Is there a list somewhere on their website that makes this clear? Looking to add an RF remote to replace my MX-500. Would prefer PC programming but not necessarily a must. Looks like the new 780 has this, but am trying to stay below $200 and can't figure out what other units come with it. I thought the RF-40 was the consumer model of the 780, but it appears it doesn't have RF unless I missed it in the specs?