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Message |
    
Rattlesnakejake
Junior Member
Username: Rattlesnakejake
Post Number: 88
Registered: 12-2003
| | Posted on Friday, February 20, 2004 - 8:55 pm: | 
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I just put in the galaxy radio for my dad, and i used a 102" whip on a radioshack spring & ball. I bought the special coax from radio shack with the bare ends scince thats waht the ball wants, and i hear nothing through.; When i key up, swr is deadly bad. in the 3's... HELLLP |
Buck
Advanced Member
Username: Buck
Post Number: 776
Registered: 3-2002
| | Posted on Friday, February 20, 2004 - 9:20 pm: |
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Where did you mount it and how big did you drill the center hole?? The center bolt cant touch anything. Sounds like a bad ground to me
Buck |
Tech808
Moderator
Username: Tech808
Post Number: 1587
Registered: 8-2002
| | Posted on Friday, February 20, 2004 - 9:23 pm: |
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RJ,
You did not say where you mounted it so I will cover a couple of things.
Get a Volt/Ohm Meter and check Coax.
#1 ~ Place one lead on Center Pin of PL259 Connector and other end on Bare center wire of Coax. Reading shold peg meter.
#2 ~ Next place one lead on Outer shell of PL259 connector and other lead on Shield of coax again Readiong should peg meter.
#3 ~ The place one lead on Center Pin and other lead on outer shell of PL 259 and it should be "0" NO Movement of meter.
#4 ~ If this checks out "OK" Then run a Ground wire from the Mounting plate Screw of Ball to Frame of Car/Truck.
ALSO CHECK TO MAKE SURE you do not have any strand's from the Shield shorting out on the ball connector.
Also any Coax will work for this type of installation. The better the grade of Coax the less chance of problem's.
From what you describe it sounds like a Ground or Coax problem.
Hope this helps.
Lon
Tech808 |
Snowfire
Junior Member
Username: Snowfire
Post Number: 12
Registered: 2-2004
| | Posted on Friday, February 20, 2004 - 9:23 pm: |
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i have a galaxy radio in my pickup truck with a 102 and i have 1.2 swr. i've been told that's good for 102. Try a L? bracket mounted to the bed with a regular stud mount connection. The right spring should scrue right into the stud and whip. |
Ca346
Advanced Member
Username: Ca346
Post Number: 593
Registered: 8-2003
| | Posted on Friday, February 20, 2004 - 9:27 pm: |
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Sounds like you've got a short between the center wire and the outside shielding. Check at each connection first to make sure the wires are not touching.
Second place would be the grounding connection for the whip. Check to make sure you have a good ground. Metal to metal. |
Rattlesnakejake
Member
Username: Rattlesnakejake
Post Number: 89
Registered: 12-2003
| | Posted on Friday, February 20, 2004 - 10:01 pm: |
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i think Buck hit it on the head. The bolt is touching the frame of the truck. the center bolt is touching something. |
Rattlesnakejake
Member
Username: Rattlesnakejake
Post Number: 90
Registered: 12-2003
| | Posted on Friday, February 20, 2004 - 10:16 pm: |
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/image{the center bolt must touch the body, buck. ??? explain very clearly lol |
Damyankee
Intermediate Member
Username: Damyankee
Post Number: 163
Registered: 11-2002
| | Posted on Saturday, February 21, 2004 - 2:23 am: |
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The center bolt is what the center lead from your
coax is attached to. It needs to be insulated from EVERYTHING except the antenna. Follow 808's advice then check the antenna mount itself where the antenna threads in for the same ohm readings he gave you for the coax. |
Buck
Advanced Member
Username: Buck
Post Number: 778
Registered: 3-2002
| | Posted on Saturday, February 21, 2004 - 8:40 am: |
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Ok...The center hole that you drill must NOT touch anything but the plastic spacer and the coax. The three outer bolts are what holds the ball mount to the truck. Here is a pic for you to look at. You can print this off ant use it for a template. Just make sure that middle hole is big enough that it dosent touch any part of the truck. I will send you a pic because I cant get it to load.
Buck
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