A tuneable Ensemble RxTtx
- I wanted to see if I could pack an Ensemble and Si570 Controller into an enclosure which is actually slightle smaller than the one Tom Hoflich sells. Don't ask me why .....I wanted a source of tuneable I and Q signals for another project.Since the Ensemble uses a linear regulator for 12V to 5V and it's low current, that's OK. For 3.3V the Ensemble uses a linear regulator off the USB port 5V and that's OK since the voltage reduction is not that great ....but the Si570 current draw is relatively high at ~80mA. I decided to use a switcher to go from 12V to 3.3V and see what the noise looks like......works fine with no detectable (extra) generated signal noise. Installing it all in the small box is somewhat of a challenge but doable.Lots of small strips of double sided tape to hold things.So now I have a tuneable 40m/30m/20m Ensemble ....it also has the 40m LPF but I haven't connected it up yet. I can use the I/Q output and drive Rocky anywhere in that frequency range. Listened to a few PSK signals, etc. The audio is not too good on this little ASUS netbook but for that I blame the audio driver code.73 Kees K5BCQ
---------- Original Message ----------
From: "richard.lawn@..." <rjlawn@...>
Subject: [softrock40] Re: Sudden 40m Problem with Ensemble RXTX
Date: Sun, 07 Apr 2013 11:54:48 -0000
I saw Tony's reply to another user so I tried that, but when I unchecked ABPF I lost everything, no receive on any band. Sort of makes me made as everything worked fine and I was even making dx contact on PSK31 using my Mac running Win7. Then I bought th HP laptop :). Should have left well enough alone. Ill eventually sort it out.
--- In email@example.com, "Alan" <alan4alan@...> wrote:
> -----Original Message-----
> Subject: [softrock40] Sudden 40m Problem with Ensemble RXTX
> >, the 40m band is dead or at least deaf here. Did I screw up some
> >calibration when trying to get the Ensemble to work with the new windows
> >laptop? And by the way I checked calibration at 10.000 WWV on the MacBook
> >Pro just to make sure and it was still dead on.....so why is 40m suddenly
> This seems like what Tony reminded us of recently.
> If the ABPF is enabled in CFGSR then 40m goes to TX mode.
> I've never known it to revert once it has been set but it must be the first
> thing to look at.
> 73 Alan G4ZFQ