Showing posts with label MMDVM HS Hat Reviews. Show all posts
Showing posts with label MMDVM HS Hat Reviews. Show all posts

Pi-Star Firmware upgrade mmdvm hs hat flash

Pi-Star Firmware upgrade mmdvm hs hat flash
the command has change in new versions of pi-star, so steps are:

- open your pi-star dashboard in a web browser
- go to configuration
- go to expert
- go to SSH-Access
- log on (user pi-star + your password)
- type "sudo pistar-mmdvmhshatflash hs_hat"
- confirme by pressing any key (last chance to back out by pressing CTRL-C here)

Enable setup NXDN reflector on MMDVM

F1MIJ PASCAL (@ f1mij) tweeted at 9:18 PM on Tue, Feb 13, 2018:

For the NXDN reflector, you must update your MMDVM.ini to include:

F1MIJ PASCAL (@ f1mij) tweeted at 11:25 PM on Wed, Feb 14, 2018:

IMPORTANT: Do not forget for your NXDN tests to replace the usual "MMDVM" files with those of the experimental "MMDVM-nxdn" available in the Github Branch of G4KLX:

Black Aluminum Protective Enclosure shell Case cover For Raspberry pi zero w

A nice box for those interested, I ordered it

Black Aluminum Protective Enclosure shell Case sover For Raspberry pi zero w



Black Aluminum Protective Enclosure shell Case sover For Raspberry pi zero w


MMDVM HotSpot hat for RPi type B

MMDVM HotSpot hat for RPi type B

HotSpot units, built by David S51DA and Blas EA7GIB. Thanks to both for valuable feedback and contribution of the photos!

This page is about homebrewing an (almost) easy to build MMDVM HotSpot module for Raspberry Pi - type B.

After successfully finishing three boards of those wonderfull miniature HS hats for Rasbberry Pi-zeroW, designed by Mathis, DB9MAT and Florian, DF2ET , I decided to draw a simmilar, however bigger HS hat board, that would fit a normal sized (type B) Raspberry Pi mini computer. Although a bigger size does barely mean an improvement when discussing HotSpot solutions, there is one big advantge - bigger board allows implementation of bigger and therefore easyer handleable SMD components.

MMDVM HS Hat hotspot Firmware Installation

MMDVM HS Hat hotspot - Firmware Installation

Link here :   mmdvmhshat.cf

mmdvmhshat.ga ::
https://github.com/mathisschmieder/MMDVM_HS_Hat/blob/master/README.md

This utility includes firmwares binaries and USB drivers for Windows 7/8/10. If you have problems with the installer, you can download ZUMspotFW.zip for a manual installation.

For specific details about the firmware installation, check these instructions. The process is similar to the installation on the ZumSpot Pi.
Enable the following settings in Config.h:
#define MMDVM_HS_HAT_REV12
#define ENABLE_ADF7021
#define ADF7021_14_7456
#define STM32_USART1_HOST
#define ENABLE_SCAN_MODE
Build the firmware:
make
And finally upload the firmware to the MMDVM_HS_Hat:
sudo make mmdvm_hs_hat

Warning - FAKE - CLONE - pirates of the MMDVM_HS_Hat board

Warning - pirates of the MMDVM_HS_Hat board

Flo (DF2ET) (@flo_0_)
2017-12-21, 3:55 PM
The pirates are too dumb to copy our #MMDVM_HS_Hat board ... Please pay attention: This will not work. pic.twitter.com/MmUzY2zbS6

ircddb remote control pi-star

ircddb remote control pi-star

using ircddbremote app on an iphone to control pi-star running on raspberry pi 3 and MMDVM hotspot HAT.



MMDVM_HS_Hat boards in the mail

#MMDVM_HS_Hat boards for @DM9KS, @do2bn and @dh6kq successfully baked and tested.

Now in the mail to the recipients.

Onboard ceramic antenna(RainSun)

SMA socket external antenna

MMDVM_HS_HAT dual band (VHF/UHF) operation

MMDVM_HS_HAT dual band (VHF/UHF) operation

Just discover you can VHF (144-148 MHz) support for ZUMSpot by an external 18 nH inductor between L1 and L2 pins of ADF7021. This will enable dual band (VHF/UHF) operation.

How to Identify a Genuine MMDVM_HS_Hat:

How to Identify a Genuine MMDVM HS Hat by florian Wolters.

To help distinguish between an orginal #MMDVM_HS_Hat and a clone have a look at the two pics below. The first one is an original board revision 1.2 manufactured by us.  It has the name “MMDVM_HS_Hat” on it in the upper right part. The silkscreen is properly placed and our callsigns are clearly readable. In addition to that there is the Open Source Hardware (OSHW) logo on the lower left.

Real MMDVM_HS_Hat Genuine
Real MMDVM_HS_Hat Genuine

The next picture shows the clone. It is only revision 1.1 and has misplaced silkscreen in the area of our callsings. The OSHW logo was removed as well as the “_HS” suffix on the name. Secondly it seems as if the RF parts are of poor quality. The picture is courtesy of Lindsay, VK2AMV.

Fake MMDVM_HS_Hat False and copy
Fake MMDVM_HS_Hat False and copy
 Warning - FAKE - CLONE - pirates of the MMDVM_HS_Hat board

SMA-M Antenna Dual Band VHF/UHF 144MHz/430MHz

SMA-M Soft Walkie Talkie Antenna Dual Band VHF/UHF 144MHz/430MHz




  • Connector type SMA-M; before you order it please confirm the radio model on the listing
  • Dual Frequency 144/430MHz; Apply to lots of 2 way radio
  • Gain 2.15dBi; Max Power 10Watts and it can extend the range of your communication
  • Antenna Length 6.5cm allow it convenient to carry and you can put it in your pocket
  • Simple and Convenient return process; 60 days warranty provide by us and 30 days no reason to return

MMDVM_HS_HAT Antenna Build

MMDVM_HS_HAT Antenna Build

Case was the recommended for the #MMDVM_HS_HAT. Antenna is a Retevis soft antenna, selected because it was short and weight was at the bottom for stability.

SMA-M Soft Walkie Talkie Antenna Dual Band VHF/UHF 144MHz/430MHz
(Retevis RT20)

  • Connector type SMA-M; before you order it please confirm the radio model on the listing
  • Dual Frequency 144/430MHz; Apply to lots of 2 way radio
  • Gain 2.15dBi; Max Power 10Watts and it can extend the range of your communication
  • Antenna Length 6.5cm allow it convenient to carry and you can put it in your pocket
  • Simple and Convenient return process; 60 days warranty provide by us and 30 days no reason to return

MMDVM_HS ZUMspot v1.0.2

MMDVM_HS ZUMspot v1.0.2

Seems like latest version of firmware enables full power output of ADF7021 chip. You may want to update your boards

MMDVM Pi Hat HS

Most definitely the MMDVM Pi Hat HS

SMA socket external antenna