You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
148 lines
4.8 KiB
148 lines
4.8 KiB
---
|
|
title: Radioddity GD-77
|
|
summary: >
|
|
Consider the OpenGD77 firmware and you're all set with a very
|
|
user friendly and customizable handheld radio.
|
|
aliases:
|
|
- /equipment/handhelds/radioddity-gd77/
|
|
date: 2020-10-17
|
|
lastmod: 2024-09-25T03:37:50+0000
|
|
#categories:
|
|
#- amateur-radio
|
|
showBreadcrumbs: true
|
|
showReadingTime: false
|
|
showWordCount: false
|
|
|
|
---
|
|
|
|
[Product page][1] — [OpenGD77 Firmware][2] — [Latest CPS][3]
|
|
|
|
[1]: https://www.radioddity.com/products/radioddity-gd-77-dmr-two-way-radio
|
|
[2]: https://www.opengd77.com/downloads/GD77/Latest/
|
|
[3]: https://www.opengd77.com/downloads/CPS/Latest/
|
|
|
|
This is probably the first DMR capable radio that is made for amateur radio.
|
|
Obviosly not per default, but thanks to OpenGD77 it is now suited for amateur
|
|
radio usage.
|
|
|
|
## udev-Rules for Linux
|
|
|
|
~~~rb
|
|
# USB rules for GD-77
|
|
# Place this in /etc/udev/rules.d/ to let all users talk to the radios by USB.
|
|
|
|
#
|
|
SUBSYSTEM=="usb", ATTRS{idVendor}=="15a2", ATTRS{idProduct}=="0073", MODE="0666"
|
|
|
|
# HIDAPI/libusb
|
|
SUBSYSTEM=="usb", ATTRS{idVendor}=="15a2", ATTRS{idProduct}=="0073", MODE="0666"
|
|
SUBSYSTEM=="usb", ATTRS{idVendor}=="1fc9", ATTRS{idProduct}=="0094", MODE="0666"
|
|
|
|
# HIDAPI/hidraw
|
|
KERNEL=="hidraw*", ATTRS{idVendor}=="15a2", ATTRS{idProduct}=="0073", MODE="0666"
|
|
KERNEL=="hidraw*", ATTRS{idVendor}=="1fc9", ATTRS{idProduct}=="0094", MODE="0666"
|
|
|
|
# HIDAPI/hiddev
|
|
## We need to unbind this device, otherwise LibUsb will fail to SetConfiguration() and ClaimInterface()
|
|
# For Bootloader (usbhid)
|
|
KERNEL=="hiddev*", ATTRS{idVendor}=="15a2", ATTRS{idProduct}=="0073", MODE="0666", RUN+="/bin/bash -c 'ID=$(IFS=/; read -a array <<< %p; echo ${array[-3]}); echo $ID > /sys/bus/usb/drivers/usbhid/unbind'"
|
|
|
|
# OpenGD77
|
|
KERNEL=="ttyACM[0-9]*", SUBSYSTEM=="tty", ATTRS{idVendor}=="1fc9", ATTRS{idProduct}=="0094", MODE="0666", GROUP="dialout", SYMLINK+="OpenGD77"
|
|
~~~
|
|
|
|
If you want do reload udev with the new rules, run:
|
|
|
|
~~~console
|
|
$ udevadm control --reload-rules && udevadm trigger
|
|
~~~
|
|
|
|
## Original boot tone melody
|
|
|
|
The originally used boot-up melody. I'm not sure if it changed already, but this
|
|
was on my GD-77 when I first installed the OpenGD77 firmware.
|
|
|
|
~~~plain
|
|
38,6,0,2,38,2,0,2,38,6,0,2,38,2,0,2,38,6
|
|
~~~
|
|
|
|
## My boot-up picture
|
|
|
|
| Normal display settings | Inverted display settings |
|
|
| :--- | :--- |
|
|
|  |  |
|
|
|
|
## Importing DMR-IDs
|
|
|
|
Open _Extras >> Download callsign database_ and fetch the data that you want.
|
|
|
|
|
|
|
|
Set the region to the desired <abbr title="Mobile Country Code">MCC</abbr> that
|
|
you want to import. You can also use the inactivity filter that fetches only
|
|
recently active DMR-IDs. Or you can import DMR-IDs from a file.
|
|
|
|
|
|
|
|
I usually import them from a CSV-file. The file that I use contains all the
|
|
austrian callsigns plus a few other callsigns, that I regularly see. ~~So I need
|
|
to import about 2000 callsigns.~~ Well, I do not use DMR, D-STAR or C4FM so often;
|
|
so I don't import anything at the moment. But I came across this site again and I
|
|
thought I could update this list again (after nearly 2 years there are a few new
|
|
callsigns in this list -- about 2000 new callsigns).
|
|
|
|
{{< alert "circle-info" >}}
|
|
If you don't have a proper file to start with use this one here. It contains
|
|
these regions: `232, 262, 263, 264, 222, 228`.
|
|
<a href="/files/dmrids_2024-07-07.zip" title="29651 entries">:open_file_folder: Download</a> (\~246KB)
|
|
{{< /alert >}}
|
|
|
|
Or: download your own set of DMR-IDs with the regions you want. You can also
|
|
download only some federal states (like `2327,2328`) if you don't want all
|
|
entries from `232`. [Read along here][dmrid] for some instructions about this.
|
|
|
|
[dmrid]: {{< ref "posts/2020/13-create-your-own-dmrid-database-file" >}}
|
|
|
|
## Band scope (Spectrum sweep scan)
|
|
|
|
I'm not sure when this feature was implemented, but OpenGD77 now supports
|
|
an easy to use band scope on the GD-77.
|
|
|
|
Press and hold the hash key <kbd>#</kbd> when in VFO mode to enter this feature.
|
|
|
|
## Output power on 2m
|
|
|
|
|
|
|
|
| Power setting | Out power (device 1) | Out power (device 2) |
|
|
| :--- | :--- | :----- |
|
|
| +W- | 7.50 W | 7.60 W |
|
|
| 5W | 5.31 W | 5.40 W |
|
|
| 50mW | 376 mW | 152 mW |
|
|
| 1W | 1.30 W | 1.35 W |
|
|
| 2W | 2.37 W | 2.14 W |
|
|
| 3W | 2.90 W | 2.70 W |
|
|
| 4W | 3.76 W | 3.40 W |
|
|
|
|
I have two devices and they differ on some settings (50mW setting for example).
|
|
|
|
## Output power on 70cm
|
|
|
|
|
|
|
|
I have only measured one device as devices may differ largely.
|
|
|
|
| Power setting | Output power|
|
|
| :---- | :----- |
|
|
| 50mW | 917 mW |
|
|
| 250mW | 925 mW |
|
|
| 500mW | 1.86 W |
|
|
| 750mW | 1.49 W |
|
|
| 1W | 1.67 W |
|
|
| 2W | 2.35 W |
|
|
| 3W | 2.96 W |
|
|
| 4W | 4.22 W |
|
|
| 5W | 7.50 W |
|
|
| +W- | 8.41 W |
|
|
|