Re: CB power
 

Here's a good link to read

http://www.neons.org/neontsb/TSB/08/081698.htm


Nathan Otis wrote:
>
> Hey fellas. I'm wiring a new CB tomorrow and I want to do it right. I
> can't find the exact answer I'm looking for on the All Seeing Eye, so
> here I am.
>
> When wiring power, I understand it's best to go to the source (battery).
> What I don't know is...
>
> 1. Should BOTH the red AND black wire be connected to the battery @ pos
> and neg terminals respectively?
>
> 2. If not, then the black wire should be attached to ground, but where?
>
> 2a. Should I ground in the engine compartment or...
>
> 2b. Is it best to make the ground wire as short as possible (i.e.,
> shorten the black wire to around a foot or two and ground in the cab)?
>
>
> Thanks.
> n.

Re: CB power
 

Bill Spiliotopoulos wrote:

Also the antenna must be mounted on a
> non-metalic mount, to avoid grounding at the antenna mounting point.
>
> Bill Spiliotopoulos,
> '96 XJ,
> '06 TJ.

This is very bad advice unless the antenna is a "no-ground plane" type
Not mounting the base of the antenna to ground will give a very bad
SWR. The antenna needs the metal base of the vehicle for the
"ground plane"

What'd I'd do is to mount the radio on the metal of the Jeep
connect the gnd wire close to the radio, Run a power wire
directly to the battery with a inline fuse right at the battery.


Here's a few links

http://www.neons.org/neontsb/TSB/08/081698.htm


http://www.signalengineering.com/ult..._antennas.html

http://www.wilsonantenna.com/jeep.htm


http://jeephorizons.com/tech/cb_ant_basic.html

Re: CB power
 

Bill Spiliotopoulos wrote:

Also the antenna must be mounted on a
> non-metalic mount, to avoid grounding at the antenna mounting point.
>
> Bill Spiliotopoulos,
> '96 XJ,
> '06 TJ.

This is very bad advice unless the antenna is a "no-ground plane" type
Not mounting the base of the antenna to ground will give a very bad
SWR. The antenna needs the metal base of the vehicle for the
"ground plane"

What'd I'd do is to mount the radio on the metal of the Jeep
connect the gnd wire close to the radio, Run a power wire
directly to the battery with a inline fuse right at the battery.


Here's a few links

http://www.neons.org/neontsb/TSB/08/081698.htm


http://www.signalengineering.com/ult..._antennas.html

http://www.wilsonantenna.com/jeep.htm


http://jeephorizons.com/tech/cb_ant_basic.html

Re: CB power
 

Bill Spiliotopoulos wrote:

Also the antenna must be mounted on a
> non-metalic mount, to avoid grounding at the antenna mounting point.
>
> Bill Spiliotopoulos,
> '96 XJ,
> '06 TJ.

This is very bad advice unless the antenna is a "no-ground plane" type
Not mounting the base of the antenna to ground will give a very bad
SWR. The antenna needs the metal base of the vehicle for the
"ground plane"

What'd I'd do is to mount the radio on the metal of the Jeep
connect the gnd wire close to the radio, Run a power wire
directly to the battery with a inline fuse right at the battery.


Here's a few links

http://www.neons.org/neontsb/TSB/08/081698.htm


http://www.signalengineering.com/ult..._antennas.html

http://www.wilsonantenna.com/jeep.htm


http://jeephorizons.com/tech/cb_ant_basic.html

Re: CB power
 

Bill Spiliotopoulos wrote:

Also the antenna must be mounted on a
> non-metalic mount, to avoid grounding at the antenna mounting point.
>
> Bill Spiliotopoulos,
> '96 XJ,
> '06 TJ.

This is very bad advice unless the antenna is a "no-ground plane" type
Not mounting the base of the antenna to ground will give a very bad
SWR. The antenna needs the metal base of the vehicle for the
"ground plane"

What'd I'd do is to mount the radio on the metal of the Jeep
connect the gnd wire close to the radio, Run a power wire
directly to the battery with a inline fuse right at the battery.


