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Review: DMS VBOX DP710 | SatelliteGuys.US

Review: DMS VBOX DP710

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Shawn95GT

Tivo fanatic
Original poster
Supporting Founder
Feb 9, 2005
2,278
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Phoenix, AZ
Let's start with:

What is a VBOX DP710?
Basically, it is a translator between DiSEqC 1.2 commands and a 36v linear actuator.

Why would anyone need that?
So you can operate a polar mount with your DiSEqC receiver! Many of the 1M and larger dish owners are turning to polar mounts for more reliable / robust motoring of these heavier dishes. It also lets a person move a BUD via a DiSEqC receiver.

From the DMS site:
Features:
Compatible with DiSEqC 1.2 Receivers
Control with your DiSEqC 1.2 Receiver Remote
Front Panel Control
Easy Operation
Quick Installation
Fine-tune Function for better Reception
Sort Circuit and Overload Protection
Anti-Noise Circuit to avoid miscounting
Software Limits Protection
Re-Synchronize Function
180 H-H Mount Compatible


Specifications:
Input Voltage 110VAC, 60Hz
13/18VDC (via Coax Cable)
Output Voltage 13/18VDC
36VDC
Output Power 60 W
Maximum Current 3 Amp
Power Consumption 5W (Standby)
90W (Maximum)
Position Memories 28
Protocol DiSEqC 1.2
Operating Temperature 5ºC to 40ºC (41ºF to 104ºF)
Storage Temperature -20ºC to 60ºC (-40ºF to 140ºF)
Dimensions (WxHxD) 1.6Kg (Net), 1.8Kg (Gross)


What's in the box?
Surprisingly, not much. You get the VBOX itself and a manual. This unit does not have a remote. Everything* happens via your DiSEqC 1.2 capable receiver.

*I say 'everything' but there are manual controls on the VBOX to move the dish E and W as well as a power switch.

Hooking it up
The VBOX itself sits right at your receiver. If connects to the receiver just like a DiSEqC motor (SG2100, HH90, etc) would, between the receiver and LNB. You only you need it indoors so that you can plug it into AC power.

Aside from the Coax connection, on the back of the VBOX there are 4 spring terminals for the actuator wiring. The connections are + & - for the actuator and + & - for the sensor.

This does mean that you need to run wires for the actuator from the dish to the receiver. In my case I bought a length of 'Satellite Ribbon Cable' which also includes the wiring to control the skew servo on my C/Ku feedhorn.

Using it
My receiver is a Pansat 3500s. The dish is a Winegard 5' mesh on a polar mount. I have an 18" actuator moving the dish.

Moving the dish East and West with 1.2 commands via the receiver has proven to be fairly useless. If I command the dish West it just keeps swinging until another command is issued or it hits a limit. I'm not sure if this is what the Pansat is commanding or just how the VBOX responds to it's inputs. What I ended up doing was assigning a position number on the Pansat and then moving the dish via the controls on the VBOX. With the E/W arrows on the VBOX I found it easier to nudge the dish around to get it peaked. Once peaked I could save the position on the Pansat and the VBOX will acknowledge this by displaying the position number that was just saved. Position 27 will show as 'P27' on the VBOX.

I saved several positions and the dish promptly swings between sats just as you'd expect it to. Very slick! It also moves VERY fast as compared to my Primestar / SG2100 combo.

What could be Improved?
1. I don't like the spring clips on the back of the unit. I managed to break one of them mine the first time I set it up. I was able to snap it back together but it comes apart pretty easy.

2. What would be REAL nice is if a new version of the VBOX was available that would mount out at the dish. This may be too specialized to the FTA / Baby BUD market but not having to string ribbon cable back into the house would be a BIG plus for 1.2M dish guys or even BUD owners using voltage switched LNBs.

3. More positions. This is probably more a limitation of the DiSEqC standard than the VBOX but 27-49 isn't quite enough for me to store a position for every sat I can see. I'm hoping that I can re-map 1-26 via software as was suggested in the forums here.

More Pics to come.

<edit>
As many here have reported, mine also seems to have the dreaded 'losing positions' problem. It's too bad. It started after I started assigning DiSEqC 1.2 positions to numbers 1-27. I noticed it losing positions as I stared at 121W and headed East through 72W.

The problem may be related to the dish hitting the east limit and or the fully retracted position on the actuator.

As soon as I'd tune to a satellite that I had set to positions 1 -27, the dish would go full east (fully retracted). My guess is that maybe the VBOX stops counting at some point close to fully retracted.

To fight this off I would tune to the sat and 'catch' the actuator by hitting the 'move West' button on the VBOX. I will be experimenting some more to see if keeping the positioner off the limits helps the VBOX keep it's memory.
</edit>
 
Last edited:
Shawn,
I am glad to hear that the vbox dp710 is working for you. I could not get one to work with my setup. The first one i got was defective and the second one kept loosing satellite positions, quickly. I am going to grab a vbox II, it is more expensive, but from what i have read on other forums they are reliable and will work with almost any actuator.
 
Hi Shawn95GT, as you know I have been using the VBox too for about a month. It was working great until a couple of days ago. Maybe because I added more sats?? I do not know.

The problem I am experiencing is that after saving ALL position (from AMC12 to SatMex) some times when I move from one sat to another it kind of moves a little more or less, which then screws the other positions. In other all the positions get off focus by little. It is kind of a pain because then I have to remap them all. Let me know if that happens to you too.

