Re: Liberty CRD Diesel '06: Interference with 2m radio transmissions
 

Ken Weitzel wrote:
>
> Red Jeep wrote:
> >> First, use a direct connection to the battery terminals. Second, twist
> >> the connecting wires 2 or 3 twists per foot from the battery to your
> >> radio. Third, get a GOOD chassis ground connection for the radio.
> >>
> >
> >
> > Excellent advice. I would add: fuse both hot & ground for good measure at
> > the battery ends of the connections. You could also loop the power cord a
> > couple of times and put a ferrite bead on the power leads.
> >
> > Always run heavier wire than you think you'll need. It reduces loss and
> > someday you might want to put out more wattage.
> >
> > If it's a temporary set-up, use one of those gel-cell booster batteried to
> > power your radio.
> >
> > 73s!
>
> Hi...
>
> With all due respect, don't even think about fusing ground.
>
> Take care.
>
> Ken

Fusing the ground is recommended and required to do it properly on a
GM. If the vehicle loses it's body or engine ground strap connection
for any reason (like corrosion for one) the starter or alternator or
body/lights, etc. can use the radio as a ground. This usually lets the
smoke out of the unit big time.

http://service.gm.com/techlineinfo/radio.html

I have installed hundreds of transmitters in one contract I had and when
they came back in for repairs over the years, on about 98% of power
short issues either vehicle related or transmitter system related had
the negative fuse blown before the positive one. There were lots of
cases of blown fuses due to ratty vehicle grounds also.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Canadian Off Road Trips Photos: Non members can still view!
Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
(More Off Road album links at bottom of the view page)

Re: Liberty CRD Diesel '06: Interference with 2m radio transmissions
 

Ken Weitzel wrote:
>
> Red Jeep wrote:
> >> First, use a direct connection to the battery terminals. Second, twist
> >> the connecting wires 2 or 3 twists per foot from the battery to your
> >> radio. Third, get a GOOD chassis ground connection for the radio.
> >>
> >
> >
> > Excellent advice. I would add: fuse both hot & ground for good measure at
> > the battery ends of the connections. You could also loop the power cord a
> > couple of times and put a ferrite bead on the power leads.
> >
> > Always run heavier wire than you think you'll need. It reduces loss and
> > someday you might want to put out more wattage.
> >
> > If it's a temporary set-up, use one of those gel-cell booster batteried to
> > power your radio.
> >
> > 73s!
>
> Hi...
>
> With all due respect, don't even think about fusing ground.
>
> Take care.
>
> Ken

Fusing the ground is recommended and required to do it properly on a
GM. If the vehicle loses it's body or engine ground strap connection
for any reason (like corrosion for one) the starter or alternator or
body/lights, etc. can use the radio as a ground. This usually lets the
smoke out of the unit big time.

http://service.gm.com/techlineinfo/radio.html

I have installed hundreds of transmitters in one contract I had and when
they came back in for repairs over the years, on about 98% of power
short issues either vehicle related or transmitter system related had
the negative fuse blown before the positive one. There were lots of
cases of blown fuses due to ratty vehicle grounds also.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Canadian Off Road Trips Photos: Non members can still view!
Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
(More Off Road album links at bottom of the view page)

Re: Liberty CRD Diesel '06: Interference with 2m radio transmissions
 

Well, I have a '99 TJ with a 40 watt police radio wired from the battery.
Noooo problems in 2 years. Automatic, air, GPS etc also.

When I transmit the GPS loses it's location however.

"Mike Romain" <romainm@sympatico.ca> wrote in message
news:457331DE.106C14F1@sympatico.ca...
> If you contact DC, they might send you the booklet on installing a
> transmitter into the vehicle. They get very specific on where the power
> and grounds can be run as well as the antenna wire.
>
> On GM's for instance, you have to have a 10 ga. dedicated fused power
> and ground line to the battery run far away from any vehicle harnesses
> to avoid voiding the vehicle warranty. Transmitters can interfere with
> things like the ABS and transmission modules, like some TJ's will go
> into neutral when the transmitter is keyed up, and any other electronic
> part.
>
> Here is a link to GM's instructions, I haven't found any online for
> Jeeps:
> http://service.gm.com/techlineinfo/radio.html
>
> Mike
> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> 88 Cherokee 235 BFG AT's
> Canadian Off Road Trips Photos: Non members can still view!
> Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
> (More Off Road album links at bottom of the view page)
>
> K7AAY wrote:
>>
>> With a Yaesu VX-5 powered from a Radio Shack car cord attached to the
>> console cigar lighter socket, I get rapidly repeating noise likened by
>> others to spark plug noise; but, no spark plugs on a diesel. Removing
>> the card cord and transmitting on battery eliminates the problem.
>>
>> I'm about to switch from the VX-5 HT to a Kenwood TM-V7A; how may I
>> avoid this problem when installing the mobile transceiver.
>>
>> Thank you in advance for your on-topic suggestions.
>>
>> 73s & best regards,
>>
>> K7AAY

Re: Liberty CRD Diesel '06: Interference with 2m radio transmissions
 

Well, I have a '99 TJ with a 40 watt police radio wired from the battery.
Noooo problems in 2 years. Automatic, air, GPS etc also.

When I transmit the GPS loses it's location however.

