HMS Series
HMS
The HMS Series is designed to provide high power output from VHF Low Band through 960 MHz. It 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.
FEATURES
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.
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.
SPECIFICATIONS
Power Input 75 mW to 70 Watts as specified.
Power Output 300 Watts VHF Low Band (29.7-50MHz), 250 or 500 Watts VHF High Band (136-174MHz), 300 Watts UHF (406-512MHz), 250 Watts (806-960MHz).
Mode FM/CW (Linear in some models).
Voltage 120/240 VAC
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 selected.
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 Gradul 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
Warranty Three years parts and labor
MODEL NO POWER IN POWER OUT
VHF LOW BAND 35 TO 50 MHz
PA1-3AF-HMS 2-4 W 300 W
PA1-3BF-HMS 4-8 W 300 W
PA1-3CF-HMS 8-15 W 300 W
PA1-3DF-HMS 15-25 W 300 W
PA1-3FF-HMS 25-35 W 300 W
PA1-3GF-HMS 35-70 W 300 W
VHF HIGH BAND 136 TO 174 MHz
*PA3-2EF-HMS 500mW-1 W 250 W
PA3-2AF-HMS 1-2 W 250 W
PA3-2BF-HMS 2-4 W 250 W
PA3-2CF-HMS 4-6 W 250 W
PA3-2DF-HMS 8-12 W 250 W
PA3-2FF-HMS 15-25 W 250 W
PA3-2GF-HMS 30-50 W 250 W
     
PA3-2EG-HMS 1-2 W 500 W
PA3-2AG-HMS 2-4 W 500 W
PA3-2BG-HMS 4-8 W 500 W
PA3-2CG-HMS 8-12 W 500 W
PA3-2DG-HMS 15-25 W 500 W
PA3-2FG-HMS 30-50 W 500 W
PA3-2GG-HMS 60-100 W 500 W
UHF 400 TO 512 MHz
*PA6-2EF-HMS 75-150 mW 300 W
PA6-2BF-HMS 5-12 W 300 W
PA6-2GF-HMS 20-45 W 300 W
UHF HIGH BAND 800-960 MHz
*PA8-2EG-HMS 10mW-1 W 250W
PA8-2BG-HMS 4-8 W 250 W
PA8-2CG-HMS 8-15 W 250 W
PA8-2DG-HMS 15-30 W 250 W
PA8-2FG-HMS 30-60 W 250 W
*Input level must be specified at time of order.  
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