I have a pansat 3500S, 10 feet BUD.

By the way, I also lost one of the springs. I have to get one from a pen to fix it :D
 
Kelly,
I had 26 sats dialed in, which is within the vboxs limits. For me it took under an hour of swapping sats (i put it thru some rigorous testing) before i would start loosing positions.
 
drhydro, I had all sats saved from 27 to 49. And when moving from one sat to another I know when It will disalign because the VBox will make a different click noise (like twice).

Were you able to fix it? Or that is why you would go to the VBOX II?

Maybe saving less satellites would fix it.
 
kelleyga said:
drhydro, I had all sats saved from 27 to 49. And when moving from one sat to another I know when It will disalign because the VBox will make a different click noise (like twice).

Were you able to fix it? Or that is why you would go to the VBOX II?

Maybe saving less satellites would fix it.
Hehe - I know exactly the noise you speak of. sometimes just changing channels I'd hear the VBOX do the short click.

I plan on having mine setup a little more permanent by this weekend so I'll really be able to torture test it.

One thing that REALLY messed mine up was one of the sensor wires came out of the back of the VBOX (did I mention I hate them spring clips?). This dorks the counts which pretty much makes for a day of re-saving sat positions.

In the manual it talks about a re-sync feature but this seems to be per receiver (and I havent found it on the Pansat).

I also forgot to mention that 'go to reference' with the VBOX goes to my East Limit vs TS (which I guess makes sense since the VBOX wouldn't know where TS is).

I'll beat up on mine some more tonight. If I start losing positions I think my money would be better spent on a DSR 922 - lol.

Shawn
 
I tested mine for a few days before deciding it just wasnt going to work for me. I will admit i really torture tested it, repeatedly going from one end of the arc to the other, with lots of stops in between. The funny thing is it would work for a while, then all of a sudden start loosing sat positions with no discernable pattern.
 
same problem for me. It will work for a while and then starts shifting left or right and screws everything.

Guys, does the old receivers have the same problem?
Do you think an update on firmware to the Pansat may fix it? Because it is the pansat sending the signal and where to move right?
 
kelleyga said:
same problem for me. It will work for a while and then starts shifting left or right and screws everything.

Guys, does the old receivers have the same problem?
Do you think an update on firmware to the Pansat may fix it? Because it is the pansat sending the signal and where to move right?
As far as I can tell, the Pansat just sends a P# to the VBOX and the VBOX handles all the counts.

You'd think the older receivers would have the same problems.

I wonder if these symptoms are due to the reed type actuators vs the more expensive ones.

I'm using the $20 special one that a bunch of us on here picked up.

I'll report back if these symptoms come up for me.

Shawn
 
A couple of months ago, I bought a used 'Geotrack' diseqc 1.2 actuator and polar mount from Cascade. Works dandy with my Pansat 2700. One cable does all, and judging by the power of the thing, I'm sure it would move a 4' dish no problem! It moves by 40" P* dish (with it's original very heavy mount) with ease.
 
Shawn95GT said:
I wonder if these symptoms are due to the reed type actuators vs the more expensive ones.

I'm using the $20 special one that a bunch of us on here picked up.


Shawn
Shawn,
The vbox had no problem in reading pulses from the reed switch in my actuator, it just started loosing positions. I could move it back manually to the count # the position is stored at, and the sat would be right there. Very strange behaviour.
 
What would be the drawbacks of using an old receiver with the Pansat 3500S and trash the VBox? Would that work.

I just clear all setting in Pansat and Vbox and started all over again storing sats and AGAIN the VBox looses positions, it either moves more or less when going back to other sats.
 
kelleyga said:
What would be the drawbacks of using an old receiver with the Pansat 3500S and trash the VBox? Would that work.
I concidered that but in my case the primary use was going to be via the Pansat. If I can make the dish moving transparent then that is a big plus for me.

On my HTS system 20 there isn't really a way to add sats, you just have to enable or disable what's there. I've found the the 'old' receivers aren't as user friendly.

The 4DTV boxes don't look too bad - but for the $$ they better be nice :).

Shawn
 
Shawn I just called PSB shop where I bought my VBox and a lady told me that she was aware some other people was having the same problems. So, I do not know what it could be, but it sucks, it is pretty good while it works ok.
 
kelleyga said:
Shawn I just called PSB shop where I bought my VBox and a lady told me that she was aware some other people was having the same problems. So, I do not know what it could be, but it sucks, it is pretty good while it works ok.


The lady that anwered the phone told you she knows very little about the V-Box and suggested if you were having problems you should run it by me.

You were the one that mentioned SatelliteGuys and that some people were having trouble with the V-Box.

Just for clarification :)
 
Well, I was refering to the lady that just answered my call about 20 minutes ago. She was explaining to me that she new there were some issues with the VBox and that it will not work ok sometimes but she did not know why. She said she will have you call me back. I was just trying to find out if you guys knew of the issue and if there was a possible solution.
 
SORRY if I offended you in any way. It was never my intention. Nor was my intention to suggest the VBox problem is related to you guys.

I also want to clarify I had always had the best customer service and attention from psbsatellite.com. One of the best I have expirienced with.

I was just trying to get more info and let the other guys know what I can find.

Sorry.
 
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