"Mike Romain" <romainm@sympatico.ca> wrote in message
news:457331DE.106C14F1@sympatico.ca...
> If you contact DC, they might send you the booklet on installing a
> transmitter into the vehicle. They get very specific on where the power
> and grounds can be run as well as the antenna wire.
>
> On GM's for instance, you have to have a 10 ga. dedicated fused power
> and ground line to the battery run far away from any vehicle harnesses
> to avoid voiding the vehicle warranty. Transmitters can interfere with
> things like the ABS and transmission modules, like some TJ's will go
> into neutral when the transmitter is keyed up, and any other electronic
> part.
>
> Here is a link to GM's instructions, I haven't found any online for
> Jeeps:
> http://service.gm.com/techlineinfo/radio.html
>
> Mike
> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> 88 Cherokee 235 BFG AT's
> Canadian Off Road Trips Photos: Non members can still view!
> Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
> (More Off Road album links at bottom of the view page)
>
> K7AAY wrote:
>>
>> With a Yaesu VX-5 powered from a Radio Shack car cord attached to the
>> console cigar lighter socket, I get rapidly repeating noise likened by
>> others to spark plug noise; but, no spark plugs on a diesel. Removing
>> the card cord and transmitting on battery eliminates the problem.
>>
>> I'm about to switch from the VX-5 HT to a Kenwood TM-V7A; how may I
>> avoid this problem when installing the mobile transceiver.
>>
>> Thank you in advance for your on-topic suggestions.
>>
>> 73s & best regards,
>>
>> K7AAY

Re: Liberty CRD Diesel '06: Interference with 2m radio transmissions
 

Well, I have a '99 TJ with a 40 watt police radio wired from the battery.
Noooo problems in 2 years. Automatic, air, GPS etc also.

When I transmit the GPS loses it's location however.

"Mike Romain" <romainm@sympatico.ca> wrote in message
news:457331DE.106C14F1@sympatico.ca...
> If you contact DC, they might send you the booklet on installing a
> transmitter into the vehicle. They get very specific on where the power
> and grounds can be run as well as the antenna wire.
>
> On GM's for instance, you have to have a 10 ga. dedicated fused power
> and ground line to the battery run far away from any vehicle harnesses
> to avoid voiding the vehicle warranty. Transmitters can interfere with
> things like the ABS and transmission modules, like some TJ's will go
> into neutral when the transmitter is keyed up, and any other electronic
> part.
>
> Here is a link to GM's instructions, I haven't found any online for
> Jeeps:
> http://service.gm.com/techlineinfo/radio.html
>
> Mike
> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> 88 Cherokee 235 BFG AT's
> Canadian Off Road Trips Photos: Non members can still view!
> Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
> (More Off Road album links at bottom of the view page)
>
> K7AAY wrote:
>>
>> With a Yaesu VX-5 powered from a Radio Shack car cord attached to the
>> console cigar lighter socket, I get rapidly repeating noise likened by
>> others to spark plug noise; but, no spark plugs on a diesel. Removing
>> the card cord and transmitting on battery eliminates the problem.
>>
>> I'm about to switch from the VX-5 HT to a Kenwood TM-V7A; how may I
>> avoid this problem when installing the mobile transceiver.
>>
>> Thank you in advance for your on-topic suggestions.
>>
>> 73s & best regards,
>>
>> K7AAY

Re: Liberty CRD Diesel '06: Interference with 2m radio transmissions
 

a ground from the battery is the best way to eliminate that type of noise

K7AAY wrote:

> With a Yaesu VX-5 powered from a Radio Shack car cord attached to the
> console cigar lighter socket, I get rapidly repeating noise likened by
> others to spark plug noise; but, no spark plugs on a diesel. Removing
> the card cord and transmitting on battery eliminates the problem.
>
> I'm about to switch from the VX-5 HT to a Kenwood TM-V7A; how may I
> avoid this problem when installing the mobile transceiver.
>
> Thank you in advance for your on-topic suggestions.
>
> 73s & best regards,
>
> K7AAY

Re: Liberty CRD Diesel '06: Interference with 2m radio transmissions
 

a ground from the battery is the best way to eliminate that type of noise

K7AAY wrote:

> With a Yaesu VX-5 powered from a Radio Shack car cord attached to the
> console cigar lighter socket, I get rapidly repeating noise likened by
> others to spark plug noise; but, no spark plugs on a diesel. Removing
> the card cord and transmitting on battery eliminates the problem.
>
> I'm about to switch from the VX-5 HT to a Kenwood TM-V7A; how may I
> avoid this problem when installing the mobile transceiver.
>
> Thank you in advance for your on-topic suggestions.
>
> 73s & best regards,
>
> K7AAY

Re: Liberty CRD Diesel '06: Interference with 2m radio transmissions
 

a ground from the battery is the best way to eliminate that type of noise

K7AAY wrote:

> With a Yaesu VX-5 powered from a Radio Shack car cord attached to the
> console cigar lighter socket, I get rapidly repeating noise likened by
> others to spark plug noise; but, no spark plugs on a diesel. Removing
> the card cord and transmitting on battery eliminates the problem.
>
> I'm about to switch from the VX-5 HT to a Kenwood TM-V7A; how may I
> avoid this problem when installing the mobile transceiver.
>
> Thank you in advance for your on-topic suggestions.
>
> 73s & best regards,
>
> K7AAY