Weatherproofing
The manual shows in Figure 2-18, using electrical tape to weatherproof the joint between the coax cable and the feedcone. There are two problems with this illustration. (1) It is a very much better idea to use COAX-SEAL (Radio Shack: 278-1645) instead of electrical tape. (2) the COAX-SEAL should be applied all the way to the feedcone body, it should not stop at the back of the connector nut as shown in the figure. After decades the COAX_SEAL can still be removed enough to disconnect the coax and it will look like new, it's really a great product!
I have just learned of another product and it's Silicon grease. Radio Shack: 64-2326 "Lube Gel". My local auto parts store has "Dielectric Silicone Compound, for electronic ignitions" Napa p/n 765-1190, but it costs 4 times more. This idea with these is that you squirt some into the cavity of the connector then mate the connectors. The Silicon fills up the air space and prevents and water from getting into the joint. The dielectric constantof the plastics used in connectors is around 2 or 3. Water has a dielectric constant of about 60, which can cause a lot of problems.