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Armstrong Transmitters

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Experience World Class Quality and Reliability! arm.gif (6134 bytes)
Broadcasters demand world-class performance from their RF Chain. Armstrong meets this demand easily and cost effectively. The focus is to offer innovative, cost effective solutions for broadcast station owners and engineers who expect excellent quality, reliability and exceptional customer support. Service after the sale...24 hour support when you buy Armstrong through EBS! broadcast_produts.jpg (98781 bytes)
Armstrong Transmitter has earned the reputation for building Rock Solid FM Transmitters designed for continuous use and high reliability. The "T" of single tube, grounded grid transmitters are feature rich and priced to fit any budget. The STX line of Solid State Transmitters are the most rugged and robust
Solid State Transmitters available. Both the single tube design and solid state transmitters are HD Radio*
Compatible once linearized.
Armstrong's SC line of FM Solid State offers you the maximum redundancy available in solid-state transmitters today.

Our design utilizes a building block approach to achieve the required transmitter output power. The design is based on FM-1000SC. Multiples of this self-contained, 1KW amplifier are rack mounted with an appropriately sized driver and externally combined.

The FM-1000SC contains two, high efficient and robust switching power supplies. Each power supply provides power to two 300 watt, BLF-278 Mosfets. The four BLF 278s are combined to conservatively achieve the 1KW rated amplifier output.

Each output device is thermostatically protected and protected against excessive VSWR by a fold back circuit, which proportionally reduces power when VSWR is present. In addition the transmitter combiner also triggers fold back when external VSWR is detected.

System parameters for each amplifier and the system combiner are available for remote monitoring via DB25 connector located on the rear panel of their chassis.

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PDF Links to FM Transmitter Literature:
(to download the files, right click on the link and choose 'Save Target As' ...otherwise, left click to open)
CLICK ON ARMSTRONG TRANSMITTER MODEL FOR DETAILS

FM-1000SC    FM-10000STX    FM-2000STX     FM-2000B    FM-3000STX  FM-5000STX
 

 

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Armstrong's Single Tube Transmitters have become affectionately known as "Work Horses". The grounded grid, broadband PA design, offers several benefits not found in other transmitter designs.

NO Neutralization: A single tube in this configuration never oscillates and does not need to be neutralized. This design is also the most stable transmitter design available.

Exceptional Tube Life: Depending on the power level of your transmitter you may experience tube life up to 5 years or more.

Low AM Noise: The broadband design of the PA offers the lowest AM noise levels to be found in a tube transmitter.

Each of Armstrong's single tube transmitters offer our unique PA thermostatic protection. If there is an occurrence which causes the PA temperature to rise above the factory preset the Transmitter control circuitry will shut the transmitter down and alarm of the condition before damage can occur to the PA. VSWR protection and easy remote control hook up are all standard feature regardless of transmitter power level.

     PA Cavity (Left)                                       ROLL OUT POWER SUPPLY (Right)

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Single Tube Low Power:

Single Tube Medium Power

 Single Tube High Power

FM-1000TX

 FM-5000T2 FM-20000T2

FM-1500TX

 FM-10000T2 FM-25000T2

FM-2000TX

 FM-15000T2 FM-30000T2

FM-3500TX

    

 

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This website contains many photos of equipment sold by EBS. Photos, logos and descriptions of equipment are reproduced here by permission. EBS is not reponsible for incorrect information copiedby permission  from another companies website.

The EBS Main Office is in Albany, Oregon  and we may be reached by calling our toll free sales number, 1-888-830-8223 or our cell number at 541-460-0249. You may send mail to PO Box 2575, Albany, OR 97321. We have closed our Madras Oregon Office.

Since prices fluctuate, Not all prices listed on this site may be current, we apologize in advance for any misunderstandings.

EBS is not responsible for actual prices which may vary from published prices.

Last modified: December 20, 2005