New Product - GEOSATpro SL1PLL - World's First PLL KU Standard LNBF
- Thread starter SatelliteAV
- Start date
- Latest activity Latest activity:
- Replies 58
- Views 11K
- Status
I received my LNB today and I am very pleased with its results.
It is very reasonably priced for it's performance and accuracy.
I'm using a 1.2 meter dish so I can't say if the signal quality improved.
The quality is about the same and I receive all of the S2 transponders on the Ku band without any issues.
The advantage of a PLL LNB is that the LNB will be stable, the frequency will be accurate and it will not drift.
Using the microHD with this LNB the signal quality is more stable than my two year old red Techsat Tracker II+ 0.2db LNB and
the frequency is also much more accurate when compared to broadcaster's published frequencies.
My old Techsat Tracker II+ LNBs had an average absolute difference when compared to eight transponders of 1.06 MHz.
The GEOSATpro SL1PLL had a absolute different of only 0.188 MHz (188 kHz).
I am not sure where to find low symbol rates under 1000 Ksps to test with.
It is very reasonably priced for it's performance and accuracy.
I'm using a 1.2 meter dish so I can't say if the signal quality improved.
The quality is about the same and I receive all of the S2 transponders on the Ku band without any issues.
The advantage of a PLL LNB is that the LNB will be stable, the frequency will be accurate and it will not drift.
Using the microHD with this LNB the signal quality is more stable than my two year old red Techsat Tracker II+ 0.2db LNB and
the frequency is also much more accurate when compared to broadcaster's published frequencies.
My old Techsat Tracker II+ LNBs had an average absolute difference when compared to eight transponders of 1.06 MHz.
The GEOSATpro SL1PLL had a absolute different of only 0.188 MHz (188 kHz).
I am not sure where to find low symbol rates under 1000 Ksps to test with.
Last edited:
On my GEOSATpro 90cm dish I am seeing HUGE improvements in signal quality over the old GEOSATpro SL1 "Bullet" LNBF.
PBS's 12180 transponder saw a 15% jump in signal strength; NBC went from being a difficult signal to lock on my 90cm and now I'm getting the East/Central and Mountain/West transponders with much stronger signal. East/Central come in great with the LNBF skewed -26. Here's the best thing about it this new LNBF: I can now lock Mountain/West without the weird skew at a slightly higher strength than I could with the old LNBF WITH the proper -26 degree skew! I'm picking up some channels on my 90cm with this new LNBF as well as my 1.2m dish picks them up with the old SL1 LNBF!
I see now why you've completely phased out the SL1s and your bundles on eBay now come with the SL1PLL by default. The old SL1 LNBF is a piece of crap when compared to this thing.
Definitely worth the $25 and I'm going to order another one for my 120cm dish. I believe this is now the definitive Ku LNBF.
PBS's 12180 transponder saw a 15% jump in signal strength; NBC went from being a difficult signal to lock on my 90cm and now I'm getting the East/Central and Mountain/West transponders with much stronger signal. East/Central come in great with the LNBF skewed -26. Here's the best thing about it this new LNBF: I can now lock Mountain/West without the weird skew at a slightly higher strength than I could with the old LNBF WITH the proper -26 degree skew! I'm picking up some channels on my 90cm with this new LNBF as well as my 1.2m dish picks them up with the old SL1 LNBF!
I see now why you've completely phased out the SL1s and your bundles on eBay now come with the SL1PLL by default. The old SL1 LNBF is a piece of crap when compared to this thing.
Definitely worth the $25 and I'm going to order another one for my 120cm dish. I believe this is now the definitive Ku LNBF.
Id love to see a real spectrum analysis comparison, and see real temperature variations to see stability.
It just seems all odd how this is being touted as a first when its clearly no where near a first. Maybe its the first theyve ever sold, but its no where near the first ku standard lo pll lnb. There are lots out there. 300khz stability is ok, but its defn not impressive, its not even good imo, its only ok.
how a pll works is it locks the vco to a stable ref oscillator, getting a very stable 100mhz oscillator is alot more realistic then getting the same stability out of a 10750mhz oscillator. by locking the 10750 vco to the very stable 100mhz oscillator you can get a very stable 10750mhz freq at the cost of phase noise, because the vco is constantly being readjusted based off the phase of the ref oscillator it induces alot of phase noise. So phase noise is the cost you pay for stability.
