Zebra Technologies AP6 Access Point Radio Module 6 User Manual Manual
Zebra Technologies Corporation Access Point Radio Module 6 Manual
Contents
Manual
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CONFIDENTIAL AND PROPRIETARY
REVISIONS
REV
1.0
2.0
DESCRIPTION
DATE
AUTHOR
RFQ
RFQ revised with high power option
01/28/10
02/01/10
Vinh Le
Vinh Le
Orthus
Radio
functional
specification
Orthus
Radio
Integration
Guide
Mid Power APN RF functional specifications
DOC. NO: 00-J948B0-FS04
Page 1 of 24
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Required Approvals
Program Manager
xxx
Date:
Electrical, Mechanical & RF Engineering
Platform Manager
Morteza Zarrabian
Date:
Product Manager
xxx
Date:
Optional Approvals
System Engineering
Vinh Le
Date:
RF Engineering
Nhan Nguyen
Date:
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CONFIDENTIAL AND PROPRIETARY
TABLE OF CONTENTS
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For Internal Use Only - Do Not Duplicate
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CONFIDENTIAL AND PROPRIETARY
TABLE OF FIGURES
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1.1
Functional summary
Overall radio summary
The Orthus radio is a dual band radio which can be configured to work at 2.4GHz or at 5.2GHz. The Orthus radio is
based on Atheros XB92 reference design that is a 2x2 MIMO supporting 1 and 2 spatial streams. There are only two
antennas for the radio. The Orthus radio is based on XB92 base band chipset AR9280 from Atheros with the radio
front end redesigned such that the radio will have better transmit power than the Atheros XB92 reference design.
The radio has two operation modes: 3.3V and 5.0V. In the 5.0V mode, the radio is designed to transmit more power
than the 3.3V in 2.4G band. More details are described later on in this document. The Orthus radio will be used in
three different AP products: MCN, NCAP, and high power NCAP (HP-NCAP).
The following section highlights a few modes of the radio:
• Data rates supported in 802.11b modes are: 1Mbps, 2Mbps, 5.5Mbps, and 11Mbps.
• Data rates supported in 802.11g modes are: 6Mbps, 9Mbps, 12Mbps, 18Mbps, 24Mbps, 36MBps, 48Mbps,
and 54Mbps.
• Data rates supported in 802.11n draft 2.0 modes: MCS0 through MCS15.
• Channel bandwidth: 20 MHz or 40 MHz.
• Frequency band: 2.4 GHz and 5.2 GHz.
• Short guard support for HT40.
• STBC support in single spatial stream mode.
• Configurable transmit power mode: medium and high power (3.3V or 5.0V)
• Typical RF transmit power per antenna, high power mode, 11Mbps: +28dBm, 2.4G.
• Typical RF transmit power per antenna, normal power mode, 11Mbps: +22dBm, 2.4G.
• Typical RF transmit power per antenna, normal power mode, 6Mbps: +21dBm, 5.2G.
• Interface: PCI-E.
1.2
Radio PHY Supported feature highlights
HT PHY Layer Features/Functions
20 MHz Channel Bandwidth
40 MHz Channel Bandwidth
Short preamble
Short/Long guard for HT20
Short/Long guard for HT40
Legacy Frame Format
Mixed Mode (High Throughput) Frame Format
Green Field Frame Format
40 MHz Mode
Convolutional Coding
Low Density Parity Check Coding (LDPC)
Open Loop Spatial Division Multiplexing (SDM)
Closed Loop Transmit Beam forming (TxBF)
Space Time Blocking Code (STBC)
800ns Guard Interval
400ns Guard Interval
1 Spatial Stream
2 Spatial Stream
3 Spatial Stream
4 Spatial Stream
Supported
Not supported
Long guard
Short guard
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Number of transmitters
Number of receivers
Figure 1-PHY supported features
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2.1
Electrical
Antenna ports
The radio will have two U.FL antenna connectors. The radio can transmit on one or two antennas depending on the
operating modes. Furthermore, the radio can receive on one or two antennas as well.
2.2
Temperature range
This radio will be characterized and will maintain RF electrical specifications as stated here when the radio is used
in the MCN, NCAP or HP-NCAP. Please refer to the mechanical functional specification of the respective AP.
