140-174, 300-360, 400-490 MHz Isolators IF-1(2)V-300, IF-1(2)A-300, IF-1(2)U-300 : Radial :

Electrical specifications

Model	IF-1V-300	IF-2V-300	IF-1A-300	IF-2A-300	IF-1U-300	IF-2U-300
Operating frequency band, MHz	140-174		300-360		400-490
Operating bandwidth, MHz	7		14		20
Gain not more than , dB	0,4	0,8	0,4	0,8	0,4	0,8
Isolation TX-TX not less, dB	30	65	30	65	30	65
Impedance, Ohm	50
VSWR, not more than	1,2
Input power, W	not more than 300
Temperature range, °C	30 to +50

25 kHz frequency grid enables to use only hybrid transmitter combiners. It`s sometimes essential to use power amplifiers, when the number of channels is 4 or greater. In this case transmitter combiner should be meant for greater power input. Here ferrite 300-watt isolators can be implemented. High wattless power coaxial air capacitor usage makes isolator tuning easier and lowers its loss to minimum.
300-watt isolators are mainly adopted for constructing antenna section of powerful paging transmitters, in order to lower intermodulation interference and protect power amplifier from failure in antenna system. Replaceable ballast load enables to use IF-1(2)V(A,U)-300 for transmitter combiners manufacture, as well as standalone device.

140-174, 300-360, 400-490 MHz Isolators IF-1(2)V-300, IF-1(2)A-300, IF-1(2)U-300

Electrical specifications

Mechanical specifications

Typical isolator characteristics

IF-1U-300

IF-2V-300

140-174, 300-360, 400-490 MHz Isolators IF-1(2)V-300, IF-1(2)A-300, IF-1(2)U-300

Electrical specifications

Mechanical specifications

Typical isolator characteristics IF-1U-300 IF-2V-300

Typical isolator characteristics

IF-1U-300

IF-2V-300