10/8/12

Kenwood TM-V71A Dual Band: Installation in Dodge Nitro, Continued Part 3 – Mounting and Assembly

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What I decided to do. The remote control head would be velcro-ed the a ledge on the dash. This ledge is slightly angled so that the display is angled upward for best viewing. I also have it rotated ever so slightly to even further improve the viewing angle.(Figure 5 & 6)

Next, where to mount the body of the radio? What I came up with is under the front passenger seat, towards the back. With the contours in the floor pan and the rear bench seat the way it is, this is really, I think my best option. One day if I feel adventurous I may mount it under that bench, but not today.

IMG_20121005_155925IMG_20120920_172933The radio mounting bracket started life as a small piece of 22 gauge steel I found on the side of the road. 22 gauge, how do I know? The sticker was still on it. This was crudely bent by hand to mostly mate up with the curves and contours of the floor. It mostly does. To attach my bracket in a permanent manner I left enough metal to drill a hole and use a seat bolt to hold it down.(Figure 7, 8 & 9) The pressure of the seat holds it firmly.


Now running the wire out from the radio over to the center console, which can be seen in figure 7 & 8. I then ran it through the center console all the way to the front. Up behind the dash and out where the knee panel meets the speed cluster surround.(figure 5 & 6, at the top)Using the factory Kenwood radio mount as a guide, I drilled 4 holes in the sheet metal. Then I bolted it together.

Basically this is all to my mobile installation. There’s a few extra pictures I’ll share here at the bottom.

I’ll write up my external speaker setup later.

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10/5/12

Kenwood TM-V71A Dual Band: Installation in Dodge Nitro, Continued Part 2 – Disassembly

To continue with with my previous post about my mobile installation of my Kenwood TM-V71A dualband. So we are done figuring out the logistics of actually setup up the remote head. Now on to my method of mounting.

As mentioned I’m driving a Dodge Nitro SUV. I initially thought that this mobile install was going to be a pain. Actually it’s not remotely difficult. Getting power into the cabin from the battery is super easy, opening up the dash is super easy, as is the center console and mounting both parts is easy.
gauges

Looking at the image to the left, figure 2, you see a picture of a Dodge Nitro dash. With the battery of the SUV being on the left side, drivers side, that is where I focused my efforts in wiring.

Looking at the image to the left, figure 2, you see the speedo cluster, the knee panel, radio area and center console.
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1. I failed to snap a picture of the removal of the speed cluster dash area. But it is as follows. Lower the steering wheel all the way down. Firmly grasp the top most forward plastic and pull back towards yourself.

2. Two remove the knee panel that is below the steering wheel. The the top plastic edge of the knee panel exposed, firmly grasp and pull down with even force. Doesn’t take much at all. Only two clip hold up the hinged panel. Once it has hinged down as far as it will, slide the panel 3 inches to the left and it comes off.
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3. If you look at the shifter there in the front middle off the console.(Figure 3) You see the frame that looks like brushed metal. It is plastic so go easy. If you are in this truck looking down at it, you notice a gap between the shift base and this faux metal area. Insert  tips of your fingers and pull up gently. It helps to engage the ebreak.

4. Next if your sitting in the back seat looking a the rear of the center console near the floor you’ll see that the back cover is one piece. Very easy, just grasp it and pull slightly. I’ve included a picture with it removed as I don’t have one from before. (Figure 4)
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5. Lastly after popping the hood move to the drivers side, near the brake master cylinder. Look on the firewall under the brake master cylinder and to the right near the fender. In this area there are two pass troughs on the firewall. On my vehicle one is fully in use from the factory but the over merely looks like a rubber plug. Pull the out the plug. No tools needed, it just pulls out. Don’t those it.

Disassembly Complete.
To be continued…

Continued in Post 3: Mounting and Assembly

10/4/12

Kenwood TM-V71A Dual Band: Installation in a Dodge Nitro

This write up is on an installation of a Kenwood TM-V71A Dual Band VHF & UHF mobile amateur radio into a Dodge Nitro SUV. The Kenwood TM-V71A radio is a modern radio with remote control head capability. Technically a remote head kit available from Kenwood is required to take advantage of this feature, but in reality this isn’t true. The remote kit certainly will make your installation easier. The kit would include a adapter and bracket to attach the head to and the specialized cables to hook the head to the body. The basic remote kit only includes an extended cable for the head to radio, no extension for mic to radio. There is an extended remote kit available that I believe has the basics, plus a extended mic and power cable adapters.

With that said, here is how I did it. If you take a look at the small cable that hooks the remote head to the body when they are hooked together you will see that one end is a RJ-45connector(standard ethernet connection) and the other end is a slim RJ-12 connector. Similar to a telephone line(same wiring), but about 1/4 thinner. Then at the termination of the mic cable you’ll see that the connection is also a RJ-45 connector. These two RJ-45 connections are standard size. So to extend this to connections I acquired two RJ-45 male to male couplers, as scene in figure 1.

