QEI Transmitters
QUANTUM 1000E1kW FM TRANSMITTER |
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QEI QUANTUM "E" Series advanced technology FM broadcast transmission systems for superior on-air performance. The QUANTUM 1000E establishes a new level in FM performance with the advantage of the highest power emergency back-up available in an exciter style package. QEI took the field-proven design of its exciters and merged them with a high power FET amplifier to deliver un-compromised performance as a transmitter or booster.
The QUANTUM 1000E is an all solid state, broadband, frequency synthesized, "on carrier" direct FM, phase locked, transmission system, designed to exceed the FCC requirements for use in the FM broadcast band.
The QUANTUM 1000E may be programmed to operate on any 100 kHz increment (10 kHz optional) in the FM band. Direct FM "on carrier" operation insures spurious free transmission and extremely low distortion, crosstalk, noise, and no stereo degradation. The frequency modulated oscillator (FMO) has superior linearity and does not require any "pre-distortion" networks to achieve high performance specifications. The FMO is sealed in a specially designed high Mu enclosure to shield it from stray magnetic fields and is acoustically dampened to eliminate microphonics. Sound for sound the QUANTUM "E" will match other FM exciter/transmitters costing twice as much or more.
The Power Amplifier (PA) of the QUANTUM 1000E is unconditionally stable and will withstand any magnitude or phase of VSWR indefinitely without damage by automatically reducing power. The conservatively designed power amplifier can be varied from a few Watts to full output without any oscillation or "break up".
The QUANTUM 1000E is comprised of exciter, amplifier and power supply and takes only 17-1/2" of rack space. The QUANTUM 1000E series when used as an replacement for the exciter and driver make a perfect upgrade for older systems. Complete metering of critical parameters is available at the push of a button. All operational indicators are LED's to eliminate all routine lamp replacement. RF and audio connections are made by way of back panel connectors. A BNC for composite audio and barrier strip for monaural audio are provided on each system. The QUANTUM 1000E uses a 7/8" (1-5/8"optional) EIA flanged connector for RF output and a female Type "N" connector for RF input from the exciter.
QUANTUM "E" Series 150 -
600 Watt
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QEI QUANTUM "E" Series advanced technology FM broadcast transmission systems for superior on-air performance. The QUANTUM "E" establishes a new level in FM performance with the advantage of the highest power emergency back-up available in an exciter style package. QEI took the field-proven design of the model 695 exciter and incorporated a high power FET amplifier to deliver un-compromised performance as a transmitter, exciter, booster or translator**.
The QUANTUM "E" is an all solid state, broadband, frequency synthesized, "on carrier" direct FM, phase locked, transmission system, designed to exceed the FCC requirements for use in the FM broadcast band.
The QUANTUM "E" may be programmed to operate on any 100 kHz increment (10 kHz optional) in the FM band. Direct FM "on carrier" operation insures spurious free transmission and extremely low distortion, crosstalk, noise, and no stereo degradation. The frequency modulated oscillator (FMO) of the QUANTUM "E" has superior linearity and does not require any "pre-distortion" networks to achieve high performance specifications. Sound for sound the QUANTUM "E" will match other FM exciter/transmitters costing twice as much or more. The FMO is sealed in a specially designed high Mu enclosure to shield it from stray magnetic fields and is acoustically dampened to eliminate microphonics.
The Power Amplifier (PA) of the QUANTUM "E" is unconditionally stable and will withstand any magnitude or phase of VSWR indefinitely without damage by automatically reducing power. The conservatively designed QUANTUM "E"'s power amplifier can be varied from a few Watts to full output without any oscillation or "break up".
The QUANTUM 150E, 300E & 600E are housed in a rack space saving dual 5-1/4" package. The QUANTUM "E" series when used as an exciter or replacement for the exciter and driver will fit into virtually all transmitters in use and is the perfect upgrade for older systems.
Complete metering of critical parameters is available at the push of a button. All operational indicators are LED's to eliminate all routine lamp replacement. RF and audio connections are made by way of back panel connectors. A BNC for composite audio and barrier strip for monaural audio are provided on each system. The QUANTUM "E" series between 150 Watts and 600 Watts utilizes a type "N" female output connector. Reliability and simplicity of design and operation make the QUANTUM "E" FM broadcast transmission system an outstanding choice for every FM station.