Here's a few links

http://www.neons.org/neontsb/TSB/08/081698.htm


http://www.signalengineering.com/ult..._antennas.html

http://www.wilsonantenna.com/jeep.htm


http://jeephorizons.com/tech/cb_ant_basic.html

Re: CB power
 

I agree. I posted this late at night and wasn't clearly thinking.

After some more thought, I have to say that the antenna mount must be
grounded to the car body, so the RF circuit closes through the antenna cable
ground. Otherwise the antenna cable becomes an antenna itself, changing the
RF output impedance and increased SWR.

I would also ground the CB unit with the GND power supply wire on the
battery terminal.
I wouldn't ground the CB chassis though, as this would create an alternative
RF path bypassing the antenna cable ground and increasing SWR again. An RF
filter may be required on both power supply wires, if not already included
inside the CB unit, to prevent an RF loop through the power supply wires.

Sorry for the confusion.

Bill Spiliotopoulos,
'96 XJ,
'06 TJ.



"FrankW" <fworm@norpak.ca> wrote in message
news:49c03$46e537e5$401a8812$20562@PRIMUS.CA...
>
>
> Bill Spiliotopoulos wrote:
>
> Also the antenna must be mounted on a
>> non-metalic mount, to avoid grounding at the antenna mounting point.
>>
>> Bill Spiliotopoulos,
>> '96 XJ,
>> '06 TJ.
>
> This is very bad advice unless the antenna is a "no-ground plane" type
> Not mounting the base of the antenna to ground will give a very bad
> SWR. The antenna needs the metal base of the vehicle for the
> "ground plane"
>
> What'd I'd do is to mount the radio on the metal of the Jeep
> connect the gnd wire close to the radio, Run a power wire
> directly to the battery with a inline fuse right at the battery.
>
>
> Here's a few links
>
> http://www.neons.org/neontsb/TSB/08/081698.htm
>
>
> http://www.signalengineering.com/ult..._antennas.html
>
> http://www.wilsonantenna.com/jeep.htm
>
>
> http://jeephorizons.com/tech/cb_ant_basic.html
>

Re: CB power
 

I agree. I posted this late at night and wasn't clearly thinking.

After some more thought, I have to say that the antenna mount must be
grounded to the car body, so the RF circuit closes through the antenna cable
ground. Otherwise the antenna cable becomes an antenna itself, changing the
RF output impedance and increased SWR.

I would also ground the CB unit with the GND power supply wire on the
battery terminal.
I wouldn't ground the CB chassis though, as this would create an alternative
RF path bypassing the antenna cable ground and increasing SWR again. An RF
filter may be required on both power supply wires, if not already included
inside the CB unit, to prevent an RF loop through the power supply wires.

Sorry for the confusion.

Bill Spiliotopoulos,
'96 XJ,
'06 TJ.



"FrankW" <fworm@norpak.ca> wrote in message
news:49c03$46e537e5$401a8812$20562@PRIMUS.CA...
>
>
> Bill Spiliotopoulos wrote:
>
> Also the antenna must be mounted on a
>> non-metalic mount, to avoid grounding at the antenna mounting point.
>>
>> Bill Spiliotopoulos,
>> '96 XJ,
>> '06 TJ.
>
> This is very bad advice unless the antenna is a "no-ground plane" type
> Not mounting the base of the antenna to ground will give a very bad
> SWR. The antenna needs the metal base of the vehicle for the
> "ground plane"
>
> What'd I'd do is to mount the radio on the metal of the Jeep
> connect the gnd wire close to the radio, Run a power wire
> directly to the battery with a inline fuse right at the battery.
>
>
> Here's a few links
>
> http://www.neons.org/neontsb/TSB/08/081698.htm
>
>
> http://www.signalengineering.com/ult..._antennas.html
>
> http://www.wilsonantenna.com/jeep.htm
>
>
> http://jeephorizons.com/tech/cb_ant_basic.html
>

Re: CB power
 

I agree. I posted this late at night and wasn't clearly thinking.

After some more thought, I have to say that the antenna mount must be
grounded to the car body, so the RF circuit closes through the antenna cable
ground. Otherwise the antenna cable becomes an antenna itself, changing the
RF output impedance and increased SWR.