2.3
Radio power supply
Description
5.0 V Supply voltage
3.3 V Supply voltage
MIN
4.85
3.2
TYP
5.0
3.3
MAX
5.15
3.4
Unit
Vdc
Vdc
Comments/Notes
5.0 V nominal, 3% variation
3.3V nominal, 3% variation
Figure 2-Power supply specifications
2.3.1
Average power consumption
The average power consumption is specified as below. In this configuration, the Orthus radio is set to transmit at
maximum power at the given data rate.
Item Radio mode
3.3V
5.0V
Power consumption
(RMS) max
2.5W
8W
Figure 3-RSM current and power consumption
2.4
RF channel bandwidth
The RF signal bandwidth shall be configurable to 20MHz, or 40MHz at 2.4 GHz band and 5.2 GHz band.
2.5
2.5.1
Channel allocation and frequency operating range
2.4 GHz band
The 2.4 GHz operating frequency ranges from 2.312 GHz to 2.472 GHz. In addition to that, 2.484 GHz can also be
selected. Normally, channel center frequencies are tunable in 5 MHz steps and are define as follows:
Channel center frequency = 2407 + 5n (MHz)
Where,
n = 1,2,…11
Common operating channels are:
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Channel
10
11
12
13
14
Center frequency (MHz)
2412
2417
2422
2427
2432
2437
2442
2447
2452
2457
2462
2467
2472
2484
Figure 4-2.4 GHz channel
2.5.2
5.2 GHz band
The 5.2 GHz operating frequency ranges are as below. This radio will NOT support 4.9GHz band. The supported
frequency range is listed as follows:
Band
UNII-1
UNII-2
UNII-3
UNII-4
Europe
Japan
Frequency (GHz)
5.15-5.25 GHz
5.25-5.35 GHz
5.470-5.725 GHz
5.725-5.850
5.15-5.25 GHz
5.25-5.35 GHz
5.47-5.725 GHz
5.15-5.25 GHz
5.25-5.35 GHz
5.470-5.725 GHz
Figure 5-5.2 GHz frequency operating range
The exact center channel frequency for operation can be determined by using the following formula:
Channel center frequency = 5000 + n*5 (MHz)
Where n=0,1,…,200
2.6
2.6.1
Transmitter operation
Spectrum mask
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The Orthus radio shall be designed to meet IEEE recommendation for spectrum mask. For the 20MHz operation, the
spectrum mask will conform the IEEE standard in 802.11n draft 2.0 as defined in 21.3.20.1. Please refer to the draft
2.0 for more details.
Figure 6-20MHz spectrum mask
When transmitting in a 20 MHz channel, the transmitted spectrum shall have a 0 dBr (dB relative to the maximum
spectral density of the signal) bandwidth not exceeding 18 MHz, –20 dBr at 11 MHz frequency offset, –28 dBr at 20
MHz frequency offset and –45 dBr at 30 MHz frequency offset and above. The transmitted spectral density of the
transmitted signal shall fall within the spectral mask, as shown in Figure n64 (Transmit spectral mask for 20 MHz
transmission). The measurements shall be made using a 100 kHz resolution bandwidth and a 30 kHz video
bandwidth. The mask for 40MHz RF signal is shown below:
Figure 7-40MHz spectrum mask
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2.6.2
Spectral flatness
The transmit spectral flatness will conform the 802.11n draft as specified in section 20.3.20.2.
In a 20 MHz channel and in corresponding 20 MHz transmission in a 40 MHz channel, the average energy of the
constellations in each of the spectral lines –16 to –1 and +1 to +16 shall deviate no more than ± 2 dB from their
average energy. The average energy of the constellations in each of the spectral lines –28 to –17 and +17 to +28
shall deviate no more than +2/–4 dB from the average energy of spectral lines –16 to –1 and +1 to +16.
In a 40 MHz transmission (excluding HT duplicate format and non-HT duplicate format) the average energy of the
constellations in each of the spectral lines –42 to –2 and +2 to +42 shall deviate no more than ± 2 dB from their
average energy. The average energy of the constellations in each of the spectral lines –43 to –58 and +43 to +58
shall deviate no more than +2/–4 dB from the average energy of spectral lines –42 to –2 and +2 to +42.
2.6.3
Transmit power range and accuracy
This radio will have an adjustable output power range from +4dBm to +28dBm in 0.5 dB step. Per Atheros radio
calibration procedure as well as per base band chipset design, this radio shall be designed to maintain an average
transmit power accuracy of +/-2dB per antenna.
