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How big of a linear can a semi run without creating a proble

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night owl
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How big of a linear can a semi run without creating a proble

Post by night owl » Friday, 17 June 2011, 20:02 PM

I like texas star, and am open to others. I just do not need to create a problem. Power drain or computer problem ect. Linear will be run with proper power cables and fuse.


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maters
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Re: How big of a linear can a semi run without creating a pr

Post by maters » Sunday, 26 June 2011, 21:15 PM

A sweet 16 connected to a CLEAN radio is fine.

A 29/33/general lee and add your favorite , clipped diodes and peaked will make any electronics suffer.

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Re: How big of a linear can a semi run without creating a pr

Post by busdriver389 » Thursday, 21 July 2011, 19:31 PM

I ran a 2X8 in mine with no problems. Be careful with texas stars they are amp hogs.
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Re: How big of a linear can a semi run without creating a pr

Post by 352 Smiley » Tuesday, 23 August 2011, 5:12 AM

i whould use a 1by4 max to play it safe
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Re: How big of a linear can a semi run without creating a pr

Post by jessejamesdallas » Tuesday, 23 August 2011, 16:53 PM

Depends on how deep your pockets are, and how well it's installed...I know guys that run 16-24 pill Amps in Big Trucks with no problems, and I know guys that have shut their motors down with 2-pill box's...
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Re: How big of a linear can a semi run without creating a pr

Post by Big_Mic » Sunday, 03 February 2013, 13:32 PM

Currently running a 2x12 with upgraded alternator in a 2012 Freightliner Cascadia at 3,000 watts output... do it all day long... careful antenna installation and choice of coax are 2 areas too concentrate on.... LMR 400 I use for everything... And antenna is mounted off the back behind cab...
Stryker 497HPC/Texas Star Sweet 16/K-40 Coily Antenna's
Yaesu FT 101EE/Alpha (2) 4CX1000's/8 Element beam Flat Side
8 Antenna's in all covering 160-2 Meter

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Re: How big of a linear can a semi run without creating a pr

Post by RustyFinger » Saturday, 16 February 2013, 15:03 PM

Big_Mic wrote:Currently running a 2x12 with upgraded alternator in a 2012 Freightliner Cascadia at 3,000 watts output... do it all day long... careful antenna installation and choice of coax are 2 areas too concentrate on.... LMR 400 I use for everything... And antenna is mounted off the back behind cab...
How did you run your coax into yhe cab thank you Rusty

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Re: How big of a linear can a semi run without creating a pr

Post by Big_Mic » Saturday, 16 February 2013, 15:09 PM

Drilled hole behind cab up underneath and brought it on to bunk.. used caulk after running coax to seal around the area where the coax was run through... in all I drilled 4 holes... 1 for the coax and 2 for the #2 positive cable and 1 for the #4 negative cable... The battery cable holes were drilled underneath near the battery box ....
Stryker 497HPC/Texas Star Sweet 16/K-40 Coily Antenna's
Yaesu FT 101EE/Alpha (2) 4CX1000's/8 Element beam Flat Side
8 Antenna's in all covering 160-2 Meter

The Pics below give the rest of the story...

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Re: How big of a linear can a semi run without creating a pr

Post by RustyFinger » Saturday, 16 February 2013, 15:12 PM

So coax just runs down the back of the cab.have aready ran power up in the caab mounted annt on my head acke rack.

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Re: How big of a linear can a semi run without creating a pr

Post by Big_Mic » Saturday, 16 February 2013, 15:16 PM

Yes the coax runs down the cab... looped the coax a bit and used a couple zip ties to keep the coax from pullin g on the connector.
Stryker 497HPC/Texas Star Sweet 16/K-40 Coily Antenna's
Yaesu FT 101EE/Alpha (2) 4CX1000's/8 Element beam Flat Side
8 Antenna's in all covering 160-2 Meter

The Pics below give the rest of the story...

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Re: How big of a linear can a semi run without creating a pr

Post by RustyFinger » Saturday, 16 February 2013, 15:17 PM

Big_Mic wrote:Yes the coax runs down the cab... looped the coax a bit and used a couple zip ties to keep the coax from pullin g on the connector.
how long of coax did you use? Rusty

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Re: How big of a linear can a semi run without creating a pr

Post by Big_Mic » Saturday, 16 February 2013, 15:22 PM

Coax if I remember right was about 20 feet... that got it too the bird.. than 6 feet off of that to the amplifier ... than the jumper between radio and amp was about 9 feet... SWR reflected is about 1/2 percent to 1 percent at a full 3000 watts.
Stryker 497HPC/Texas Star Sweet 16/K-40 Coily Antenna's
Yaesu FT 101EE/Alpha (2) 4CX1000's/8 Element beam Flat Side
8 Antenna's in all covering 160-2 Meter

The Pics below give the rest of the story...

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Re: How big of a linear can a semi run without creating a pr

Post by 3ZERO8 » Saturday, 16 February 2013, 15:25 PM

Dang your swr are that low at 3KW??? What antenna are you running?

-3ZERO8 Texas
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Re: How big of a linear can a semi run without creating a pr

Post by RustyFinger » Saturday, 16 February 2013, 15:27 PM

Thank you ,for the info.Rusty

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Re: How big of a linear can a semi run without creating a pr

Post by Big_Mic » Saturday, 16 February 2013, 15:29 PM

Running a K40 Coil antenna and yes it is... Mounting it behind the cab and tilting it back slightly toward the trailer increases the feed point impedance giving me a near perfect match... between a combination of tilting the antenna back and trimming it along with good coax... I was able to achieve this.

Sat Feb 16, 2013 5:32 pm

I've also sealed all connections with a clear sealant so I can use it rain or shine without much change due to weatger
Stryker 497HPC/Texas Star Sweet 16/K-40 Coily Antenna's
Yaesu FT 101EE/Alpha (2) 4CX1000's/8 Element beam Flat Side
8 Antenna's in all covering 160-2 Meter

The Pics below give the rest of the story...

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Re: How big of a linear can a semi run without creating a pr

Post by Pistol_Pete » Friday, 27 September 2013, 19:15 PM

Out of my liege
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Re: How big of a linear can a semi run without creating a pr

Post by MDYoungblood » Saturday, 28 September 2013, 9:17 AM

jessejamesdallas wrote:Depends on how deep your pockets are, and how well it's installed.
This is the best answer on this topic.

3's

Greg

Sat Sep 28, 2013 12:21 pm

It actually pertains to any linear install.

3's
again

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Re: How big of a linear can a semi run without creating a pr

Post by silvereagle1 » Saturday, 28 September 2013, 13:19 PM

Yep, I've ran across a few of those bugs myself in the past few days. All cleared up now I think but i'm finding out you'll find problems in places you never thought to look.
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