Category:HiTec HFD-08RD receiver

Introduction
HiTec HFD-08RD receiver is designed to increase its transmitters' signal lock.

As described in the manual, it has eight primary features listed as below: Also, specifications are provided by manufacturers as displayed below:
 * 8 Channels
 * Compact design
 * Dual Conversion
 * Full Range/Ultra Narrow band
 * Auto Gain Control
 * Low Voltage operation
 * Size: 2.00 x 1.26 x 0.79' (51 x 32 x 20mm)
 * Weight: 1.00oz (28.5g)
 * Input voltage: 4.3~6.0V
 * Will accept popular servos from: GWS, Futaba J, Airtronics Z, JR, Hitec
 * Will accept popular rx battery from: GWS, Futaba J, Airtronics Z, JR, Hitec

Dual Conversion
A type of receiver that converts the incoming frequency through two intermediate stages. This tends to eliminate the type of interference known as "image". With high-precision components, it also allows the receiver to be much more precise in selecting the incoming channel it accepts. This is what helps the receiver to be very narrow-band.

Narrow-band
A radio with a 20 kHz band width. All Futaba radios produced 1992 or later and all Futaba FM and PCM radios ever produced are narrow band. Here is a list of available Futaba Narrow-band receivers:

Useful websites (citations)
1. Detailed manual of HiTec HFD-08RD receiver, HiTec Corp., website: http://www.hitecrcd.com/files/ManualSupreme2S.pdf

2. "Understanding and Enhancing Sensitivity in Recievers for Wireless Applications", Texas Instrument Incorporated, website: http://www.ti.com/lit/an/swra030/swra030.pdf

3. Classification of HiTec RCD receivers, website: http://www.hitecrcd.com/files/ManualGenericReceiver.pdf

4. "Introduction to Mixers", Michael Ellis, 1999, website: http://michaelgellis.tripod.com/mixersin.html

5. Basic configuration of HiTec HFD-08RD receiver, website: http://shop.tomsrc.com/product_info.php?cPath=75_81_297_305&products_id=1450