# Lgt-92 dr 7 **URL:** \ **Category:** Dragino\ **Created:** [February 1, 2021, 6:30pm UTC](https://www.thethingsnetwork.org/forum/t/lgt-92-dr-7/43617 "2021-02-01T18:30:56Z")\ **Posts on this page:** 12\ **Page:** 1
**Author:** ![mbdrlp](https://www.thethingsnetwork.org/forum/user_avatar/www.thethingsnetwork.org/mbdrlp/32/35697_2.png) [@mbdrlp](https://www.thethingsnetwork.org/forum/u/mbdrlp)\ **Post date:** [February 1, 2021, 6:30pm UTC](https://www.thethingsnetwork.org/forum/t/lgt-92-dr-7/43617/1 "2021-02-01T18:30:56Z")
Hi, I am trying to set my LGT-92 to the Data Rate 7. I am using the following commands: AT+ADR=0 AT+DR=7 But I have the message “ERROR: Not in Range” I can set up to AT+DR=4, after that I have this error message. Do you have an idea? ---
**Author:** ![shinebar](https://www.thethingsnetwork.org/forum/user_avatar/www.thethingsnetwork.org/shinebar/32/35697_2.png) [@shinebar](https://www.thethingsnetwork.org/forum/u/shinebar)\ **Post date:** [February 1, 2021, 6:46pm UTC](https://www.thethingsnetwork.org/forum/t/lgt-92-dr-7/43617/2 "2021-02-01T18:46:49Z")
I suppose you try to set the Spreading Factor? DR sets the Data Rate, so you have to use DR5: [LoRaWAN Data Rates - blog.dbrgn.ch](https://blog.dbrgn.ch/2017/6/23/lorawan-data-rates/) best regards Danny ---
**Author:** ![mbdrlp](https://www.thethingsnetwork.org/forum/user_avatar/www.thethingsnetwork.org/mbdrlp/32/35697_2.png) [@mbdrlp](https://www.thethingsnetwork.org/forum/u/mbdrlp)\ **Post date:** [February 1, 2021, 7:04pm UTC](https://www.thethingsnetwork.org/forum/t/lgt-92-dr-7/43617/3 "2021-02-01T19:04:07Z")
Indeed I talked about spreading factor. I want to set it to SF7 for TTN (not sure it will change anything…) ![image](https://www.thethingsnetwork.org/forum/uploads/default/original/3X/8/a/8a65b18e94f40e5d663acc5978a33317f2dbec80.png) No I better understand why I had an error! So I guess the best is to set the data rate to 13? Or there is a link between data rate and coverage? ---
**Author:** ![shinebar](https://www.thethingsnetwork.org/forum/user_avatar/www.thethingsnetwork.org/shinebar/32/35697_2.png) [@shinebar](https://www.thethingsnetwork.org/forum/u/shinebar)\ **Post date:** [February 1, 2021, 7:06pm UTC](https://www.thethingsnetwork.org/forum/t/lgt-92-dr-7/43617/4 "2021-02-01T19:06:03Z")
Just see the link: In EU for example SF7 corresponds to DR5 ![image](https://www.thethingsnetwork.org/forum/uploads/default/original/3X/6/0/609d7a132793f9eef0f15fd04ac1db45c40a1ff8.png) ---
**Author:** ![mbdrlp](https://www.thethingsnetwork.org/forum/user_avatar/www.thethingsnetwork.org/mbdrlp/32/35697_2.png) [@mbdrlp](https://www.thethingsnetwork.org/forum/u/mbdrlp)\ **Post date:** [February 1, 2021, 7:10pm UTC](https://www.thethingsnetwork.org/forum/t/lgt-92-dr-7/43617/5 "2021-02-01T19:10:40Z")
Yes but I have a US frequency 🙂 ---
**Author:** ![mbdrlp](https://www.thethingsnetwork.org/forum/user_avatar/www.thethingsnetwork.org/mbdrlp/32/35697_2.png) [@mbdrlp](https://www.thethingsnetwork.org/forum/u/mbdrlp)\ **Post date:** [February 1, 2021, 7:12pm UTC](https://www.thethingsnetwork.org/forum/t/lgt-92-dr-7/43617/6 "2021-02-01T19:12:05Z")
In you example why DR5 and not DR6? ---
