Jeep Wrangler Forum - Reply to Topic
Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > General Tech Forums > Communications and Electronics > Ham radio installed

Join Wrangler Forum Today


Thread: Ham radio installed Reply to Thread
Title:
  
Message:
Post Icons
You may choose an icon for your message from the following list:
 

Register Now

In order to be able to post messages on the Jeep Wrangler Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Additional Options
Miscellaneous Options

Topic Review (Newest First)
04-05-2012 09:54 PM
md gp
Quote:
Originally Posted by ThingsAbove View Post
You're correct. That lip mount I used on the hood is a K412s not a K515. As far as using a K400, that mount has a tab that sticks out opposite the lip side to stabilize it. It would be OK when mounted on a flat hood or on the rear gate but I'd be concerned that mounting it vertically on that bottom edge hood that it might flex around and contact the body when closing the hood. The K400 is a large mount so keep that in mind as well.

All the best with your install.
Thanks again.
04-05-2012 09:01 AM
ThingsAbove
Quote:
Originally Posted by leadZERO
Another question I thought of yesterday... For those of your putting the box under the seat, what did you do for power? Run through the holes in the upper corner?
Positive direct to battery. Fuse right at battery then again before radio. I run the ground to a chassis ground rather than battery. There is much debate about how to treat the ground and I won't go into it here but all agree that you should not run positive through any part of your vehicles electrical system. Use a #6 stranded or larger.
04-05-2012 07:23 AM
leadZERO Another question I thought of yesterday... For those of your putting the box under the seat, what did you do for power? Run through the holes in the upper corner?
04-05-2012 05:53 AM
ThingsAbove
Quote:
Originally Posted by JokerAndThief View Post
Mounting the antenna towards the front also improves the ground plane loading of the antenna, making it a much more efficient radiator.

Wouldn't a screwdriver get beat to death on the trail? Have always wondered if an active antenna system would work better. Then again, I also run HF though a 103" whip (through a BIG tuner), so what the hell do I know <grin>

KG4CXY
I would disconnect a screwdriver HF antenna before heading into anything too rough.

A tuned whip is a great idea but I didn't know an auto-tuner would work on a long wire less than about 20 feet. Or are you using a manual antenna matcher? With a manual impedance matcher you could "tune" a roof rack

I'd be curious to hear about your setup.

PS. I don't know if you recall but you and I have worked a couple of volunteer Ham events together.

N4PBQ

73s
04-05-2012 05:36 AM
ThingsAbove
Quote:
Originally Posted by md gp View Post
Thanks for responding. The Diamond K515 is marketed as a SUV rack mount; did you have to modify it for use on the hood. I'm thinking the K400 may be a better choice for me. I still haven't decided whether to stick to 2 meter/440 or go to HF also. I'm thinking I may just start with the FM and then add a second antenna for HF later. Thanks again.
You're correct. That lip mount I used on the hood is a K412s not a K515. As far as using a K400, that mount has a tab that sticks out opposite the lip side to stabilize it. It would be OK when mounted on a flat hood or on the rear gate but I'd be concerned that mounting it vertically on that bottom edge hood that it might flex around and contact the body when closing the hood. The K400 is a large mount so keep that in mind as well.

All the best with your install.
04-04-2012 11:29 PM
JokerAndThief Mounting the antenna towards the front also improves the ground plane loading of the antenna, making it a much more efficient radiator.

Wouldn't a screwdriver get beat to death on the trail? Have always wondered if an active antenna system would work better. Then again, I also run HF though a 103" whip (through a BIG tuner), so what the hell do I know <grin>

KG4CXY
03-30-2012 08:02 PM
Jeeplover1 mmmmm HAM
03-30-2012 08:00 PM
DeeJayy
Quote:
Originally Posted by md gp View Post
Thanks for responding. The Diamond K515 is marketed as a SUV rack mount; did you have to modify it for use on the hood. I'm thinking the K400 may be a better choice for me. I still haven't decided whether to stick to 2 meter/440 or go to HF also. I'm thinking I may just start with the FM and then add a second antenna for HF later. Thanks again.
I'm in the process of determing the same thing, granted I still need my General license but from what I've heard 2 meters and 440 is the way to go with Jeeps but we all know more is always better
03-29-2012 11:51 PM
md gp
Quote:
Originally Posted by ThingsAbove View Post
The one pictured on the hood is a Diamond K515. I wouldn't put an HF screwdriver antenna on the K515. I have used a K400 with both a Yaesu screwdriver HF/2M and a baby Tarheel on the hood of an F250 for years. The Tarheel is a great antenna by the way but the Yaesu AT screwdriver works seamlessly with the FT857 (which I've owned in the past). The Yaesu is easier to use until it gets wet inside.

Using a lip mount on the Jeep hood in that location should be relatively safe because the metal is curved giving it more strength than a flat section. I park in a garage so I can't have a very tall antenna on normally. I keep a dual band on normally and if I go on a trip I put the tri-band antenna SBB15 on which is about 5 feet long. I've used that antenna on the K515 mount on a door in the past without issues.

