I've been trying to get my old TSC2 (no radio) to hook up with my cell phone. This is to get corrections from the County Surveyors RTN.
The instructions seem pretty clear how to do it. I've tried a number of ISP's both paid and free using access numbers (yes, it's dial-up). Each time the receiving modem cuts off the connection. I've called the outside modem directly and it makes the correct fax transmitting sound, so I know it is working.
The bluetooth method is what I am trying to use; less cables to have to deal with. Which is where I think the weak link is. When I connect from the TSC2 to the phone using bluetooth to pair with it, the services available are [Serial] and [Bluetooth}. So it appears to be the correct type of bluetooth, not like the IPhone bluetooth (no DUN).
The phone is an older Samsung AT&T model. But not sure if it has the right protocols necessary for what I need it to do (SPP ?).
Any help would be much appreciated. Thanks.
I haven't used a phone for VRS in a long time, but I remember I had to call Verizon and get a data plan of some sort hooked up... something about data packets maybe? FWIW, I use a mifi card and/or my android wifi hotspot now and that works a lot smoother!
Could it have something to do with the dial-string. :-S
I found this PDF from our own Glenn Borkenhagen helpful when I was trying to get ours to work.
I suspect it is something with either the phone or AT&T data plan that I have. Either way I ordered one of these (USB Modem) last night from WallyWorld. If nothing else it will give me something to verify the phone issue against.
I can also use it to prop up my tablet if it doesn't work....:-/
Thank you Zapper. Most of that I have tried, some I have not. I will spend the next hour or so giving it the ol college try. Really nice documentation.
Thanks again.:good:
You're welcome! (And thanks to Glenn, too.)
That's what I like about this board. As Brad Ott says, "Beer Leg dot com ROCKS!"
The PDF above is a great resource for the Bluetooth DUN. However, you also need to make sure two things...
1. The phone is tetherable and capable of Bluetooth DUN.
2. Bluetooth DUN is still available in your area. In our area both AT&T and Sprint have discontinued this and hot spotting/midi/sim is the only way to go.
Well I knew about Verizon not being able to do DUN any more. But AT&T was a bit of a shock. I took the SIM card out of my iPhone and put it in my wifes Samsung but both are AT&T phones.
So it's beginning to look like I'll have to hang my hopes on the USB modem that I ordered. I'll have to get a different SIM card and a mini SD card to make it all work.
The is also a VPN connection on the Settings - My Network screen.
Not sure if that will be useful, but I'll look into it.
What gets me is that the the system is so out-dated now. I hear others are using much more modern networks.
One thing to keep in the back of your mind when using this type of setup. Voice calls have priority over Data connections. When you have an active data connection going, and the mobile telephone receives an incoming call, the mobile phone WILL DROP the data connection to answer the call. Even if the RTK user elects not to accept/take the incoming phone call, let it go to voice mail, it's too late, the mobile phone drops the data connection. The RTK User will have to manually re-connect the mobile phone to the OCRTD Network. On the HH data collector > Network Disconnect, then > Network Connect again.
Reach out to the OCRTD Administrator ask for some help, (Tips & Tricks.) I know these guys very well, I used to work @ OCS there for 11 1/2 years, great bunch of Land Surveyors, Top notch crew there.
Just may be time to invest in a new HH Data Collector if you're going to be a NTRIP RTK Rover surveyor on a regular basis. Any of the new HH DC's have built in WiFi and Internal GSM Modems with a SIM card slot, Your life will be a lot less frustrating, more productive, less stressful, just my 2 cents.
-BbB B-)
I am not sure if this is still the case, but the USB modems used to need a software package install on the hardware to which the USB will be connected to control the connection, etc. I did not see in the specifications of your selected USB modem that the software is compatible with a mobile OS, typically they are made for full Windows OS, not mobile.
> Just may be time to invest in a new HH Data Collector if you're going to be a NTRIP RTK Rover surveyor on a regular basis. Any of the new HH DC's have built in WiFi and Internal GSM Modems with a SIM card slot, Your life will be a lot less frustrating, more productive, less stressful, just my 2 cents.
>
> -BbB B-)
I have a call in to the OC guys now (actually an email). I'm sure they are aware that many carriers are dropping DUN. Or DUN that will work with any cell phone like it used to. So have to assume they have a backup plan.
A tri-band usb modem that operates on multiple carriers - USA and abroad sounds like a viable option. Since they can be had for less than 50 buck I figure its worth the risk.
Heck I spend more than that on dinner. 😛
Just need to figure out how to interface it to the OC system.
I would love to upgrade to a newer DC, but that is on my Christmas wish list. Pardon my ignorance but, what is an HH DC? Will it work with any receiver?
Thanks.
I am worried about that too. But I just said in a post that for 50 bucks it's worth experimenting with. I can use it for an old laptop if nothing else, or return it.
There are a lot of companies that have Dial-up service. Yet few, if any, will work with a cell phone anymore. It's all being used as a backup internet service or to those areas of the country that don't have any broadband yet. Commercial use is going away.
HH DC = Hand Held Data Collector
Like GNSS in general, too many Acronym's
-BbB B-)
A Mifi device is the way to go. Using Wifi make these problems go away, and you can use it for other internet connectivity.
> One thing to keep in the back of your mind when using this type of setup. Voice calls have priority over Data connections. When you have an active data connection going, and the mobile telephone receives an incoming call, the mobile phone WILL DROP the data connection to answer the call. Even if the RTK user elects not to accept/take the incoming phone call, let it go to voice mail, it's too late, the mobile phone drops the data connection. The RTK User will have to manually re-connect the mobile phone to the OCRTD Network. On the HH data collector > Network Disconnect, then > Network Connect again.
>
> Reach out to the OCRTD Administrator ask for some help, (Tips & Tricks.) I know these guys very well, I used to work @ OCS there for 11 1/2 years, great bunch of Land Surveyors, Top notch crew there.
>
> Just may be time to invest in a new HH Data Collector if you're going to be a NTRIP RTK Rover surveyor on a regular basis. Any of the new HH DC's have built in WiFi and Internal GSM Modems with a SIM card slot, Your life will be a lot less frustrating, more productive, less stressful, just my 2 cents.
>
> -BbB B-)
Just utilize the UHF radio in the RTK head. Purchase an RTK Bridge (like the BNB "M3 RTK Bridge" and your set. You program the M3 RTK Bridge online with all the login data and it handles logging in, etc. the corrections are then sent via its serial cable to your existing UHF radio.
