return for
power is a recipe for serious problems. Yes, it carries DC just fine,
but it forms a BIG loop that is a sitting duck for all the RF trash in
the vehicle.
Myron,
Good points.
For those who choose not to trust the conductivity of the vehicle
chassis local ground point, run the negative wire to a point on the
vehicle chassis near the point where the battery to chassis ground wire
is mounted - but not to the battery terminal itself nor the
t;j...@audiosystemsgroup.com> Date: 9/12/2016 8:58 PM (GMT-07:00) To:
elecraft@mailman.qth.net Subject: Re: [Elecraft] KX3 vehicle mount
OK. In the absence of learning something different, I agree with your
analysis, Josh. One of the great things about sticking your neck out
and saying what you think yo
OK. In the absence of learning something different, I agree with your
analysis, Josh. One of the great things about sticking your neck out
and saying what you think you know is that when you're wrong, folks will
tell you about it. :)
Thanks!
73, Jim
On Mon,9/12/2016 7:40 PM, Josh Fiden
How I understand it is that the sensor is measuring charge/discharge
current of the battery.
The following assumes the radio is connected directly to the battery
terminal:
Case 1. If the alternator is running, then current to the radio is
passing through the sensor which looks like charging
: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Jim
Brown
Sent: Monday, September 12, 2016 2:53 PM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] KX3 vehicle mount
Not necessarily. There is no good reason to bond the radio to the vehicle.
It is, however, necessary to have good RF
Thanks Josh.
To confuse the sensor, it seems to me that the sensor would need to be
built into the battery lug, so that it was between where we could
connect our 12V minus lead and the battery -- i.e., so that our current
was going through it. I was assuming it was on the wire side of the
Hi Jim,
It's not just hybrid & electric vehicles. Some newer conventional cars
shut the engine off during idle to save fuel. There's a sensor inline
with the battery neg terminal to measure charge & discharge rates to
prevent the start-stop algorithm from causing a dead battery. If you
Not necessarily. There is no good reason to bond the radio to the
vehicle. It is, however, necessary to have good RF connection at the
antenna between the coax shield and the body so that it can act as a
counterpoise. That connection could be through a good RF capacitor. In
this were done, I
Newer cars that have the auto stop feature ( engine turns off at stop lights)
have a sensor between battery negative and car frame. In these cars the radio
has to be connected to frame ground not the battery negative post or the sensor
will not work right correctly.
Ray
W8LYJ
Sent from my
The simplest and easier mount that actually works and allows for positioning
depending on what you are planning, check this out.
https://www.amazon.com/gp/product/B00CRQUKQ4/ref=oh_aui_detailpage_o05_s00?ie=UTF8=1
I have one for my KX3 and KX2. I'd post a picture, but don't think that
is
On Mon,9/12/2016 6:58 AM, Matt Zilmer wrote:
This is also an excellent source of mobile installation knowledge:*
http://www.k0bg.com/
*
And also some misinformation.
73, Jim K9YC
__
Elecraft mailing list
Home:
This is the "sneak path" through a grounding system, and must always be
considered.
Although this thread is directed at mobile installations, it applies
equally to home station installations. If you have a driven ground rod
that is not connected with heavy wire to the utility entry ground rod,
**This is also an excellent source of mobile installation knowledge:*
http://www.k0bg.com/
*
*Note that in the mobile guide, the chassis ground was the method a
Honda tech recommended. I could have run an additional 8 AWG and fused
it, but there was no reason to do so. Another hint is that
I will add to the conversation with a direct story relating to radio
grounds, in this case it was a sail boat... At one time I spent much of
my life Surveying boats, another survey friend asked me to look at his
sailboat as he could not keep zinc's on the boat they would last about a
month.. An
Brian, if you run the negative lead all the way to the battery (direct)
fuse the lead close to the battery. If you run the negative lead to
point that ends in a frame ground do not fuse the negative lead. This
does not conflict with standard automotive manufacture recommendations.
Also
Brian,
There is a lot of controversy over fuses in the ground lead.
The reason for them dates way back to days when the battery to engine
ground strap would commonly corrode or break. IMHO, that was more
common in automotive designs of the 1940s through 1980s vehicles when it
was a piece of
Don,
Perhaps you can clear up an issue.
The link below does not include fuses in the ground side.
I thought there were some very good reasons to do so.
73 de Brian/K3KO
On 9/12/2016 12:50 PM, Don Wilhelm wrote:
Wayne,
Take a look at
Wayne,
Take a look at
http://www.elecraft.com/manual/Rev-B1-1.6-KX3-Mobile-Owners.pdf.
73,
Don W3FPR
On 9/12/2016 8:24 AM, Wayne Michael wrote:
I have a 2012 Kia Sedona minivan.
I currently have a FTM-400 mounted using a seat mount.
Any ideas what mounts might be available to put a KX3 in
I have a 2012 Kia Sedona minivan.
I currently have a FTM-400 mounted using a seat mount.
Any ideas what mounts might be available to put a KX3 in the van along with the
FTM-400?
Anyone have experience with the KX3 mobile in a car? Worth the effort?
Thanks,
Wayne AC9HP
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