[ICOM] IC-746PRO

[D C *Mac* Macdonald]

I seriously doubt that ALC should fluctuate when 
you are transmitting a steady carrier.  Are you 
sure that Icom understood that you were not 
talking about ALC display while operating SSB? 
 
73 - Mac, K2GKK/5 
 
 
> Date: Tue, 11 Dec 2007 12:32:10 -0600 
> From: k9ssbgb at gmail.com 
> To: icom at mailman.qth.net 
> Subject: [ICOM] IC-746PRO 
> 
> I'm having a problem with my IC-746PRO. 
> While tuning into a dummy load the power 
> output fluctuates up and down. Some times 
> it goes to full output then drops down to 
> about 50%. Other time it puts out 50% and 
> then jumps up to full output. The ALC bar- 
> graph also fluctuates. It is the same on all 
> bands including 2 meters. 
> 
> I've tried different coax with same results. 
> Also acts the same way into my R7 vertical antenna. 
> 
> I emailed Icom tech support and all they said was the 
> fluctuating ALC meter shows the ALC is working! So that makes 
> me leery of sending the radio in with that response. 
> 
> The radio has had the ubiquitous "No Transmit" repair done 
> by Icom after the first month I owned it. 
> I tried loosening and re-tightening all the screws. 
> Also tried cleaning all the ribbon cables and then 
> it worked fine for a couple weeks then back to the  
> same problem. Any ideas? 
> 
> Thanks, Dick K9SSB