The method for determining the average transmitted power accuracy is calculated as follows:
When the ideal transmitted power is set by software, the output RF power of the radio is measured simultaneously
by the MIMO Litepoint Iqnxn test set (or equivalent) for a given data rate on all channels, all frequency bands. The
actual measured output power is subtracted from the ideal settings to obtain the errors for each level. The errors at
each level are then averaged over all channels in the given band. This calculation shall be performed for each
transmit chain.
2.6.4
Transmit center frequency tolerance
The transmitter center frequency tolerance shall be ±20 ppm maximum.
2.6.5
RX Symbol clock frequency tolerance
This table below lists the minimum requirements for the radio by the IEEE standard. The actual radio shall be able
to accommodate +/- 50ppm.
Mode Of Operation
802.11a
802.11b
802.11g
IEEE Stability Requirements
+/-20ppm frequency stability vs. temperature and aging.
+/-25ppm frequency stability vs. temperature and aging.
+/-25ppm frequency stability vs. temperature and aging.
Radio spec (min)
+/- 40ppm
+/-50ppm
+/-50ppm
Figure 8-Symbol clock frequency tolerance
2.6.6
Modulation accuracy (EVM), DSSS rates
Modulation accuracy shall meet the minimum requirements by IEEE 802.11 draft 2.0.
The following table lists the EVM requirements for direct sequence spread spectrum data rates which use 802.11b
waveforms:
Data rate (Mbps)
EVM (minimum)
35%
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5.5
11
35%
35%
35%
Figure 9- Transmit modulation accuracy (EVM) for DSSS rates
2.6.7
Modulation accuracy (EVM), OFDM rates
The following table lists the EVM requirements for OFDM data rates which use 802.11a, 802.11g, and 802.11n
draft 2.0 waveforms:
Data rate(Mbps)
12
18
24
36
48
54
Relative constellation error (dB) (minimum)
-5
-8
-10
-13
-16
-19
-22
-25
Figure 10-EVM specifications for OFDM 802.11 a/g rates
Modulation
BPSK
QPSK
QPSK
16-QAM
16-QAM
64-QAM
64-QAM
64-QAM
Code rate
½
½
¾
½
¾
½
¾
5/6
Relative constellation error (dB) (minimum)
-5
-10
-13
-16
-19
-22
-25
-28
Figure 11-Transmit modulation accuracy (EVM) for HT rates
2.6.8
Phase noise
Normally, the phase noise effect has already part of the transmit EVM specifications. However, the receiver local
oscillator can still affect the receive signal quality.
Item
Integrated phase noise
Max
1.5
Unit
Degree rms
Figure 12-Phase noise specification
2.6.9
VCO turn around settling time
The VCO shape should be similar to the plot below or better for backward compatibility with older Motorola
products. Specifically, during transient transition from transmit to receive, or from receive to transmit, the VCO
frequency shall not change more than 20 KHz over 20us counting from the start of the turnaround packet.
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Figure 13-VCO frequency transient
2.6.10
Transmit emissions
Item
206
207
Description
Receive emissions
Receive emissions
MIN
MAX
-57
-47
Unit
dBm
dBm
-30
301
Transmit signal
spectrum
dBc
-50
302
Band-edge spurious
signals
-41
dBm
302a
Band-edge Spurious
signals
-30
dBm
307
Key click/spectral
re-growth
10
dBr
Comments
30 MHz to 1 GHz
1 GHz to 12 GHz
Relative to constant TX at Fc
11MHz
For fc–22MHz f fc–11MHz and
fc+11MHz f f c+22MHz.
1 MHz RBW, 1 KHz VBW, max
hold, Transmitting 11 MB/sec
packets at any channel 1 through
11: measure in 2300-2390 MHz,
2483.5-2500 MHz, 4/5-5.25 GHz,
and 7.25-7.75 GHz. (FCC 15.205:
restricted bands). Antenna to have
0 dBi gain.
ETSI
Measurements to be made using a
100 kHz resolution bandwidth and a
30 KHz video bandwidth. dBr
means dB relative to the SINx/x
peak.
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Figure 14-Transmit emission specifications
2.6.11
Load stability
The transmitter will be unconditionally stable under infinite VSWR, and all phases.