So im not quite seeing why everyone is so excited about an lnb with marginal stability and increased phase noise. There are dro oscillators out there that have much higher stability and much lower noise. A pll imo is only required when stability is more important then noise. Which sometimes it is.
I have a great NJR lnb that locks to a 10mhz ref, I use my gps disciplined oscillator for amazing stability. It defn cost more then $25 though. But I dont buy junk either, if I cant afford what I want, I'll save up till then.
btw some seem to believe a pll wont drift due to temperature, thats simply not true , the vco is locked to the ref oscillator, if the ref drifts so will the vco. feeding a pll with an external source like a gps disciplined oscillator will solve that issue, or using an oscillator oven will help as the oven will attempt to keep the oscillator at a specific freq, but even these drift a little based on external temperature, I bet you this little $25 lnb does not have an oven oscillator in it. So its going to drift too.
I have no doubt based on user replys that this $25 lnb is better then other $25 lnb's, but its performance is defn nothing to write home about when compared to other pll or even high end dro lnb's out there.
It just seems all odd how this is being touted as a first when its clearly no where near a first. Maybe its the first theyve ever sold, but its no where near the first ku standard lo pll lnb. There are lots out there. 300khz stability is ok, but its defn not impressive, its not even good imo, its only ok.
how a pll works is it locks the vco to a stable ref oscillator, getting a very stable 100mhz oscillator is alot more realistic then getting the same stability out of a 10750mhz oscillator. by locking the 10750 vco to the very stable 100mhz oscillator you can get a very stable 10750mhz freq at the cost of phase noise, because the vco is constantly being readjusted based off the phase of the ref oscillator it induces alot of phase noise. So phase noise is the cost you pay for stability.
So im not quite seeing why everyone is so excited about an lnb with marginal stability and increased phase noise. There are dro oscillators out there that have much higher stability and much lower noise. A pll imo is only required when stability is more important then noise. Which sometimes it is.
I have a great NJR lnb that locks to a 10mhz ref, I use my gps disciplined oscillator for amazing stability. It defn cost more then $25 though. But I dont buy junk either, if I cant afford what I want, I'll save up till then.
btw some seem to believe a pll wont drift due to temperature, thats simply not true , the vco is locked to the ref oscillator, if the ref drifts so will the vco. feeding a pll with an external source like a gps disciplined oscillator will solve that issue, or using an oscillator oven will help as the oven will attempt to keep the oscillator at a specific freq, but even these drift a little based on external temperature, I bet you this little $25 lnb does not have an oven oscillator in it. So its going to drift too.
I have no doubt based on user replys that this $25 lnb is better then other $25 lnb's, but its performance is defn nothing to write home about when compared to other pll or even high end dro lnb's out there.
Updatelee,
Sorry that you are put off by our research and development to offer hobbyists an option. Satellite AV has a long history of providing quality and innovative products. We believe that our success is based on our integrity and providing great products at a very fair price. Why risk our name by offering a questionable product with unfounded hype and marketing BS?
Please link to any available standard LO 10.750 Ku band linear PLL LNBF. If the SL1PLL is not the world's first, please educate me and we will change our promotion.
Right now you are talking trash about a product you have never tested. You are welcome to test and provide an honest review and I will even send you a free sample! I am sure you are very knowledgeable and your input would be appreciated by SatelliteGuys.
Btw. We are the first to offer a lifetime warranty on workmanship and UV damage resulting in product failure. We do not state zero drift, we will warranty not to drift more than +/- 300khz. We are backing our product with a promise. If you don't love it, we will refund the purchase price! Not $25, but only $17..... LOL!!!
Sorry that you are put off by our research and development to offer hobbyists an option. Satellite AV has a long history of providing quality and innovative products. We believe that our success is based on our integrity and providing great products at a very fair price. Why risk our name by offering a questionable product with unfounded hype and marketing BS?
Please link to any available standard LO 10.750 Ku band linear PLL LNBF. If the SL1PLL is not the world's first, please educate me and we will change our promotion.