I would also ground the CB unit with the GND power supply wire on the
battery terminal.
I wouldn't ground the CB chassis though, as this would create an alternative
RF path bypassing the antenna cable ground and increasing SWR again. An RF
filter may be required on both power supply wires, if not already included
inside the CB unit, to prevent an RF loop through the power supply wires.

Sorry for the confusion.

Bill Spiliotopoulos,
'96 XJ,
'06 TJ.



"FrankW" <fworm@norpak.ca> wrote in message
news:49c03$46e537e5$401a8812$20562@PRIMUS.CA...
>
>
> Bill Spiliotopoulos wrote:
>
> Also the antenna must be mounted on a
>> non-metalic mount, to avoid grounding at the antenna mounting point.
>>
>> Bill Spiliotopoulos,
>> '96 XJ,
>> '06 TJ.
>
> This is very bad advice unless the antenna is a "no-ground plane" type
> Not mounting the base of the antenna to ground will give a very bad
> SWR. The antenna needs the metal base of the vehicle for the
> "ground plane"
>
> What'd I'd do is to mount the radio on the metal of the Jeep
> connect the gnd wire close to the radio, Run a power wire
> directly to the battery with a inline fuse right at the battery.
>
>
> Here's a few links
>
> http://www.neons.org/neontsb/TSB/08/081698.htm
>
>
> http://www.signalengineering.com/ult..._antennas.html
>
> http://www.wilsonantenna.com/jeep.htm
>
>
> http://jeephorizons.com/tech/cb_ant_basic.html
>

Re: CB power
 

I agree. I posted this late at night and wasn't clearly thinking.

After some more thought, I have to say that the antenna mount must be
grounded to the car body, so the RF circuit closes through the antenna cable
ground. Otherwise the antenna cable becomes an antenna itself, changing the
RF output impedance and increased SWR.

I would also ground the CB unit with the GND power supply wire on the
battery terminal.
I wouldn't ground the CB chassis though, as this would create an alternative
RF path bypassing the antenna cable ground and increasing SWR again. An RF
filter may be required on both power supply wires, if not already included
inside the CB unit, to prevent an RF loop through the power supply wires.

Sorry for the confusion.

Bill Spiliotopoulos,
'96 XJ,
'06 TJ.



"FrankW" <fworm@norpak.ca> wrote in message
news:49c03$46e537e5$401a8812$20562@PRIMUS.CA...
>
>
> Bill Spiliotopoulos wrote:
>
> Also the antenna must be mounted on a
>> non-metalic mount, to avoid grounding at the antenna mounting point.
>>
>> Bill Spiliotopoulos,
>> '96 XJ,
>> '06 TJ.
>
> This is very bad advice unless the antenna is a "no-ground plane" type
> Not mounting the base of the antenna to ground will give a very bad
> SWR. The antenna needs the metal base of the vehicle for the
> "ground plane"
>
> What'd I'd do is to mount the radio on the metal of the Jeep
> connect the gnd wire close to the radio, Run a power wire
> directly to the battery with a inline fuse right at the battery.
>
>
> Here's a few links
>
> http://www.neons.org/neontsb/TSB/08/081698.htm
>
>
> http://www.signalengineering.com/ult..._antennas.html
>
> http://www.wilsonantenna.com/jeep.htm
>
>
> http://jeephorizons.com/tech/cb_ant_basic.html
>

Re: CB power
 

XS11E wrote:
>
> I've never had any problems in any vehicle because I use a portable CB
> with a magnetic antenna. The antenna grounds only to the CB and the CB
> is powered by and grounded to the ligher socket. It's worked well so
> far....
>
>
I ran a Radio Shack in my younger days and I have to agree with this. I
always used a fused lighter socket plug so I could pull the unit at
night. Sold a bunch to customers and never had a problem or complaint.
For antennas I used both a center loaded magnet mount and a 108"
stainless steel whip. Of course the whip gave better results, but again
the magnet mount could be pulled at night. One caution with magnet
mounts, make sure they're clean and dust free when you put them on. If
the bottom of the magnet mount or vehicle surface is dirty it could mark
the finish of the vehicle.

--
FRH