[Premium-Rx] Need Recommendation for Receiver Control Software

[Danny Higgins]

Good morning Michael.

I think Ed was after a combined remote RX controller as well as the ability
to switch audio paths.  I don't know of anything off-the-shelf which is why
I've spent quite a bit of time building a similar controller for my Racal
RA3702/MA3752/TA3762.  I've had the A model and B model working, and I'm
just finalising the design of the PCBs for the one-off production model.
I'm happy to make the circuit diagrams and PCBs (using the free version of
EagleCad light) available to anyone who wants them as well as the software
when it is complete (PIC using the free MCC18 C compiler), but I will have
limited time for technical queries.

I may bump into you again at Kempton Park next Sunday,

73

Danny, G3XVR

-----Original Message-----
From: premium-rx-bounces at mailman.qth.net
[mailto:premium-rx-bounces at mailman.qth.net] On Behalf Of Michael O'Beirne
Sent: 20 September 2009 09:34
To: Edward Sylvester
Cc: PREMIUM-RX
Subject: Re: [Premium-Rx] Need Recommendation for Receiver Control Software

Hi Edward

Why the need for software?  Why not do things the simple way in hardware 
with two multiway switches, with the rotor of one connected to the LH 
headphone and the rotor of the other to the RH headphone, and connect the 
wafer contacts to the phones output from the receivers.

You should ensure that the speaker and 600 ohm line outputs are properly 
terminated with a resistor of the correct resistance and power rating to 
avoid damage to the amplifiers from an open load, particularly as I suspect 
from your mention of phones that you are not using the speaker.

You can make a neat professional job with a 3.5 inch rack panel/chassis and 
label the switch positions with a paper labelling machine.

An even simpler solution is to connect the stereo jack plug of the phones 
via a simple adaptor to two flying leads each long enough to reach all the 
receivers and to fit a mono jack plug on the end of each.  If one jack plug 
is, say, black and the other yellow, you will know instantly which is the 
LHS and RHS and which receiver you are listening to.

In between the leads you can interpose an output for a recorder or perhaps 
an AF filter for each channel such as the elderly Datong FL3.

Fiddling about with software seems to be an awfully tedious way of achieving

your aim.

73s
Michael
G8MOB




----- Original Message ----- 
From: "Edward Sylvester" <navydude1962 at yahoo.com>
To: <premium-rx at mailman.qth.net>
Sent: Sunday, September 20, 2009 9:12 AM
Subject: [Premium-Rx] Need Recommendation for Receiver Control Software





If you're like me, you have multiple receivers that need to be centrally 
controlled. As of now, I have no software to control my premium receivers.

The ideal software would allow me to listen to one receiver in one ear and 
the next receiver in the other ear, via headphones. This is perfect for 
listening to a country's broadcast on two different frequencies.

Plus, would like to the ability to record and enhance the playback, making 
the signal more intelligible. I have more than two and less than 10 
receivers I want to be able to control. They're on a multicoipler.

Any ideas/advice would be greatly appreciated.

73,
Ed NI6S
Los Angeles



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