Trees cause more lost signal here than anything else. In Die Boord, Dalsig, Mostertsdrift and Krigeville the oaks and pines are old and tall, and a dish that worked in winter can lose its view when the canopy fills out in spring. In Paradyskloof, Brandwacht and Jamestown the issue is the slope and the roof: on some plots the mountain behind the house limits where the dish can sit. We check the line of sight with a signal meter before we drill anything.
Stellenbosch University brings a large student population, and many rent houses around Onder Papegaaiberg, Uniepark, Idas Valley and Cloetesville. Four or five dishes bolted to one gable is a common sight, and each one is another fault waiting to happen. A communal system puts one dish and one set of equipment in one place and gives every room its own feed. We do site visits and written quotes for communal systems within our normal service areas. See communal and business DSTV for how it works.
Farms and wine estates around Devon Valley, Vlottenburg, Lanquedoc and Koelenhof add long cable runs between the main house, the cellar, staff housing and guest cottages. On those jobs we test the signal at the far TV and not just at the dish, because a long run with one poor connector is the usual reason for pixelation. Summer heat and winter rain are hard on cheap connectors, so we use weatherproof compression F-connectors and UV-stable RG6 cable.