QUANTUM M-Series
SOLID-STATE FM BROADCAST TRANSMITTERS
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QEI Solid State FM Transmitters,
precision crafted to be the very best. Designed for years of
trouble free service, the totally solid state QUANTUM M-Series
of FM transmitters, provide an unsurpassed broadcast signal. The QUANTUM
M-Series of 1.2 to 5.4 kilowatt transmitters offer the FM broadcaster the
benefits of QEI's unequaled background in FM solid state performance and reliability. QEI
developed the QUANTUM M-Seriesutilizing decades of real-world
field proven experience in solid state FM transmitter design. This completely solid state
design offers significant savings by eliminating tube replacement costs associated with
conventional transmitters. The QUANTUM M-Series offer high
efficiency resulting in additional savings in power consumption and reduced heat loads. For about the same price as tube transmitters, you can now own one of QEI's QUANTUM M-Seriessolid state transmitters and gain the maximum performance advantage. The QUANTUM M-Series of transmitters feature modular power amplifiers and are available in power levels between 1.2 and 5.4 kilowatts in 600 Watt increments. You can buy precisely the amount of power you need. This makes the QUANTUM M-Series of transmitters affordable to own and operate by avoiding the inefficiency of running a higher power transmitter at low output power levels. |
By using modern CAD/CAM techniques and computer assisted manufacturing, QEI has reduced the size of the transmitter to less then 5 feet tall! Yet even in this small package, the QUANTUM M-Series houses the exciter/driver, FET power amplifier modules, output combiner, power supplies and harmonic filter/directional coupler assemblies in one unit.
QEI engineers designed the QUANTUM M-Seriesto deliver
what broadcasters need...
RELIABILITY.
Every step of the way QEI selected only the highest quality components. You can feel it in
the ergonomically placed controls and metering, and see it in the attention to detail on
the FET power amplifier modules. The QUANTUM M-Series are
expertly crafted to be the best broadcast transmitters available in the world today!
The QUANTUM M M - exciter was specifically designed with the needs of a high power solid state transmitter. No other transmitter manufacturer has taken such care in the development of the entire transmitter/exciter package. QEI developed the first truly linear frequency modulated oscillator (FMO) over 20 years ago with our best selling Model 675 exciter. The QUANTUM M continues the tradition with our new Super-Linear FMO. This new advance in FMO technology is the secret to the QUANTUM M-Series transmitter's outstanding broadcast audio performance.
The power amplifier modules are comprised of four FET's combined for 600
Watts of output power. Each module is fed by a self aligning connector to state-of-the-art
solid-state combiner. This provides reliable, low-loss matching and isolation of the power
amplifiers. Filtered air positively pressurizes the cabinet eliminating dust infiltration.
The power amplifier module compartment has multiple, super quiet fans for redundancy and
to ensure even cooling of all modules.
QEI pioneered single phase high power transmitter design and continues to dominate the industry by manufacturing the QUANTUM M-Series with a single phase power supply.
QEI's QUANTUM M-Seriesof Solid-State FM Broadcast Transmitters are designed and manufactured with pride in the U.S.A.
SOLID-STATE FM BROADCAST TRANSMITTERS
QUANTUM Series 6.0 to 9.6 kW
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QEI Solid State FM Transmitters, precision crafted to be the very best. Designed for years of trouble free service, the totally solid state QUANTUM Series of FM transmitters, provide an unsurpassed broadcast signal. The QUANTUM Series of 6.0 to 9.6 kilowatt transmitters offer the FM broadcaster the benefits of QEI's unequaled background in FM solid state performance and reliability. QEI developed the QUANTUM Series utilizing decades of real-world field proven experience in solid state FM transmitter design. This completely solid state design offers significant savings by eliminating tube replacement costs associated with conventional transmitters. The QUANTUM Series offer high efficiency resulting in additional savings in power consumption and reduced heat loads. For about the same price as tube transmitters, you can now own one of QEI's QUANTUM Series solid state transmitters and gain the maximum performance advantage. The QUANTUM Series of transmitters feature modular power amplifiers and are available in power levels between 6.0 and 9.6 kilowatts in 1200 Watt increments. You can buy precisely the amount of power you need. This makes the QUANTUM Seriesof transmitters affordable to own and operate by avoiding the inefficiency of running a higher power transmitter at low output power levels. By using modern CAD/CAM techniques and computer assisted manufacturing, QEI has produced an internal modular system that is unrivaled for its ease of maintenance and upgrade ability. Yet even in this package, the QUANTUM Series house the exciter/driver, FET power amplifier modules, output combiner, power supplies and harmonic filter/directional coupler assemblies in one unit. QEI engineers designed the QUANTUM Series to deliver what broadcasters need... RELIABILITY. Every step of the way QEI selected only the highest quality components. You can feel it in the ergonomically placed controls and metering, and see it in the attention to detail on the FET power amplifier modules. The QUANTUM Series are expertly crafted to be the best broadcast transmitters available in the world today! |
The QUANTUM Exciter was specifically designed with the needs of a high power solid state transmitter. No other transmitter manufacturer has taken such care in the development of the entire transmitter/exciter package. QEI developed the first truly linear frequency modulated oscillator (FMO) over 20 years ago with our best selling Model 675 exciter. The QUANTUM Exciter continues the tradition with our new Super-Linear FMO . This new advance in FMO technology is the secret to the QUANTUM Series transmitter's outstanding broadcast audio performance
The power amplifier modules are comprised of four FET's combined
for 600 Watts of output power. Each module is fed by a self aligning connector to the high
power state-of-the-art solid-state combiner . 
