[MRCA] Troubleshooting an RT-524 - K1TEW

[WA5CAB at cs.com]

I have a lot of 8'-0" CX-4722A's for antenna control.  $17.50 plus 
shipping.

I haven't worked on an RT-524 since October, 1968 (guess where).  But the 
first thing that I would do is to confirm that it works on no low band 
frequencies and that it works on all high band frequencies.  Having done that, 
open TM 11-5820-399-35 or TM 11-5820-401-34-2-2 and start trouble shooting.  As 
I doubt that you have all of the special purpose test fixtures, the -35 is 
the best bet.

Robert Downs - Houston
wa5cab dot com (Web Store)
MVPA 9480

In a message dated 10/02/2017 15:34:45 PM Central Daylight Time, 
ttew22 at mail.com writes: 
> I am working on a transmit issue on one of my RT-524.
>   
>  Currently the RT-524 appears to receive in both frequency bands and I 
> have tested this on multiple frequencies.  
>   
>  However when I attempted to transmit on 51.0 there was no outbound 
> transmission = nothing.  The radio does spin up with that whine like she's trying 
> but I heard nothing on my other radios.  I had an additional 524, a 1523 
> and my Flex radio all monitoring the frequency but nothing.  
>   
>  I was about to assume that perhaps someone had really demilled the radio 
> but instead flipped over the radio into the other frequency band at at 
> 74.000 the radio transmitted just fine into a dummy load of-course since that's 
> outside of my HAM frequencies.
>   
>  Having two RT-524's with one being a fully functional I pulled both 
> covers and made sure all modules were in place, no internal cables broken or 
> disconnected and no modules missing.  I could find no internal differences 
> that could account for the lack of transmission in the lower bands so I am 
> left with that I believe is a bad module or internal problem with the radio. 
>   
>  Attached are some pictures of my setup.  
>   
>  The RT-524 is connected up to an antenna with coax but I did not have the 
> antenna control cable in place - I manually placed the antenna base in the 
> proper bands for the frequency in use.
>   
>  Would really appreciate some suggestions on where to continue the 
> troubleshooting.
>   
>  Todd
>  K1TEW
>  ttew22 at mail.com
> 
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