Telex btr-1 Intercom System User Manual


 
Sec tion
4
Spec i fi ca tions
4-1
BTR-1
Spec i fi ca tions
Over all
RF Fre quency Range ..................................482 - 608 MHz, 614 - 746 MHz in 18 MHz TX and RX bands
Power Re quire ments............................................................12-15 Volts AC/DC @ 1 Amp
Tem per a ture Range...........................................................-4° F to 130° F (-20° C to 55° C)
Di men sions............................................8.25” W x 1.72” H x 9.00” D (20.9 cm x 4.4 cm x 22.9 cm)
Weight ...............................................................................3 lbs 8 oz (1.59 kg)
TX An tenna .........................................................½ Wave (sup plied), TNC Male Con nec tor
RX An tenna .........................................................½ Wave (sup plied), TNC Male Con nec tor
FCC ID: .....................................................................................B5DM519
Fre quency Re sponse ........................................................................100Hz-4.0kHz
Four Wire In put ............................................................Level Ad just able (2 Vrms typ i cal)
Four Wire Out put ...........................................................Level Ad just able (2 Vrms typ i cal)
Telex In ter com................................In put/Out put Level Ad just able (1 Vrms typ i cal), Line im ped ance 300W
RTS In ter com .............................In put/Out put Level Ad just able (0.775 Vrms typ i cal), Line Im ped ance 200W
ClearCom® In ter com .......................... In put/Out put Level Ad just able (1 Vrms typ i cal), Line Im ped ance 200W
Aux il iary In put .............................................................Level Ad just able (2 Vrms typ i cal)
Aux il iary Out put ...................................................Level Ad just able (2 Vrms typ i cal into 600W)
Mi cro phone in put sen si tiv ity ............................................................10mV (200W Source)
Lo cal Head set Out put .................................................200mW out put into 150W (1% Dis tor tion)
Mute of Wire In come Port....................................................100 dB (30kHz Low Pass Fil tered)
Trans mit ter
Type ..................................................................Syn the sized Trans mit ter, 720 chan nels
Trans mit Power ...................................................50mW typical (High), 5 mW typical (Nor mal)
Mod u la tion Type.................................................................................GMSK
De vi a tion.......................................................................Com plies with FCC 74.861
RF Fre quency Sta bil ity............................................................................0.005%
Ra di ated Har mon ics & Spu ri ous ....................................................Ex ceeds FCC spec i fi ca tions
Re ceiver
Type .....................................................Dual Con ver sion Super het ero dyne, 720 chan nels each
RF Sen si tiv ity....................................................................<0.8 µV for 12 dB SINAD
IF Se lec tiv ity ............................................................................3 dB at 230 kHz
Im age Re jec tion ...........................................................................70 dB or better
RF Fre quency Sta bil ity............................................................................0.005%
Dis tor tion ..............................................................................<1% at peak level
S/N Ra tio out to wired In ter com Ports ...........................................80 dB (30kHz Low Pass Fil tered)