This provides reliable, low-loss matching and
isolation of the power amplifiers. Filtered air positively pressurizes the cabinet
eliminating dust infiltration. The power amplifier module compartment has multiple, super
quiet fans for redundancy and to ensure even cooling of all modules.
QEI pioneered single phase high power transmitter design and continues to dominate the industry by manufacturing the QUANTUM Series with a single phase power supply.
QEI's QUANTUM Series of Solid-State FM Broadcast Transmitters are designed and manufactured with pride in the U.S.A.
FM BROADCAST TRANSMITTERS
FMQ-Series 3.5 kW, 5 kW, 8 kW 10 kW
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QEI FMQ Series FM Transmitters, precision crafted to be the very best. The FMQ-3500, FMQ-5000, FMQ-8000 and FMQ-10000 share unique design elements that offer unequaled performance at any price. Conservatively designed for years of trouble free service the FMQ-Series provide a superb broadcast signal. The FMQ-3500, FMQ-5000 FMQ-8000 and FMQ-10000 utilize an inherently broadband design that is totally transparent. The Intermediate Power Amplifier (IPA) design draws on decades of QEI experience in solid state FM transmitters. The IPA is joined to a single grounded grid triode for outstanding performance and stability. These elements have evolved into a transmitter unmatched for its quality and reliability. QEI engineers designed the FMQ-series to deliver what broadcasters need, RELIABILITY. Every step of the way QEI selected only the highest quality components. You can feel it in the smooth and precise control of the tuning and see it in the massive plate transformer. The FMQ series are the best broadcast transmitters available. The all solid state modular IPA delivers plenty of drive to the Power Amplifier (PA) tube, allowing generous headroom to ensure the output power remains precisely at its pre-set level. The FMQ-3500, FMQ-5000 FMQ-8000 and FMQ-10000 power amplifiers use a single triode in grounded grid service. The grounded grid triode design offers inherently greater stability, better performance and is less critical in operation than its tetrode counterparts since it requires no neutralization or additional energy consuming power supplies. QEI perfected this design by eliminating the need for conventional plate blockers and sliding contacts. Tube life in the FMQ-3500, FMQ-5000 and FMQ-10000 is so outstanding, that QEI quarantees the PA tube operation for 15,000 Hours or Two Years (see warranty for specific details) QEI is pleased to include our spare parts kit free with every FMQ-series transmitter. QEI pioneered single phase high power designs and continues to dominate the industry by offering the option of single and three phase power on all FMQ-series transmitters. |
QEI FMQ-20000B/30000B
Single Tube FM Transmitters
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QEI FM Transmitters, are the very best.
The FMQ-20000B and FMQ-30000B share a unique design that offers unequaled performance at any price. Conservatively designed for years of trouble free service QEI FM Transmitters provide a superb broadcast signal. The FMQ-20000B and FMQ-30000B utilize an inherently broadband design that is totally transparent. The Intermediate Power Amplifier (IPA) design draws on decades of QEI experience in solid state FM transmitters. The IPA is joined to a single grounded grid triode for outstanding performance and stability. These elements have evolved into a transmitter unmatched for its quality and reliability. QEI engineers designed the FMQ-20000B and FMQ-30000B to deliver what broadcasters need, RELIABILITY. Every step of the way QEI selected only the highest quality components. You can feel it in the smooth and precise control of the tuning and see it in the massive plate transformer. The FMQ series of transmitters, precision crafted to be the very best. The all solid state modular IPA delivers plenty of drive to the final tube, allowing generous headroom to ensure the output power remains precisely at its pre-set level. |
The FMQ-20000B and FMQ-30000B power amplifiers use a single triode in grounded grid service. The grounded grid triode design offers inherently greater stability, better performance and is less critical in operation than its tetrode counterparts since it requires no neutralization or additional energy consuming power supplies. QEI perfected this design by eliminating the need for conventional plate blockers and sliding contacts.
QEI pioneered single phase high power design and continues to dominate the industry by offering the option of single and three phase power on all FMQ-series transmitters.
Logically grouped metering and controls were clearly identified for the operator's convenience and a single panel shows total transmitter status at a glance. The remote control interface is easily connected to virtually all remote controls. With every FMQ-series transmitter a comprehensive spare parts kit is included at no charge. QEI FM transmitters are designed and manufactured with pride in the USA.
