A Little Bit on Remote Tech

I love the Remote Tech (RT) mod.  It adds a challenge to satellite design and it makes it much more difficult to just throw out probes for science.  In RT, you will need a link to Kerbal Space Command (KSC).  If you do not have one, your probe will become unresponsive.  If you can't re-establish a connection to KSC, your probe just became a multi-million Kerbit monolith floating in space.  The good thing is that it is relatively easy to make that KSC connection.  You do not need to be directly connected to KSC.  You can have your link run through as many satellites you want in your relay.  You can technically set up a probe on Duna that links directly back to KSC and to a probe orbiting Kerbal (if you have 2 long range dishes).  You just have to make sure that the probe at Duna is in line with KSC.  The only things that limit you are range and line of site.  The omni-directional (equally effective in any direction) and the directional-dishes (working on line of site).  

The antenna each have their own max range (measured in meters).  

• km = 1,000 meters - MechJeb will put you in a 150km orbit by default 
• Mm = 1,000,000 meters - Geosynchronous orbit around  2.8Mm 
• Gm = 1,000,000,000 meters

Here are the distances (from Kerbin) of the major bodies (at closest approach).  Some orbits are elliptical.  Make sure you pick an antenna that will reach.  You may need to piggyback off of other celestial arrays to get back to KSC.  At that point, you would only have limited connectivity.  You would have to time your burns so that they would be done AND completed while in contact with KSC.  If not, you will lose control and possibly forfeit the mission and the satellite.

• Mun - 12,000,000m (or 12Mm or 1.2Gm)
• Minmus - 47,000,000m (or 47Mm or 4.7Gm)
• Moho - 4,210,510,628 (or just over 4Gm)
• Eve - 9,734,357,701m (or ~10Gm)
• Duna - 19,699,121,365m (or ~20Gm)
• Dres - 34,917,642,884m (or ~35Gm)
• Jool - 65,334,882,253m (or ~66Gm)
• Eeloo - 66,687,926,800m (or ~67Gm)

You can find the manual on the RemoteTech forum page which will link to the Spaceport for download.  If you want a challenge (especially in career mode), this is the mod to do it with and as always, fly safe-ish.