Maximum Frequency Separation for VFOs A & B Using MultiRX?

Moose

In PowerSDR using a FLEX-1500 what is the maximum frequency separation that can exist between VFOs A & B using MultiRX?

Al K0VM

Moose,
  I believe it is about <48khz if using the 48000bps sample rate, 96Khz is using 96kbps.

Al, K0VM

Moose

Thanks. So if I "see" any two SSB signals I should be able to put receive windows on them both? I was trying that last night. Say I was tuned up on a signal in the middle of the panafall screen. I could tune on another that was all the way to the left or the right of the center. But if I tried to tune two that were all the way to the left and right the software would just re-center on the new one. So I would tune VFO A to a signal on the far left and if I selected a signal on the far right with VFO B it would center the panafall on the newly selected signal. I'm assuming it did this because I was beyond whatever the limit was. I tried repeatedly "walking" the second VFO farther and farther away from the other VFO, eventually it would do as I described. Next time on the radio I'll have to check my sampling rate and try to measure what separation this happens at.
73,
Chris AK4SK

Tim - W4TME

A MultiRX "receiver" (VFO-B) only functions within the sampled bandwidth, which for a FLEX-1500 is approximately 48 kHz and no greater.  Now the primary receiver (VFO-A) is always fixed in the center of the spectrum display, so from a visible standpoint, you can only observe VFO-B being tuned approximately +/- 24 kHz from VFO-A's frequency. If you tune VFO-A, which tunes the spectrum display and the MultiRX VFO-B goes beyond the +/- 24 kHz limit, MultiRX will be turned off.

There is no way on the FLEX-1500 to place VFO-A on one side of the display and the MultiRX VFO-B on the other.  To do that, you need a FLEX-6000.

Moose

Thanks Tim, I appreciate the quick reply.
73,
Chris AK4SK