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N2420BT Operating Manual: 

 

iii

 

N2420BT Regulatory Requirements 

 

 WARNING

:   

To satisfy FCC RF exposure requirements for both base and mobile a separation distance of 23 cm or more 

should be maintained between the antenna of this device and persons during device operation. To ensure 
compliance, operations at closer than this distance is not recommended.  The antenna used for this transmitter 
must not be co-located in conjunction with any other antenna or transmitter. 

 

 

 WARNING

:   

Changes or modifications not expressly approved by Microhard Systems Inc. could void the user’s authority to 
operate the equipment. This device has been tested with MMCX and Reverse Polarity SMA connectors with the 
antennas listed in Appendix A When integrated in OEM products, fixed antennas require installation preventing 
end-users from replacing them with non-approved antennas. Antennas not listed in the tables must be tested to 
comply with FCC Section 15.203 (unique antenna connectors) and Section 15.247 (emissions). 

 

 WARNING

:   

To ensure compliance with all non-transmitter functions the host manufacturer is responsible for ensuring 
compliance with the module(s) installed and fully operational. For example, if a host was previously authorized as 
an unintentional radiator under the Declaration of Conformity procedure without a transmitter certified module 
and a module is added, the host manufacturer is responsible for ensuring that the after the module is installed and 
operational the host continues to be compliant with the Part 15B unintentional radiator requirements. Since this 
may depend on the details of how the module is integrated with the host, the grantee (the party responsible for the 
module grant) shall provide guidance to the host manufacturer for compliance with the Part 15B requirements. 

 

 WARNING

MAXIMUM EIRP 
FCC Regulations allow up to 36 dBm equivalent isotropically radiated power (EIRP).  Therefore, the sum 
of the transmitted power (in dBm), the cabling loss and the antenna gain cannot exceed 36 dBm.   
 

 WARNING

EQUIPMENT LABELING 
The FCC and IC numbers depend on the model of the radio module. Do NOT use the Marketing Name of the product 
but the Model to distinguish the Certifications Numbers.  This device has been modularly approved.  The 
manufacturer, product name, and FCC and Industry Canada identifiers of this product must appear on the outside 
label of the end-user equipment. 

 
 

SAMPLE LABEL REQUIREMENT for Model: N2420BT: 

 
 
 

 
 

 
 
 
 
 

Contains:    

FCCID: NS912P32     IC : 3143A-12P32 

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. 

Summary of Contents for n2420BT

Page 1: ...Operating Manual n2420BT 2400 MHz Spread Spectrum OEM Transceiver Revision 0 60 July 19 2012 Phone 403 248 0028 Fax 403 248 2762 www microhardcorp com Model N2420BT Microhard Systems Inc...

Page 2: ...TIONAL WARRANTY Indemnification The Purchaser shall indemnify Microhard Systems Inc and its respective directors officers employees successors and assigns including any subsidiaries related corporatio...

Page 3: ...ation of Conformity procedure without a transmitter certified module and a module is added the host manufacturer is responsible for ensuring that the after the module is installed and operational the...

Page 4: ...tu de la D claration de la proc dure de conformit sans un module metteur et d un module certifi est ajout le fabricant d h te est responsable de s assurer que les fois que le module est install et op...

Page 5: ...eiver is connected Consult the dealer or an experienced radio TV technician for help FCC Avis utilisateur Sec 15 105 REMARQUE Cet quipement a t test et trouv conforme aux limites pour un appareil num...

Page 6: ...ights ii N2420BT Regulatory Requirements iii CONTENTS VI 2 GENERAL 1 2 0 PRODUCT OVERVIEW 1 2 1 OUTPUT POWER LEVEL 2 3 INSTALLATION 3 3 0 OVERVIEW 3 3 1 ESTIMATING THE GAIN MARGIN 3 3 2 ANTENNAS AND C...

Page 7: ...pectrum1 this means that it can be used without access fees such as those incurred by cellular airtime a serial I O data port with handshaking and hardware flow control allowing the N2420BT to interfa...

Page 8: ...power levels so it is recommended that the lowest power necessary is used using excessive power contributes to unnecessary RF pollution Ideally you should test the communications performance between u...

Page 9: ...nsmitter receiver pair The number can be calculated based on knowledge of the equipment being deployed The following four factors make up a system gain calculation 1 Transmitter power user selectable...

Page 10: ...ween system gain and path loss Referring to the same example suppose the path loss is 100 dB the gain margin would be 40 dB which is more than adequate for reliable communication Path loss is a very c...

Page 11: ...procedure for installing cabling and antennas for use with the N2420BT module 3 2 1 Internal Cabling The most common method for installing the module is to run a cable from the module s MCX connector...

Page 12: ...stors The most effective protection against lightning is to install two lightning surge arrestors one at the antenna the other one at the interface with the equipment The surge arrestor grounding syst...

Page 13: ...uipment If the equipment is in a fixed location and is to communicate with only one other unit also in a fixed location then a Yagi antenna is suitable Choose a Yagi with enough gain to ensure adequat...

Page 14: ...m to the maximum power setting of 30dBm Example 2 What is the maximum power the N2420BT can be set to comply with FCC and IC given the following equipment given a Yagi Ant Gain 12dBd and cable and con...

Page 15: ...Microhard Systems Inc could void the user s authority to operate the equipment This device has been tested with MMCX and Reverse Polarity SMA connectors with the antennas listed in Appendix A When int...

Page 16: ...son gain de sorte que la puissance isotrope rayonn e quivalente p i r e ne d passe pas l intensit n cessaire l tablissement d une communication satisfaisante Le pr sent metteur radio IC 3143A 12P32 a...

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