SMT Station Monitor

$205.50$280.50

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SKU: SMT Category:

Description

The SMT station monitor is recommended for higher power (QRO) operation. It does not include the optional detector biasing supply. When connected to a low cost oscilloscope, it allows the adjustment and tuning of the entire transmitting chain including the transceiver, RF amplifier, and other components. It is designed for transceiver output levels of up to 100 Watts driving linear RF amplifiers. It features a wide band sampler, a high performance demodulator, a variable base band output and an oscilloscope trigger output.

A Linear RF amplifier commonly amplifies an RF signal from 20-100 Watts by 20dB or more to about 500-1,500 Watts. Its performance and modulation can be characterized using a spectrum analyzer or a low cost oscilloscope using a trapezoid display.

Each SMT Station Monitor comes completely assembled in a premium shielded die cast aluminum alloy A380 housing. Each housing is blue baked enamel per Federal Standard 595 #25109 over primer wash per DOD-P-15328.

 

datasheet SMTv2

Appnote 1 Trapezoid test(2)

Appnote 6 Station montor selection(2)

Appnote 4 Measuring RF power with an oscilloscope

Additional information

Weight 1 lbs
Dimensions 4 x 3 x 1.2 in
Specifications high level sampler

Max input power: 1,500 Watt PEP crest factor 4:1 Insertion loss: Negligible (< .01 dB) Bandwidth: 1-100 MHz (useable to 250 MHz) Impedance RF IN: 50ohm Impedance RF OUT: 50ohm Impedance sampler out: 50ohm VSWR: Better than 1:1.1 Return loss: > -25dB Sampler output level: -30dB +/- 1dB Sampler power gain: 0.001 Samper voltage gain: 0.0316 (1v/div=31.6V) Connectors RF IN/OUT: SO-239 Connector sampler OUT: BNC Impedance RF OUT: 50 ohm Impedance sampler out: 50 ohm VSWR: 1:1.1 or less Return loss: >25dB Sampler output level: -30dB Sampler power gain: 0.001 Samper voltage gain: 0.0316 (1v/div=31.6V) Connectors RF IN/OUT: SO-239 Connectors sampler OUT: BNC

Specifications demodulator RF IN/OUT

Baseband RF detection: AM and SSB Bandwidth Baseband: 10Hz – 30KHz Spurious THD: < -60dB Linearity 5-100% modulation: Better than <1% Linearity 0-5% modulation: Better than <10% Rise/fall time: < 10us aberrations less than 5% Output modulation level: -20dB externally variable Output trigger level: >1.5V p-p Impedance DEMOD OUT: 47K Impedance TRIGGER OUT: 47K

Specifications demodulator

Baseband RF detection: AM and SSB Spurious THD: < -60dB Linearity: 5-100 Watt 1-95% Rise/fall time: < 10us aberrations less than 5% Output coefficient: -20dB externally variable Impedance DEMOD OUT: 47K Impedance TRIGGER OUT: 47K

Application

Ideally suited for monitoring, testing and analyzing transceiver and RF amplifier transmitters signals using the trapezoid method; includes a high power sampler/coupler signal conditioner and integrated SSB and AM baseband demodulator.

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