152104. GCM-3000 45-870MHz Agile Adjacent modulator

With I2C bus control; LED digital channel display, all adjusted parameter can be displayed on it; Standard channels preset and can be selected at random; Audio sub-carriers 6.5/6.0/5.5/4.5MHz are selectable on front panel; Each channel with 0.25MHz fine tune, automatic storage, retention while power off.

Detailed description

Features:

With I2C bus control
LED digital channel display, all adjusted parameter can be displayed on it
Standard channels preset and can be selected at random; Audio sub-carriers 6.5/6.0/5.5/4.5MHz are selectable on front panel
Each channel with 0.25MHz fine tune, automatic storage, retention while power off
Suitable for 19〞standard rack mounting, with rear panel AC outlet for cascade usage

Specifications


RF			VIDEO
Item	Unit	Specification	Item	Unit	Specification
Output Frequency Range	MHz	48.25～860	Input level		1VP-P@87.5%
Output Level MAX	dBuV	115	Differential Gain	%	3
Output Level Modulation	dB	20	Differential Phase	°	3
A/V Carrier Ratio	dB	-13～-20	C/L Delay	nS	< 45
Output Band Rejecfion	dB	60	Frequency Response	dB	±1.0
Frequency Accuracy	KHz	±5	Modulation Range	%	0-95
Output Impedance	Ohm	75	Video S/N Ratio	dB	60
Output Return Loss	dB	16	C/N Ratio	dB	60
Video Modulation Index	%	87.5-95	Input Impedance	Ω	75
AUDIO			GENERAL
Audio FM Deviation	KHz	±50	Power Supply	V	220±10% AC
Input Impedance	Ω	600	Fuse	A	RF1-20 ~0.5A
Sub-carrier Frequency	MHz	6.5MHz ±50Hz	Working Temperature	℃	0 ～40
In-band Freq Response	dB	±0.5
Distortion Factor	%	0.6
Pre-emphasis		50u Sec. (75u Sec. optional)