Differences

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--- ham_radio:personal_hotspots [2018/12/13 12:21] – [JumboSpot/MMDVM_HS_HAT] jon
+++ ham_radio:personal_hotspots [2018/12/17 14:52] (current) – [MMDVM_HS_HAT/JumboSPOT] jon
@@ Line 11: / Line 11: @@
 ==== SharkRF ====
-Shark RF recently released a new version of their highly popular openSpot hotspot, this one being version two: https://www.sharkrf.com/products/openspot2/
+SharkRF recently released a new version of their highly popular openSpot hotspot, this one being version two: https://www.sharkrf.com/products/openspot2/
-Instead of an ethernet cable, it is now completely wireless. You still need to provide a 5v power source, but that is easy to come by.
+Instead of an ethernet cable, it is now completely wireless. You still need to provide a 5v power source, but that is easy to come by. The web interface with the hotspot is completely polished. This is a great set it and forget it device, and is completely independent of any computer. If you're not adventurous at the least, this would be the best option.
+Cost is around $200, depending on the exchange rate to Euro. What you're paying for is customer service and a severely simple to use interface.
 ==== DVMega ====
 ==== ZUMSpot ====
-==== MMDVM Chinese Hotspot ====
+==== MMDVM_HS_HAT/JumboSPOT ====
-Whew… ok. So here's the low-down on these cheap hotspots that have flooded the market.
+In 2017, DF2ET and DB9MAT came up with the [[https://github.com/mathisschmieder/MMDVM_HS_Hat|MMDVM_HS_HAT board]]. This board sits on top of a Raspberry Pi (The technical term being a "hat"), and uses the General Purpose IO pins to communicate. The neat feature about the HS_HAT (and subsequently any variant) is that you can add a tiny OLED screen or A [[https://www.f5uii.net/wp-content/uploads/2017/04/MMDVM-Nucleo-STM32F4-Raspberry-Pi-F5UII-.jpg|NEXTION screen]] to enable a small graphic interface to the exterior. All variants of the hat use a software suite called Pi-Star to leverage the MMDVM suite of software to enable multi-mode digital voice operation.
-DF2ET and DB9MAT came up with the MMDVM_HS_HAT board, which you can add a tiny screen or
+=== Controversy ===
-A NEXIUM screen to for creating a portable Hotspot. The Chinese and bootleggers saw this demand, and went about
-cloning the board and not giving credit per the Open Source Creative Commons license. It's tough for anyone to prove if
-any bootlegger is creating the knock off strictly for-profit, but we know they are.
-There are three options:
+Around the same time, the aforementioned ZumSPOT was created. There was a little kerfuffle over the design of the HS_HAT board in terms of cloning the ZumSPOT. More about some of the story backline can be seen in these posts:
-st - Email D2FET and DB9MAT to purchase. Roughly $70 + shipping American - [email protected]
-nd - Print your own PCBs, order the parts from Mouser, and solder it yourself (SUPER tiny components)
-	• https://github.com/mathisschmieder/MMDVM_HS_Hat
-	• https://github.com/phl0/MMDVM_HS_Dual_Hat
-        • https://oshpark.com/profiles/DB9MAT
-	• An alternative 0806 series: http://lea.hamradio.si/~s57nan/ham_radio/mmdvm_hs/mmdvm_hs.html
-rd - Buy a Chinese knockoff on AliExpress or eBay
-	• https://www.florian-wolters.de/blog/2017/12/15/how-to-identify-a-genuine-number-mmdvm-hs-hat/
-	• http://radioaficion.com/news/jumbo-spot-rtq-mini-mmdvm/
-        * http://radioaficion.com/news/jumbo-spot-mmdvm-review/
-	• https://robrobinette.com/Ham_VHF-UHF_Digital_Modes.htm (Wealth of knowledge)
-With a Chinese knock off, you're essentially getting the same parts, as the firmware is updatable. That part isn't the issue. The only noticeable difference would be the board revision. You need to look EXTRA CAREFULLY at each listing to make sure you're finding a board with the latest revision (should be 1.6 for the solo, and 1.2 for the dual). The other way to tell it's a knockoff is the writing on the board.. Generally called Jumbo Spot on eBay, instead of MMDVM_HS_HAT.
