Re: HAM antenna
 

> By "power leg" , do you mean the 12 volt wire for power ?

You'd be amazed how much RF travels down the power line. The worst
offenders are amplifiers. And high-power audio amps have DC-DC
inverters in them that create mucho hash.

Re: HAM antenna
 

> By "power leg" , do you mean the 12 volt wire for power ?

You'd be amazed how much RF travels down the power line. The worst
offenders are amplifiers. And high-power audio amps have DC-DC
inverters in them that create mucho hash.

Re: HAM antenna
 

> By "power leg" , do you mean the 12 volt wire for power ?

You'd be amazed how much RF travels down the power line. The worst
offenders are amplifiers. And high-power audio amps have DC-DC
inverters in them that create mucho hash.

Re: Re: HAM antenna
 

On Wed, 27 Jun 2007 20:11:29 -0400, Scott in Baltimore
<sDcOoNtTtS_PuAnMiMtE_69@yahoo.com> wrote:

>> By "power leg" , do you mean the 12 volt wire for power ?
>
>You'd be amazed how much RF travels down the power line. The worst
>offenders are amplifiers. And high-power audio amps have DC-DC
>inverters in them that create mucho hash.


Yes you are right, there is a lot of hash and RF going down them back
into car. ALso, yes I am refering to the 12 volt power feed.
-----------------
TheSnoMan.com

Re: Re: HAM antenna
 

On Wed, 27 Jun 2007 20:11:29 -0400, Scott in Baltimore
<sDcOoNtTtS_PuAnMiMtE_69@yahoo.com> wrote:

>> By "power leg" , do you mean the 12 volt wire for power ?
>
>You'd be amazed how much RF travels down the power line. The worst
>offenders are amplifiers. And high-power audio amps have DC-DC
>inverters in them that create mucho hash.


Yes you are right, there is a lot of hash and RF going down them back
into car. ALso, yes I am refering to the 12 volt power feed.
-----------------
TheSnoMan.com

Re: Re: HAM antenna
 

On Wed, 27 Jun 2007 20:11:29 -0400, Scott in Baltimore
<sDcOoNtTtS_PuAnMiMtE_69@yahoo.com> wrote:

>> By "power leg" , do you mean the 12 volt wire for power ?
>
>You'd be amazed how much RF travels down the power line. The worst
>offenders are amplifiers. And high-power audio amps have DC-DC
>inverters in them that create mucho hash.


Yes you are right, there is a lot of hash and RF going down them back
into car. ALso, yes I am refering to the 12 volt power feed.
-----------------
TheSnoMan.com

Re: Re: HAM antenna
 

On Wed, 27 Jun 2007 20:11:29 -0400, Scott in Baltimore
<sDcOoNtTtS_PuAnMiMtE_69@yahoo.com> wrote:

>> By "power leg" , do you mean the 12 volt wire for power ?
>
>You'd be amazed how much RF travels down the power line. The worst
>offenders are amplifiers. And high-power audio amps have DC-DC
>inverters in them that create mucho hash.


Yes you are right, there is a lot of hash and RF going down them back
into car. ALso, yes I am refering to the 12 volt power feed.
-----------------
TheSnoMan.com

Re: HAM antenna
 

You should always tap 2-way radio power DIRECTLY from the battery
terminals. Make these leads fused.

tw

SnoMan wrote:
> The "problem" with this info is it does not cover one of the bigger
> threats to car electronics or how to deal with it. One of the biggest
> potentail problems is a RF feedback through power leg of transceiver
> into cars electrical system. None of those tips deal with that. The
> way to combat that is to install a filter choke in power legs of
> transceiver to block it. I have done this for many years in many
> vehcle with Ham radio equipment and I have never had a problem even
> with cars that actually advise against it.
> -----------------
> TheSnoMan.com


--
PLEASE REMOVE THE "OBVIOUS" TO REPLY.

Re: HAM antenna
 

You should always tap 2-way radio power DIRECTLY from the battery
terminals. Make these leads fused.

tw

SnoMan wrote:
> The "problem" with this info is it does not cover one of the bigger
> threats to car electronics or how to deal with it. One of the biggest
> potentail problems is a RF feedback through power leg of transceiver
> into cars electrical system. None of those tips deal with that. The
> way to combat that is to install a filter choke in power legs of
> transceiver to block it. I have done this for many years in many
> vehcle with Ham radio equipment and I have never had a problem even
> with cars that actually advise against it.
> -----------------
> TheSnoMan.com


--
PLEASE REMOVE THE "OBVIOUS" TO REPLY.

Re: HAM antenna
 

You should always tap 2-way radio power DIRECTLY from the battery
terminals. Make these leads fused.

tw

SnoMan wrote:
> The "problem" with this info is it does not cover one of the bigger
> threats to car electronics or how to deal with it. One of the biggest
> potentail problems is a RF feedback through power leg of transceiver
> into cars electrical system. None of those tips deal with that. The
> way to combat that is to install a filter choke in power legs of
> transceiver to block it. I have done this for many years in many
> vehcle with Ham radio equipment and I have never had a problem even
> with cars that actually advise against it.
> -----------------
> TheSnoMan.com


--
PLEASE REMOVE THE "OBVIOUS" TO REPLY.