| Author |
Message |
    
Anonymous
| | Posted on Saturday, July 21, 2001 - 10:45 am: | 
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boomer 600 creates a high swr what can be done |
vernonott
| | Posted on Saturday, July 21, 2001 - 1:35 pm: |
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Try changing jumper lengths. |
HONKY TONK MAN 593 OUTTA NORTH CAROLINA
| | Posted on Saturday, July 21, 2001 - 9:16 pm: |
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TRY GROUNDING IT DIFFERENT AND DEFINATLY TRY A 6-9 FOOT JUMPER. didnt know caps were on sorry. that jumper should be between the radio and amp. try lowering the wattage into the linear from the radio. hey good luck |
heavy
| | Posted on Wednesday, August 01, 2001 - 2:34 am: |
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you need a good ground system. drive 6 ground rods into the ground to form a circle with a 11 foot radius. then drive a seventh on in the center. connect all the ground rods together with wire, around the outside of the circle and then from the center out. Then connect a wire from your radio and amp chasie to the center ground rod. if your rig causes rfi on you tv and computer then you probaly have a bad earth ground.
It may also be something as simple as a bad piece of coax cable. |
vernonott
| | Posted on Wednesday, August 01, 2001 - 8:15 pm: |
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I had assumed that this boomer 600 was in a mobile setup.Maybe not. |
025
| | Posted on Thursday, August 09, 2001 - 12:14 pm: |
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The bias current is to high. Take out large diodes that are in series with wire wound resistors. Install 1.5 ohm 1/2 watt resistors in place of diodes. The diodes are suppose to reduce bias current when temp goes up but they are not connected to heat sink to monitor heat. With diodes in place bias current is around .7 amps and it should be .4 to .5 amps. This fix will cure the instability of the amp |
-=PEAK=-
| | Posted on Monday, November 05, 2001 - 8:12 pm: |
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If the SWR you are refering to is measured at the output of the amp then what is happening is the output is full of harmonics, this is common with these amps |
Bigbob
| | Posted on Monday, December 31, 2001 - 10:20 pm: |
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PEAK,all trancievers produce unwanted harmonics but,they are supressed to acceptable levels.When the whole signal is amplified 10db so are the harmonics thus for a clean signal you should always use a lowpass filter to bring those nasty things under control. |
Bigbob
| | Posted on Monday, December 31, 2001 - 6:14 pm: |
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I am assuming you readjusted meter for the increased wattage?Quarter wave whips are near 1.4 to 1 swr measured at the base of the antenna.Always run a multiple of a half wave of coax eg.RG58,RG213 approx.12 feet per,all foam coax 13.5 feet per.An antenna tuner is out unless you want throw your girlfreind off the front seat to make room for it,ha,ha.An automaticaly adjusting digital power/swr meter capable of at least 1000 watts dead key might also help. |
Weakeststation
| | Posted on Wednesday, July 31, 2002 - 7:30 pm: |
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use a meter in between radio and amp and then again after amp.... if need be re-tune antenna and as above, make sure you R grounded and use the thick wire not the cheap thin stuff..
Easier said than done but it works..... |
Bigbob
| | Posted on Wednesday, July 31, 2002 - 10:41 pm: |
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Get a decent stinking antenna,too. oh and make sure your car isn't plastic,you need a good counter-poise.of course a 8 gauge wire 9feet long will suffice. |
