RCT-XXX-AS
Low-Cost SAW-stabilized surface mount OOK RF transmitter
© 2001,2002,2003 All Rights Reserved
- 5 -
8/21/2003
DESIGN HINT “Harmonic Filter”:
The impedance at the antenna power affects the VSWR, power output, and harmonic output of
the transmitter. In most cases, the output of the transmitter may need a low-pass LC filter to
reduce harmonic emissions. A good calculator is available on line at http://www-
users.cs.york.ac.uk/~fisher/lcfilter/. Calculate the filter for a 3dB cut-off of the module’s center
frequency plus 10%. For example, the cut-off for a 433.92 MHz module would be about 470
MHz.
Contact Information
Address:
207 Industrial Blvd
Moore, Oklahoma 73160
Phone:
405-794-7730
Fax:
405-794-7477
www:
www.radiotronix.com
support:
support@radiotronix.com
sales:
sales@radiotronix.com
Technical Support Policy
Radiotronix is committed to providing our customers with world-class technical support.
We offer several tools to support you during development. Our RApid Development (or
RAD) kits are designed to make evaluation of our products simple and fast. They also
serve as a known-good reference when debugging your designs. The knowledge base on
our website answers the most commonly asked questions regarding our products.
If you need to communicate with one of our technical support people, the best way is to
post a message in the support forum. Our technical support staff monitor the forum
continuously. By using the forum, you will get the fastest response to your technical
support questions, and other customers will benefit from the information. Also, you may
find that another customer has an answer for your question.
You can also e-mail your question to support@radiotronix.com. The forum is given a
higher priority than e-mail, but we realize that sometimes you just need direct contact
with a support engineer.
We also offer telephone technical support at no charge. Generally, the forum is checked
more often and you are likely to get a faster response, but we do realize that sometimes
nothing replaces a person-to-person conversation. When you call for phone support, your
contact information will be recorded and the next available support engineer will call you
back. This can take 24-48 hours, depending on the volume of support requests.
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