**Author:** ![Jeff-UK](https://www.thethingsnetwork.org/forum/user_avatar/www.thethingsnetwork.org/jeff-uk/32/35697_2.png) [@Jeff-UK](https://www.thethingsnetwork.org/forum/u/Jeff-UK)\ **Post date:** [February 1, 2021, 7:14pm UTC](https://www.thethingsnetwork.org/forum/t/lgt-92-dr-7/43617/7 "2021-02-01T19:14:06Z")
If using in US on 915 then you have the 400ms limit or dwell time to consider and SF beyond 10 not an option…SF 7 allowed and just fine 🙂 and data basically the same… ---
**Author:** ![shinebar](https://www.thethingsnetwork.org/forum/user_avatar/www.thethingsnetwork.org/shinebar/32/35697_2.png) [@shinebar](https://www.thethingsnetwork.org/forum/u/shinebar)\ **Post date:** [February 1, 2021, 7:18pm UTC](https://www.thethingsnetwork.org/forum/t/lgt-92-dr-7/43617/8 "2021-02-01T19:18:23Z")
Hm. Because TTN is suggesting SF7BW125: **Data Rate** should be as fast as possible to minimize your airtime. `SF7BW125` is usually a good place to start, as it consumes the least power and airtime. ( [Limitations | The Things Network](https://www.thethingsnetwork.org/docs/lorawan/limitations.html)) - actually I never tried the 250kbit bandwith. So DR3 should be your choice 🙂 ---
**Author:** ![mbdrlp](https://www.thethingsnetwork.org/forum/user_avatar/www.thethingsnetwork.org/mbdrlp/32/35697_2.png) [@mbdrlp](https://www.thethingsnetwork.org/forum/u/mbdrlp)\ **Post date:** [February 1, 2021, 7:19pm UTC](https://www.thethingsnetwork.org/forum/t/lgt-92-dr-7/43617/9 "2021-02-01T19:19:42Z")
OK thanks I will try that ---
**Author:** ![mbdrlp](https://www.thethingsnetwork.org/forum/user_avatar/www.thethingsnetwork.org/mbdrlp/32/35697_2.png) [@mbdrlp](https://www.thethingsnetwork.org/forum/u/mbdrlp)\ **Post date:** [February 3, 2021, 8:41pm UTC](https://www.thethingsnetwork.org/forum/t/lgt-92-dr-7/43617/11 "2021-02-03T20:41:07Z")
It looks like if I set my tracker to SF7BW125, communication with gateway doesn’t work. I have always rxtimeout. Is it because the activation method is OTAA? With the adaptive date rate ON it works well… ---
**Author:** ![cslorabox](https://www.thethingsnetwork.org/forum/user_avatar/www.thethingsnetwork.org/cslorabox/32/35697_2.png) [@cslorabox](https://www.thethingsnetwork.org/forum/u/cslorabox)\ **Post date:** [February 4, 2021, 4:50am UTC](https://www.thethingsnetwork.org/forum/t/lgt-92-dr-7/43617/12 "2021-02-04T04:50:18Z")
> [@mbdrlp](#): > > Is it because the activation method is OTAA? You may not want to use OTAA for range mapping, or at least, if you do, you’re going to have to start out in range of a gateway so that you can get successfully registered. Beware that while OTAA and adaptive data rate (ADR - which you definitely do not want for mapping) are theoretically distinct, in practice many node stacks make assumptions which deeply intertwine them, such that OTAA without ADR may just not be an option for your node. ABP is probably simplest for mapping. ---
**Author:** ![mbdrlp](https://www.thethingsnetwork.org/forum/user_avatar/www.thethingsnetwork.org/mbdrlp/32/35697_2.png) [@mbdrlp](https://www.thethingsnetwork.org/forum/u/mbdrlp)\ **Post date:** [February 4, 2021, 11:45am UTC](https://www.thethingsnetwork.org/forum/t/lgt-92-dr-7/43617/13 "2021-02-04T11:45:39Z")
OK thanks I will try ABP in that case