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Message |
    
Sparkomatic
Intermediate Member
Username: Sparkomatic
Post Number: 424
Registered: 10-2002
| | Posted on Wednesday, January 09, 2008 - 7:47 pm: | 
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Truck #1: I have an Xforce 600HD straight 6 pill and an X-80 used as a driver.....that is in my 2008 Chevy Silverado using a Wilson 5000 magnetic mount. SWR....1.1 on 20 and 1.2 on 1 and 40.
Truck #2: 2000 GMC Sierra with a Davemade 4 pill driven by a Davemade M80. Antenna is a Predator 10K on a Davemade roof top puck mount. SWR is flat as a pancake.
So far all appears normal.....jumper lengths are identical in both installations and meters (remote Palstars).
Now if I swap the amps out of one into the other the SWR on the Silverado with the magnet mount is high at certain wattages and flat at others.....mostly bad. The Sierra can run all the amps with flat SWRs.
Are magnet mounts known to be flakey? I have not experimented with jumpers but I would love to know what the heck is going on. |
Hotwire
Senior Member
Username: Hotwire
Post Number: 2451
Registered: 1-2005
| | Posted on Saturday, January 12, 2008 - 2:03 pm: |
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If your output is 1 watt or 1 kilowatt the SWR is going to be the same all the time.
It is possible that the magnet mount and its inferior coax could be the cause of the false meter readings. Especially with the big amp.
So many possible problems. I would start with trying out the Predator and puck mount on the Silverado and see what you get.
KEEP IT REAL!
Kenny
cef491(27.115lsb)
2sf491(27.555usb)
Indiana
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Patzerozero
Senior Member
Username: Patzerozero
Post Number: 4108
Registered: 7-2004
| | Posted on Saturday, January 12, 2008 - 5:46 pm: |
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are you swapping the x80 & m80 also, or just the 4 & 6 pills?
you say you're using 'remote palstars'-wm150r? you mean you see 'high reflect' on the mag mount with the dave box? HOW HIGH? how is the remote unit connected to the 1st amp? i had problems INSIDE the remote unit & needed to replace the wire to the so239. i usually use a double male connector to attach the remote unit to the amp, but have noticed on my big dave setup, it just won't work without 9' or so of 9013. i'd also toss the wilson mag mount....if you MUST run a wilson, get a center loaded trucker antenna & put it on a mount that will allow you to change the coax. i use a triple mag mount with 9013 & can run a LOT without causing rfi to the trucks electronics('99 computer controlled durango). |
Mrclean
Member
Username: Mrclean
Post Number: 87
Registered: 12-2003
| | Posted on Wednesday, January 16, 2008 - 2:39 am: |
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Thats alot of juice for a magmount. |
Patzerozero
Senior Member
Username: Patzerozero
Post Number: 4114
Registered: 7-2004
| | Posted on Friday, January 18, 2008 - 7:22 pm: |
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8 magnets on an older carbureted, non-computer suburban with sufficient current provided produces 3kw+ carrier & 10kw+ PEP from 3x8x32 2879's, & many DC-sky keydown wins & talks DX with the best of 'em.
why magnets with THAT much power? just because...... |
Golden_screw_driver
Junior Member
Username: Golden_screw_driver
Post Number: 12
Registered: 2-2008
| | Posted on Friday, July 11, 2008 - 3:11 pm: |
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Buy a hard mount for the wilson. I have had nothing but headaches with mag mount's(i have tosted more amps with mag mouts) i have two chevy s-10 2000 , 2002 extream wilson hard mout on both , i run a 667v from the 2000 and a mod-v and ts 16 with a 1.1:1 on each of them....lose the mag mount
the golden screw driver on the golden build radio
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Patzerozero
Senior Member
Username: Patzerozero
Post Number: 4332
Registered: 7-2004
| | Posted on Saturday, July 12, 2008 - 7:07 pm: |
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lose the mag mount-i dunno, i get out just fine with my mag mount....and i've never toasted an amp because of one 
even with about 15 watts reflect on a dead key.....that was about .75% (yes, 3/4 of 1%) reflect |
