Hi,
We have just taken our Narco 810 out of our Cessna and replaced it on a temporary basis with a Narco 120 having suffered from distosion problems - we suspect the reason is that the digital tuning on the 810 was too 'exact' - often ATSUs may transmit slightly off the published frequency. The analogue tuner on the 120 seems to have got around this and we now have crystal clear R/T at all times
