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Rubens, Look at the website: http://www.wb5rvz.org/ You will find instructions for many of the Softrock kits. Gary W9TD

Shirley My question is do they all? The ones I tested did not seem to have a problem like Leif's video shows. 73 Alan G4ZFQ

Shirley, that is great info. Thanks for taking the time to compile and post that. PowerSDR for the Softrock RXTX transmits at 10 (or maybe it is 11) KHz offset, which eliminates the noise always

Many sound cards produce a lot of ultrasonic noise. It's caused by the use of noise shaping in the converters; that's a technique that reduces noise in the audible spectrum at the expense of creating

Hello Alan, IDK about more recent soundcards. I did change mine from the Focusrite tested in the pdf to a Creative XFi, but I no longer have access to the spectrum analyzer that I borrowed for the

Here: http://www.wb5rvz.org/ensemble_rxtx/index?projectId=14

It's here: http://www.wb5rvz.org/ 73, Zack W9SZ wrote:

All, I have two old Tony Parks RXTX ensemble kits, KB9YIG, I would like to assemble them. Someone could tell me where I will find instructions for assemblies, tests and calibrations,

Roger & Alan: Thanks for the confirmation. I will mod it. Howard

Roger, I had forgotten that. I had made Leif's simple "mod" using my D44s at full output and attenuators. I have recently changed things with a new computer. Only room for one internal card and no

Howard, you are not missing something. See https://qsl.net/ve7vv/Files/RXTX TX op amp filter mod.pdf <https://qsl.net/ve7vv/Files/RXTX%20TX%20op%20amp%20filter%20mod.pdf> This shows spectrum analyzer

The 150 kHz bandwidth would allow viewing a panadapter bandwidth of 300kHz if the audio card could sample at 150ks/s. The actual bandwidth is less, but people routinely use 96ks/s audio cards to see a

I looked more closely at the transmit spectrum, and I see significant energy +/- 50 KHz from the carrier. This seems to be coming out of my sound card. Of course, for audio, one would never hear this,

For clarification purposes... When I said Cost is an issue, it is not a statement that I am looking for a freebie... It simply means that I need one at the lowest cost possible... I hope this

Alan: I forgot to mention that in receive, I need to swap I and Q for 40 meters and not 20 meters. I will be working on my boat today, and will probably not do anything with this rig until

Howard I still do not know what model you have. A v6.3 is probably over 10 years old. An Ensemble is current as you described, integrated USB, built for a limited number of bands. I'm not sure but

Alan: I am trying to get SSB working. I now have Xmit working, thanks for your help. I have a v6.3. I thought I had to check one of the items in the box, so it didn't work. I guess I was thinking too

Howard, Just exactly what do you want to do? Normally you do not need any, just enable TX. OK so it is NOT a v6.3 like shown on the link I sent. It does not help if you do not follow

The Softrock RXTX might not be the latest innovation in ham radio but, I am glad Tony sent me a brand new 40-30-20m card. I had already a 15-12-10m card so I swapped between the two during the WWDXSSB

Alan: Under Tx support I get the following choices: Omni rig 1 Omni rig 2 Cat do HDSR HRD Which one should I use? I tried all to no avail. I have RXTX Ensemble it has no modules. Filters are hard