I tried my K400 mount on the rear gate lip mounted between the hinges. I ground strapped the door and the mount appeared solid and didn't interfere with the rear window opening when the gate was fully open. This put the radiating portion of the antenna above the metal of the Jeep body but then I noticed that it was within 6 inches of the defroster lines in the rear window. If you are running 50watts or more I would be concerned that (apart from high SWR) that the defroster wiring might act as a receiving antenna and potentially feed RF back into the electrical system of the Jeep. I have fried other electrical systems running only 100w in 6m so be careful.

As I'm considering where to mount my HF antenna I will probably use one of the Tarheel antenna mounts and move the antenna to the drivers side rear corner to get it away from the body of the vehicle and down nearer the road to reduce overall height and improve radiation. Mounts If you haven't previously done HF mobile before be prepared to spend many hours tracking down RF noise and then ground strapping and adding RF beads to all sorts of things in your Jeep. Getting rid of noise in a mobile HF rig is half the fun of Ham radio

I used to do CW while traveling but my Morse skills have degraded to the point where I only do voice or psk on HF now.

73s
Thanks for responding. The Diamond K515 is marketed as a SUV rack mount; did you have to modify it for use on the hood. I'm thinking the K400 may be a better choice for me. I still haven't decided whether to stick to 2 meter/440 or go to HF also. I'm thinking I may just start with the FM and then add a second antenna for HF later. Thanks again.
03-29-2012 04:44 PM
Sccafire
Quote:
Originally Posted by leadZERO View Post
Would you mind taking a picture of the under-the-dash install? I've been torn trying to decide where to put the transceiver... I'm pretty sure I'd like to put the faceplate up above the rear view mirror (keep it a little away from hungry eyes). I thought about just mounting the transceiver under the passenger seat. But I'd hate to short it out if I ever end up in water. (That said, if I get my 1-year old carpet under water this soon, I'm gonna be crying anyway.) I was wondering if there was somewhere behind the dash that I could mount it. Haven't really taken the time to look around back there yet.

(I already have a Cobra 75 mounted behind the glove box...)

Ryan
Here is my install. Faceplate above rearview mirror and transerver mounted in back of Jeep.

Yeasu FT-8800R Install - JeepForum.com

OP: Sorry for going off topic or to take away from your thread. leadzero PM me if you have any questions.
03-29-2012 08:26 AM
ThingsAbove
Quote:
Originally Posted by md gp View Post
Howdy,
I have a new JKU and am trying to decide on the best antenna mount. Which Diamond mount did you use? Do you think the hood metal will hold up over time?
I have a fender mount in the same general location on my 98 TJ. It tore the fender metal with a 4 foot spring mounted antenna. I got the tear welded, added a brace and went to a three foot antenna. Now it's very stable. My TJ just has a CB for short range use.
I'm a Ham, looking to add a Yaesu FT7900R or FT857D in the JKU. I've read quite a bit about the various tailgate and other rear mounts, but I'm looking for the best possible antenna mount. Thanks in advance for any additional advice.
73,
Dave
The one pictured on the hood is a Diamond K515. I wouldn't put an HF screwdriver antenna on the K515. I have used a K400 with both a Yaesu screwdriver HF/2M and a baby Tarheel on the hood of an F250 for years. The Tarheel is a great antenna by the way but the Yaesu AT screwdriver works seamlessly with the FT857 (which I've owned in the past). The Yaesu is easier to use until it gets wet inside.

Using a lip mount on the Jeep hood in that location should be relatively safe because the metal is curved giving it more strength than a flat section. I park in a garage so I can't have a very tall antenna on normally. I keep a dual band on normally and if I go on a trip I put the tri-band antenna SBB15 on which is about 5 feet long. I've used that antenna on the K515 mount on a door in the past without issues.

I tried my K400 mount on the rear gate lip mounted between the hinges. I ground strapped the door and the mount appeared solid and didn't interfere with the rear window opening when the gate was fully open. This put the radiating portion of the antenna above the metal of the Jeep body but then I noticed that it was within 6 inches of the defroster lines in the rear window. If you are running 50watts or more I would be concerned that (apart from high SWR) that the defroster wiring might act as a receiving antenna and potentially feed RF back into the electrical system of the Jeep. I have fried other electrical systems running only 100w in 6m so be careful.

As I'm considering where to mount my HF antenna I will probably use one of the Tarheel antenna mounts and move the antenna to the drivers side rear corner to get it away from the body of the vehicle and down nearer the road to reduce overall height and improve radiation. Mounts If you haven't previously done HF mobile before be prepared to spend many hours tracking down RF noise and then ground strapping and adding RF beads to all sorts of things in your Jeep. Getting rid of noise in a mobile HF rig is half the fun of Ham radio

I used to do CW while traveling but my Morse skills have degraded to the point where I only do voice or psk on HF now.

