The KX3 transceiver is designed for HF amateur band operation. The KX3 natively supports 160m - 6m.
An optional 2m accessory can extend the band support to 2m, though the installation of that accessory is a more intensive, electronics hobbyist task.
As with all radios, do not transmit when the antenna is disconnected. Avoid touching the antenna or feed line when transmitting. Power down the radio and disconnect the feed line when making antenna adjustments.
Goal: Emulate a Raspberry Pi with QEMU in order to run the Raspbian O/S (based on Debian Linux).
The current setup is not ideal. For one thing, the maximum RAM allowed using the "versatile-pb" firmware is
| ## this is a quick and dirty script to remotely login to a Netgear CM1000 modem, | |
| # grab the docsis logs and format them as a csv for saving later. the webpage will only show so many | |
| # and logs can be eventually be lost. this is also an easier way to grab/view them | |
| # last tested on Firmware Version V7.01.01 jan 2 2022 | |
| import requests | |
| import re | |
| from time import time | |
| from csv import DictWriter | |
| from xml.dom.minidom import parseString | |
| from datetime import datetime |
Goal: Emulate a Raspberry Pi with QEMU in order to run the Raspbian O/S (based on Debian Linux).
The current setup is not ideal. For one thing, the maximum RAM allowed using the "versatile-pb" firmware is 256 Mb. In addition, only the most basic peripherals, a keyboard and mouse, are supported.
A number of articles have been written on this topic. Most are outdated, and the few recent ones are missing key information.
| pct create <id> /var/lib/vz/template/cache/centos-7-default_20170504_amd64.tar.xz \ | |
| -arch amd64 \ | |
| -ostype <centos|ubuntu|etc> \ | |
| -hostname <hostname> \ | |
| -cores <cores> \ | |
| -memory <memory(MB)> \ | |
| -swap <swap(MB)> \ | |
| -storage local-lvm \ | |
| -password \ | |
| -net0 name=eth0,bridge=<bridge>,gw=<gateway>,ip=<cidr>,type=veth &&\ |
If you run VMware Workstation 11 or above you may encounter high CPU usage from process khugepaged on Ubuntu 15.04+
The fix is to disable transparent hugepages. It seems Ubuntu has it enabled by default.
You can check the current status on your system by running:
cat /sys/kernel/mm/transparent_hugepage/enabled
cat /sys/kernel/mm/transparent_hugepage/defrag
2017-03-03 fm4dd
The gcc compiler can optimize code by taking advantage of CPU specific features. Especially for ARM CPU's, this can have impact on application performance. ARM CPU's, even under the same architecture, could be implemented with different versions of floating point units (FPU). Utilizing full FPU potential improves performance of heavier operating systems such as full Linux distributions.
These flags can both be used to set the CPU type. Setting one or the other is sufficient.
This gist was essentially created out of my own rant about Netflix being hostile to IPv6 tunnel services since June 2016. You are welcome to read my opinion on the matter, this is the more technical side to the issue and how to combat it within your own network.
Since I wrote this, various GitHub users have contributed their thoughts and ideas which has been incorporated into this gist. Thank you to everyone who have contributed their own methods and implementations.
Netflix now treats IPv6 tunnel brokers (such as Hurricane Electric) as proxy servers. A while ago it became apparent to users and Netflix that somewhat by accident, IPv6 tunnel users were being served content outside of their geolocation because of the way Netflix was identifyi