Multi-Frequency IFB Transmitter
Rio Rancho, NM 13
Operating Frequencies: Block 21 537.600 - 563.100 Block 25 640.000 - 665.500
Block 22 563.200 - 588.700 Block 26 665.600 - 691.100
Block 23 588.800 - 607.900 Block 27 691.200 - 716.700
614.100 - 614.300 Block 28 716.800 - 742.300
Block 24 614.400 - 639.900 Block 29 742.400 - 767.900
Frequencies (Channels per block): 256
Channel Spacing: 100 kHz (0.1 MHz)
Spurious & Harmonic Suppression: 1 uW at freq. above 1 GHz
4 nW at freq. below 1 GHz
Frequency Stability: ±.002% (20 ppm) @ 25° C
Temperature Stability: ±.005% (50 ppm) from -30° C to +50° C
Channel Selection: Momentary pushbutton switches, TUNE Up and Down
Pilot Tone: 29.997 kHz
Modulation: FM, ±20 kHz deviation
Audio Response: 100 Hz to 10 kHz, ±1 dB, -3dB (system response)
Audio Compressor: 2 to 1
RF Power Output: 250 mw (nominal)
Output Impedance: 50 ohms
Audio Input Levels: +4 dBu, -6 dBu, and -40 dBu, dry inputs, +/-50Vdc max,
rear panel selectable for Line, Mic, RTS 1, RTS 2, and Clear Comm
Audio Input Config: Balanced and Unbalanced, rear panel selectable
for Line, Mic. RTS 1, RTS 2, and Clear Comm
Audio Input Impedance: Greater than 2 K balanced, greater than 1 K unbalanced
at any gain setting
Gain Control Range: 43 dB, Semi-log Rotary control
Audio Input Jack: Standard XLR female connector
Input Power: 12 to 14 VDC typical, 250 ma. max.; Max. Input Range 11 to 18 VDC
Power Input Jack: Coax type, locking LZR RL26AE
Indicators: LED for -20 dB modulation
LED for 0 dB modulation
4 Digit 7-segment LED displays for frequency and power on
with adjustable brightness
Front panel controls: Audio Level rotary knob
Power OFF-TUNE-XMIT, 3 position slide switch
TUNE Up momentary pushbutton switch
TUNE down momentary pushbutton switch
Rear panel controls: Mode Select, 4 section DIP switch
Weight: 9 oz.
Size: 5.25" long (including connectors) x 3.25" wide x 1.25" high
Specifications subject to change without notice.
Emission designator: 80KOF3E
The T1 IFB transmitter is FCC type accepted under Part 74: 470 - 608MHz and 614 - 806MHz
The FCC requires that the following statement be included in this manual:
This device complies with FCC radiation exposure limits as set forth for an uncontrolled environment. This device
should be installed and operated so that its antenna(s) are not co-located or operating in conjunction with any
other antenna or transmitter.
Specifications
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