73s
03-28-2012 11:24 PM
md gp
Hood mount

Quote:
Originally Posted by ThingsAbove View Post
I just finished installing my Yaesu quad band mobile unit in my new JKU. This was definitely the easiest mobile instlation I've performed. Kudos to Jeep enginners for making the firewall passthru so accessible. The interior panels are also easy to remove and replace and ther is lots of space inside for the various components.
My last vehicle (Dodge Challenger) didn't have any room for a clean install so I've been running without a mobile rig for a while and its nice to be able to be on the air mobile again.
I used one of my Diamond mounts on the drivers side hood and the hood was already ground strapped which was nice.

73s
Howdy,
I have a new JKU and am trying to decide on the best antenna mount. Which Diamond mount did you use? Do you think the hood metal will hold up over time?
I have a fender mount in the same general location on my 98 TJ. It tore the fender metal with a 4 foot spring mounted antenna. I got the tear welded, added a brace and went to a three foot antenna. Now it's very stable. My TJ just has a CB for short range use.
I'm a Ham, looking to add a Yaesu FT7900R or FT857D in the JKU. I've read quite a bit about the various tailgate and other rear mounts, but I'm looking for the best possible antenna mount. Thanks in advance for any additional advice.
73,
Dave
03-25-2012 10:11 PM
ThingsAbove
Quote:
Originally Posted by leadZERO View Post
Would you mind taking a picture of the under-the-dash install? I've been torn trying to decide where to put the transceiver... I'm pretty sure I'd like to put the faceplate up above the rear view mirror (keep it a little away from hungry eyes). I thought about just mounting the transceiver under the passenger seat. But I'd hate to short it out if I ever end up in water. (That said, if I get my 1-year old carpet under water this soon, I'm gonna be crying anyway.) I was wondering if there was somewhere behind the dash that I could mount it. Haven't really taken the time to look around back there yet.

(I already have a Cobra 75 mounted behind the glove box...)

Ryan
Here is a closeup of the under dash install of the head unit.



I tried mounting it above the mirror but the contrast on the display works better when viewed from above and I didn't like the mic cord hanging down in my view so I mounted it under the dash. It was also hard to reach above the mirror as there are a lot of small controls on the face of that unit.

The main unit is mounted securely to the bottom of the seat. It is actually a couple of inches above the carpet (difficult to tell from picture) but that should keep it out of a casual bit of water getting in the vehicle. It also keeps it from tumbling around under there.



Let me know if you have any more questions.
03-25-2012 07:51 PM
leadZERO
Quote:
Originally Posted by ThingsAbove View Post
It has a detachable faceplate with a remote mount bracket. The head attaches to the transceiver using an rj45 cable.

I use automotive 3M double sided adhesive tape to attach the mount bracket to the underside of the lip of the dash. I've used the 3M tape for a number of installs over the years and it has always held well and comes off without damaging the dash in most cases.
Would you mind taking a picture of the under-the-dash install? I've been torn trying to decide where to put the transceiver... I'm pretty sure I'd like to put the faceplate up above the rear view mirror (keep it a little away from hungry eyes). I thought about just mounting the transceiver under the passenger seat. But I'd hate to short it out if I ever end up in water. (That said, if I get my 1-year old carpet under water this soon, I'm gonna be crying anyway.) I was wondering if there was somewhere behind the dash that I could mount it. Haven't really taken the time to look around back there yet.

(I already have a Cobra 75 mounted behind the glove box...)

Ryan
03-25-2012 07:40 PM
ThingsAbove
Quote:
Originally Posted by leadZERO View Post
How did you mount the faceplate there? Or does that radio have a separate faceplate/radio?
It has a detachable faceplate with a remote mount bracket. The head attaches to the transceiver using an rj45 cable.

I use automotive 3M double sided adhesive tape to attach the mount bracket to the underside of the lip of the dash. I've used the 3M tape for a number of installs over the years and it has always held well and comes off without damaging the dash in most cases.
03-25-2012 07:21 PM
leadZERO How did you mount the faceplate there? Or does that radio have a separate faceplate/radio?
03-25-2012 07:19 PM
ThingsAbove
Pictures

Comet antenna on Diamond Mount

Head Unit

Speaker on driver B pillar

Easy Firewall access
03-25-2012 05:14 PM
ThingsAbove
Ham radio installed

I just finished installing my Yaesu quad band mobile unit in my new JKU. This was definitely the easiest mobile instlation I've performed. Kudos to Jeep enginners for making the firewall passthru so accessible. The interior panels are also easy to remove and replace and ther is lots of space inside for the various components.
My last vehicle (Dodge Challenger) didn't have any room for a clean install so I've been running without a mobile rig for a while and its nice to be able to be on the air mobile again.
I used one of my Diamond mounts on the drivers side hood and the hood was already ground strapped which was nice.

73s

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


All times are GMT -5. The time now is 05:43 PM.



Jeep®, Wrangler, Liberty, Wagoneer, Cherokee, and Grand Cherokee are copyrighted and trademarked to Chrysler Motors LLC.
Wranglerforum.com is not in any way associated with the Chrysler Motors LLC