Refurbished dx 959 from galaxy no modulation? no transmitt?
Just out of the box refurbished galaxy dx 959, installed in my truck, good antenna tune (below 1:2 swr) recieves great, but has no transmitt or modulation.
Re: refurbished dx 959 from galaxy no modulation? no...
If there is no transmit at all, it sounds like it wasn't fully refurbished. If it is just low modulation then just turn VR16 and VR14 all the way to the left.
If its not working at all, send it back. It hasn't been refurbished.
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Find a schematic, watt meter & proper tuning tools first. Now tune or peak the SWR on the coax & antenna used by the radio. The SWR function in the radio may do. When adjusting do so VERY SLOW and only in the RF power out circuit. NO! You don't need a FCC license to do this. May the force be with you.
vr 14 is high vr 18 is low vr 16 is fine tune it. but there is a procedure to it so you will need the manual. go to www.cbtricks.com in the left column you will see radios , schematics , manuals.,click on it find g then click the go to galaxy dx and look at the list til you find dx-959 open it up and you will be in your glory. good luck.
follow the audio wire. to the variable resistor on that line. for your
modulation. for TX go backwards from the rf transistors to see if there
is one for rf power actually would be a voltage increase/decrease to
the bias. and collectors. thats how to trace any radio for the tune up
adjustments. the others would be for ssb or rx tx meter and squelch
etc... just follow them thru the circuit ... all this can be done by a
radio shop for less than $10 remember not to let or yourself cut out any
of the circuit that will cause overmodulation. and its just wasted.
looks good on a wattmeter but not on a oscilloscope .. and other on
adjacent channels.. lol..
If your talking at least 2 then it sounds like it is the antenna. Any antenna should talk 10-12 miles on a good day, no matter what radio you're using. So I'd get a second look at that system.
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