[Premium-Rx] Re: Problem with RA6790/GM

[lcval1 at netcon.net.au]

Folks 

Thank you for the tips so far. I should have mentioned that the unit has 5 
filters, from 400Hz to 16KHz including a 3.24KHz which is in position FL1. 

The unit is flakey, sometimes one or more of the filters pass the BITE test 
which results in SSB working to a degree. On a couple of occasions when a 
fault showed on FL1 the unit worked on LSB but not USB. Also some of the 
filter BW detected by the BITE test were wide of the mark eg. detected as 
1.2KHz but actually a 6.8KHz filter. I’m aware that the BITE test does a 
timing sweep of each filter. 

The unit might not have been powered up for quite a while, so I’m giving it 
a soak test. The seller has said he’s happy to exchange it as he has another 
two, so hopefully one way or the other I’ll end up with a nice working unit. 

> -----Original Message-----
> From: Damien Vale [mailto:lcval1 at netcon.net.au]
> Sent: Wednesday, May 05, 2004 4:15 AM
> To: premium-rx at ml.skirrow.org
> Subject: [Premium-Rx] Problem with RA6790/GM 
> 
> 
> Hi all, 
> 
> I have a RA6790/GM I've purchased, but the seller has said it can be 
> returned if found to be faulty. 
> 
> Initially I found it would only operate on AM, and also no bandwidths could 
> be selected.  Running the BITE test I get faults 31 to 35 inclusive, 
> indicating there is a problem with the filters. I've pulled each one out 
> and cleaned the contacts and sockets, and also inserted & pulled each 
> filter a few times so the friction helps to clean them also. However the 
> faults persist. 
> 
> Any suggestions as to a known problem, or is it one to return? 
> 
> Damien VK3RX 
> 
> 
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