JG-ULNA2VOX
VHF Preamplifier for the 144MHz band (2 meters) with integrated VOX circuit, bias tee and ultra-low NF coaxial relays
VHF Preamplifier for the 144MHz band (2 meters) with integrated VOX circuit, bias tee, and on-board coaxial relays capable of operating up to 100W without any external accessories. Perfect for satellite use, contests, tropo, and EME. The ATF531P8 module ensures a very low noise figure. Simply connect the PRE between the radio and the antenna.
Application field:
Preamplifier made on a 4-layer PCB with an integrated VOX circuit, coaxial relays, and on-board bias tee. It can handle up to 100W and automatically switches from TX to RX.
INNOVATIVE Ultra Low Noise Preamplifier available for the 2-meter band. It uses the ATF531P8 module. Low noise figure (typ. 0.50dB with active coaxial relay).
Thanks to the notch filter at the input, it is possible to attenuate broadcasting from 88 to 108MHz. Manufactured in our facility in a cylindrical anti-corodal aluminum structure.
It can be powered, in addition to the feed-through capacitor, also via BIAS TEE with a voltage from 9 to 15V and a maximum current consumption of 100mA.
Uniqueness:
On-board coaxial relays up to 100W throughput
INTEGRATED VOX circuit
Can be powered via Bias tees with voltage from 9 to 15V
Low noise figure at 144MHz (typ. 0.50dB)
ATF531P8 module
Bandpass filter
Tunable 88/108MHz input notch filter
Connectors:
Connectors specially built to our specifications.
Teflon dielectric. Highest quality.
Possible combinations: N male / N female, N female / N female, or N male / N male
Materials:
Cylindrical structure made of 6060 alloy anti-corodal aluminum.
All tightening screws are made of STAINLESS STEEL.
Technical characteristics:
Supply voltage: 9-13.8V
Max Input power: 100W
Minimum VOX switching power: 500mW
Current: 100mA
Impedance: 50Ohm
Gain: +23dB
OIP3: +29dBm
Noise Floor: approximately 0.50dB
STAINLESS STEEL bolts
