| Author |
Message |
    
Jose22
| | Posted on Saturday, January 11, 2003 - 10:11 pm: | 
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Tech brains--- I have new Galaxy 959 and most all i talk to says i sound muffled or off frequency. Any ideals or anyone heard of this problem. How do I correct. Anyone?? Let me know how to fix. I think i have all equipment needed.
Thanks |
Barakuda318
| | Posted on Sunday, January 12, 2003 - 12:45 am: |
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Well I honestly don't know much about how to calibrate the Galaxy's if they are off frequency, but I always say start with the simple things first, try making sure that your swr's are correct and that your microphone is not at fault, also make sure that you have plenty of power pushing the cb radio, and if you have talk back make sure that you have it set properly or that your mic is far enough away from the speaker so that you do not have feedback, If that don't work then I would check with someone about re calibrating the frequencies. |
Jose22
| | Posted on Sunday, January 12, 2003 - 3:27 pm: |
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Thanks, tried different mikes, power straight to battery, swr 1.3, turned talkback off, tried turning power, mic gain, etc down. no controls on radio helps. Keep thinking guys,
Thanks |
2600
| | Posted on Monday, January 13, 2003 - 12:32 am: |
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Well Jose, if "all the equipment" you need includes a frequency counter, that's a really good place to start. If it's a counter that is ACCURATE, that's even better. Are we talking about AM transmit ONLY here, or does it sound off frequency on SSB only, and then 'muffled' on AM? That could be two separate problems, if that's the picture.
Seriously, put the frequency counter in line, turn down the mike gain, and key the radio on AM. If you get a steady reading that is wrong, it's a place to start. If it reads no more 5 tenths of a kHz too high or low, the problem is in the audio, not the frequency. Distorted audio CAN sound like an off-frequency radio at the other end, even if your AM carrier is tuned right on the money. The 959 is made with the front-panel fine tune control wired to the receiver ONLY. The SSB transmit frequency is set by an internal trimmer control. Locking both the transmit and receiver frequency together on the fine tune knob is a popular mod for sideband users. It lets each operator 'line up' their transmit sides all on (about) the same frequency. Otherwise you would have to reach over and clarify your receiver to each different radio when it keyed up. The factory setup puts each radio on a slightly different transmit frequency, determined by how close that internal trimmer pot is set.
73 |
Jose22
| | Posted on Monday, January 13, 2003 - 8:03 pm: |
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Thanks a lot. will check SSB this weekend. Will pull out of truck and set on bench. I think the frequency is on and it may be in audio. Will let you know. |
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