Famaval 2.4 Extension Petals - advice please

[bignick]

Hi guys

Myself and manicop went back out to this dish recently to re-finetune it as the owner rekoned he lost some channels at about 2300L. We reset it using Simons petal removal idea...:-thumb1.... worked a treat!! It helps that we are starting to understand how to get the best out of the satlook now. I'll phone the guy back in a day or two just to make sure its gone ok but we both felt there was a massive improvement and it was ssssooo much easier with the petal out of the way.

Cheers

Nick

It seems you did a good job if it works all night.Well done guys.What about 8-10am?
Does ITV Yorkshire(10.891H) work after 7 pm?And ABC1 (channel 281).
I just started using the satlook recently(because i lost my roversat) and i cant get the "4th light" on or s/n readings,bloody annoying so i rely on the spectrum and span reading.
One other tip is to take off the bottom petal so you can get closer to the dish and adjust lnb for final readings without disturbing the dish,then carefully put petal back.
As for not been in line,I had that problem on a couple of dishes but not a big deal as long as the final shape is not warped,you can tell by looking at the dish from a side ans bottom view.do you have the old beige dish and new grey petals?The grey dishes have a slightly different edge that fits better to the petals.

 

[virado]

Google translation

Greetings to all, it seems that this antenna is a rare beast in any paraboloide the focal point optimum is determined by the diameter and depth, apart from the mechanical problems, the numbers add up to 240 cm but not at 310 cm. Not .....






saludos a todos, parece que esta antena es un bicho raro, en cualquier paraboloide el punto focal optimo esta determinado por el diametro y la profundidad, aparte de los problemas mecanicos, los numeros cuadran a 240 cm pero no a 310 cm. no se......

Please post in English, or at the very minimum, include a translation. Admin

 

[fuertesport]

hi trigger
i live in fuerteventura
can you fit petals to a std sky dish i.e 1.3m
to make it bigger
regards
simon

Find attached the pictures

Note this dish was installed in the morning and the concrete base was due to be done in the afternoon. Normally I would recommend doing the base first but it's football this weekend and everyone is in a rush!!

Pic 1 - Shows all 3 ties to the ground
Pic 2 - Close up of how cable is attached to back mount
Pic 3 - Close up of what we call a "Turnbuckle". As you turn it, it tightens both ways (left hand thread on one side and right on the other)
Pic 4 - The downward stay - funny angle I must admit - Different guage wire but it was all the local supplier had left!
Pic 5 - Note the bolt in the middle of the mount. We drill and Tap the mount and put a bolt in each side because we have found the mount will still turn on the pole no mater how tight you do the 3 bolts.

Hope this all helps

Let me know if you need more info, pics etc

Triggs

 

[virado]

In order that the focal point continues being the same 93 cm, the depth of the disc tendria that to be more or less 65 cm if so changes the value of the f/d to 0.300 Someone can confirm the profunidad of 65 cm?

 

[bignick]

In order that the focal point continues being the same 93 cm, the depth of the disc tendria that to be more or less 65 cm if so changes the value of the f/d to 0.300 Someone can confirm the profunidad of 65 cm?

Perhaps the info at the end of this post will help: http://www.satellites.co.uk/satelli...e-installations/98923-my-2-dishes-cyprus.html

Hope that helps

Nick

 

[virado]

Bignick thank you for your help
not seen the post before, right i was thinking the f/d it is 0.300 an angle of lighting is needed of at least 150 º not to leave of the dish because then we catch noise and if it is this way and with the extensions it is obtained 2db more (he,she) means that with 240 and the same focal distance and the same horn feed illuminates out of the parable? Or probably there is a small difference of 0.5 cm in the position of the conversor between(among) 240 and 310?

Saludos

 

[johnreynolds]

Hi

I live on the Costa Blanca have a 2.4 Famaval Dish installed to our community of 50 Properties and looking to possibly extend the dish to 3.1 by way of Petals to better improve BBC2 and Ch5. We have free to air channels. 2 questions:-
1. Where might we be able to purchase the Petals from & at what sort of cost??
2. Has any one else had similiar thoughts for same reasons and did it help??


Regards

John

 

[woborny]

the petals may not make the channels become available 24/7 but depending where exactly you are they will increase reception of bbc2 for maybe about an hour or two only. expect to pay around 400 euros in spain for the petals

this has been discussed before on here for the costa blanca....

http://www.satellites.co.uk/satelli...tion-tech/134933-famaval-panels-2-4-dish.html

best get the company who installed the dish to do the petals, if you were satisfied with their work!

 

[horse236]

2/ Fit all the petals but leave all bolts loose so they hold in place.
3/ Tighten the bolts between the petals first before the ones between the dish and petals. This is because the holes that are on the dish side of the petal is oval shaped allowing for a bit of "play". This should also pull the shape together.
4/ All the time while tightening the bolts check that the surface of the petal flows smoothly onto the dish. You may need to tip the dish back down to check this.

I have fitted over 30 of these dishes now with petals and even still sometimes they are a B*st*rd to get to fit right.

With the extra weight of the petals the dish becomes unstable in the wind and tends to wobble. We fit steel wire from the bottom of the back mount (not the dish) and tighten with a Turnbuckle fitted to a hook bolt fitted into the ground. This does not need to be tight as what it actually does is stop the dish lifting.
We then fit the same arrangement on either side of the back mount and this stops side to side wobble. We also use these "adjustments" to peak the dish as when you tighten the turnbuckle the dish pulls to one side or the other.

Can't think of anything else but if my gibberish does not make sense let me know and I will send pictures.

Good luck

Triggs[/QUOTE]