Link Budget
This allows the received signal quality to be evaluated.
Many link parameters allow different input options.
For example the antenna gain may be given in dBi, or the diameter of a dish antenna in meters.
This app deals with digital communication links, rather than analog systems.
This app includes several on-line examples, for satellite and terrestrial communications, plus brief notes on interesting or novel aspects of these links.
Examples range from very short links to space communications, with bit rates from bits/second to Gbits/second.
A link is provided to a short tutorial on link budget parameters and the formulas used in the app.
The latest version provides information on the bandwidth options, given the Eb/N0.
The first screenshot shows the parameters required for a new link budget.
Each of the 8 parameters allows appropriate units to be selected, and provides brief hints.
After entering suitable parameters, the user presses the "CALC" button to evaluate the link budget.
Numerical values (in dB) that contribute to the final Eb/N0 result (energy per bit over noise spectral density) are shown in the second screenshot which is one of the examples (Ka Band Mars return link).
The final bit error rate performance of a digital RF link depends on the Eb/N0 and the modulation/error correction schemes.
The examples provide some brief pointers to these issues but modulation and coding are not covered in detail.
This app will give accurate values for Eb/N0 for point to point radio links where the path loss is easily calculated.
It doesnt attempt to cover the path loss in obstructed links (e.g.
cellular communications) or links subject to multipath fading, although some examples mention these issues.
The current version also offers a few examples of point to point free space optical (FSO) links.
In these cases the performance metric is photons per bit.
The app doesnt collect any data from users.
A user may store one set of link budget parameters, plus their own brief text, about their link budget.
These parameters just remain in the app on the installed device.
The latest version (0.73) contains small updates to align with the recent Android versions.
About Link Budget
- Package name (App ID)
- org.lowsnr.test4
- Available on
- Google Play
- Price
- Free
- Developer
- Bill Cowley
Looking for the Link Budget APK?
The safest way to get Link Budget (org.lowsnr.test4) on your Android device is to install it directly from Google Play — you'll always get the latest official version, automatic updates, and no risk of modified or infected APK files from third-party sites.
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Frequently Asked Questions
Is Link Budget free?
Yes, Link Budget is free to download and install on Android through Google Play.
How do I install Link Budget on Android?
Open Google Play on your Android phone or tablet, search for Link Budget by Bill Cowley or tap the Google Play button on this page, then tap Install. The app downloads and installs automatically.
What is org.lowsnr.test4?
org.lowsnr.test4 is the App ID (package name) of Link Budget on Google Play. Every Android app has a unique package name, and it is the safest way to verify you are installing the official app.
Is Link Budget safe to download?
Installing Link Budget from Google Play is the safest option: you get the official version published by Bill Cowley, verified by Google Play Protect, with automatic updates. Avoid APK files from unofficial third-party sites.
Get Link Budget Today
Link Budget for Android — free download on Google Play.
Compatible with Android phones and tablets — available on Google Play.
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