TTIG : The Things Indoor Gateway

(Nograin) #569

well, go figure:

today i brought a different gateway (RAK2245) to where the triple-downlink-generating (ADR) node is sending. after starting it up it received the uplinks fine, no downlinks there - TTIG still returning triplets.

climbing up to the attic i found the TTIG (as others mentioned) is flashing it’s LED. checking it’s power supply i found it was a 1A, which i assumed might be a bit on the weak side, so i thought i’d try hooking it up to the raspi, which itself is powered with 2A only - but who knows … lo and behold - for several minutes the TTIG returned single downlinks only.

coming home now, opening the console for the two gateways unfortunately we’re back at triple downlinks from the TTIG. whereas the other gateway seems to sometimes try to take over the ADR-control and sends a downlink by itself instead - a single one i may underscore.


so yes. to me these triple-downlinks look like an issue of the TTIG (though being all but logical, as - as @cslorabox mentioned in another place - shouldn’t be able to “invent” downlinks by itself … but quite obvioulsy, something one could interpret like this is happening.

might bring the node home where i have “classic” TTG, curious if this would behave the same way.


(Nograin) #570

have you tried yet using a different / more powerful powersupply?

(Jac Kersing) #571

The TTIG does not put downlink information in the console, the back-end does. So I think the TTIG or the Semtech to Basic Station gateway software between the back-end and the TTIG is triggering strange back-end behavior.

@johan @htdvisser any idea what is happening? Is logging an issue on github for the V2 stack of any use?

(Krishna Iyer) #572

The TTIG with the Basic Station PF has it’s own scheduler which might be causing some issue here. Will investigate.


Just receive information from Allied Elect, that the TTIG are expected to ship in the USA on 24 April 2019. What odd, is they have only receive less that 40 order for the device… I expected to see a lot more orders in the USA.

(Iot Eric) #578

@trlafleur thanks for that info. I got the same date from them.

As to order quantity, we are way behind Europe with LoRaWAN adoption in the US. I like to think it’s because there are giant cell carriers with competing tech and lots of lobbying money in our perverse form of capitalism keeping adoption down. We are the David to their Goliath. The real reasons are probably far more complex. I am encouraged by the LoRaWAN evangelists I do know in the US, however. This community rocks!

(Lo Ra Master) #579

Today contact with customer service RS Netherlands. They told me that the TTIG Gateway will not be avaiable. No statement on future delivery options. It is not a good show to postpone again and again and at the end telling that the device is not avaible. I suggest that at all positions the RS logo and links are removed. The time for understanding is over. If we want to step into next maturity levels we have to deal with mature partners only. This means if you promise to deliver then deliver what you promise. Preferable on time.

Lots of post are tech driven in this post. I have seen posts that adressing non tech problems are often running into nowhere or even marked as ranting. It is clear that solving this kind of isseus can bring the system at a higher level. Bit banging a ESP with some radio device or eq will never do this job (altough also very important and interesting i must say).

What i miss is active drive to become more mature with the network. This means solve first level logistic and operational issues, first thing to do is to work on coverage. As soon as we take away al the indoor GW’s and single channel non LoRaWan compliant GW’s the TTN Map is almost empty…

I think we should work on that


Henk, haven’t seen you much here.

’ They told me that the TTIG Gateway will not be avaiable.’
what do you mean… or, how did you interpreted that statement ?

‘It is clear that solving this kind of isseus can bring the system at a higher level. Bit banging a ESP with some radio device or eq will never do this job’
nonsense, you apparently don’t understand the design goals and market for TTIG

’ What I miss is active drive to become more mature with the network. ’
seems you skipped a long time reading here wininghenk

So what’s your real problem now and what do YOU mean by ’ we should work on that’ ?
There are many other gateways for sale for many years … it’s not that TTIG is the only one if you really want to add value to the network… it’s the cheapest one with some known delivery problems.
This is just another rant imho.

(Jac Kersing) #581

I’ve spoken to them a few weeks ago and the statement was the same. In the mean time I had two of them delivered from RS and e-mail confirmation more will be shipped in June. So may-be customer service is mistaken?