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2.6.12
Conducted transmit power
Due to the EVM and side-lobe requirements, the maximum transmit power will vary with data rates. The figures
below shows typical transmit power for each transmitted chain for both 2.4GHz and 5.2GHz operation. The transmit
power listed here are characterized based on EVM purpose only. The final AP transmit power depends on the result
of regulatory test for each country.
As mentioned in beginning of the document, the radio has two modes: 3.3V and 5.0V mode. The transmit power for
5.2G is the same in both modes whereas the transmit power for the 2.4G band is boosted. The two tables below lists
the difference.
The conducted transmit power is specified as the power measured at the Orthus radio connector and not at the
antenna chassis of the AP. Average transmit power is a number typically seen when measured on an arbitrary radio.
The conducted transmitted power is subject to vary as defined by transmit power variation specification in section
2.6.3
Orthus Radio
transmit power 3.3V
mode
Rates (Mbps)
5.5
11
12
18
24
36
48
54
Modulation
Code
Rate
MCS
MCS0/MCS8
MCS1/MCS9
MCS2/MCS10
MCS3/MCS11
MCS4/MCS12
MCS5/MCS13
MCS6/MCS14
MCS7/MCS15
BPSK
QPSK
BPSK
QPSK
BPSK
BPSK
QPSK
QPSK
16-QAM
16-QAM
64-QAM
64-QAM
BPSK
QPSK
QPSK
16-QAM
16-QAM
64-QAM
64-QAM
64-QAM
½
¾
½
¾
½
¾
2/3
¾
½
½
¾
½
¾
2/3
¾
5/6
Bandwidth
20MHz
20MHz
20MHz
20MHz
20MHz
20MHz
20MHz
20MHz
20MHz
20MHz
20MHz
20MHz
HT20/40
HT20/40
HT20/40
HT20/40
HT20/40
HT20/40
HT20/40
HT20/40
Average
transmit
power
2.4G band
22
22
22
22
22
22
22
22
22
21
20
19
22
22
22
22
21
20
19
18
Average
transmit
power
5.2G band
NA
NA
NA
NA
21
21
21
21
21
20
19
18
21
21
21
21
21
20
19
18
Figure 15-Transmit power specification, 3.3V mode
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Orthus Radio
transmit power 5.0V
mode
Rates (Mbps)
5.5
11
12
18
24
36
48
54
Modulation
Code
Rate
MCS
BPSK
QPSK
BPSK
QPSK
BPSK
BPSK
QPSK
QPSK
16-QAM
16-QAM
64-QAM
64-QAM
BPSK
QPSK
QPSK
16-QAM
16-QAM
64-QAM
64-QAM
64-QAM
MCS0/MCS8
MCS1/MCS9
MCS2/MCS10
MCS3/MCS11
MCS4/MCS12
MCS5/MCS13
MCS6/MCS14
MCS7/MCS15
½
¾
½
¾
½
¾
2/3
¾
½
½
¾
½
¾
2/3
¾
5/6
Bandwidth
20MHz
20MHz
20MHz
20MHz
20MHz
20MHz
20MHz
20MHz
20MHz
20MHz
20MHz
20MHz
HT20/40
HT20/40
HT20/40
HT20/40
HT20/40
HT20/40
HT20/40
HT20/40
Average
transmit
power
2.4G band
28
28
28
28
28
28
28
28
27
26
25
24
28
27
27
26
26
25
24
23
Average
transmit
power
5.2G band
NA
NA
NA
NA
21
21
21
21
21
20
19
18
21
21
21
21
21
20
19
18
Figure 16-Transmit power specification, 5.0V mode
2.7
2.7.1
Receiver operation
Receiver input sensitivities
The receiver sensitivity is independent of 3.3V mode or 5.0V mode. The two tables below show the desired
performance for the radio. The sensitivity is a number averaged over all channels in a given band.
