Technical Blog

ham radio coverLearn how to build projects for the ham shack or about new technology in Ham Radio. Posting of articles requires a user login ID with publishing rights.  Send an email to the WEB admin to request publishing rights for your account.

 

 


 

W5DXP Antennas Web Page

W5DXP Web page has what looks to be a good set of articles on antennas.

Link to site.

Raspberry PI AM, FM, SSB, SSTV TX

PiTX transmitting SSTV and received in HDSDR. From PiTX's author's Twitter @F5OEOEvariste(RTL-SDR.COM) Previously we posted about the Raspberry Pi’s ability to modulate one of its pins to produce FM transmissions with PiFM. A developer (F5OEO) has recently expanded on this idea, and now the Raspberry Pi is capable of modulating and transmitting FM, AM, SSB, SSTV and FSQ signals anywhere between 130 kHz to 750 MHz. Link to article

 

Restricted Space Antennas

Presentation

By Jeff Blaine

AC0C

ARRL Midwest Convention

11/9/2013

CW Decoder Project

From: This email address is being protected from spambots. You need JavaScript enabled to view it.  
 
All,
 
Larry Hall and I have bought the ARRL manual called, "Ardunio for Ham Radio".  Chapter 22 is titled, "CW DECODER".  The purpose of this project is to take the CW sounds from your radio, convert it into letters and numbers, and display it on a LCD display.
 
This is what Larry and I have been involved in the last couple of months. He has prototyped his on a breadboard.  I am still collecting components.  The project utilizes about 20 components (Caps, Res, Pots, ICs, LCD, Arduino UNO R3).  Larry is getting close to having a working model to demo to the group. 
 
His question to everyone... Are you interested in pursuing the CW DECODER project, or would the group want to do something else?
 
Please do a "Reply All" with your responses.
 
Thanks,
Jim - AC0KN