HAM antenna
06-27-2007, 08:37 PM
#34
Guest
Posts: n/a
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
<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
06-27-2007, 08:37 PM
#35
Guest
Posts: n/a
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
<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
06-27-2007, 08:37 PM
#36
Guest
Posts: n/a
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
<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
06-27-2007, 08:37 PM
#37
Guest
Posts: n/a
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
<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
06-28-2007, 08:52 AM
#38
Guest
Posts: n/a
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.
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.
06-28-2007, 08:52 AM
#39
Guest
Posts: n/a
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.
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.
06-28-2007, 08:52 AM
#40
Guest
Posts: n/a
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.
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.