DMSS satellite support?

jotto

DMSS satellite support?
June 06, 2011 12:57PM

Registered: 12 years ago
Posts: 2

Will V-Bar support DMSS satellite receivers? It seems like all the new JR radios are using DMSS now.

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costas

Re: DMSS satellite support?
June 07, 2011 01:40AM

Registered: 14 years ago
Posts: 76

I guess this would require a small hardware revision in the main VBAR module as the DMSS satellite Rx's have a 4 wire connection.

An option may exist for a 4 wire to 3 wire adaptor [may be able to utilise existing Spektrum sockets on VBAR] depending on the format of the 4 wire interface that JR are utilising. More detailed info is required about the actual serial data connection before this approach could be even considered though.

Looks like JR have standardised on DMSS for their new radios so it will hopefully/probably just be a matter of timing as to when Mikado decide to support it.

Edited 2 time(s). Last edit at 06/07/2011 03:24AM by costas.

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Myrseth

Re: DMSS satellite support?
June 16, 2011 12:40PM

Registered: 13 years ago
Posts: 15

I hope Mikado choose to make this happen, either by a small adaptor to blueline or the like. New jr radios are delivered with DMSS everywhere but the states where Horrizon keeps modding them with DSMX.

Where I live I see a trend with people sick of sending their DX8 in looking towards JR so I believe we will see more and more JR around now. We also recently got a distributer here too.

I would love getting support for DMSS in vbar as I would like to stay with vbar on my helicopters, but I will not stay with DSM2 forever, and I will not go for DSMX. I feel uneasy flying with DSM2 with my 700 size helis.

Klaus Myrseth
Compass atom 500 FBL, 2X7HV FBL
Everything with VBar ofc winking smiley

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ulrich

Re: DMSS satellite support?
June 16, 2011 01:10PM

Admin
Registered: 18 years ago
Posts: 7,461

Currently i do not know anything about this dmss. JR is not very popular overe here with their new system.

Generally we will look into it as soon as we get the hands on the system, maybe a minimal support from JR is needed to implement the protocol correctly. Hopefully we get the permission. We alredy get the support from Futaba and Multiplex, so these are links that run very smooth. Spektrum is a bit more difficult, but its solved currently.

It depends if additional hardware is needed. In this case it will take some time to develop and produce adapters. If its only a wire harnes i.e. that that may be quicker.

so long ... Uli
http://www.vstabi.de

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tfagermoen

Re: DMSS satellite support?
June 17, 2011 08:40PM

Registered: 13 years ago
Posts: 5

The JR XG8 is now available in Norway, but I need DMSS support in the VBar before I buy it.
Keep up with the great work Mikado, so we can use the new DMSS radios with VBar soon.

Terje

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ATH

Re: DMSS satellite support?
June 28, 2011 10:47PM

Registered: 14 years ago
Posts: 18

Me too like to have the new JR XG8 radio, but I am held back until the V-bar can support DMSS.
I really hope you will be able to provide DMSS support for us in not too long.

Best regards
Arne

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chawki212

Re: DMSS satellite support?
July 07, 2011 08:08PM

Registered: 12 years ago
Posts: 6

Is there any news here?
will the DMSS work with VBAR satellite mode?

Cheers.

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jointer

Re: DMSS satellite support?
July 08, 2011 10:40PM

Registered: 13 years ago
Posts: 68

I am another one considering XG8 as next radio... waiting for sat support (i will not go back to standalone receiver + sat).

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busterboy

Re: DMSS satellite support?
July 20, 2011 11:06PM

Registered: 13 years ago
Posts: 321

Any news on this subject guy's please.:-)

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svl

Re: DMSS satellite support?
July 27, 2011 06:03AM

Registered: 12 years ago
Posts: 2

+1 for the dmss system support!!!!