2400 Mhz band
Rates
MCS indices
Rate type
LEGACY
Typical radio
receiver sensitivity
(dBm)
-94
-93
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5.5
11
12
18
24
36
48
54
MCS0
MCS1
MCS2
MCS3
MCS4
MCS5
MCS6
MCS7
MCS8
MCS9
MCS10
MCS11
MCS12
MCS13
MCS14
MCS15
MCS0
MCS1
MCS2
MCS3
MCS4
MCS5
MCS6
MCS7
MCS8
MCS9
MCS10
MCS11
MCS12
MCS13
MCS14
MCS15
HT20
HT40
-91
-90
-92
-92
-91
-89
-85
-83
-79
-77
-92
-89
-87
-84
-81
-77
-76
-74
-92
-88
-86
-83
-81
-76
-75
-73
-88
-86
-84
-82
-79
-74
-72
-71
-88
-85
-83
-81
-78
-73
-71
-70
Figure 17-Typical receiver sensitivity for Orthus radio, 2400Mhz band
5200 Mhz band
Typical radio
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CONFIDENTIAL AND PROPRIETARY
receiver sensitivity
(dBm)
Rates
12
18
24
36
48
54
MCS indices
Rate type
LEGACY
MCS0
MCS1
MCS2
MCS3
MCS4
MCS5
MCS6
MCS7
MCS8
MCS9
MCS10
MCS11
MCS12
MCS13
MCS14
MCS15
MCS0
MCS1
MCS2
MCS3
MCS4
MCS5
MCS6
MCS7
MCS8
MCS9
MCS10
MCS11
MCS12
MCS13
MCS14
MCS15
HT20
HT40
-94
-94
-93
-91
-87
-84
-80
-79
-94
-92
-90
-86
-83
-79
-77
-75
-91
-88
-85
-83
-80
-75
-74
-72
-91
-88
-86
-83
-80
-75
-74
-73
-88
-85
-83
-80
-76
-72
-70
-68
Figure 18-Typical receiver sensitivity for Orthus radio, 5200Mhz band
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CONFIDENTIAL AND PROPRIETARY
2.7.2
Adjacent channel rejection
The adjacent channel rejection is measured by setting the desired signal's strength 3 dB above the rate-dependent
sensitivity specified in the radio receiver minimum sensitivity, and raising the power of the interfering signal until
10% Packet Error Rate (PER) is caused for a PSDU length of 4096 bytes for 1000 packets. The power difference
between the interfering and the desired channel is the corresponding adjacent channel rejection. The interfering
signal in the adjacent channel shall be a conformant OFDM signal, unsynchronized with the signal in the channel
under test.
For more detail about the setup requirements, please read the 802.11n draft section 21.3.21.2
Waveform Data rate
(Mbps)
Modulation
Coding
rate
Adjacent
channel
rejection
(dB) per
802.11 a/b/g/n
draft 2.0
standard
Adjacent
channel
rejection
(dB) per
actual
hardware
Non-adjacent
channel
rejection
(dB) per
802.11 a/b/g/n
draft 2.0
standard
Non-adjacent
channel
rejection
(dB) per actual
hardware
DSSS
35
35
5.5
35
11
35
Meet standard
requirement
Meet standard
requirement
Meet standard
requirement
Meet standard
requirement
Not applicable
Not applicable
Not applicable
Not applicable
OFDM
BPSK
QPSK
QPSK
16-QAM
16-QAM
64-QAM
64-QAM
64-QAM
½
½
¾
½
¾
½
¾
5/6
16
13
11
-1
-2
Meet standard
requirement
Meet standard
requirement
Meet standard
requirement
Meet standard
requirement
Meet standard
requirement
Meet standard
requirement
Meet standard
requirement
Meet standard
requirement
32
29
27
24
20
16
15
14
Meet standard
requirement
Meet standard
requirement
Meet standard
requirement
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requirement
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requirement
Meet standard
requirement
Meet standard
requirement
Meet standard
requirement
Figure 19-Adjacent Channel and non-adjacent channel rejection specification
2.7.3
Non-adjacent channel rejection
The setup is similar to adjacent channel rejection specification. Please refer to Figure 19-Adjacent Channel and nonadjacent channel rejection specification
For Internal Use Only - Do Not Duplicate
Copyright (c) 2009 by Motorola
18
CONFIDENTIAL AND PROPRIETARY
2.7.4
Receiver maximum input signal level
The receiver shall provide a maximum PER of 10% at an PSDU length of 1000 bytes for a maximum input level of
–10 dBm measured at the antenna for any baseband modulation.
2.7.5
Receive inter-modulation distortion
IEEE does not specify this value. However, the radio interception point will be measured, and calculated. The
receiver interception point should reflect an acceptable performance for normal usage of the Orthus AP.
