Reply With QuoteNice for units/renters.
Whats the cost.
Dish? What dish?
For some of you it might be against the law or against body corporate rules to have a satellite dish on your roof.
Here is a way out.
Check these inconspicuous looking dishes out!
| Look Here -> |
Nice for units/renters.
Whats the cost.
No idea Billy.Originally Posted by BillyGoat
Guess you have to contact them to get a price.
Looks good especially for portable setups .. will be interested to see posts from anyone who has used it .... also would like to know price.
it will probably work in the US, as they have some well powerful signals, and they're in cicular polarity, minimising the need for accurate skew. in australia, we use linear, and some of our sats are much less powerful than theirs. don't know how it will go on the optus skew!
Not according the FAQit will probably work in the US, as they have some well powerful signals, and they're in cicular polarity, minimising the need for accurate skew. in australia, we use linear, and some of our sats are much less powerful than theirs. don't know how it will go on the optus skew!
SelfSat is a Dual Linear Polarization Satellite Antenna ˇ°Horizontal / Vertical,ˇ± it can operate on full Ku band frequency range 10, 7 to 12, 7 GHz, it does contain one LNB for the Satellite signal reception.
Where does it go? On the roof or in the roof?
I want one
I have emailed the Asian office for info (as probably some of you have). However if I get a reply in Engrish I will post the details.
it seems to have a rather broad range, or beam, as it boasts that you "can see all satellites", which seems to say to me, that it is not focusing a large area to where the signal needs to go, so much as just catching the signals (if that makes any sense), and for such a small thing, i can't see it being much more effective than a dish of the same size.
It does have settings for azimuth, elevation and skew so it must be able to be pointed accurately
Maybe it has internal amplification
yep. it says it has an internal LNB, as it should have, but what i mean, is that it is not reflecting the signal of a large area, back into the dipole, like a normal dish, so much as it seems to have an array of dipoles. i could be wrong, but one may be better off, having a small 45 cm dish, and putting it in a plastic box type thing, and saying its an airconditioning unit of sorts.
Pretty sure it still has to be aimed at a particular satellite. (else, why offer a motor option) I think they're saying that it can see any satellite it's aimed at.
It still could only "see" whatever signal is hitting the flat side. Which would put it in the same league as a 20-25cm dish. It would need a pretty strong signal.
they should of looked like that since day 1, get rid of the eye sores u see on all the roofs, looks good
Let's not let fiction get in the way of fact. There's no magic bullet here guys.
The gain for any horn or parabolic dish is directly proportional to the surface area of the aperture.
The aperture or surface area for this antenna is 475 x 259 = 1,230 square cm.
The stated gain for the Selfsat is a pretty miserable 33dBi @ 12.7GHz.
So let's see what your stock standard pay TV parabolic offset Ku antenna does.
Your standard 65cm job, has a gain of 37dB @ 12.7 Ghz and an effective aperture of pi x r squared = 3,318 square cm and an efficiency of around 70%*. Now that's 4dB more than the Selfsat .... or in satellite terms ...... one heck of a lot.
* if the parabola was mirror perfect the efficiency could be 100%. Practical consumer antenna are rarely more than 70% efficient.
A little 43 cm parabolic offset will match the Selfsat and achieve 33dBi at 12.7GHz, (assuming the same dish efficiency). It's surface area is 1,452 square cm.
What does this mean?
Well the Selfsat is in fact very efficient for it's 1,230 square cm surface area!; with a calculated 80% efficiency. That is impressive!
So in summary Micks right ..... they'd struggle here on all but the strongest TPs'.
If you wish to work the maths yourself go here.
it would work well in the US or the UK, as there they normally use 35cm elliptical dishes, sometimes mesh, as the main satellites are just so powerful.
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