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lancelot@slipstream:> fldigi --version fldigi 3.21.75 I built in in December. 73 ... Sid.

At the top of the page is a tab that says "Bands". Click that and select 40M for build instructions for the radio you desire to construct. Kevin

Ordered the "SoftRock Lite II Combined Receiver Kit" from fivedash.com and received it yesterday. Project not starting off well, I am having trouble following the instructions. I'd like to construct a

Hi Ross, What version of fldigi are you using. I've been running it for a while and I have been completely unaware it would work with I-Q radios (SDR). Did I overlook something? Maybe there is a

Thought I'd put in my 2c worth on this one. FLdigi has a OS-X port of it's software suite. You can find it on http://w1hkj.com/Fldigi.html and I do know you can use hamlib to support Softrock radios.

Hi Syd, That’s what I found out too. It looks like Ham Radio and Mac OS X are in parallel universes with very little interaction. So I will keep searching, and playing with it, but use a VM running

Looks that way Jean-Paul, OSX has hardly ever raised its head on SDR. The only ones I have come across is on the opehpsdr forum, JavaSDR for HPSDR and MacSDR (link broken), both for HPSDR/SDR100. SDRX

David Again we miscommunicate. The only measurements for which I use HDSDR are for signal levels, and then only after after calibration against a -73 dBm standard. Any noise readings from HDSDR are

Using the AF FFT in HDSDR is not valid for absolute noise measurements. It's fine for many types of relative measurements. All I was trying to look at was the ability to increase OpAmp gain. It seemed

David (I hope this is not a double post.... I replied but an hour later I don't see it here) I think we have a miscommunication. -130 dBm is the signal level that resulted in a 3 dB S+N/N value as

I selected 2.9Hz as the RBW because it resulted in -130dBm which matches your results and makes things easier to compare for this conversation. I wasn't trying measure absolute values, just trying to

David My Peaberry V2 is 9000 miles away operating as W8TOD by VNC so I cannot duplicate your tests. You mention however that you are using HDSDR for your measurements. You can get some fantastic

Interesting stuff Roger! I think there are improvements that can be made in the op amps. What has led me to put that on hold is the evidence that the overall receiver noise figure, in a lab

I'm getting a couple of odd readings and for the life of me I can't figure out why I'm getting them. I've spent a few days going through all the common problems I run across, bad solder joints being

I ran some tests. Reference signal is on 10m @ -73dBm from an Elecraft XG3. Measurements are from HDSDR with an averaged FFT using RBW of 2.9Hz. The SoftRock is an Ensemble II with an EMU 0204. The

Warren, the new equip. is great! Since I am sure you are eagerly looking for new mods to try the new equip on, here is a suggestion. :) The op amps think they are connected to + and - V supplies and

Thanks John. I know that I can compile and build it on Linux. I have two Linux VMs (Parallels 9 for Desktop), one running Ubuntu 13.04, and another with Debian 7. For me, the real challenge is to

Here is a headline: I am conceding this disagreement to Alan! Through a fortunate but very coincident set of circumstances I acquired a wonderful instrument over the weekend: An Amber 3500 "Distortion

Original Message ----- Subject: [softrock40] Re: RXTX sparking and arcing (still having waveform issues) You are connecting the Softrock "Line In" to the soundcard Line In? Have you gone over all the

Original Message ----- Subject: Re: [softrock40] Re: softrock40 Spice says you will get an extra 6dB up to 10KHz if you leave the capacitors untouched. About 4dB down at 30KHz. My tests suggested