Any idea's what may cause me to totally loose receive on SSB, I see tranmit but can hear anything on LSB???? AM works great no problems at all. Wonder id just a capacitor or something simple???
Any idea's what may cause me to totally loose receive on SSB, I see tranmit but can hear anything on LSB???? AM works great no problems at all. Wonder id just a capacitor or something simple???
RCI-2950DX, 1978 Cobra 148 GTL Taiwan, SHURE526T MIC, Tug-8 With Astatic 10 DA Head, Astatic 575M6, ASTRON 70/20 AMP POWER SUPPLIES, IMAX 2000 W GROUND PLANE KIT. TIMES MICROWAVE LMR-400 COAX, RF CHOKES. DIAMOND SWR/POWER INLINE METER. 250 of Sea Level Under Me. Recent World Radio Member.
seems silly , but ..... is your squelch down and RF gain up ?
Does USB work? With AM/LSB/USB there many things that can go wrong. Check your function on USB receive and transmit. I think all radios are the same in that alignment procedures address AM first and then the SSB. A small adjustment can make a huge difference in receive or not. If you have technical skills and tools the Service manual has the voltages of all of the transistors in the receive and transmit state. A huge help if you are digging around a radio you aren't familiar with.
Full service manual: http://www.cbtricks.com/radios/cobra/148gtl/index.htm
Last edited by Tallman; 07-13-2014 at 05:26 PM.
All answers are opinions and may, or may not be technically correct.
RCI-2950DX, 1978 Cobra 148 GTL Taiwan, SHURE526T MIC, Tug-8 With Astatic 10 DA Head, Astatic 575M6, ASTRON 70/20 AMP POWER SUPPLIES, IMAX 2000 W GROUND PLANE KIT. TIMES MICROWAVE LMR-400 COAX, RF CHOKES. DIAMOND SWR/POWER INLINE METER. 250 of Sea Level Under Me. Recent World Radio Member.
RCI-2950DX, 1978 Cobra 148 GTL Taiwan, SHURE526T MIC, Tug-8 With Astatic 10 DA Head, Astatic 575M6, ASTRON 70/20 AMP POWER SUPPLIES, IMAX 2000 W GROUND PLANE KIT. TIMES MICROWAVE LMR-400 COAX, RF CHOKES. DIAMOND SWR/POWER INLINE METER. 250 of Sea Level Under Me. Recent World Radio Member.
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