C band only???

[trommy]

What have I got here.I know it works and appears to switch polarities when I choose V or H tp (because the signal strength remains constant).It's a Star Trak with a Polar Axis porolator?but only has 1 coax connection.It has these numbers on it in 3 connected blocks:25 80 35.The neibour of the former owner said "he took something off the front before he moved".Is anything missing?Can somebody educate me??Thanks :noidea::thumbsup:

[Costactc]

Looks like an old polarotor with an old school c band lnb. The blue thing is your servo motor which flips your polarity. In order to use it you would need an stb like a pansat or an old ird or 4dtv receiver to switch polarity. I pulled a couple of those off buds last year.
My suggestion is to just slap an lnbf on the dish.

[satchick]

It's currently set up to receive C-band only (there's only one LNB on that dish). To receive both C and KU bands you can get an LNBF that will receive both, and usually has switching built in too.

[trommy]

[QUOTE=costactc;194803]Looks like an old polarotor with an old school c band lnb. The blue thing is your servo motor which flips your polarity. In order to use it you would need an stb like a pansat or an old ird or 4dtv receiver to switch polarity. I pulled a couple of those off buds last year.
My suggestion is to just slap an lnbf on the dish.[/QUOTE
I think it was Ice who told me my homesat could do motor control and I assume? polorization control.??I do have an old analog rcv.I think Satchick has the better idea.Thanks again

[trommy]

Looks like an old polarotor with an old school c band lnb. The blue thing is your servo motor which flips your polarity. In order to use it you would need an stb like a pansat or an old ird or 4dtv receiver to switch polarity. I pulled a couple of those off buds last year.
My suggestion is to just slap an lnbf on the dish.


It's currently set up to receive C-band only (there's only one LNB on that dish). To receive both C and KU bands you can get an LNBF that will receive both, and usually has switching built in too.
Thanks Satchic.I should have known this when I saw the word "Polar..." in the name but I'm just green enough to hope I was wrong?That's one thing one has to accept in FTA;being wrong much ,if no most,of the time.Thanks

[Gold]

I have both a DMX741 & a DMX741U...Personally I like the 741U a little better. It's a little more forgiving on Ku. My 741 has to be dead on or it rapidly looses quality.

If you are interested in 4DTV then don't use the 741U.

But if not, I would certainly recommend it especially in your area where you can pick up many more Atlantic Sats then I can. If you purchase one get it with the dielectric plate for circular C Band

BTW I had a 7.5' Perfect 10. It was great. Then I got three 10'ers :noidea:

[Costactc]

[QUOTE=costactc;194803]Looks like an old polarotor with an old school c band lnb. The blue thing is your servo motor which flips your polarity. In order to use it you would need an stb like a pansat or an old ird or 4dtv receiver to switch polarity. I pulled a couple of those off buds last year.
My suggestion is to just slap an lnbf on the dish.[/QUOTE
I think it was Ice who told me my homesat could do motor control and I assume? polorization control.??I do have an old analog rcv.I think Satchick has the better idea.Thanks again

I'm not sure if you missed in my post that my suggestion was to slap an lnbf on your dish.
Ihad been using a dmx741 for both c/ku but noticed ku a bit weak. I also used a dual ouput bsc621-2d with the ku side being universal. Since I have 2 big boys I decided to dedicate each one to its own band.

[trommy]

I have both a DMX741 & a DMX741U...Personally I like the 741U a little better. It's a little more forgiving on Ku. My 741 has to be dead on or it rapidly looses quality.

If you are interested in 4DTV then don't use the 741U.

But if not, I would certainly recommend it especially in your area where you can pick up many more Atlantic Sats then I can. If you purchase one get it with the dielectric plate for circular C Band

BTW I had a 7.5' Perfect 10. It was great. Then I got three 10'ers :noidea:
Gould,you must have been reading my mind.That little extra tidbit is what I needed.I was about to click on sponsors for the 741 but will now get the
741U.I am interrested in Atlantic birds too.Thanks a bundle.:thumbsup:

[trommy]

[QUOTE=trommy;194837]

I'm not sure if you missed in my post that my suggestion was to slap an lnbf on your dish.
Ihad been using a dmx741 for both c/ku but noticed ku a bit weak. I also used a dual ouput bsc621-2d with the ku side being universal. Since I have 2 big boys I decided to dedicate each one to its own band.

