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參數資料
| 型號： | MFJ-8704 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | Micro ATV Transmitter |
| 中文描述： | 亞洲電視發射機微 |
| 文件頁數： | 1/4頁 |
| 文件大小： | 167K |
| 代理商： | MFJ-8704 |
MFJ-8704
Micro ATV Transmitter
High Performance, SAW stabilized
Micro Video Amateur ATV Transmitter
This products is only to be used by a licensed radio amateur
Specifications:
Video
Video Input:
NTSC or PAL composite video (1 V P-P) SMPTE STANDARD
NTSC 625 Line 60 Hz
PAL 625 Line 50 Hz
RF
Center frequency without modulation
433.97 MHz +/- 50Khz
Output level:
+19dBmclean carrier
+16.5dBm modulated
Modulation type:
High level amplitude modulation
Spurious output:
2nd harmonic better than 40dB down
VCC
Supply Voltage
9V DC (+/- 300mV)
Current draw
35 - 40 mA
The
MFJ-8704
is a high quality, high performance SAW stabilized video transmitter, using surface mount technology.
A SAW oscillator is used in the fundamental operating mode to transmit at
433.97 MHz (Cable channel 59)
. The power output stage
uses the latest in MMIC technology.
The
MFJ-8704's
range can vary any where from 1/4 mile to 8 miles depending on the antenna used. A high gain yagi antenna usually
provides the best gain. If you plan to build your own antenna, an experimental antenna plan is included; however, commercially
available high gain antennas provide the best performance. Use the highest gain antenna possible for both the transmitter and receiver
with the shortest possible transmission line.
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