[Premium-Rx] Audio connections Harris RF-590A/R-2368

[Peter Gottlieb]

I sent you the manual scans of the interface pages directly as they don't go 
through lists very well.

I paid too much for my 590A many years ago.  I've not seen that many true 590A's 
for sale.  Oddly, I've seen some R-2368's which seemed internally more like the 
590 than the 590A.  The 590A is still current production IIRC.

There are a couple of mods which can help: one is a bypass mod for the 
preselector which most receivers have.  If you have more need to receive weak 
signals and less to have the ultimate selectivity against out of band signals 
you will want to bypass the preselector.  You can do that permanently by 
rearranging cables inside or you can mod the preselector to look at the Noise 
Blanker enable signal which passes through it and use that to force a bypass.  
Most receivers do not have the NB installed.  I wrote up this mod some years ago 
but don't have it handy, although I've heard from people who found it on the web 
and implemented it successfully.

The AGC, especially on slow, can have an annoying sound.  Harris explained to me 
that the receiver was designed for data modes as a system component and 
listening quality was secondary.  I found a particular resistor to change and 
make it sound tons better.  You need to change it in tow places as the AGC is 
separate for USB and LSB.  Try it first, if you don't mind it, leave it as it 
is.  My change made it sound more "analog."

Peter


On 12/26/2013 4:42 PM, Mac wrote:
> Readers, for the moment i have misplaced my Harris R-2368 manual, but what i 
> would like please is help in identifying one of what i recall as several AUDIO 
> output points on the 25 pin D or the 37 pin D connector on the back of this 
> receiver. My memory is at the least a 600 ohm and i think either a 4 or 8 ohm 
> output is also available on the connectors.
>
> And what do we think the buying price is for this receiver, presently this 
> receiver is not mine but only for evaluation, while goodness knows i don't 
> need this or any other additional receivers,  when has that ever been the 
> determining factor, this receiver is from a friend so my pricing needs to be 
> objective, i do think he set me up for this,  knowing my fondness for 
> receivers like this ..
>
> Thank you in advance please ...
> warm regards:  mac/mc  W5Merry Christmas
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