[Milsurplus] RAK/RAL Muting

Kenneth G. Gordon kgordon2006 at frontier.com
Wed Mar 30 23:40:32 EDT 2016


On 30 Mar 2016 at 20:43, William Props wrote:

> 
> Hi Ken,
> 
> I was trying this on 160M with just 100W. I was hoping to monitor my sending on
> the receiver, but the oscillator seems to lock onto the transmit freq like
> typically happens with an overloaded regen. It instantly recovers. I've tried
> setting the regeneration both right at the edge of oscillation and way beyond
> that. No change. I've replaced a leaky mica, and a handfull of resistors. All of
> the oil filled caps are original. I'm using the original power supply and cable.
> There are a few holes in the back of the cabinet I could try sealing up.

Boy, Chris, I don't think that will help.

Now you have me very confused: after all, it has been at least 45 years since 
I used the RAL-7 for traffic handling, and now I cannot recall how I did it.

I am going to have to get an RAL-7 restored (I have at least 6 RALs here) 
and in operation here before I can answer your question adequately.

I am very sorry, and I apologize.

I do know that I had some form of sidetone: I MUST hear my own sending.

After thinking about it, I may have been using a foot-switch and a relay which 
disconnected the antenna from the receiver. I KNOW I used separate tx/rx 
antennas and a TechRad T-350-XM transmitter (pair of 813s) with an RBB 
and an RBC, but now I don't remember if I ever did that with the RAL.

BTW, the T-350-XM was a BEAUTIFUL transmitter. I really wish I still had it. 
I got it brand-new still in the crate from AFMARS with all its accessories.

Ken W7EKB


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