User's Manual
Table Of Contents
- Introduction
- Product Description
- Technology and Benefits
- Applications
- Configuration Options – RF, IP, DFS
- Power and Grounding
- Administration Systems
- Specifications
- Radio specifications (common to all formats)
- Specifications for PMP 430 (5.4 & 5.8-GHz) SM and PTP 230 (5.4 & 5.8-GHz) BH radio with integrated antenna
- Specifications for PMP 400 (4.9 & 5.4-GHz) AP/SM and PTP 200 (4.9 & 5.4-GHz) BH radio with integrated antenna
- Specification for PMP 400/430 AP and PTP 200 BH connectorized radio
- Specifications for PMP 400/430 kitted, connectorized radio (antenna included)
- Performance
- Planning
- Configuring
- Installation
- Regulatory and Legal Notices
- Important Note on Modifications
- National and Regional Regulatory Notices
- U.S. Federal Communication Commission (FCC) Notification
- Industry Canada (IC) Notification
- Regulatory Requirements for CEPT Member States (www.cept.org)
- European Union Notification for 5.8 GHz Product
- Equipment Disposal
- EU Declaration of Conformity for RoHS Compliance
- UK Notification
- Luxembourg Notification
- Czech Republic Notification
- Greece Notification
- Brazil Notification
- Labeling and Disclosure Table for China
- Exposure Separation Distances
- Legal Notices
- Limit of Liability
PMP 400/430 and PTP 200/230 Series Motorola PMP Solutions User Guide Supplement
Issue 6.0 May 2011 Page 37 of 77
3.5 SPECTRUM ANALYZER
A spectrum analyzer is available on the SM’s Tools => Spectrum Analyzer page. The spectrum
analyzer is also available on an AP by temporarily converting it to an SM by setting the Device
Type to SM on the AP’s Configuration => General page. The spectrum analyzer works like the
spectrum analyzer in classic FSK SMs.
Spectrum analyzer uses include:
Showing relative power levels (instantaneous and average) across the band, to aid in
selecting channels and performing RF planning.
Troubleshooting to finding the frequency, relative power level, and location of interferers
by rotating a single SM, or triangulating from multiple SMs in a geographical area.
Release 10.2 added a configurable setting on the Tools => Spectrum Analyzer web page to
display either instantaneous or averaging for spectrum analyzer results for the PTP 100 BHs and
PMP 430 5.8-GHz Series. Release 10.3 added this enhancement for the PMP 400/430 5.4-GHz,
PTP 200 BHs and PMP 100 Series.
The PMP 430 and PTP 230 Series uses average detector rather than peak detector algorithm
which results in ~10 dBm lower readings than PMP 400 Series and FSK which use peak
detectors. For example, when measuring power from an OFDM AP transmitting on a given
channel the PMP 430 5.8-GHz OFDM SM might show a Receive Power Level of -60 dBm while
a PMP 100 5.7-GHz FSK SM spectrum analyzer shows a power level of -53 for that channel.
Figure 23: PMP 430 spectrum analysis compared to FSK
In addition, an PMP 430 SM measures power across 5, 10 or 20-MHz channels (PTP 230
measures power across 10 or 20-MHz channels) while an FSK SM measures power across 20-
MHz channels, so power measurements are not directly comparable between the two. For both
FSK and OFDM, the receiver’s channel bandwidth has been added to the display. This is
important to note as the width of the OFDM channel (5, 10 or 20MHz) affects the bandwidth data
of the spectrum analyzer sample.