I realized it after I answered your post.'Sorry about that chief'.That's something I have wondered about;I have a 10'er that needs work and another at my son's future in-laws.I was thinking the 7 1/2'er might make a good dedicated KU dish down the road.With winter coming I just want to get some extra channels.Thanks alot:thumbsup:

[Costactc]

7.5' dish on ku is a bit of overkill but you'll definitely scan everything in, you'd be surprised as well as how many c band channels you'll pull in with that dish. Sats at 91, 99 and 103w are my favourites with excellent open channels.

[trommy]

Those are the ones I'm interested in along with the 87? (NASA channels).

[Terryl]

One other thing to look at, is if the dish was designed for "C" band only then the mesh may be too big to use on "Ku" band, you can test this with a standard wood pencil, if it fits through the mesh of the dish then it may be to big of a mesh pattern and you may have low signal problems with "Ku" band on a “C” and “Ku” band LNBF's, "Ku" band is a much smaller wave length then "C" band.

Average wavelength for “C” band is 66.6 mm for a full, 37.5mm for a ½ and 18.75mm for a ¼ wave

Average wavelength for “Ku” band is 25mm for a full, 12.5mm for a ½ and 6.25mm for a ¼ wave

So you can see that if the mesh is to big some signal will get through and you will have a low signal for “Ku” band.

[trommy]

I remember thinking of that before after reading about that(pencil) thingy and I'm prety sure the hole are quite smaller than a pencil,although I haven't measured.It's a Unimesh if that helps.Thanks Terry.

[Gold]

One other thing to look at, is if the dish was designed for "C" band only then the mesh may be too big to use on "Ku" band, you can test this with a standard wood pencil, if it fits through the mesh of the dish then it may be to big of a mesh pattern and you may have low signal problems with "Ku" band on a “C” and “Ku” band LNBF's, "Ku" band is a much smaller wave length then "C" band.

Average wavelength for “C” band is 66.6 mm for a full, 37.5mm for a ½ and 18.75mm for a ¼ wave

Average wavelength for “Ku” band is 25mm for a full, 12.5mm for a ½ and 6.25mm for a ¼ wave

So you can see that if the mesh is to big some signal will get through and you will have a low signal for “Ku” band.

Unimesh dishes work great (well pretty good) for Ku. I have two :yes:

[trommy]

I ordered the 741U last night from HyperMegasa+ for 60oo CDN shipping in.I couldn't find any supplier in this region at a better price.Now I have to wait for it to arrive (7-14 days) before I can put the dish up.

[Costactc]

You should have tried e-bay, you overpayed by about $20.

[trommy]

Being not too computer savvy,I'm a little wary of ebay rip-offs.

[Costactc]

I've purchased at least 20 sat items from e-bay with the only bad experience was when the packaged was a bit delayed. Nonetheless, you'll be happy with the 741.
You might need to skew for better ku results.

[Gold]

Being not too computer savvy,I'm a little wary of ebay rip-offs.

I can understand that. I have been ripped off countless times on ePay, & avoid it if possible. Just think I use to sell there for 8-9 years.

I usually like to play it better safe then sorry

[catthepatch]

I got my 741 regular from hyper myself. Seems to be a good guy, only took about 3 weeks though. Went through eplay myself and got it for around $30, just under $60 after exchange, shipping and all that other stuff that just keeps adding up! Hope you have great results with your new toy! I know I have...

Happy Testing!!!

