Best dish for C-Band

[Archived-1]

The plate is in. Which way would it require skewing? or would I be better replacing the LNB holder with this type?

Use that holder and swap to your PF dish as mentioned.

 

[John]

... Great minds think alike nelson lol ... i'm in the final stages of a re-build after recent violent gales trashed my beloved 2.2mtr Precision. Iv'e got a prototype lnb platform under construction on my 1.8 Channel Master that's giving me loads of space for the forthcoming extra lnb farm. @ pipedream, i found that getting the conical scalar in exactly the right position on the feed for best S/N was fairly critical for best performance. Forget going for absolute max signal strength as the prime objective, concentrate on your S/N .

 

[Archived-1]

... just sharing some snow /wind damage experience on my Precision 2.2mtr PF using a "Jumbo" heavy duty motor & still in mourning over this :-(
It survived last years snow and gales, but not this years .... some before and after pics.
These are not specifically snow damage related pics, this damage was done by the extremely high gale force winds we had this time last year even though the dish was lowered into the horizontal position and roped down. It still managed to get trashed along with the motor unit. A very very frightening experience at the time and was fully expecting it all to end up through the extensions window. So take extra care chaps when heavy snow or winds are forecast so as to avoid a heartache.
Plans to staighten up the mount & obtain a C/M 1.8 to replace hopefully this summer all being well.

... Great minds think alike nelson lol ... i'm in the final stages of a re-build after recent violent gales trashed my beloved 2.2mtr Precision. Iv'e got a prototype lnb platform under construction on my 1.8 Channel Master that's giving me loads of space for the forthcoming extra lnb farm. @ pipedream, i found that getting the conical scalar in exactly the right position on the feed for best S/N was fairly critical for best performance. Forget going for absolute max signal strength as the prime objective, concentrate on your S/N .

Hi John what happened to this dish please, was it not salvageable pal ?.

 

[John]

... You don't want to know Martin, it'll make you weep lol. Also trashed a heavy duty "Jumbo" positioner. The gales that day were absolutely mental and to be honest i shi.. / poo'd me pants. I only live a knats away from you near Mansfield so i bet you can remember it, something like a year ago ?. The dish was facing the way you can see it in my profile pic but was lowered down on like a see-saw mount arrangement and the Cband lnb was touching the ground. It was even roped down from the dish arms back to the bottom of the ground mount for extra security i thought -- WRONG. The gusts were that strong that it snapped the rope & lifted the whole lot back up to vertical at high speed where it came to a violent abrupt stop in the vertical position. The impact was enough to shatter the internals of the Jumbo positioner, bend the top pole section and warp / knacker the 2.2 Precision. A BAD day Martin, still getting withdrawal symptoms lol dear me.

 

[lovelyperson]

... You don't want to know Martin, it'll make you weep lol. Also trashed a heavy duty "Jumbo" positioner. The gales that day were absolutely mental and to be honest i shi.. / poo'd me pants. I only live a knats away from you near Mansfield so i bet you can remember it, something like a year ago ?. The dish was facing the way you can see it in my profile pic but was lowered down on like a see-saw mount arrangement and the Cband lnb was touching the ground. It was even roped down from the dish arms back to the bottom of the ground mount for extra security i thought -- WRONG. The gusts were that strong that it snapped the rope & lifted the whole lot back up to vertical at high speed where it came to a violent abrupt stop in the vertical position. The impact was enough to shatter the internals of the Jumbo positioner, bend the top pole section and warp / knacker the 2.2 Precision. A BAD day Martin, still getting withdrawal symptoms lol dear me.

Not a nice event......I and all others here can imagine your feelings when you saw the resulting weather damage.......that hurts!

Machos or not we love our dishes.

Good luck with your rebuild.

 

[Archived-1]

Yes I recall the winds John I lost a few ridge tiles, what a shame pal I was hoping you still had it for me to try and repair for myself I would love a 2.2 Precision dish

 

[John]

Cheers LP, 95% there with it .

 

[John]

... it was well warped Martin + dented, bearing in mind that these Precision dishes are spun with great surface accuracy etc to give it it's great performance ,if i thought it could have been recovered i would have given it a go chap.

Here's the real rub, scrap value was ..................................................................................................................................................................................................................................................... £22. Arghhhhhhhhhhhhhhh

 

[Archived-1]

If you ever find another two John give me a shout please

 

[Huevos]

C band l.n.b offset about 6 degrees

Surely can't be offset 6º. Or do you mean receiving from 6º, i.e. 3º offset?

 

[Pipedream]

Decided to swap the dishes and put the PF up. Will have a play tonight see if it is any better

 

[John]

Very nice squire , look forward to your findings

 

[RimaNTSS]

@Pipedream If results of PFA will not satisfy you, will you trow the dish away? Just say where! Nice dish. Combo LNB, for sure is not best option to do comparison tests. Maybe in C-band it will work OK, but Ku will lose, that is for sure.

 

[Captain Jack]

I have the same 1.8m PF CM dish - will be interesting to see your results there.

 

[Pipedream]

@Pipedream If results of PFA will not satisfy you, will you trow the dish away? Just say where! Nice dish. Combo LNB, for sure is not best option to do comparison tests. Maybe in C-band it will work OK, but Ku will lose, that is for sure.

I will use the combo LNB to find all the sats again then change it to the C band LNB

 

[archive10]

Decided to swap the dishes and put the PF up. Will have a play tonight see if it is any better

I've always wondered about the design of the CM180 PM mount. So let me get this straight...
You can take your Offset CM180, with the support ring attached, off the polar mount.
Then the PF CM180 with another ring almost just slides on, you reconnect top and bottom bolts, and the actuator, and you're done.

...is that how it is?
'coz that would explain a lot about the offset CM180 polar mount design...

 

[beavs2112]

Decided to swap the dishes and put the PF up. Will have a play tonight see if it is any better

Beautiful dish Thanks for the nice pictures.

 

[Pipedream]

I've always wondered about the design of the CM180 PM mount. So let me get this straight...
You can take your Offset CM180, with the support ring attached, off the polar mount.
Then the PF CM180 with another ring almost just slides on, you reconnect top and bottom bolts, and the actuator, and you're done.

...is that how it is?
'coz that would explain a lot about the offset CM180 polar mount design...

That is exactly what I did the back half of the PF mount goes on to a 3.5" pole, so to safe changing the pole I just put it on to the offset mount. There is a small difference but nothing a few washer does not fix

 

[samoloko]

Decided to swap the dishes and put the PF up. Will have a play tonight see if it is any better

can you post a few closer pics from PM and support ring

 

[nelson_b]

Surely can't be offset 6º. Or do you mean receiving from 6º, i.e. 3º offset?

Hi --
Indeed Huevos ... not 6 degrees ... a little late in the evening when i posted that
in fact when i,m receiving the best C band signal at 0.8 west ... my dish (k/u l.n.b.) is pointing just a fraction short of 5.0 west