2 way power devider?

[koppi]

I came across this , in another satelite forum , it says "1 pin LNB to 2 recievers?' the rest I don't understand the language
2 way power devider>>


is this just a splitter ? or it replaces a dual LNB with 2 outs
anyone knows if it really works as it says "single out lnb to 2 recievers"
I am rather new to this , so I don't know............koppi

[digicon]

Re: 2 way power devider?

Its a 2 way splitter and not suitable for Satellite LNB use at all, if you need an extra feed then you should run one directly from the LNB on the end of the dish. If you only have a single lnb change it for a Twin or a Quad

[koppi]

Re: 2 way power devider?

Its a 2 way splitter and not suitable for Satellite LNB use at all, if you need an extra feed then you should run one directly from the LNB on the end of the dish. If you only have a single lnb change it for a Twin or a Quad

I suspected that, from the little I know , as you said you cannot connect 2 recievers from a single pin LNB
I asked about it becuase where I saw it (as explained in my 1st post here , I could not read and understand the language , indian, pakistan or something like that or whatever it was

thanks for your reply....koppi

[kalpikos]

Re: 2 way power devider?

Hello

I use a similiar like this splitter (3way) with F-connectors but not for satellite signal.

This is a tv aerial splitter and I use it for divide the signal of my tv antenna to 3 different tvs.

Here is a photo of a similiar product



As you can see there is a specific working frequency suitable for tv.
I´m not sure if this can be used for satellite signal

[fandm]

Re: 2 way power devider?

Hi those tv splitters have amplifiers in them to boost the signal from one too three,
What the effect would be on a lnb not tried, could someone try and post if there box still works after.

[josht5]

Re: 2 way power devider?

The effect will be that when you use one polarity on the Out1 .. you cant use the other polarity on the rest of the outputs . It's ok if all receivers use the same polarity .

[Mobley3]

Re: 2 way power devider?

Digicon has already answered this, these are not suitable in any way for Satellite use.
the Signal loss through the best of them is of the order of 3.5db, for most people that will result in Signal/Picture loss.

regards mobley3

[aplok]

Re: 2 way power devider?

...
As you can see there is a specific working frequency suitable for tv.
I´m not sure if this can be used for satellite signal

Hello

lnb downconverts the -frequency band received- block of frequencies to
a -lower block of intermediate- frequencies.

for astra:
frequency band received: 10.70 - 12.75 ghz
lnb output freq: 950-1950 1100-2150 mhz

so, if your splitter, with internal amplificator fits this output freq range
-as suggested on the pic-

this should be an idea to dig in and to test

read more at: --http://en.wikipedia.org/wiki/Low-noise_block_downconverter

enjoy

[koppi]

Re: 2 way power devider?

what made me start this thread and ask about this is because in the picture I posted (post # 1) says power devider
and the picture posted by Kalpikos (post #4 )says splitter
My problem was that I don't understand what was written in a language I don't recognize and know

Maybe it means nothing and they are both the same, but it will be interesting to know if it works on not

[kalpikos]

Re: 2 way power devider?

Hi

I found a 2-way Power Divider like the one of @koppi in first post.



This divider I think it's not for sat use but I'm not sure for what is about

Here is a description of this model

TRM Microwave announces the DL 22030 broadband 2-way Power Divider ideal for a wide range of wireless radio frequency microwave applications ranging from Amplifier combining & receiver dividing to antenna splitting, and is suitable for networks from VHF to S band. The electrical performance of this ferrite component operating in the frequency range of 20-3000 MHz is highlighted with an excellent insertion loss of 2 dB max, 18 dB min isolation, 1.5:1 max input VSWR and 1.5:1 max output VSWR. Amplitude and phase balance are +/- 0.5 deg dB and +/-4 deg respectively. Its power rating is 1 W and the compact package size (1.25" x .7" x .5") allows this extremely lightweight component to fit into space limited locations. Tested temperature range is -40 deg - +70 deg C. SMA connectors are standard.

I also found a better picture of the first power divider of @koppi

[Mobley3]

Re: 2 way power devider?

I think the first two lines of the description will tell you all you need to know. TRM Microwave announces the DL 22030 broadband 2-way Power Divider ideal for a wide range of wireless radio frequency microwave applications.

regards mobley3

[huston]

Re: 2 way power devider?

I helped a friend set-up a satellite dish in France . He had a terrestial antenna for French TV taking a single cable into the house. We found a 'one in/two out' unit called a 'Combiner' which we attached the TV and dish cables to the existing cable. Then on the inside of the house we reversed the connection with a second combiner . This gave him good quality french and UK channels.

[kalpikos]

Re: 2 way power devider?

...This gave him good quality french and UK channels.

Hi my friend

All these dividers and combiners can reduce significantly the signal.

This is normal, because all of they have looses and when you will add more than one of such as device the losses can be increased to a very high level.

Of course this has more influence to the sattelite signal than the terrestial signal.

[huston]

Re: 2 way power devider?

I guess there is always a balance between signal strength and ease of installation.