If you tune around certain parts of each band you are likely to hear several digital modes. Refer to the ARRL Band Plan to determine where you should operate digital modes for every band. I recorded the following examples in a few minutes on 20 meters this afternoon just to show how easy it is to find operators using these modes. Many of these modes are available through free or inexpensive software and you probably have the equipment to hand that you will need. I use the sound card in my PC to produce the transmitted audio but I have used USB devices made specifically for using digital modes. Continue reading Digital Mode Samples
Python can send tweets using the Tweepy library and after these few steps you should be able to use it tweet from your Raspberry Pi. Step one – download Tweepy to your Raspberry Pi with three command line statements. In a terminal window type each command and press return.
git clone https://github.com/tweepy/tweepy.git cd tweepy sudo python setup.py install
Once the library is installed, you can move to step two – getting the values for consumer_key, consumer_secret, access_token and access_token_secret. It’s hard to explain this so just watch my video on YouTube: https://youtu.be/xEQYbT1gpxo
Step three – copy this code to your favorite editor then save it a with a descriptive name like HelloWorld.py and do not forget the .py extension.
#Import the Tweepy library import tweepy #Consumer keys and access tokens, used for OAuth. You will #need your own values and they are much longer than these examples. #Follow the instructions from my YouTube video (link above). consumer_key = '1xS' consumer_secret = 'AxD' access_token = '3x9' access_token_secret = 'UxR' #OAuth process, using the keys and tokens auth = tweepy.OAuthHandler(consumer_key, consumer_secret) auth.set_access_token(access_token, access_token_secret) api = tweepy.API(auth) api.update_status('Hello World from my Raspberry Pi!')
Navigate to the directory you saved the file in and type the following command line statement in a terminal window.
sudo python HelloWorld.py
You should have tweeted “Hello World from my Raspberry Pi”.
A few days ago my LoTW password stopped working so I tried the “Forgot Password” option but got no reply from the system. On September 25 I emailed their help desk and got a response on September 29. A new password checking routine, implemented on September 19, is to blame for the problem. Here is the email reply from email@example.com. Continue reading A Fix for LoTW Password Problem
I enjoy RTTY contesting because it’s fast-paced and I can easily contact many stations from a wide geographical area in a single contest. That’s not to say that I don’t enjoy a good ragchew but sometimes I just want to rack up the contacts. As I write this I am calling CQ in the CQ WW DX RTTY Contest and have worked three European countries and a few stateside stations in the last five minutes. Continue reading Why I Enjoy RTTY Contests
I have been curious about using Python to access the GPIO pins on a Raspberry Pi. Here is a brief description of the code and some things I learned in the process. See the video here: https://youtu.be/mGNyRZzSpLs Continue reading Blinking LEDs with Python on a Raspberry Pi
After working for about four years I have become comfortable as a CW operator. On a recent weekend I worked CW for about four hours straight and had a great time doing so. Here is how I learned CW as an adult “no code” ham.
Continue reading Learning CW as an Adult
A few days ago I Tweeted a couple of times about HRD crashing. DM-780 would hang when I hovered over a callsign, but the problem was not in DM-780 – it was in HRD Logbook. Continue reading HRD Issue Fixed