|03-06-2013 04:16 PM|
|02-25-2013 06:55 AM|
|zephoria||man, that's an awesome resource. thank you so much. it's been soooo long since I originally received my license and I haven't messed around with ham stuff in the last 10 years or so. I wish I had a hard top, it would make securing my equipment much easier.|
|02-22-2013 05:11 PM|
|Wrong Way Hal||
The ground plane should be at least 1/4 wave of the operating frequency. So using the conversion from Online Conversion - Frequency Wavelength Calculator, assuming a center freq of 146.000 MHz, the 1/4 wavelength is 20.22 inches.
Ideally, the ground plane should extend equally in all directions. Kind of hard to do with a JK unless you attach some sheet metal to the inside top of a hardtop. You could also use some copper tape similar to Amazon.com: Ranger Memory Glass Foil Tape 1/4 Inch 15 Feet Per Roll, Copper: Arts, Crafts & Sewing. You can attach this tape to the inside top of a hardtop. I would make at least 8 equally spaced spokes, each 20 1/4 inches in length. Be sure to attach each spoke to the shield/ground portion of your antenna.
|02-22-2013 03:45 PM|
|zephoria||awesome. also, how much of a ground plane does a dual band antenna need? anyone know? I'm about to get rid of my stock spare tire setup in Lu of a custom one I want to build myself. I plan on incorporating a mounting point for a dualbander|
|02-19-2013 12:44 PM|
Most of today's dual band radios have a remote head unit that atachs to a bracket. Push a latch and the pop off, then they snap back in. I have not seen that for the single banders.
For your existing radio, maybe you could cut slots to the holes in the mounting bracket so instead of removing the screws (hopefully they have knobs like most CB's do) you just loosen them and slid it out. Put a disconnet like Anderson Power Poles on the power wires.
It's slower than snapping off a faceplate, but cheaper than buying a new radio. Of course any excuse to buy a new toy is worth it.
|02-18-2013 08:36 PM|
amatuer radio security
hi ya, i have a 93 yj soft top that i run topless during the summer. i have renewed my ham license in november. i have an old icom 2710 (i believe thats the model number) that i have used the relocation kit for in previous fixed-topped vehicles. i have never really had to worry about my rig being stolen because i can completely lock the doors and set the alarm, i also live in a fairly safe town. dont worry, im not delusional, i know that i am just one unsecured screwdriver away from being robbed of said screwdriver. i plan on making my own center console that will be rather tough to break into but i worry about the face of my potential new radio. my 2710's relocation setup required a screwdriver to remove the face from the extension cable. do mobile rigs made these days have a better way to remove the face for secure storage or will i have to rethink my console/dash design to accommodate the face for more permanent storage in dash?