 | Tower-top
amplifiers and noise figure (Part 1 of 2) - Part 2 of
2 |
| Tower-top
amplifiers and noise figure |
| Testing
Tower Top Amplifiers (TTA) - The proliferation of the cellular telephones, PCS telephones, low power two-way radios, and wireless LANs, has created a need for tower top amplifiers (TTA).
|
|
The
finer point of re-banding |
|
Measuring 800MHz interference |
|
Demystifying RF attenuators |
|
Ensuring RF is a multi-faceted task |
|
Site noise vs. system noise figure
- No matter how good the
noise figure of individual components of a receiving system may be,
it is the overall system noise figure that represents the... |
|
Co-channel interference: How bad is it?
- As the land mobile radio
frequency spectrum has become overcrowded, interference has become
the rule, rather than the exception. |
|
Optimizing Performance and maximizing capacity in
CDMA systems
- Several techniques can improve the performance and
capacity of CDMA systems. RF engineers now realize that CDMA offers
and opportunity to trade off capacity,... |
|
High-performance antenna design
|
|
Intermod: Getting the upper hand
Part 1 (PDF
Version), Part
2 (PDF
Version) |
|
Getting back to basics: Filter terminology
- PDF
Version - Filters are indispensable in radio communications systems. Receivers and transmitters use them in RF stages, intermediate frequency stages and audio frequency stages. Much of the basic filter terminology applies to all types of filters used in receivers, transmitters, multicouplers, combiners and antenna systems. |
|
Using and converting RF units of measure
- Many RF measuring units, as well as various
forms of those measuring units, are in use today. |
| Microwave path design -
The Basics - This
series of four articles is a primer on some of the
propagation-related basics of microwave path design. -
Part 4,
Part 3,
Part 2,
Part 1 |
| Reduce
noise in distributed communications systems
-
Back-end design fixes
cannot improve a bad "noise lunch" at the radio system input, but
tower -mounted amplifiers can improve overall system noise figure. |
|
Transmitter noise/
receiver desense primer. When locating multiple stations at a
single site, several precautions must be taken to guard against
interference to all stations at the site. Among factors to be
considered are transmitter noise and receiver desensitization. |
|
Using and converting RF units of
measure |
