USM-20D3: Consumer Audio-Video RF Modulators

Features

Single (USM-8D) and Triple (USM-20D3) low cost UHF A/V Agile Modulator, UHF band channels 14~83, CATV channels 65~139
High Output 20dBmV minimum, 25 dBmV typical provides ample signal for multiple consumer devices (USM-20D3)
High Output 7dBmV minimum 10 dBmV typical provides ample signal for multiple consumer devices (USM-8D)

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Data Sheet: USM-20D3

Specifications Ordering Information Documentation

Output Frequency Range
VSM-3/4S	Channel 3 or 4
USM-20D3	470~890MHz
USM-8D	470~890MHz
Tuning	Agile
RF Output Level (min)
VSM-3/4S	5dBmV
USM-20D3	22dBmV
USM-8D	11dBmV
RF A/V Ratio	-16dB
Spurious Output
VSM-3/4S	36dB
USM-20D3	42dB
USM-8D	46dB

Frequency Stability	±10kHz
Video Input Type	Clamped negative sync
Video Input Bandwidth	4.2MHz
Video Input Level	1 Vp-p
Video Input Range	.5~1 Vp-p
Video Frequency
Response	±1.5dB
Video Hum and Noise	-60dB
Audio Input Type	Monaural baseband
Audio Input Level	0.5 Vp-p
Audio Frequency
Response	50~15,000Hz
Audio Pre-emph.	75 μsec
Video Input Conn.	RCA-Fem
Audio Input Conn.	RCA-Fem
RF Output Conn.	75½ F-Fem
Voltage Input	115VAC
Dimensions
VSM-3/4S	5.9” (L) x 3” (D) x 1.4” (H)
USM-20D3	5.6” (L) x 1.1” (D) x 3.9” (H)
USM-8D	3.4” (L) x 1.1” (D) x 3.75” (H)
Weight
VSM-3/4S	1 lb.
USM-20D3	1.75 lb.
USM-8D	1.15 lb.

Ordering Information	Description
VSM-3/4S	Consumer Audio-Video RF Modulator
USM-20D3	UHF Consumer Agile Triple Audio-Video RF Modulator (UHF: Ch. 14~83, CATV: Ch. 65~139)
USM-8D	UHF Consumer Agile Audio-Video RF Modulator (UHF: Ch. 14~83, CATV: Ch. 65~139)

Data Sheet: USM-20D3 (ANW1415)