# The hard RAK831 cafe part 1 **URL:** \ **Category:** RAK Gateways\ **Created:** [July 13, 2017, 6:54pm UTC](https://www.thethingsnetwork.org/forum/t/the-hard-rak831-cafe-part-1/8464 "2017-07-13T18:54:55Z")\ **Posts on this page:** 10\ **Page:** 17
**Author:** ![F\_Dam](https://www.thethingsnetwork.org/forum/user_avatar/www.thethingsnetwork.org/f_dam/32/47456_2.png) [@F\_Dam](https://www.thethingsnetwork.org/forum/u/F_Dam)\ **Post date:** [November 12, 2017, 1:08pm UTC](https://www.thethingsnetwork.org/forum/t/the-hard-rak831-cafe-part-1/8464/355 "2017-11-12T13:08:39Z")
With VAT + import taxes, wouldn’t this end up more expensive than the IC880a? ---
**Author:** ![kersing](https://www.thethingsnetwork.org/forum/user_avatar/www.thethingsnetwork.org/kersing/32/44777_2.png) [@kersing](https://www.thethingsnetwork.org/forum/u/kersing)\ **Post date:** [November 12, 2017, 6:34pm UTC](https://www.thethingsnetwork.org/forum/t/the-hard-rak831-cafe-part-1/8464/356 "2017-11-12T18:34:55Z")
No it can not. GPS is required to meet timing requirements. ---
**Author:** ![bluejedi](https://www.thethingsnetwork.org/forum/user_avatar/www.thethingsnetwork.org/bluejedi/32/44639_2.png) [@bluejedi](https://www.thethingsnetwork.org/forum/u/bluejedi)\ **Post date:** [November 12, 2017, 7:24pm UTC](https://www.thethingsnetwork.org/forum/t/the-hard-rak831-cafe-part-1/8464/357 "2017-11-12T19:24:13Z")
Current price of [RAK831 KIT](https://www.aliexpress.com/item/RAK831-LoRa-LoRaWAN-Gateway-Module-base-on-SX1301-433-868-915MHz-range-of-up-to-49200ft/32821411294.html) is €113.29, shipping is €4.82 making a total of €118.11. In the Netherlands the Dutch Customs will add 21% VAT plus €13 handling fee for the local parcel shipping company which makes a total of: €156. If you buy the [basic RAK831 (non-kit)](https://www.aliexpress.com/item/RAK831-LoRa-LoRaWAN-Gateway-Module-433-868-915MHz-base-on-SX1301-Wireless-Spread-Spectrum-Transmission-range/32832894046.html) version you can save €6 making the total €150. ---
**Author:** ![bluejedi](https://www.thethingsnetwork.org/forum/user_avatar/www.thethingsnetwork.org/bluejedi/32/44639_2.png) [@bluejedi](https://www.thethingsnetwork.org/forum/u/bluejedi)\ **Post date:** [November 12, 2017, 7:27pm UTC](https://www.thethingsnetwork.org/forum/t/the-hard-rak831-cafe-part-1/8464/358 "2017-11-12T19:27:25Z")
When stationary gateway, why would NTP time be insufficient and GPS time be required instead? ---
**Author:** ![kersing](https://www.thethingsnetwork.org/forum/user_avatar/www.thethingsnetwork.org/kersing/32/44777_2.png) [@kersing](https://www.thethingsnetwork.org/forum/u/kersing)\ **Post date:** [November 12, 2017, 7:38pm UTC](https://www.thethingsnetwork.org/forum/t/the-hard-rak831-cafe-part-1/8464/359 "2017-11-12T19:38:49Z")
Because the GPS module is connected to the SX1301 to provide the 1pps as well. This allows for a sync resolution which NTP can’t provide. ---
**Author:** ![youngjune0594](https://www.thethingsnetwork.org/forum/letter_avatar_proxy/v4/letter/y/7feea3/32.png) [@youngjune0594](https://www.thethingsnetwork.org/forum/u/youngjune0594)\ **Post date:** [November 13, 2017, 5:38am UTC](https://www.thethingsnetwork.org/forum/t/the-hard-rak831-cafe-part-1/8464/360 "2017-11-13T05:38:45Z")
@kersing okay. but it’s possible to transmit beacons using local timer, not gps right? Assuming there is just one gateway in the network. ---
**Author:** ![kersing](https://www.thethingsnetwork.org/forum/user_avatar/www.thethingsnetwork.org/kersing/32/44777_2.png) [@kersing](https://www.thethingsnetwork.org/forum/u/kersing)\ **Post date:** [November 13, 2017, 7:19am UTC](https://www.thethingsnetwork.org/forum/t/the-hard-rak831-cafe-part-1/8464/361 "2017-11-13T07:19:23Z")
Please see the question and answer section of Johans [LoRaWAN 1.1 update](https://www.thethingsnetwork.org/forum/t/what-is-new-in-lorawan-1-1-live-webinar-by-johan-stokking-on-november-2nd-5-30pm-cet/10396) if you are not convinced by my answers. ---
**Author:** ![BoRRoZ](https://www.thethingsnetwork.org/forum/user_avatar/www.thethingsnetwork.org/borroz/32/44234_2.png) [@BoRRoZ](https://www.thethingsnetwork.org/forum/u/BoRRoZ)\ **Post date:** [November 13, 2017, 11:40am UTC](https://www.thethingsnetwork.org/forum/t/the-hard-rak831-cafe-part-1/8464/362 "2017-11-13T11:40:04Z")
To all The Hard Rakker’s… this topic is a bit full 🕶 we continue **[HERE](https://www.thethingsnetwork.org/forum/t/the-hard-rak831-cafe-part-2/10576)** ---
**Author:** ![BoRRoZ](https://www.thethingsnetwork.org/forum/user_avatar/www.thethingsnetwork.org/borroz/32/44234_2.png) [@BoRRoZ](https://www.thethingsnetwork.org/forum/u/BoRRoZ)\ **Post date:** [November 13, 2017, 11:40am UTC](https://www.thethingsnetwork.org/forum/t/the-hard-rak831-cafe-part-1/8464/363 "2017-11-13T11:40:11Z")
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**Author:** ![BoRRoZ](https://www.thethingsnetwork.org/forum/user_avatar/www.thethingsnetwork.org/borroz/32/44234_2.png) [@BoRRoZ](https://www.thethingsnetwork.org/forum/u/BoRRoZ)\ **Post date:** [December 15, 2017, 9:27am UTC](https://www.thethingsnetwork.org/forum/t/the-hard-rak831-cafe-part-1/8464/364 "2017-12-15T09:27:03Z")
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