by devil » Tue Sep 13, 2005 11:09 am
The size of the dish does not necessarily reflect on its quality. In fact, by the time you talk about 2.5 m and upwards, you could run into severe quality problems. If it is fashioned from thin aluminium without reinforcements, it may flex in the wind, causing picture break-up. Then the arm holding the LNB has to be more rigid because there is less mechanical tolerance in the focus position than with a smaller dish. Finally, bearing in mind that the whole dish would make a damn good sail, the mounting must be VERY rigid. It therefore is worthwhile paying a premium price for the dish provided that it is justified by a sound mechanical construction. Unfortunately, there are many, many cowboys in this business in Cyprus. Examples in my experience:
1. Digital receiver packed up a couple of years ago after ~18 months: supplier full of regrets stated that the importer had gone bankrupt and no one took his place. He offered a replacement bottom-of-the-range one at £500. As I was going to Switzerland that week, I bought a much better model there for CHF 240 = <£100.
2. Problem (different bloke): poor picture intermittently: he claimed it was the LNB. The "new" one was clearly second hand. Nice business, swapping round everybody's LNBs for £40 a go. As the pic was no better, I insisted he came back and replaced the old one and refunded my money. Several days of argument and threats of action for fraud before he did so.
3. Same problem: new bloke: he said it was clearly the LNB and he put in a new (checked) high gain one, excellent service, but I asked him whether a tree could not be the cause, with the wind blowing across the line-of-sight. As the tree was ~25 m away, he said he doubted it but if it was no better, then he could come back and move the dish. £35. I phoned him 3 days later and told him that I was now convinced it was the tree and he replied there was no way he could shift it in under 3 weeks and he would charge £100 for the work. I found this unacceptable.
I bought 4 new anchors, shifted the antenna myself 15 m away and fixed it, all in 20 minutes. As I didn't have any instrument for adjustment, I carted the receiver and a portable TV to beside the antenna and adjusted the alignment vertically an horizontally for optimum: 15 minutes at the outside. As the coax cable run from the Rx to the LNB was now shorter, I cut the cable and put back the connector and taped it up: 5 minutes. It therefore took me a total of 40 minutes without the proper equipment and this cowboy was wanting £100 to do the job.
Anyone know who else can charge £150/hour for his work?
Beware of cowboys (I'm not saying there are not any serious installers).