[trommy]

That's the thing I'm worried about,it says 7-14 days to Canada.I didn't see that 'till I went back to order the Dicque switchesThey did manage to put them in the same box.(I ordered the 741 at 11PM and the switches first thing next morning.)Your truck looks like me driving from Halifax,'cept mine's blue.I guess most C band enthusists have the same story.Thanks

[Gold]

That's the thing I'm worried about,it says 7-14 days to Canada.I didn't see that 'till I went back to order the Dicque switchesThey did manage to put them in the same box.(I ordered the 741 at 11PM and the switches first thing next morning.)Your truck looks like me driving from Halifax,'cept mine's blue.I guess most C band enthusists have the same story.Thanks

You wont need a switch for the DMX, it's built in. I hope the ones you ordered were for another project

[trommy]

Dicque switches,just in case winter beats me to the punch.I'll have to stick with ku only,&^%$$#.

[Costactc]

I think you'll make it with time to spare. It would be a shame to not scan in c band during those long boring winter months. After all most of the good channels are on c band.

[Gold]

And besides, winter doesn't start for two months :tehe:

[Costactc]

And besides, winter doesn't start for two months :tehe:

Going to be about 28f tonight in my part of the North Pole Gold. We're usually ok until the end of November.

[trommy]

Thanks guys I hope you're right.I can remember a few times when it got cold enough to freeze the ground in early November.There's still an outside chance I might get a 10'er up if the weather stays mild enough.

[Costactc]

No problem putting up a 10'. Just dig your hole and set your pole, installing the dish won't take more then a day. After that track the arc and skew the lnbf and sit tight for whatever mother nature throws at you.

[trommy]

Something I should have checked out sooner is the motor and wires.I have 6-10' of the ribonwire but I read where you could use underground sprinkler wire for the motor???Sounds feasable to me.I would expect it to be of adaquate size to carry the amp load.

[Gold]

Something I should have checked out sooner is the motor and wires.I have 6-10' of the ribonwire but I read where you could use underground sprinkler wire for the motor???Sounds feasable to me.I would expect it to be of adaquate size to carry the amp load.

I have read plenty of post doing that, with no trouble at all.

My two are pretty far 225' & 250' I ran 12 AWG for the motor & 14 AWG for the sensor, which is probably a little overkill. I also live in a very rocky area, so I put mine in gray conduit

[Costactc]

I'm running 95' of ribbon for my 6' solid and about 110' for my bud, all wires in the ground with pvc piping.

[trommy]

I think you'll make it with time to spare. It would be a shame to not scan in c band during those long boring winter months. After all most of the good channels are on c band.

It's been 14 days since the order was sent(7-14 days to Canada).I expected it within 7.This is why I am reluctant to place international orders.Doesn't PayPal or Visa insure the order?

[Gold]

Yes, but they will ask you to contact the merchant first. <br />
<br />
I sell international &amp; it normally is faster then 14 days...Sometimes not. I know as a merchant I always appreciate hearing from the...

[Costactc]

When I bought my lnbf from Hypermeg, it took almost 2 1/2 weeks to arrive. That's the longest I've ever had to wait for any sat equipment.

[trommy]

I just got an email.It's 7-14 'mailing' days.The weather doesn't look too favourable 'till next week anyway according to the Weather Net's 14 day trend.I've got lots of other work to keep me busy,but I'm just so anxious to know that I'll have some decent programing to watch through the winter

[Costactc]

Have you dug the hole? If so, have you set the pole? Make sure the pole is 100% plumb.

[satchick]

If you haven't set the pole yet, remember to drill a hole and insert a piece of rebar horizontally in the bottom of the pole to keep it from turning in the concrete. Should also install your conduit before pouring concrete.

[Gold]

That's a good point Schick! I welded tabs on mine

[trommy]

Have you dug the hole? If so, have you set the pole? Make sure the pole is 100% plumb.

scroll down to my post '7 1/2' Unimesh' and see the pictures of my 'pole without a hole'.

Update:Here's pic of my 'Pole Without a Hole'.

[Costactc]

scroll down to my post '7 1/2' Unimesh' and see the pictures of my 'pole without a pole'.

I had totally forgot about that thread. Since your not digging a hole I don't see mother nature playing a factor at all in this install.