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PMP 400/430 and PTP 200/230 Series
Name
Surge suppressor (AP, SM, BH)
Surge suppressor pole-mount kit
Refer to
Figure 16
on page
Radio mounting bracket
2.1
TECHNOLOGY AND BENEFITS
The radio automatically selects QPSK (Quadrature Phase Shift Keying), 16-QAM (Quadrature
Amplitude Modulation), or 64-QAM based on RF environment to provide 1X, 2X, and 3X
operation, respectively. This provides 3 speeds and a throughput of over 45 Mbps aggregate
(sum of up plus down when configured for 20MHz channel bandwidth) compared to FSK Canopy
products with 2 speeds and a throughput of up to 14 Mbps.
The OFDM radios feature lower receive sensitivity, FEC (Forward Error Correction), and higher
antenna gain, all of which combine to provide longer range within regulatory-specified EIRP
(Equivalent Isotropic Radiated Power).
Details on performance are listed in
The PMP 400 and PTP 200 Series radios use an OFDM physical layer with 10 MHz channels and
256 sub-carriers while the PMP 430 Series radios use an OFDM physical layer with configurable
channel bandwidth of 5, 10 or 20MHz. The PTP 230 Series radios use an OFDM physical layer
with configurable channel bandwidth of 10 or 20 MHz. A PMP 400 Series 5.4-GHz radio with
10MHz channels will interoperate with a PMP 430 Series 5.4-GHz radio configured with 10MHz
channel bandwidth and 1/4 cyclic prefix. However; due to the different carrier and modulation
schemes between these OFDM radios and FSK Canopy radios, the two do not interoperate over
the air. For example, a PMP 430/400 Series 5.4-GHz OFDM SM cannot connect to a 5.4-GHz
FSK AP.
2.1.1
nLOS Benefits and Limitations
In addition to providing LOS (Line-of-Sight) connectivity, use of OFDM technology can provide
nLOS (near Line-of-Sight) connectivity and sometimes NLOS (Non-Line-of-Sight) connectivity:
LOS: the installer can see the AP from the SM and the first Fresnel zone is clear.
Issue 6.0 May 2011
Model or Part Number
600SSD
SGHN5169A
25
SMMB2A
Table 8
Motorola PMP Solutions User Guide Supplement
on page 32.
Typically use with
C
C
P
C
C
P
C
A
S
T
A
S
T
A
P
M
P
P
M
P
P
5
5
5
5
5
5
4
x
x
x
4
4
4
9
4
4
2
4
4
2
4
3
3
3
0
0
0
0
0
0
0
0
0
0
0
X X X X X X X X X
X
X X
X X
X
X X
Page 22 of 77
C
P
S
T
M
P
4
4
9
9
2
4
0
0
0
0
X
X X
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