Economical u Single Tube u Grounded Grid
Medium Power u FM Broadcast Transmitters
ECO - 4 u ECO - 6 u ECO - 8 u ECO - 10 u ECO - 12
|1. FULL FINAL STAGE METERING
— The ECO series transmitter design allows complete final stage
metering for grid current, plate current, plate voltage, forward and
2. OUTPUT TUNING & LOADING — These independent controls are the same heavy duty adjustments which
Energy-Onix uses in its transmitters up to 50KW.
3. PA INPUT & LOADING CONTROLS
— The convenient location of these controls, on the front panel
directly under the Output Tuning and Loading Controls, ensures a quick
and perfect match of the IPA with the PA Tube.
4. FILAMENT ADJUSTMENT KNOB
— Maintaining proper filament voltage extends the tube life of the PA.
This adjustment is located on the transmitter front panel to allow for
ease in adjustment. The triode tube PA normally lasts 15,000 to 20,000 hours.
5. RELIABLE STRAIGHT FORWARD CONTROLLER —
The ECO control center is designed for simplicity and reliability. A
detailed description is featured on the back page of this literature
6. INDEPENDENT IPA —
(Not Shown) Located for easy access behind the hinged "Control Center"
panel the ECO solid state IPA is designed for years of trouble free
performance. Energy-Onix incorporated the same SSA300M solid state
modules used in our low and high power solid state transmitters in this
independent IPA system. This broadband unit includes an independent
power supply and it can be patched on the air as an emergency backup
transmitter. IPA protection circuits include VSWR Foldback and Thermal
Protection. A 300 watt IPA is used in the ECO 4, 6 and 8 while the
ECO-10 utilizes a 500 watt IPA. IPA parameters are monitored on the
Multimeter located on the transmitter"s meter panel.
7. CIRCUIT BREAKER PROTECTION
— Every major circuit in the ECO series is protected by fast acting
circuit breakers. All circuit breakers are conveniently located for
easy access on the ECO "Control Center." There are independent breakers
for the blower, filament, IPA and PA Power Supplies as well as the main
transmitter circuit breaker.
9. HARMONIC FILTER
— Internally mounted the Energy-Onix three section filter ensures
harmonic suppression well below FCC required parameters. This internal
configuration also allows the ECO series to be placed in transmitter
buildings with floor space and height restrictions.
10. AIR PRESSURE SWITCH
— This is a very reliable, modern method of measuring positive air
pressure within the PA cavity. This switch interfaces with the air
interlock which shuts down the transmitter if air pressure is impeded,
thus preventing damage to the tube caused by overheating.
11. POWER AMPLIFIER CAVITY — Our quarter wave design features full accessibility for easy tube replacement. This design also results in maximum bandwidth.
12. CAPACITANCE COUPLED BLOCKER
— Even with these economy model transmitters Energy-Onix gives you the
latest in proven technology. Our patented Capacitance coupled blocker
system increases transmitter reliability and eliminates the downtime
caused by traditional and now obsolete Teflon plate blockers.
13. ZERO BIAS HIGH-MU TRIODE TUBE
— This is the heart of the ENERGY-ONIX design, which was pioneered and
introduced to the broadcast community in 1962 by Bernard Wise, our
company President. A special section below describes in detail the many
features of the triode tube when used in Bernie"s grounded grid circuit.
14. FILAMENT TRANSFORMER
— To help extend tube life and to afford greater control over the tubes
filament voltage, the ECO series features a separate Filament
transformer with multiple primary taps. An optional filament voltage
regulator is also available.
15. HIGH VOLUME BLOWER
— The ECO"s conservative design utilizes a Low Noise/High Volume blower
which provides a maximum of air flow. This overabundance of cooling air
ensures a low operating temperature and extended tube life of the PA
PA efficiencies of 80% are attainable in all Energy-Onix transmitters
due to the over-abundance of RF drive and unique loss-less circuitry.
|In addition Tube life in Energy-Onix
transmitters historically averages between 3 to 5 years. Several
factors aid in maximizing tube life including, adequate transmitter
building cooling, proper power regulation, and cleanliness of the
16. REMOTE CONTROL CONNECTIONS
— Connections for all remote control metering are easily made on the
terminal strip conveniently located on the transmitter"s center shelf.
17. POWER SUPPLY
— Regulated power supplies are used for the ECO controller and IPA.
Peter Dahl Transformers and Chokes are used in the full wave bridged
rectified plate supply.
18. LINE SURGE PROTECTION
— Energy-Onix offers this protection as a standard feature. Varistors
installed on the incoming power line help prevent surges from damaging
your transmitter. (Not shown)
The ECO Control Center
ECO Controller: — Simple and Reliable
Energy-Onix has gone to extremes to reduce the complexity of the ECO
controller by eliminating all non essential circuitry which represented
sophistication not desired by the budget conscious broadcaster. The
result is a modern control system which contains no electronic memory
or computer chips. The controller is designed to give transmitter
status at a glance. LEDs are used to indicate status of the transmitter
operation including Interlocks, VSWR and Automatic Power Control.
Single Button Operation:
One touch of the start switch, in either, local or remote position,
turns the transmitter on. Once filament warm-up occurs the transmitter
will automatically activate, provided all interlocks are closed.
Circuit Breaker Protection:
Every major circuit in the ECO series is protected by circuit breakers.
Independent circuit breakers for the blower, filament, IPA and PA power
supply are conveniently located on the ECO Control Center.
The ECO series is designed for both local and remote operation. Start,
stop, VSWR and overload reset, and metering are available at the remote
Energy-Onix keeps Safety
as a high priority. All panel and door access to the transmitter is
protected by interlocks which shut down the transmitter if access
panels are removed while the transmitter is operational. Interlocks are
found on the rear door, the PA cavity front cover and the hinged
"control center" panel. An interlock is also used for the cover of the
ECO 8 and 10 power supply vault. Interlock status is available on the
ECO control system.
The ECO series transmitter is supplied with the
Energy-Onix SST-30 Exciter. Please see the Exciter literature for specifications and features.
ECO series transmitters including the solid state IPA are manufactured by Energy-Onix at our Valatie, NY factory.
Specifications listed on this Web Site are subject to change without notice.
||1KW - 4KW
||6,500 watts @ 4KW
||1KW - 6KW
||9,595 watts @ 6KW
||1KW - 8KW
||12,300 watts @ 8KW
||1KW - 11KW
||14,800 watts @ 10KW
86 - 108 mHz (50-150 mHz optional)
+ 100 KHz
At least 83db below carrier
At least 55db below carrier
Please see Exciter Specs
198 to 250 VAC, 50 or 60HZ, Single or Three phase
Please see Exciter Specs.
50 ohm; ECO-2 to ECO-2.5: 7/8" flange; ECO-4 to ECO-10: 1 5/8" EIA flange
ECO 4 to ECO-10: 24" x 72" x 31" (W x H x D)
Power Supply Cabinet (ECO-8 and ECO-10 only):
24" x 36" x 36" (W x H x D)
Exciter Drive Requirements:
70 W - ECO-2; 90W - ECO-2.5; 10 W - ECO-4,
ECO-6 and ECO-8;
20 W - ECO-10
ECO-4 to ECO-6: 3CX3000A7;
ECO-8 and ECO-10: 3CX6000A7 / YU148