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Vinger

Re: DMSS satellite support?
August 07, 2011 05:30PM

Registered: 12 years ago
Posts: 625

The DMSS satellite is not a satellite RX like we got to know the Spektrum ones, it is only used for telemetry data transmission. Currently using the XG8 and you HAVE to use a full separate DMSS RX with all the FBL units out there.

See http://www.jrpropo.co.jp/english/propo/dmss/products.html#ra01t

It is called a remote antennae with telemetry support. If you unplug it from the RX you get no telemetry data, BUT the RX still works perfectly with it's own two antennae.

Edit: Sorry my bad just found this

http://www.jrpropo.co.jp/english/propo/dmss/whats_dmss.html

Quote:
Reliability is built into the system!
Reliable remote antenna system

2.4GHz RF transmissions tend to be directional. To mitigate this characteristic, our full range receivers are equipped with dual path diversity antenna systems. Our addition of coaxial antennas enables the receiver to operate in any environment. The small remote receivers have a performance level equivalent to a full size receiver.

Edited 2 time(s). Last edit at 08/07/2011 05:37PM by Vinger.

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jointer

Re: DMSS satellite support?
August 09, 2011 07:56PM

Registered: 13 years ago
Posts: 68

Vinger, you should use classic receiver with Spektrum radios too.
The ability to use DSM2/X satellite receiver with Vbar is just clever use of the sats and i think it is not what Spektrum had in mind when they developed it.

Futaba went that way with SBUS.

So, i think it is possible to use DMSS the same way, someone only need to "crack" the protocol, as it happened with Spektrum and SBUS.

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ulrich

Re: DMSS satellite support?
August 17, 2011 03:26PM

Admin
Registered: 18 years ago
Posts: 7,461

Wow, JR seems to have found a way to make it close. With the integrated receiver without external bus system they seem to manage to make it impossible to use a single line or remote reciver solution.
The remote antenna includes a telemetry transmitter, but no full antenna. So it seems to make no sense to use these sats as full reciver replacement.
Sorry, this is a big step back for the JR eqipment against the spektrum solution and the futaba s-bus or other busses like the mutiplex M-link.

so long ... Uli
http://www.vstabi.de

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jointer

Re: DMSS satellite support?
August 17, 2011 06:41PM

Registered: 13 years ago
Posts: 68

Uli, you learned that how?
I expect the 4 lines to be gnd, power, serial line with channels and telemetry serial line.
But i do not know of course - i know person in Slovakia which want to look deeper into it and also make special telemetry modules for it, but he did not found time yet to do it.
But i think both Spektrum and Jeti protocols were well analyzed by some German users, so maybe someone from Germany with passion in this will know more?
A multimeter and osciloscope would give some basic idea.
Was enough for me to see what the Spektrum sats produce.

Edited 1 time(s). Last edit at 08/17/2011 06:42PM by jointer.

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chawki212

Re: DMSS satellite support?
August 28, 2011 08:25AM

Registered: 12 years ago
Posts: 6

Hi Uli,

Was there any contact with JR concernig let's say a release for DMSS sats?

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chawki212

Re: DMSS satellite support?
August 30, 2011 08:32AM

Registered: 12 years ago
Posts: 6

---

Edited 1 time(s). Last edit at 08/30/2011 08:41AM by chawki212.

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ulrich

Re: DMSS satellite support?
August 30, 2011 10:17AM

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Registered: 18 years ago
Posts: 7,461

No, no contact.

so long ... Uli
http://www.vstabi.de

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Acrow

Re: DMSS satellite support?
April 14, 2012 08:08AM

Registered: 12 years ago
Posts: 29

Are there any developments on V Stabi upgrading their products to support the JR DMSS satellites?

Regards

Acrow

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MrMel

Re: DMSS satellite support?
April 14, 2012 10:27AM

Registered: 17 years ago
Posts: 1,001

Ulrich & Co is in USA for the Dahl flightline event.
JR released satellites that actually have receivers in them now so now it's doable for sure.

