IF AMP to boost signal along 30 meter cable

[al_madhi]

Hi guys The length of the coaxial-cable is 30 meter long , And I am planning to use an IF Amplifier ( ALCAD ) in order to boost the signal and to compensate for the losses of the impedance of the cable >

What is the best way to connect the AMP :-

1 - At the receiver-end

Or 2 - At the LNB at the top


Any thought you would have be greatly appreciated .


Best Regards

 

[PSB]

I would NOT install any kind of amp. I would get quad shield cable or even RG11 before I would ever install an in line amp. Over the years I have removed (and fixed the problem) MANY more amps than I have ever used.

Just my 2 cents worth!

 

[ken2400]

PSB is right on with this one too. I would add that amps can add noise to the signal and need to be maintained.

I would NOT install any kind of amp. I would get quad shield cable or even RG11 before I would ever install an in line amp. Over the years I have removed (and fixed the problem) MANY more amps than I have ever used.
Just my 2 cents worth!

 

[gizzer777]

Hi guys The length of the coaxial-cable is 30 meter long , And I am planning to use an IF Amplifier ( ALCAD ) in order to boost the signal and to compensate for the losses of the impedance of the cable >
What is the best way to connect the AMP :-
1 - At the receiver-end
Or 2 - At the LNB at the top
Any thought you would have be greatly appreciated .
Best Regards

As PSB said...not recommended! It will boost the noise along with the signal!
Jeff

 

[Mr Tony]

isnt 30 meters like 100 feet? (my metric conversions suck)

100 feet you wouldnt need an amp...I have a run of 175 on one and the signal is still great

 

[Anole]

My limited experience with amps wasn't good.
For only 30m, I would suggest in this order:
1) appropriate coax
2) better LNB
3) a bigger dish, if you still need more signal.

 

[al_madhi]

thanks to all members who replied to my thread

All agreed that a 30 meters long cable is not that long to insert an amplifier to amplify the signal It may distort the signal than to amplify it .

Anyway There is a proverb ( saying ) tells that " Experiment is the best proof"
I connect the AMP at the top near the LNB and there was no change in the signal strength , But at the receiver-end , The signal level increased from 62% to 78% And the signal Quality icreased from 74% to 86% .

As I mentioned in my thread AMP beteen two brackets ( ALCAD ) this is the name of the manufacturer of this AMP . It is a TV/SAT Indoor Amplifier From the Technical Leaflet It has one input from the LNB and Four outputs for four receivers downstair .
Frequecy Range : Band ( MHz) for TV ( 47-862) for SAT ( 950-2150 )
Gain ( dB ) for TV ( 22 +/- 1 ) for SAT ( 25 +/- 2 )
Adjudtable Gain ( dB ) for TV ( 16 ) for SAT ( 13 )
Fixed Equalization (dB ) for TV ( 3 ) for SAT ( 8 )
Isolation ( dB ) for TV ( > 13 ) for SAT ( > 9 )
- -

Any comments on this AMP .

Best Regards

A.M.AL-MADHI

 

[gizzer777]

happy for you!

Glad it is working out for you! I would suggest if you ever have a problem...look there first!

I have seen them work sometimes then go poof along with the signal...Hopefully yours will continue to work for you!

regards
Jeff

 

[sksatellite]

A good quality coaxial cable can let you gett he signal up to 300' if not at least 250'. I did few long run cable for customer using belden cable which is at least twice the cost of the $39.oo from china.

 

[al_madhi]

A good quality coaxial cable can let you gett he signal up to 300' if not at least 250'. I did few long run cable for customer using belden cable which is at least twice the cost of the $39.oo from china.

thanks sksatellite for reply

the cable I using It is a Belden cable , the reason I am using this AMP because it amlifies the signal and distributes the signal to other four receivers the AMP has one input from the LNB and four outputs for four receivers , but I am using one receiver at a time the others are off m all receivers in one room .


Best Regards

 

[gizzer777]

I for one thought it was

thanks sksatellite for reply
the cable I using It is a Belden cable , the reason I am using this AMP because it amlifies the signal and distributes the signal to other four receivers the AMP has one input from the LNB and four outputs for four receivers , but I am using one receiver at a time the others are off m all receivers in one room .
Best Regards

So it is a distribution amp!!! I thought it was one of those little in-line jobs! Distribution amps usually have better noise rejection and specs and is needed when driving multiple TV's. I have to use a little Motorola for my indoor Terk powered Local antenna...it does well there and unless I wanted an bunch of separate antennas...was needed

BELDEN IS THE GOOD STUFF!
best of luck....
Jeff

 

[ken2400]

I agree with the experiment idea. If you have time try doing a blind scan with other sats (with and without the amp) to see what results you get. I would also be interested in the results of say a 1 meter cable and no amp.

Thanks for the feedback.

thanks to all members who replied to my thread
All agreed that a 30 meters long cable is not that long to insert an amplifier to amplify the signal It may distort the signal than to amplify it .
Anyway There is a proverb ( saying ) tells that " Experiment is the best proof"
I connect the AMP at the top near the LNB and there was no change in the signal strength , But at the receiver-end , The signal level increased from 62% to 78% And the signal Quality icreased from 74% to 86% .
As I mentioned in my thread AMP beteen two brackets ( ALCAD ) this is the name of the manufacturer of this AMP . It is a TV/SAT Indoor Amplifier From the Technical Leaflet It has one input from the LNB and Four outputs for four receivers downstair .
Frequecy Range : Band ( MHz) for TV ( 47-862) for SAT ( 950-2150 )
Gain ( dB ) for TV ( 22 +/- 1 ) for SAT ( 25 +/- 2 )
Adjudtable Gain ( dB ) for TV ( 16 ) for SAT ( 13 )
Fixed Equalization (dB ) for TV ( 3 ) for SAT ( 8 )
Isolation ( dB ) for TV ( > 13 ) for SAT ( > 9 )
- -
Any comments on this AMP .
Best Regards
A.M.AL-MADHI

 

[Tron]

Most distribution amps are made for use in CATV (Cable TV) systems and therefore have a lower frequency range (usually not above 1 Ghz). Satellite signals typically go up to around 1.4 Ghz or higher.

Does this amp correctly pass power to your LNBF? Another issue is that, just as with a splitter, you will be limited in polarity to what your master receiver is set on. Also, you should use DC blocks all but one of the receiver connections.

EDIT: Nevermind, I just read the stats you posted. That is an interesting piece of gear, I didn't know that distribution amps made for use with LNBFs were commonly available...

 

[al_madhi]

Most distribution amps are made for use in CATV (Cable TV) systems and therefore have a lower frequency range (usually not above 1 Ghz). Satellite signals typically go up to around 1.4 Ghz or higher.
Does this amp correctly pass power to your LNBF? Another issue is that, just as with a splitter, you will be limited in polarity to what your master receiver is set on. Also, you should use DC blocks all but one of the receiver connections.
EDIT: Nevermind, I just read the stats you posted. That is an interesting piece of gear, I didn't know that distribution amps made for use with LNBFs were commonly available...

Thanks Tron for reply

Please go back and read my reply to all members post # 7 , I mentioned all the technical spec of this AMP .

I use it for LNBFs for C-BAND And Universal LNBs for Ku-bands and works perfectly ( DiSEqc I/P # 1 Univ LNB , DiSEqC I/P # 2 LNBF (C-band ) DiSEqC I/P #3 Univ LNB , DiSEqC I/P # 4 LNBF ( C-band ) ) .