+  * https://www.reddit.com/r/amateurradio/comments/9hlrgn/mmdvm_questions/e6evevo/
+  * https://www.reddit.com/r/amateurradio/comments/9hlrgn/mmdvm_questions/
+  * https://www.reddit.com/r/amateurradio/comments/9ocrr3/cheapest_dmr_hotspot/
-One extra note in the links mentioned. There is a duplex version and a standard single antenna version. The duplex allows for true repeater functionality with two simultaneous Timeslots, whereas the solo antenna board is strictly single Timeslot.
+The Raspberry Pi hat design has been cloned in the Chinese market, with one popular design being the JumboSPOT. If you read the links above, you'll find out that the version 1.2 board of the JumboSPOT was a rather direct clone. Not giving credit per the Open Source Creative Commons license. It's tough for anyone to prove if any bootlegger is creating the knock off strictly for-profit, but we know they are.
-https://github.com/juribeparada/MMDVM_HS/releases
+http://radioaficion.com/news/jumbo-spot-rtq-mini-mmdvm/
+        * http://radioaficion.com/news/jumbo-spot-mmdvm-review/
+	• https://robrobinette.com/Ham_VHF-UHF_Digital_Modes.htm (Wealth of knowledge)
-https://www.reddit.com/r/amateurradio/comments/9hlrgn/mmdvm_questions/e6evevo/
+=== Purchasing an HS_HAT or JumboSPOT ===
+== HS_HAT ==
+There are two options:
+st - Email D2FET and DB9MAT to purchase. Roughly $70 + shipping American - [email protected]
+nd - [[https://github.com/mathisschmieder/MMDVM_HS_Hat|Print your own PCBs, order the parts from Mouser, and solder it yourself]] (SUPER tiny components).
+  * [[https://github.com/phl0/MMDVM_HS_Dual_Hat|They do make a dual hat version as well]]
+  * [[https://oshpark.com/profiles/DB9MAT|A favorite, OSH Park Purple boards from DB9MAT]]
+  * I did find an alternative 0806 version of the board for more general soldering: http://lea.hamradio.si/~s57nan/ham_radio/mmdvm_hs/mmdvm_hs.html
-https://www.reddit.com/r/amateurradio/comments/9hlrgn/mmdvm_questions/
+== JumboSPOT ==
+Buy on AliExpress or eBay
+  * https://www.florian-wolters.de/blog/2017/12/15/how-to-identify-a-genuine-number-mmdvm-hs-hat/
+  * http://jumbospot17.blogspot.com/2018/06/how-to-know-which-is-copy-of-jumbospot.html
-https://www.reddit.com/r/amateurradio/comments/9ocrr3/cheapest_dmr_hotspot/
+With a Chinese knock off unit, you're essentially getting the same parts, as the firmware is updatable. That part isn't the issue. The only noticeable difference would be the board revision. You need to look EXTRA CAREFULLY at each listing to make sure you're finding a board with the latest revision (should be 1.6 for the solo, and 1.2 for the dual). The other way to tell if it is a knock-off is the reset button used.
-http://jumbospot17.blogspot.com/2018/06/how-to-know-which-is-copy-of-jumbospot.html
+One extra note in the links mentioned. There is a duplex version and a standard single antenna version. The duplex allows for true repeater functionality with two simultaneous Timeslots, whereas the solo antenna board is strictly single Timeslot.
+https://github.com/juribeparada/MMDVM_HS/releases
 ===== Setup / Prerequisites =====
 Brandmeister Account
@@ Line 124: / Line 127: @@
 Getting commands to work: https://forum.pistar.uk/viewtopic.php?f=3&t=189&p=521&hilit=shutdown#p521
+=== Turning off APRS reporting of your hotspot from Brandmeister ===
+  * https://forum.pistar.uk/viewtopic.php?f=5&t=557&sid=63a02d3f2de36b428da37e09098242e6&start=10#p2119
+  * https://bm.pd0zry.nl/index.php/APRS
+  * https://github.com/BrandMeister/bm-rpt2aprs
+I've noticed that my callsign has shown up on APRS.fi, with the comment of //MMDVM MMDVM HS Hat 440.0250/440.0250 CC1// which is the frequency I run on, and the colour code. Strange.. don't recall my hotspot having APRS capabilities..
+In short, log in to your Brandmeister Dashboard, and find on the bottom right "My Hotspots". Click your hotspot ID number, and you'll be presented with a General settings page. The first setting is Priority Message. Put NOAPRS in the field. At the bottom, click save changes.