Ham Radio Software Downloads

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CW Terminal Program with DSP
Updated Oct 29, 2008

To see a description of the CW Terminal program with DSP check out AG4ND CWTerminal with DSP

This program is a CW terminal program with digital signal processing for CW reception. DSP allows CW reception during noisy conditions or when using a receiver that does not have CW filters or DSP. This program only receives via the sound card and sends via the serial port using the DTR RS/232 control.
The current version is Version 6.1.43 The major changes from previous versions are:

• Removal of IIR filters. All filtering is now done using FIR filters instead.
• CW detection is now done using FFT which works better than the previous level detection. The FFT bucket is wide so tuning is not really critical.
• Audio AGC has been removed relying on the receiver AGC if needed.
• Improved adaptive noise filter performance

To download this program , click AG4NDCWTV6.1Full.zip(1.3 MB).After downloading this file, unzip it into a directory of your choice, switch to that directory and run Setup.exe following the instructions.
This is a full install and must be installed as a unit. Updates to this version will be done via smaller downloads. This version of the program has only been tested on Windows Vista but should work OK on XP

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PC Soundcard Based DSP filter for CW Reception

Documentation

To see a description of the CW DSP program click AG4ND CW DSP Filter description.

For a full installation of the program, complete with an installation program, download AG4NDCWDSPV020109.zip (1,202 KB) to a folder of your choice and unzip it. Run the Setup.exe program and follow the instructions. After installing this program, to get the latest version, download the file below and install in the same directory as the original program.

Udate 11/25/05

This update modifies the program such that passthrough mode has zero delay. In order for the passthrough feature to work, you have to be using the default sound card on your system and be using the "line-in" audio source. The passthrough feature has only been tested with Sound Blaster cards running under Windows XP. The passthrough feature will not work on the M-Audio Delta 44 soundcards but may run on others. The main part of the program will run on almost any soundcard, including the Delta 44.

To install this update, download ag4ndcwdspupdv020115.zip and unzip it into the directory where the original program was installed. Documentation will be updated later. There is an additional file in the updated installation, AG4MIXER.DLL and this file can either be installed in your .DLL path or the same directory as the program. By default, it will be installed in the program directory.

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Comments or Questions

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