Instruction Sheets for Part Number RMY-LA-250V
Technical Articles for Part Number RMY-LA-250V
RM ITALY LA 250 Series VHF Linear Amplifiers
Amplifier, Linear, VHF, 140-150 MHz, 2m, 15W Maximum Input, 200 W Output, w/ Cooling Fans, Each
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Overview
Brand:
Manufacturer's Part Number:
LA-250V
Part Type:
Product Line:
DXE Part Number:
RMY-LA-250V
Amplifier Type:
Solid state
Amplifier Band Coverage:
2 meters
Frequency Range:
140-150 MHz
RF Output Maximum Power:
200 watts
RF Input for Maximum Output:
12 watts
Built-In Preamplifier:
No
RF Sense Keying:
Yes
Keying Connector Type:
RCA phono female jack
Remote Control Connector:
None
DC Supply Voltage:
13.8 Vdc
DC Supply Current:
40 A
RF Connector Type:
UHF female, SO-239
Amplifier Width:
9.500 in.
Amplifier Height:
3.750 in.
Amplifier Depth:
16.750 in.
Quantity:
Sold individually.
Notes:
Optional 10 AWG power wire is minimum requirement for 40A continuous at 13.8 Vdc. DC cord not supplied. Depending upon SWR and input voltage, 200 W maximum output typical with 10-12 watts input, 15 watts maximum for a low distortion signal.
RM ITALY LA 250 Series VHF Linear Amplifiers
RM ITALY LA 250 Series VHF linear amplifiers are wideband, compact amplifiers covering 140 to 150 MHz. Available in two models, the only difference is that the LA 250 V includes a pair of cooling fans while the LA 250 does not.
These high-power 2-meter amplifiers will provide up to 200 watts FM output.
*** Note: Amplifier Color may vary. NOT compatible with DMR and P25 modes
LA 250 Series details:
* Frequency range: 140 to 150 MHz continuous
* Input drive: 1 to 15 watt (maximum). Typically 10 to 12 watts in for 200 watts out
* FM output power: 200-watt maximum
* Modulation types: SSB, CW, AM, FM, data (switch selectable AM/FM or SSB)
* PTT input or RF sense operation
* LCD amplifier status screen:
-- Input power
-- Output power
-- SWR
-- Heatsink temperature
* Internal low-pass filter
* Self protection: Reverse polarity, high temperature, load VSWR, and excessive input power
* Input VSWR: 1.1 to 1.5:1
* Output VSWR limit: 2.8:1
* SWR power foldback
* Optionally cooled version with multispeed fans (LA 250 V)
* Supply voltage: 12 to 14Vdc
* Maximum DC current: 30A
* Internal power fuses: three 10-amp (5x20mm Fast Blow)
* Maximum bypass power (amplifier off): 50 watt
* Power transistors: 4x Mitsubishi RD70HVF1
Important: Depending upon SWR and input voltage, 200 watts maximum output is typical with 10 to 12 watts input; 15 watts is the maximum input permissible for a low distortion signal. Protection circuits will take the amplifier offline (fault) at about 18 to 20 watts. Running amplifier output at 170 to 180 watts produces a more intelligible signal at virtually the same received level.
Note: For additional information, please look at the files under the "Documentation" tab.
These RM ITALY LA 250 Series VHF linear amplifiers are perfect for mobile use! You may also want to use them with a 5 watt portable radio or low-power base radio. Order from DX Engineering to give your 2 meter operations a boost!
Documentation
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