HSP BLA703 Quick Start Manual

BLA703
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:
Dimensions:
Weight:
WARNING:
Before using this product please read
carefully all of the information in this manual or at least the quick
start guide!!! This is extremely important to avoid damage or
incorrect operation !!!
Ver 1.0 Dic. 2023
25—30 MHz (10 m Amateur HF Band)
SSB,CW,AM, FM, data etc (All narrowband modes)
16x RM 3 MOSFET
8A / 120V. 4A 230/240Vac
110-120V or 230-240V Model specific
8A or 4A (5x20 mm Fast)
1-30 W max (All modes)
550 W max
1.1—1.5:1
2.5:1
>-50dBc 25-30MHz
410 mm x 175 mm x 305 mm
13 kg
Quick Start Guide:
A more complete installation guide is featured later
Connect the RTX input connector to the transceiver
1.
with a 50 Ohm patch cable.
2. Connect the ANT Output of the Amplifier to VSWR
Bridge / Wattmeter (If required), then the ATU (If
required) and then the Antenna (50 Ohm load
Impedance).
3. Make sure that the amplifier AC switch is switched
off.
4. Connect the Amplifier AC power cable to the AC Net-
work. Pay attention that you have the correct BLA703
model for the AC voltage of your country.
Adjust the RF output power of the transceiver to
5.
10 W (30W max) if it is capable of more than 30W
output
6. Switch on the Amplifier. After a short boot period
press the STB /OPR button until the LED turns green,
indicating 'Operate mode'.
7. Try a brief transmission to check that the antenna
VSWR is acceptable with the amplifier in use. Any
large increase in VSWR indicates 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.
8. If everything is OK you can increase the input drive
and / or change the output power level to suit your
output power requirements.
2