Daniels Electronics Ltd. VT-3A130 Руководство по эксплуатации - Страница 5
Просмотреть онлайн или скачать pdf Руководство по эксплуатации для Усилитель Daniels Electronics Ltd. VT-3A130. Daniels Electronics Ltd. VT-3A130 16 страниц. Vhf am transmitter 118 - 138 mhz
Печатать страницу1
GENERAL
1.1 Introduction
The VT-3A130 Transmitter is a synthesized multichannel AM transmitter designed to interface with
the MT-3 Repeater Systems, while still maintaining MT-2 system compatibility. Both MT-3
systems are characterized by dependable low maintenance performance under the most severe
environmental conditions. All performance measurements comply with Industry Canada (IC)
Standard Specification RSS 119 and 140, as well as the Federal Communications Commission
Part 87 for AM equipment. In addition, all units are burnt-in for 24 hours and are accompanied by
a complete test report.
The VT-3A130 Transmitter operates in the 118 - 138 MHz aviation band. The transmitter's
frequency stability is controlled by an OST-3A128 Synthesizer. The synthesizer module can be
programmed to have up to 16 channels. A channel programmer can preprogram the first 15
channels; channel 16 can be programmed from the front panel and channel 1 can be programmed
by the four BCD switches located on the MT-3 AM Transmitter Main Board.
1.2 Manual Organization
The organization of this manual reflects the modular makeup of the VT-3 product line. Each
module is fully described within its respective submanual, all of which are contained within this
document. In general, each submanual contains:
1. A functional description and specification summary.
2. A detailed technical description (Theory of Operation).
3. Assembly, setup and alignment procedures relevant to that particular module.
* Note * Material presented in a given "sub-manual" may include information related to other
module versions not directly applicable to the VT-3A130 transmitter family. The OS-3H
synthesizer module is a prime example, having family members covering from 29 to 512 MHz.
DANIELS
DE
ELECTRONICS
VT-3A130 VHF AM Transmitter Instruction Manual
1-1