The VideoLynx 434 Micro ATV Transmitter
Scroll down for details and tips on setup

VideoLynx 434
Only
$99.00
Featured in July 2001 issue of QST
Order
The VideoLyn 434 is perfect for RC models, aircraft, hatcams, short range video links, balloons, blimps, etc. When coupled with high gain antennas, the 434's DX performane is truly impressive. For example, with two 8 dbi gain dipoles, such as the P.C. Electronics OAL 5L-70cm yagi or the Cubex 7L70CM-001, the range can be in excess of 4 miles.
  • The VideoLynx 434 is the world's smallest, high-power ATV ham-band 70 cm video transmitter
  • It is housed in a tough, encapsulated shell, measuring a mere .63" x .8" x 2.25", and weighs only 1.5 oz.
  • BNC antenna connector enables one to use any type of antenna
  • Operates at 433.97 Mhz - use ANY cable ready TV to receive video on cable channel 59
  • Power output is between 50 and 100 milliwatts peak envelope power.
  • Range of up to 1000 feet with the proper antenna, even better range with high gain antenna
  • Uses the latest in micro components, such as those found in cellular and PCS wireless devices
  • Video Linearity control for fine adjustment of picture quality
  • Transmits B/W and full-color video
  • Possible applications include model rocketry, radio controlled aircraft and other R/C devices, robots, simplex video links, etc.
  • Note: The Videolynx 434 is an Amateur Radio ATV transmitter. This transmitter can ONLY be operated in the USA by a Technician class (or higher) licensed Radio Amateur, and for legal purposes per 47 CFR part 97 of the FCC Rules. 97.113 of the FCC Rules prohibits the use of Amateur Radio Frequencies to further any business purpose, whether for profit or non-profit. With few exceptions, per 91.111, any transmission must be directed to at least one other licensed Radio Amateur. Amateur Radio is intended for personal or hobby non-commercial communications between licensed Radio Amatuers. With the exception of running less than 1 watt for radio control purposes, Amateurs must identify with their call letters plainly seen in the video every 10 minutes for extended transmissions, and at the end of every transmission per 97.119
 

The VideoLynx Model 434
Operation and Setup

434 Setup

The block diagram above shows the how the VideoLynx 434 micro ATV ham-band 70 cm video transmitter is connected. Almost any micro camera, camcorder or VCR may be used as a video source.


434 Backplane

Back Plane Diagram and Video Linearity

The video linearity control on the VideoLynx 434 is adjusted at the factory. Adjustment is not necessary in most cases. If the unit is used with an external linear power amplifier, the linearity control may need to be adjusted. The best way to adjust the control without special equipment is by tweaking for a stable picture, while maintaining maximum power output.

Do not adjust this control unless absolutely necessary!!!



Use high grade lithium batteries. The VideoLynx can operate for about 6 hrs on a fully charged 9V battery! Operation from a regulated DC power supply is also possible.

Caution: Do not reverse polarity on power leads, or permanent damage to the VideoLynx 434 will occur.

 
Designed by
KA3NNJ