@grey asked if I could share my impressions of the Evaton AModulator over in the Show Us Your Modular System thread and I figured it makes the most sense to put it here in case other folks are looking for thoughts on it.
I have mixed feelings about it so far. It does and sounds like what you’d expect it to for the most part, but it has some frustrating behavior.
It really does sound like your audio is coming from a distant radio station, but in order for that to happen, you need to have a way to hold your antenna in a precise space where the Nomad will pick it up correctly, and you have to be very careful where your body and hands are. It seems to want your hands to be floating a few inches from the faceplate for the signal to be discernible but not too high fidelity. If you touch the faceplate, the signal improves in quality to the point where it sounds like the broadcast is much closer, almost no RF noise comes through, and the audio is just a bit distorted. You can also get it to do this by laying the Nomad’s antenna across the AModulator faceplate. The more you increase the AModulator’s broadcast gain and the Nomad’s RF gain, the more intense the distortion will become and it sounds pretty cool.
This leads to an issue with the frequency shifting behavior though. If you touch the faceplate with your hand or antenna, frequency shifting doesn’t work anymore. Instead, the second you nudge the Nomad’s tuning, the audio signal is replaced by a very obnoxious sounding carrier wave. I would have liked to be able to get frequency shifts to occur when the audio is clearer, but it is only audible when you have your hands and antenna away from the faceplate, and the signal is harder to hear among the noise.
And my biggest gripe of all is with the Nomad’s tuning. It will constantly drift downward for about an hour and a half before it becomes stable enough to hold a frequency. So if you plan to use it to transmit audio that’s more than a few seconds in length, you’ll have to turn on your system long before you plan to work. This is a huge problem for me since I have limited hours I can actually work on music during the day and now I’ll have to factor this lead time into any session that I want to put the AModulator to use.
I think I’m going to keep it and use it, but it’s not going to completely replace the other methods of simulating radio broadcasts I’ve been using–it just isn’t reliable and flexible enough. One thing I’m very curious about is seeing how my proper shortwave receiver picks up the AModulator’s signal, but it’s out of commission at the moment. If that sounds good, I’ll just take the Nomad out of the equation and record things through a proper radio since all my issues really come down to the Nomad rather than the AModulator.
Also, it’s really fun to put the AModulator/Nomad in a delay feedback loop. You get degradation from the RF noise and the general signal loss and frequency drift, and it’s just cool that your feedback loop is traveling through the air by radio waves at one point in your chain!
EDIT: Got my shortwave receiver working and it does an excellent job of picking up the AModulator’s signal once you get the antenna within a couple inches of its faceplate. Sounds great and has no drift so that will definitely be my method for simulating radio broadcasts going forward.