Right now you are talking trash about a product you have never tested. You are welcome to test and provide an honest review and I will even send you a free sample! I am sure you are very knowledgeable and your input would be appreciated by SatelliteGuys.
Btw. We are the first to offer a lifetime warranty on workmanship and UV damage resulting in product failure. We do not state zero drift, we will warranty not to drift more than +/- 300khz. We are backing our product with a promise. If you don't love it, we will refund the purchase price! Not $25, but only $17..... LOL!!!
Last edited:
re reading I came off too negative, its hard to convey tone in a post and clearly im not very good at it. I didnt mean to come off as bashing your product, I mearly wanted to clear up a few things.
It may well be the first pll lnbf, but it is most defn not the first pll lnb and all a lnbf is an lnb and feedhorn combined into one piece vs two. Its not really a big deal. I mearly want to make it known that there are other alternatives on the market.
I do realize you never stated it wont drift, that was another user qwert515 in port #23
Im sure its an excellent product for the price, youve got an excellent reputation and Ive used some of your lnb's in the past and was happy with them.
It may well be the first pll lnbf, but it is most defn not the first pll lnb and all a lnbf is an lnb and feedhorn combined into one piece vs two. Its not really a big deal. I mearly want to make it known that there are other alternatives on the market.
I do realize you never stated it wont drift, that was another user qwert515 in port #23
Im sure its an excellent product for the price, youve got an excellent reputation and Ive used some of your lnb's in the past and was happy with them.
In my opinion, the Invacom models are the benchmark that all LNBFs are measured against. The Invacom products tend to drift with age and it is quite common to observe a unit that has drifted 5+ MHz and the lenses fail with UV exposure. Other than those items, the Invacom is a great product but with a higher price tag.
The SL1PLL offers great stability but with a slightly higher noise generation. The lower cost with a lifetime warranty against defect and UV damage definitely favors the SL1PLL.
The SL1PLL offers great stability but with a slightly higher noise generation. The lower cost with a lifetime warranty against defect and UV damage definitely favors the SL1PLL.
You are right about the drifting. I'm seeing about a 4 Mhz drift on mine when I do blindscans. I'll give the SL1PLL a shot. ;-)
I'm still super impressed with my GeosatPro SL1PLL. I've being using it for several months and it has delivered solid results in the extreme rains we've had already this Fall. I would recommend it to anyone. I did try the Avenger univeral PLL first and I found the GeosatPro model to be superior.
naked pictures, please
I almost started my own thread last week.
But since this thread is active again, it's as good a place to ask as any ...
A while back, I asked for photos of another brand Universal dual-output PLL LNBF.
Needed pictures of the sealed metal module just under the plastic shell.
Two members responded immediately, to my surprise.
I wanted to know the diameter and length of the feed tube (waveguide) between the back of the scalar and the larger LNB body.
The idea was to cut off the scalar, thread the tube, and screw it into an Invacom AF120 scalar, and use it on a BUD for Ku only.
Didnt look promising (well, not easy).
Since then, I've come up with a different plan, to maybe bolt two GeoSatPro PLL Standard LNBs to an ortho feed.
Single outputs would be fine; Standard 10750 LO would be preferable.
But to know if the idea has an easy mechanical solution, I would like to see this PLL LNBF without plastic shell.
If anyone has one apart, could you measure waveguide (outside) diameter and length, please?
Thanks
I almost started my own thread last week.
But since this thread is active again, it's as good a place to ask as any ...
A while back, I asked for photos of another brand Universal dual-output PLL LNBF.
Needed pictures of the sealed metal module just under the plastic shell.
Two members responded immediately, to my surprise.
I wanted to know the diameter and length of the feed tube (waveguide) between the back of the scalar and the larger LNB body.
The idea was to cut off the scalar, thread the tube, and screw it into an Invacom AF120 scalar, and use it on a BUD for Ku only.
Didnt look promising (well, not easy).
Since then, I've come up with a different plan, to maybe bolt two GeoSatPro PLL Standard LNBs to an ortho feed.
Single outputs would be fine; Standard 10750 LO would be preferable.
But to know if the idea has an easy mechanical solution, I would like to see this PLL LNBF without plastic shell.
If anyone has one apart, could you measure waveguide (outside) diameter and length, please?
Thanks
- Status
Similar threads
