9 replies to this topic

[ims]

If somebody working with this - what is your experience ?

 

 

For me it would be cheap solution for T-90 and quad LNBs ... 

 

Specifications:
Model: DS81  ( as GST-8101 too)

Material: Zinc & chrome
Size: Approx. 117 * 66 * 17mm
Insertion Loss: 3(dB)     
Isolation : 20(dB)     
Return Loss : 8(dB)     
Normal Working Voltage : 12-20(V)
DC Power Consumption : 10(mA)
DC Max Power Passing : 500(mA)
 

 

Attached Files

•  DiSEqC8in1.PNG   243.25KB   8 downloads

[WanWizard]

According to Huevos it should work fine:
 

In advanced tuner mode -> DiSEqC mode 1.1. You address an 8 way switch using Uncommitted DiSEqC command: Inputs 1 thru 8. And set Committed DiSEqC command to: None.

[ims]

Directly this model?

[WanWizard]

No mention of a specific model, just in general about 8x1 (as Enigma in simple mode only supports ABCD).

[Erik Slagter]

I have been using a 8-to-1 uncommitted switch for years. Not exactly this one, but no problems. It had several operating modes, where you could configure it to use DiSEqC 1.0, 1.1 or 1.2 (emulates rotor). I selected 1.1 of course.

 

I am now completely addicted to my JESS switch 

[ims]

I am now completely addicted to my JESS switch 

I don't have the capacity to go with so many cables from the roof...

 

 

This 4 pieces are for $14,30 (including shipping). I hope, it will works.

[jpuigs]

Be carefull when working with diseqc switches and Twin/Quad LNBs.

 

Some (or all?) Twin / Quad LNBs give signal to outputs although they all aren't powered.

 

Let's imagine you have a Quad Universal LNB, and it is connected 4 receivers.

 

3 of them are in standby, and it's suposed that they don't send voltage to LNB, but one receiver (not yours) is ON and sends 14v to LNB, so it wants vertical low band.

This vertical low band signal may appear on ALL 4 outputs of  LNB, although 3 of they are OFF.

If another receiver gives LNB a different voltage (14v 22 KHz), then LNB will send this desired band to that output.

 

The problem comes when one of these outputs is attached to a diseqc switch, and on that receiver you don't want this LNB signal, you want another input.

Let's say that Input 1 from diseqc is attached to that QUAD LNB (astra 19E), and input 2 is attached to a single dish pointing to 13 East.

Another receiver is powered, so Quad LNB is working and sending signals to all outputs.

Your receiver want HotBird 13 East, so swicth will connect input number 2, but If that switch hasn't got a good isolation between inputs, the undesired signal which comes from quad (input 1) may interfere with input from 1 and you may have problems receiving lower power signals.

I had this problem some years ago using twin LNBs.

 

I changed the switch to a Spaun which had been told that it had better isolation, and problems dissapeared.

Edited by jpuigs, 4 June 2020 - 20:02.

[Erik Slagter]

 

I am now completely addicted to my JESS switch 

I don't have the capacity to go with so many cables from the roof...

 

This 4 pieces are for $14,30 (including shipping). I hope, it will works.

That's definitely a good buy.

 

I have the JESS switch about 1.5 meters from the dish. I am using "quad" cables, cables that have four cores. Otherwise it would be next to impossible to do, 8 quattro LNB's = 32 cables 

Edited by Erik Slagter, 4 June 2020 - 20:08.

[Youto]

@ims, when you search in the history in the dutch forum then you can found my topic about exactly the same switch. Ans I mean exactly the same. I have two pieces of this. Ordered by aliexpress. 4 or 5 euro a piece. The most reactions were negative, watch out for cheap rubbisch from china, it's to cheap for that kind of products, and so on. But I am using them now for almost one year end so far so good. It works good and no problems at al. But I don't use all the 8 connections, but only 3. Two in and one out. The first in is a tripple astra 1,2,3 lnb and the second in is a single lnb on hotbird. I read somewere here above the warning not use a multi lnb but I have no problems with it. Only in the beginning I have some problems with the settings in the box. After a while and reading good what they mean in the explainations that also come to a good result. So, a late reaction but I hope that I helped you with it. Succes anyway.

[abi211]

If somebody working with this - what is your experience ?

 

 

 

For me it would be cheap solution for T-90 and quad LNBs ... 

 

Specifications:
Model: DS81  ( as GST-8101 too)

Material: Zinc & chrome
Size: Approx. 117 * 66 * 17mm
Insertion Loss: 3(dB)     
Isolation : 20(dB)     
Return Loss : 8(dB)     
Normal Working Voltage : 12-20(V)
DC Power Consumption : 10(mA)
DC Max Power Passing : 500(mA)

 

About 10 years ago I replaced about 5 similar cheap switches because always had a problem with the signal.

 

Then I have did research and decided to buy Centauri 8/1 switch (below link) which I have installed almost 10 years and never had a problem in my T90 dish.

 

I would strongly recommend this switch whoever have problems with cheap switches.

 

Bye,

 

Edited by Frenske, 12 September 2020 - 19:08.
I removed the commercial link + changed the layout of this message as all appeared to be quoted. Even your own reply.