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rcheliaviator

Re: DMSS satellite support?
April 26, 2012 11:26PM

Registered: 12 years ago
Posts: 78

Any news on the DMSS ? Looking to buy a new JR.

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costas

Re: DMSS satellite support?
April 29, 2012 12:45PM

Registered: 14 years ago
Posts: 76

Looks like single line DMSS is a possibility for the VBAR.

Skookum SK540 is supporting single line connection to JR DMSS receivers as per their following web page instructions....

http://www.skookumrobotics.com/wiki/index.php?title=DMSS_and_SK540_Connections

Edited 1 time(s). Last edit at 04/29/2012 12:46PM by costas.

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ulrich

Re: DMSS satellite support?
April 29, 2012 06:13PM

Admin
Registered: 18 years ago
Posts: 7,461

Maybe someone can try... Theoretically this may work.

But...

The Sats i already have seen does not have a external Antenna and are only used in Combination with a main reciver. Usually they are used to transmit Telemetry data. They man be capable of reciving a Signal from the Transmitter as well, but with a internal antenna only? I am not sure if this is a good idea...

so long ... Uli
http://www.vstabi.de

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MrMel

Re: DMSS satellite support?
April 30, 2012 03:23AM

Registered: 17 years ago
Posts: 1,001

http://www.jrpropo.co.jp/english/propo/dmss/details.php?hen=03452
With antenna

Edited 1 time(s). Last edit at 04/30/2012 03:23AM by MrMel.

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rcheliaviator

Re: DMSS satellite support?
April 30, 2012 07:40PM

Registered: 12 years ago
Posts: 78

The link above shows a RAO1TL the telemetry model. The one shown with the 8 channel reciever is a RAO1T shown as a receiver. Don't know what he difference is but both have 4 wires.

Edited 1 time(s). Last edit at 04/30/2012 07:40PM by rcheliaviator.

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MrMel

Re: DMSS satellite support?
April 30, 2012 07:42PM

Registered: 17 years ago
Posts: 1,001

If i have understood correct the newer with antenna is receiver too and the old is telemetry only
Unless they enabled receiver in the older one with the latest fw in the radio (i tested a while back and then there was no data coming back)

Edited 1 time(s). Last edit at 04/30/2012 07:43PM by MrMel.

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rcheliaviator

Re: DMSS satellite support?
April 30, 2012 08:13PM

Registered: 12 years ago
Posts: 78

With some kind of adapter you could make the new one work with the Vbar & the the sats as receiver.

Edited 1 time(s). Last edit at 04/30/2012 08:14PM by rcheliaviator.

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costas

Re: DMSS satellite support?
May 01, 2012 02:28AM

Registered: 14 years ago
Posts: 76

MrMel Wrote:
-------------------------------------------------------
> If i have understood correct the newer with
> antenna is receiver too and the old is telemetry
> only

This is what we need to verify - ie, is it actually a receiver or simply just a telemetry unit with a coax antenna for longer range?

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rcheliaviator

Re: DMSS satellite support?
May 03, 2012 03:06AM

Registered: 12 years ago
Posts: 78

Couldn't wait just received my JR DMSS. Nice radio just need to figure out the sat situation.

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costas

Re: DMSS satellite support?
May 03, 2012 07:12AM

Registered: 14 years ago
Posts: 76

Just out of curiousity, I downloaded the instruction manual for JR's XG11 Tx.

I found a section where it shows a typical installtion of the Rx.

Of interest - Note where the manual states "The remote antenna receives data and also feeds back to the transmitter." this is with refernce to the RA01T sat unit.

Also towards the end of the page it states again that the RA01T 'receives' data from the Tx.

jrdmssrxnotes.jpg

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MrMel

Re: DMSS satellite support?
May 03, 2012 07:15AM

Registered: 17 years ago
Posts: 1,001

It might be that it changed in the last firmware when they prepped the xg11 release.
I tested a xg8 a while back (older fw) and it was telemetry only, one cable was dead, no data at all.

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