Deleted
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Post by Deleted on Feb 21, 2009 21:02:35 GMT -5
My friend's Trams D201A receive is repaired (thanks to a couple of pointers from Fixr). Before I gave it back, my friend asked me to align the manual tuning as it was way off. The manual asks to adjust the coil and cap near the manual knob. However, before I did any adjustments, I noticed that the 27.450 adjust was under 1 MHz, where is should be closer to 4.7 MHz. Is this completely screwed?
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Sandbagger
Administrator/The Boss 
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Post by Sandbagger on Feb 21, 2009 22:05:12 GMT -5
My friend's Trams D201A receive is repaired (thanks to a couple of pointers from Fixr). Before I gave it back, my friend asked me to align the manual tuning as it was way off. The manual asks to adjust the coil and cap near the manual knob. However, before I did any adjustments, I noticed that the 27.450 adjust was under 1 MHz, where is should be closer to 4.7 MHz. Is this completely screwed? Do you have any receive with the manual tuner? If so, then I'd be suspect of your frequency reading, as there is no way it would be working at 1 mhz. Setting up the tuning dial is a bit tricky if you want the scale to be linear and track the channels throughout the whole range. You have to set the lower channel (like 2 or 3) with the coil, then go to a higher channel (22) and use the trimmer to set the channel. The you have to go back and forth between the 2 several times until the channels match on both ends, and hopefully all through the middle as well. |
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Deleted
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Post by Deleted on Feb 21, 2009 22:55:19 GMT -5
I cheated. I used the RF sampler at the antenna and set it that way. It was good enough. He'll have to live with it, as I do not think he even uses manual. He just wanted it to match.
The only thing was manual SSB was difficult. I explained to him that just a hair on the dial could change it a couple hundred hertz, making you look way off. Personally, I don't see any use for manual unless you have a freq counter.
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