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View Full Version : Installing a power inserter for my Jynx HD



publicsd
01-17-2013, 10:14 PM
Hello people,

In another thread someone knowledgeable and trustable (iq180 namely) highlighted the fact that the Jynxbox Ultra is underpowered when it comes to providing enough power to the LNB. Since I've fried 2 JB200s in the last weeks, I think both situations might be related.

I've looked around (i.e. googled) about power inserters and the setup seems somewhat complicated if you don't know which type of LNB you have or if your installation is non-standard. That's why I need your help.

First, the LNB. I have a 30" dish with a double LNB installed, aligned on 91 and 82 (beaver birds). It was installed 1 1/2 year ago by a BEV technician when I actually subscribed their service. While he was installing it I noticed that for each receiver he was installing a simple splitter near the receiver to split the signal to two tuners. He explained to me that they didn't need an external switch anymore because the LNB was able to switch by itself between both SD and HD signals (91 and 82). My problem today is that I don't know exactly which LNB he installed, and with all that snow outside I won't get on the roof soon to take a look. Any help on that matter (identifying the LNB, not going on the roof) would be appreciated.

Here's what the outside looks like: (I don't know if there's 4 connectors underneath though)
17399

Then, the installation. It's fairly simple, and that's the problem. I've got 2 coax cables that come from the antenna down into the house. Both were intended to each go directly to a separate receiver. I can basically plug a receiver to any of them and I'll get the signals from both birds. There's no ID whatsoever about which cable is plugged where on the LNB.

When I do the initial installation of the Jynxbox (after an update for instance), I have to specify that 91 is using Diseqc 1.0 Port 1, and for 82 I set it to Port 2. For both sats I get a Quality of 81 and Strength 85.

So, if I were to install a power inserter, what should I buy and where should I install it? Should I install an external switch as well? If so, which one?

Thanks in advance,

Pub

fn59
01-17-2013, 10:54 PM
Do you still have bell receivers hooked up to lnb? If so they supply enough power to lnb, no need for external switch if that's the only lnb you're planning on using.

publicsd
01-17-2013, 11:34 PM
Do you still have bell receivers hooked up to lnb? If so they supply enough power to lnb, no need for external switch if that's the only lnb you're planning on using.

No, they were leased so I've sent them back to bell.

Let's say I'd buy a used and cheap bell receiver and hook it to one of the two cables (see my original post), would that be enough to power the LNB on all ports?

iq180
01-18-2013, 01:43 AM
are you useing the jynx with 2 tunners or 1, if you are only useing 1 then you dont need the splitter, now as for the power supply
i think the power supply for the 44 switch is the best, now the power supply needs to be on the first port of the DPP LNB, the cable
you use on your jynx will hook up to the power supply, then you will need a short coax cable to go from the power supply to your jynx box, and thats it, very simple & easy.

Terryl
01-18-2013, 02:09 AM
That type of LNB only uses @400 mA of DC current, 90% of the FTA receivers out there can power this type of LNB without problems.

If your receive can not supply this amount of DC current, then the external DC power inserter should be used, but my experiments here have shown that some FTA receivers do not work too well with the DPP 44 power inserter inline, so a second coax should be used to power the LNB, it should go to the #1 receiver port on the LNB, the other receiver ports on that LNB will run the FTA receiver just fine.

publicsd
01-19-2013, 02:54 AM
are you useing the jynx with 2 tunners or 1, if you are only useing 1 then you dont need the splitter, now as for the power supply
i think the power supply for the 44 switch is the best, now the power supply needs to be on the first port of the DPP LNB, the cable
you use on your jynx will hook up to the power supply, then you will need a short coax cable to go from the power supply to your jynx box, and thats it, very simple & easy.

I only use one tuner, so there's no splitter. Reading your reply and Terryl's, I understand that I need to find which cable leads to port 1, as I have no clue whatsoever just by looking at the installation inside the house. Is there a way to find out without having to climb up to the antenna?

publicsd
01-19-2013, 03:01 AM
That type of LNB only uses @400 mA of DC current, 90% of the FTA receivers out there can power this type of LNB without problems.

If your receive can not supply this amount of DC current, then the external DC power inserter should be used, but my experiments here have shown that some FTA receivers do not work too well with the DPP 44 power inserter inline, so a second coax should be used to power the LNB, it should go to the #1 receiver port on the LNB, the other receiver ports on that LNB will run the FTA receiver just fine.

Well, since I have no idea which of the two cables (if any) leads to Port 1 on the antenna, would setting the power inserter in-line with my current connection at least provide the protection I need to avoid frying another tuner module? Basically, the image is crisp and I don't think I've been experiencing "power outages" on my LNB; my only concern is that I don't want my Jynxbox to do all the job when it comes to provide the necessary power to the LNB. I can't be sure that it's what caused my problems in the first place, but that's a darn good starting point IMHO.

Thanks for all these tech details by the way.

Terryl
01-19-2013, 03:09 AM
I only use one tuner, so there's no splitter. Reading your reply and Terryl's, I understand that I need to find which cable leads to port 1, as I have no clue whatsoever just by looking at the installation inside the house. Is there a way to find out without having to climb up to the antenna?


Usually the #1 port went to the closest receiver, or the one in the main part of the house.

Plug it in, it wont hurt anything (for a short time) then go to your receivers satellite settings, turn the LNB power off and see it your receiver looses signal, it will work or not, if it works your connected to the #1 port.

Also some of the older LNB's had power directing diodes, so if the main receiver was shut off the other could take over, you may not need to find the #1 port in this case.

publicsd
01-19-2013, 10:11 PM
are you useing the jynx with 2 tunners or 1, if you are only useing 1 then you dont need the splitter, now as for the power supply
i think the power supply for the 44 switch is the best, now the power supply needs to be on the first port of the DPP LNB, the cable
you use on your jynx will hook up to the power supply, then you will need a short coax cable to go from the power supply to your jynx box, and thats it, very simple & easy.

I noticed that there are many power inserters out there, with many voltage designations and designs. Is the power inserter for the DP44 foolproof when used with a DPP LNB? I just don't want to screw up the whole installation by plugging in the wrong device... :)

Terryl
01-20-2013, 05:57 AM
Max DC input voltage for a DP LNB is 22 volts DC, the output of the DPP power inserter is 20 volts DC, there should be no problems when used with DP LNB's.

publicsd
01-25-2013, 02:54 AM
Max DC input voltage for a DP LNB is 22 volts DC, the output of the DPP power inserter is 20 volts DC, there should be no problems when used with DP LNB's.

Well since I wasn't able to find a reasonably priced power inserter (cheapest I've found was 50$), I went with the popular workaround of hooking a derelict Bell 3100 receiver to the wire that - I believe - leads to Port 1 on the LNB. Max output is 750 mAh...

I hope it'll do the trick.

iq180
01-25-2013, 03:56 AM
Well since I wasn't able to find a reasonably priced power inserter (cheapest I've found was 50$), I went with the popular workaround of hooking a derelict Bell 3100 receiver to the wire that - I believe - leads to Port 1 on the LNB. Max output is 750 mAh...

I hope it'll do the trick.
that will work if it is on port 1 of the lnb.