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N2420BT Operating Manual: 

 

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FCC User Notice Sec 15.105: 
 

NOTE: This equipment 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 radiate 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. 

 

FCC Avis utilisateur Sec 15.105:

 

 

REMARQUE: Cet équipement a été testé et trouvé conforme aux limites pour un appareil numérique de classe B, 
conformément à la partie 15 des règlements de la FCC. Ces limites sont conçues pour fournir une protection 
raisonnable contre les interférences nuisibles dans une installation résidentielle. Cet équipement génère, utilise et 
peut émettre des fréquences radio et, s'il n'est pas installé et utilisé conformément aux instructions, peut provoquer 
des interférences nuisibles aux communications radio. Cependant, il n'existe aucune garantie que ces interférences 
ne se produiront pas dans une installation particulière. Si cet équipement cause des interférences nuisibles à la 
réception radio ou télévision, qui peut être déterminé en mettant l'équipement hors tension, l'utilisateur est 
encouragé à essayer de corriger l'interférence par une ou plusieurs des mesures suivantes: 
- Réorienter ou déplacer l'antenne réceptrice. 
- Augmenter la distance entre l'équipement et le récepteur. 
- Connecter l'équipement à une sortie sur un circuit différent de celui auquel le récepteur est connecté. 
- Consulter le revendeur ou un technicien radio / TV qualifié. 
 

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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