I should mention I looked for a couple days for this special RJ-12 cable with no luck. I could have fabricated something up, but my method is easier.

To complete all these extended connections here’s what you will need:

  1. 2x RJ-45 couplers
  2. 2x Ethernet Cables(for efficiency’s sake, short as possible)
  3. 2x Ferrite Choke(Optional)

Step 1. Plug a coupler onto each ethernet cable
Step 2. Plug an ethernet cable into the head and into the microphone plug
Step 3. Plug the appropriate end of the include head wire into your extension
Step 4. Make your mic connections

Now this is an optional step but in the kit you can see that cable has a ferrite choke to keep RF emissions traveling down your remote cable. I ordered two from Mouser. I’m going to do it.

***Found these specifically fitted for CAT5 cable***
http://www.iautomate.com/products/Ferrite-Chokes-for-RFID-CAT5-Installations.html

Continued in Post 2:Disassembly

03/7/12

What is Amateur Radio?

Amateur Radio (or “ham radio”) provides the broadest and most powerful wireless communications capability available to any private citizen anywhere in the world. This worldwide community of ham radio operators use their radios for emergencies, experimentation, and fun!

03/7/12

What is Amateur Radio?

Amateur Radio (or “ham radio”) provides the broadest and most powerful wireless communications capability available to any private citizen anywhere in the world. This worldwide community of ham radio operators use their radios for emergencies, experimentation, and fun!

02/1/12

My HT and it’s new Case

So I have not really covered it yet, but I own a HT, handheld ham radio. And I’ve found a basic, good and useful storage case for it. First, let me tell you, briefly, about rig I have a Yaesu VX-8DR and I love it! It has multiple features; operates 6 & 2 meters and 440mhz, supports APRS with GPS dongle, tough as nails and compact. I run the stock battery just for slim-ness of it, I have the shoulder mic and a upgraded antenna. Normally when I carry, which with it’s size is a lot. Most of my backpacks are molle compatible, so I normally carry it in a 5.11 Tactical Radio Pouch. Some times when all I have is my side bag I’ll tuck it in a side pocket of that.

But on occasion I do pack it in something, it might be luggage or it just might be, actually, inside my backpack. And that’s what I’ve got today. A little back-story first. With this school semester I am transitioning back and forth between 3 bags. Well when I carry a bag, whether it’s one of my 2 backpacks or my messenger bag, there’s a certain set of tools and things I like to carry. No matter what. So after switching 3 times a week for 3 weeks now I’m tired of it and I have been researching smaller bags to keep the actual things in. So instead of moving 20 things, I move 5 to 6 pouches. Much better.

Well I picked up the Zeikos IR-NEO36 Black Neoprene Carrying Case. It’s a nice little case and when I ever pack my little HT in something I will use this little case for it’s protection. It’s got a nice padded feeling to it, the inside is lined with a nylon fabric, the outside is neoprene and it has a solid feeling zipper. The best part is that the total with tax and shipping, out there door to mine cost me $1.09. I will b buying more. I will probably buy several more for other radio parts, cables, and etc.

At a later date I’ll do a more detailed review of the radio and case but for now info can be found at the links above.

01/31/12

My HT and it’s new Case

So I have not really covered it yet, but I own a HT, handheld ham radio. And I’ve found a basic, good and useful storage case for it. First, let me tell you, briefly, about rig I have a Yaesu VX-8DR and I love it! It has multiple features; operates 6 & 2 meters and 440mhz, supports APRS with GPS dongle, tough as nails and compact. I run the stock battery just for slim-ness of it, I have the shoulder mic and a upgraded antenna. Normally when I carry, which with it’s size is a lot. Most of my backpacks are molle compatible, so I normally carry it in a 5.11 Tactical Radio Pouch. Some times when all I have is my side bag I’ll tuck it in a side pocket of that.

 

But on occasion I do pack it in something, it might be luggage or it just might be, actually, inside my backpack. And that’s what I’ve got today. A little back-story first. With this school semester I am transitioning back and forth between 3 bags. Well when I carry a bag, whether it’s one of my 2 backpacks or my messenger bag, there’s a certain set of tools and things I like to carry. No matter what. So after switching 3 times a week for 3 weeks now I’m tired of it and I have been researching smaller bags to keep the actual things in. So instead of moving 20 things, I move 5 to 6 pouches. Much better.

 

Well I picked up the Zeikos IR-NEO36 Black Neoprene Carrying Case. It’s a nice little case and when I ever pack my little HT in something I will use this little case for it’s protection. It’s got a nice padded feeling to it, the inside is lined with a nylon fabric, the outside is neoprene and it has a solid feeling zipper. The best part is that the total with tax and shipping, out there door to mine cost me $1.09. I will b buying more. I will probably buy several more for other radio parts, cables, and etc.

 

At a later date I’ll do a more detailed review of the radio and case but for now info can be found at the links above.