What is stopping you? There are plenty of options available in the market so start a drive… WE are the network, not just the people in Amsterdam… So where do we start?

First you complain about availability of an indoor gateway and now you do not want to count them? You are confusing me.


Just installed a other TTIG (TTN-TTIG-02)
It is one from the get free from the event in Amsterdam. the owner send it to me, and have make the setup for him.
Again +1 off the totall from xxx is online :slight_smile:

In the main time i will modify it with a external antenne (so no warrenty). on the same way as above mentiond with a few foto’s. Bring the antenne connection outside the box with a SMA pigtail

This TTIG will moved to a office in amsterdam on the port side.

If I go work to it, i will take picture’s, and do some measurment’s on the antenne.

pictures - dropbox






I just add a link to this pdf file with the foto’s off the modify off the TTIG gateway use it with a external antenne.

Just use a standaard SMA pigtail

and now just use a standaard 868 mhz rubber duck antenne.


great pictures :sunglasses:

(Lo Ra Master) #585

Dear Jac, thanks for the reply. I like to respond on each bullet.

The first reply gives me hope that it will turn into good news, thanks for that!

The second one: Nothing is stopping me :slight_smile: I did not mention this in my previous message because it was not relevant at that moment. But for your information (and maybe others)
I am currently running 2 full TTN Gateway’s @ my office for research and supporting tech students. I am in the middel of a project placing one outdoor gateway on our highest building to improve coverage (> 60 meters above ground level). I think with that I contribute to the network as a member of the network (yes we are the network, I agree)

The last one: My (logistic) complain about the TTIG has nothing to do with outdoor coverage. This is a different issue. It was not wise from me to adress 2 issues in one message. This could indeed be confusing, i agree. Besides and apart from my proffesional interest in this technology I am also running some tests at home just because I like LoRa. For that kind of use the TTIG fit’s perfect, the product is promissing.

With kind regards

(Ud Lo Ra) #588

I think I will be the third in this thread voiding warranty :slight_smile: . How did you open it? Any difficulty or parts at risk of breaking? Thanks.

(Jeff Uk) #589

After leaving my ‘connected’ but none functioning unit on line for a long period with many resets and checking automatic updates in console and even leaving beta option ticked just in case I finally gave up today and figured as I was thinking of modding for external ant using sma pigtail as others above I figured start with the failed unit…was also thinking to check for loose connectors or re-seating the radio bd just in case. Voided warranty:



All seemed sound from mechanical pov so was about to power up the open bd to check for operation when I noticed one small detail!


Per other peoples images it looks like the device is mis-shipped or mis-labled or mis-manufactured with the zero ohm resistor in the US position vs EU! :frowning:

Guess I will have to try and relocate component over the weekend to see if it fixes problem (at same time as adding the external Ant :wink: )

So 5 x 868Mhz ordered, 4 delivered and functioning with one that looks like a 915Mhz…

  1. Remove the two gray end pieces with a small screwdriver.

  2. Below these two end pieces you will find two Phillips screws, unscrew them.

  3. Split the white parts of each other with a small flat head screwdriver. There are a few slots next to each other that easily come loose.

  4. Make room for the SMA connector in both parts on the USB connector side

  5. Drill a hole in one of the gray end pieces (USB side, there is already a marking on the back)

  6. Screw the SMA connector on the gray plate, perhaps use an extra ring for sturdiness.

  7. If you have the right pigtail you can simply swap the plugs of the antenna, and push the existing plug away between the print and housing.

Follow the photos It is easy

(Jeff Uk) #591

Gently pry of the grey top and bottom covers - you can see in pictures just posted there are 4 small lugs holding each in place - doesn’t take much to force/twist to remove You will then see 2 x T5 (very fine star) screws holding assy together - despite using correct screwdriver I managed to strip one of mine! :frowning:
remove, then with a small amount of force, starting at on end of side split you can leverage the halves apart - again 4 lugs hold together which can be forced apart with a little pressure

…he beat me to the post! :slight_smile:


and what cable length, 5 cm or 7cm or longer ?


you sure that’s ok ?? :sweat:


At leased 7 cm, but I had one off 10 cm, and bring the over lenght between print and the housing.