I currently use a baby monitor from when the kids were young to monitor my FT-920/950 from other parts of the house but it can be frustrating when the station QRT's and I have to go back into the shack and find a new active frequency. I thought about remote control with an iPad or smart phone but I think that's an expensive option. I have a portable but it doesn't do SSB so I'm wondering which Tecsun/Sangean/Grundig/etc SWL portable works best for SSB that doesn't drift and can tune as close to zero beat as possible? I would think the ones with selectable sideband are better and have better selectivity. So far I've looked at the PL-660 which the reviews says works well on SSB. Others I've looked at are the PL-880, ATS-909X.
I have never used the newer ATS909X, but I have a DX398 (Radio Shack's version of the ATS909X's predecessor the ATS909), and it is an excellent SSB receiver -- independent USB / LSB, great sensitivity and selectivity, and have never noticed any drift on it. I think the 909X has a DSP chip added to it.