I have a Behringer UMC222 usb interface which sells for about $30. It works well with any computer. It is stereo in and 2 chan out on USB. It is 16 bit and samples at e.g. 44k or 48 K. It is much more portable than a fancier Behringer interface. It is good enough that I can use it with a softrock RXII for nuclear magnetic resonance and not just ham radio. You will probably need a stereo 3 mm to RCA adapter cable.
David
K0IMH
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-----Original Message-----
From: <
[email protected]>
Sent: Aug 2, 2023 11:31 PM
To: <
[email protected]>
Subject: Re: [softrock40] Getting started
On 1/8/23 17:13, Shirley Dulcey KE1L wrote:
It's best to turn off mic bias if you can. But it won't actually matter to
the Softrock because it has blocking capacitors on its I/Q outputs, so that
bias won't reach the rest of the circuit.
So... why bother?
If you use a fancy interface with
phantom voltage support, turn that off; it's a much higher voltage,
nominally 48V, that could cause issues.
Sure. This is comparable to Power-over-Ethernet, which a friend learned the expensive way when connecting a cable tracing aid to a socket which had a PoE-enabled switch behind it.
- Roland 9V1RT