2.7.6
Receiver channel power indicator (RCPI)
The receive channel power indicator also known as RSSI definition is described as follows. The RCPI indicator is a
measure of the received RF power in the selected channel. This parameter shall be a measure by the PHY sublayer
of the received RF power in the channel measured over the entire received frame. The received power shall be the
average over all receive chains. RCPI shall be a monotonically increasing, logarithmic function of the received
power level defined in dBm. The allowed values for the Received Channel Power Indicator (RCPI) parameter shall
be an 8 bit value in the range from 0 through 220, with indicated values rounded to the nearest 0.5 dB as follows:
— 0: Power not > -110 dBm
— 1: Power = -109.5 dBm
— 2: Power = -109.0 dBm
— and so on up to
— 220: Power not < 0 dBm
— 221-254: reserved
— 255: Measurement not available
where
RCPI = int{(Power in dBm +110)*2} for 0 dbm > Power > -110 dBm (21-76)
Accuracy for each measurement shall be +/- 5dB (95% confidence interval) within the specified dynamic range of
the receiver. The measurement shall assume a receiver noise equivalent bandwidth equal to the channel bandwidth
multiplied by 1.1.
For Internal Use Only - Do Not Duplicate
Copyright (c) 2009 by Motorola
19
CONFIDENTIAL AND PROPRIETARY
2.7.7
Data rates and modes supported
Besides the legacy rates for 11 a/g, the following rates are supported. Specifically, MCS0 through MCS15 are
supported with both types of guard intervals (800ns, and 400ns). In combinations of 20MHz and 40MHz channel
bandwidth, there are multiple data rates possible. The figures below summarizes the modes in high throughput
modes.
For Internal Use Only - Do Not Duplicate
Copyright (c) 2009 by Motorola
20
CONFIDENTIAL AND PROPRIETARY
Figure 20-Supported data rates for 20MHz bandwidth
For Internal Use Only - Do Not Duplicate
Copyright (c) 2009 by Motorola
21
CONFIDENTIAL AND PROPRIETARY
Figure 21-Support data rates for 40MHz bandwidth
For Internal Use Only - Do Not Duplicate
Copyright (c) 2009 by Motorola
22
CONFIDENTIAL AND PROPRIETARY
For Internal Use Only - Do Not Duplicate
Copyright (c) 2009 by Motorola
23
RF exposure 20 cm statement
This device complies with FCC radiation exposure limits set forth for an uncontrolled
environment. In order to avoid the possibility of exceeding the FCC radio frequency
exposure limits, human proximity to the antenna shall not be less than 20cm during normal
operation.
Antenna Installation information
Reference antennas have been used during the approval process for the radio card.
Specific details of the reference antenna used for testing is detailed in the table below.
Important Note:
Use of an antenna which is the same ‘type’ (eg. Dipole) and has a gain equal to or less that
the reference antenna can be used without recertification.
Note: The Adapter cable must be considered as it is part of the system gain.
Use of an alternative antenna, different ‘type’ or same ‘type’ but higher gain will invalidate
the country approvals. Under this instant the system integrator is responsible for
re-evaluating the end product and obtaining separate approvals.
Part 15.21 user warning
Any changes or modifications not expressly approved by the party responsible for
compliance could void the user’s authority to operate this equipment.
Part 15.19 a 3
This device complies with part 15 of the FCC Rules. Operation is subject to the following
two conditions: (1) This device may not cause harmful interference, and (2) this device
must accept any interference received, including interference that may cause undesired
operation.
Part 15.105 B
This device has been tested and found to comply with the limits for a Class B digital device,
pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable
protection against harmful interference in a residential installation. This equipment
generates, uses and can radiated radio frequency energy and, if not installed and used in
accordance with the instructions, may cause harmful interference to radio communications.
However, there is no guarantee that interference will not occur in a particular installation If
this equipment does cause harmful interference to radio or television reception, which can
be determined by turning the equipment off and on, the user is encouraged to try to correct
the interference by one or more of the following measures:
-Reorient or relocate the receiving antenna.
-Increase the separation between the equipment and receiver.
-Connect the equipment into an outlet on a circuit different from that to which the receiver is
connected.
-Consult the dealer or an experienced radio/TV technician for help.
The operating bands for the US are 2.4 GHz (2400 -2483.5 MHz) and 5 GHz (5150 - 5250
MHz) and (5725 -5850 MHz).
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