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Manufacturer TPL
Model # PA8-2BG-HMS

The HMS series is manufactured for rugged use while combining the latest technology into a space efficient package. These units are totally self contained
with a regulated switching power supply, using only 10 1/2” of vertical rack space and 15” of depth. Internal
circuitry monitors several parameters of the amplifier, including forward and reflected power.
Input and output connectors are located on the rear of the unit, making it convenient to connect coaxial cables. TPL
has made the unit easy to service if necessary. The amplifier RF deck has all wiring contained in one harness, which can
be easily disconnected, allowing only the RF deck to be removed for servicing. A new RF deck could be installed in a
matter of minutes.

• Fully enclosed compact package with switching power supply.
• Digital meter monitoring for system evaluation and maintenance, including forward and reflected power.
• Adjustable output power, feedback controlled.
• Alarms for low power, over temperature, VSWR, and fan failure.
• VSWR protection/power reduction.
• Over temperature protection/power reduction.
• Adjustable alarm and protection thresholds.
• Provision for remote monitoring.
• Forced air cooling with three fans.
• Convenient access for amplifier adjustments.
• Excellent field serviceability.
• Repeater or base station operation (with coaxial antenna switch relay option).
• Other bands and modes available on special order.

Features Mode FM/CW (Linear in some models).
Voltage 120 (240 VAC optional upon request)
Current 4 to 15 Amps AC, depending on model.
Harmonic & Spurious Attenuation Exceeds FCC specifications.
RF Connectors Type N
In/Out Impedance 50 Ohms
Mismatch Capability 20:1 VSWR. Infinite on 800 MHz models if isolator option is
Remote Monitoring Overtemp, Low Power, Fan Failure, System Fault, Forward and
Reflected Power, and other amplifier parameters.
Local Monitoring Front panel digital display and LED indicators.
Overtemp/SWR Protection Proportional reduction of output power.
Operating Temperature -30° to +50° degrees C. Ambient
Duty Cycle Continuous
Weight 45 pounds.
Dimensions 19” W x 10 1/2” H x 15” D.
Storage Temperature -40° C to + 85° C.
Storage Humidity 0% - 95% RH (Non-Condensing),
Operating Humidity 0% - 80% RH (Non-Condensing)
Warranty 2 years parts and labor
Frequency (MHz)
806-960 MHz

Options & Accessories

Power Input (Watts) 4-8 Watts In
Power Output (Watts) 250 Watts Out
Voltage 120 (240 volts Optional upon request)
Connectors 'N' Female
Info email for bulk price discount
Info Download TPL Comm Catalog of Products (PDF)
Warranty 5 years

  • Manufactured by: TPL Communications

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