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Message |
    
Nickybots110
New member
Username: Nickybots110
Post Number: 2
Registered: 1-2007
| | Posted on Sunday, November 04, 2007 - 10:05 pm: | 
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I just picked up a texas star 667 (non variable). I have it in my truck with my ss-158. I have the wattage turned down to 4watts but I'm getting down swing with the amp on. The strange part is I was running a texas star 350 (non variabe) before with no problems. I'm lost as to what the problem is. Could I be overdriving the amp or could I be not getting enough juice to the amp. Any help would be great. |
Nickybots110
New member
Username: Nickybots110
Post Number: 3
Registered: 1-2007
| | Posted on Monday, November 05, 2007 - 10:19 am: |
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I forgot to mention that even with my 148 that only keys up at 2watts and swings to 12 the 667 was still doing the same thing. Any help would be great. |
Im4jc
Intermediate Member
Username: Im4jc
Post Number: 241
Registered: 11-2005
| | Posted on Monday, November 05, 2007 - 12:44 pm: |
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I'm sure it's unrelated to your backward swing, but just an FYI: 4 watts deadkey is way too much for the 667. Forget the manufacturer's specs, it likes 2 watts or less. Mine runs best at 1.75 watts. |
Hotwire
Senior Member
Username: Hotwire
Post Number: 2432
Registered: 1-2005
| | Posted on Monday, November 05, 2007 - 1:23 pm: |
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I would definatley check the antennas SWR. Also are you using a good antenna? I'm going to assume your talking about the meter on the amp showing the backswing. Is the radios meter showing forward swing?
Those meters on the Texas Star amps get on my nerves and I wish they was not even there. Use a peak reading watt meter instead.
You might try this and it has worked for me in the past. Play around with different jumper lengths. The amp meter will change when you change jumper lengths. SWR will stay the same but the meter reading will be more accuarte.
You need at least a 100 amp alternator and good battery. 8 gauge power wire for a short run will work 6 gauge is choice. When you key the amp up and you hear the pull on the engine and see your interior lights dimm you know that bad boy is putting out some watts! Keep her cool!
good luck
KEEP IT REAL!
Kenny
cef491(27.115lsb)
2sf491(27.555usb)
Indiana
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Nickybots110
New member
Username: Nickybots110
Post Number: 5
Registered: 1-2007
| | Posted on Monday, November 05, 2007 - 8:37 pm: |
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I'm using a wilson 5000 magnet mount. My swr is a 1.5 with the box on. Using a friends dosy meter. The down swing I see is on the amps meter. I know its true because the lights on the meter and the power switch get brighter as I talk. I have everything in a 99 Tahoe so it should have at least a 100amp alt. With a optima yellow top battery. If 4watts into it is to much then I don't know what to do the 158 won't go lower. But using my 148 that is set at 1 watt the box still did the same. |
Tech808
Moderator
Username: Tech808
Post Number: 14622
Registered: 8-2002
| | Posted on Monday, November 05, 2007 - 11:44 pm: |
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Nickybots110,
4 watts is not too much.
Texas Star rates the input power for the EX667 (Non Variable) at 4 or 20 watts.
4 watts input rated for 500W output
20 watts input rated for 650W/58A
Your Texas Star 350 only pulled 30A
Depending on what else you have on in your vehicle ie: radio/heater/wipers/lights etc, you may need to install a new belt and an Underdrive (Smaller) altenator pully and/or extra battery.
CLICK HERE >Texas Star Specifications
Lon ~ Tech808 ~ N9CEF
CEF#808 ~ CEF HAM#001 ~ CVC#002
Tech808@copperelectronics.com
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Nickybots110
New member
Username: Nickybots110
Post Number: 6
Registered: 1-2007
| | Posted on Tuesday, November 06, 2007 - 6:36 am: |
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Thanks alot. I have a place by me that sells performance parts I'll go today and see what they want for the pulley. Hopefully it works |
Hotwire
Senior Member
Username: Hotwire
Post Number: 2437
Registered: 1-2005
| | Posted on Sunday, November 11, 2007 - 3:47 pm: |
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The lights get brighter as you talk??? Wow I don't think I have ever seen that before. You may have a dead short in the coax somewhere. Check the connectors for damage. Look for sharp kinks like when coax gets pinched in a door, loose shield or worn coax jacket and most of all try another antenna. Whatever the problem it sounds serious and I would not key the radio anymore than I had to to check things. Best thing is to start all over from the beginning with fresh coax and an antenna you know for fact is in perfect working condition!
KEEP IT REAL!
Kenny
cef491(27.115lsb)
2sf491(27.555usb)
Indiana
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Hotwire
Senior Member
Username: Hotwire
Post Number: 2438
Registered: 1-2005
| | Posted on Sunday, November 11, 2007 - 3:52 pm: |
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Forgot to mention one more thing I just happened to notice in your first post. You say that the same system worked fine with the Texas Star 350 before you replaced it with a Texas Star 667? Man I'm no expert but it sounds like you need to send the 667 back where you bought it for a refund or exchange!
KEEP IT REAL!
Kenny
cef491(27.115lsb)
2sf491(27.555usb)
Indiana
|
Nickybots110
New member
Username: Nickybots110
Post Number: 7
Registered: 1-2007
| | Posted on Wednesday, November 14, 2007 - 9:26 pm: |
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Well I found out the problem was to much of a voltage drop. I would have 13.7-8 volts and when I keyed up it dropped down to 11 volts. I ran #4 gauge wire from the battery to the amp and now its fine. Dead keys at 475 and swings to just about 700. I guess the #8 gauge I was using was either to small or there might be a break in the wire somewhere. Thanks for all the help. |
Hotwire
Senior Member
Username: Hotwire
Post Number: 2443
Registered: 1-2005
| | Posted on Saturday, November 17, 2007 - 2:02 pm: |
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Dead keys 475 WATTS?
KEEP IT REAL!
Kenny
cef491(27.115lsb)
2sf491(27.555usb)
Indiana
|
Nickybots110
New member
Username: Nickybots110
Post Number: 8
Registered: 1-2007
| | Posted on Sunday, November 18, 2007 - 9:20 am: |
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Thats what I said. I checked it with my meter and a friends. Unfortunaly there both dosy's but thats what I'm getting. On high of course. Thats with 4 watts in dead key and swings to 30 watts |
