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RM Italy KL703 Quick Start Manual
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RM Italy KL703 Quick Start Manual

Hf 25-30 mhz linear amplifier
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KL703
HF 25—30 MHz Linear Amplifier
Specifications:
Operation Frequency:
Modulation Types:
Transistor:
Max I/P Current:
Power Supply:
Input Fuse (Internal):
Input RF Power:
Output RF Power:
Maximum bypass power (Amplifier off): 50W max
Input VSWR:
Output VSWR Maximum:
Harmonic Output:
WARNING:
Before using this product please read carefully all of
the information in this manual or at least the quick start guide!!! To avoid dam-
age or incorrect operation this is extremely important!!!
Ver 1.0 Oct. 2018
25—30 MHz (10m Amateur HF Band)
SSB,CW,AM, FM, data etc (All narrowband modes)
16x RM 3 MOSFET
50A
13.8VDC+/- 1V 60A
4x15A (Auto Fuse)
1-35W max (All modes)
500W max
1.1—1.5:1
2.5:1
>-50dBc 25-30MHz
Quick Start Guide:
A more complete guide to the installation is featured later
1.
Connect the RTX input connector to transceiver with
50 Ohm patch cable
2.
Connect the ANT Output of the Amplifier to SWR
Bridge / Wattmeter (If required), and then the Antenna
(50 Ohm load Impedance)
3.
Connect the Amplifier DC power Cable to a suitable
13.8VDC (± 1V) 60A Power Supply or Auto Battery.
Pay attention to the correct polarity
4.
Make sure that the amplifier is switched off
5.
Adjust the Transceivers RF output power to 30W
(35W max) if it is capable of more than 30W output
6.
Switch on the Amplifier and start operating
7.
Check that the antenna VSWR is acceptable with the
amplifier in use. Any large increase in VSWR indi-
cates that the Antenna is not suitable for the power
being used. Operation should be halted immediately
to avoid damage to the Amplifier / Radio / ATU etc.
2

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Summary of Contents for RM Italy KL703

  • Page 1 KL703 Quick Start Guide: HF 25—30 MHz Linear Amplifier A more complete guide to the installation is featured later Connect the RTX input connector to transceiver with 50 Ohm patch cable Connect the ANT Output of the Amplifier to SWR...

  • Page 2: Front / Rear Panel Description

    Installation: Front / Rear Panel Description Unpack the amplifier from it’s shipping carton and inspect for any signs of damage. The ampli- fier should be installed (either fixed or mobile installation), in a place that allows good ventila- tion and provides a suitable base to support it. Failure to allow for reasonable ventilation will Front Panel cause the amplifier to overheat and damage may occur.

  • Page 3: Operation

    Refer to Page 3 of this instruction manual. Mode: Important!! The KL703 may be used for all of the common narrow band transmission modes such as SSB, CW,AM,FM, SSTV and data modes etc. Before the amplifier is switched on, (switch ), the power output of the drive radio should be adjusted correctly if it is capable of outputting a power greater than 30W.
  • Page 4 The amplifier should give full output with approximately 25-30W input. Excessive input power should be avoided and the amplifier should always be operated in a responsible manner. The KL703 features an input attenuator that may be used to reduce the output of the ampli- fier if the drive radio does not have the facility to reduce its output power.
  • Page 5 Typical Harmonic Output KL703 Schematic...

  • Page 6: Warranty

    Attention: The use of Linear Amplifiers are controlled by specific laws within the country of use. These laws must be known to the user and are entirely the responsibility of the user. The manufacturer declines any responsibility from unlawful use. Warranty: This product is covered by a 24 month warranty commencing from the date of purchase.