Equipment information

Drake R8B Receiver
Model R8B
Date 1997
Category Radio, Communication
Group Receiver
Description Communication Receiver
                                    The R8B communications Receiver is a microprocessor
controlled, synthesized, all mode, world band Receiver
with continuous coverage capability from 100 through
30,000 kHz. The Receiver offers excellent sensitivity,
selectivity, high dynamic range and offers features for the most
demanding shortwave reception. Conveniently located
front panel controls allow for rapid operator programming
and ease of use. Operating mode and corresponding bandwidth
are quickly selected by front panel but-
tons. The selectable AC input allows for operation around
the world. In addition, a DC input is provided for mobile
A High-Q, 8-pole, electronically switched IF filter provides
a range of five commonly used bandwidths. These band-
widths are automatically selected by mode, however
any bandwidth may be selected at the touch of a button.
The front panel liquid crystal display provides visual feed-
back to the operator of the current status of the Receiver.
The seven digit frequency display allows tuning resolution
to 10 Hz accuracy.
In the AM mode, a selectable sideband synchronous
detector (SYNCHRO) allows for enhanced reception by
eliminating or reducing distortion due to fading signals
and allowing the passband to be shifted toward one
sideband, to reject interference, without causing audio
A PASSBAND OFFSET control also aids in reducing or
eliminating interfering signals by electronically shifting the
receiver's IF frequencies without disturbing the operating
frequency. This action allows the operator to electronically
move interfering signals out of the receiver’s pass-
band thus utilizing the high degree of selectivity provided
by the High-Q, 8-pole IF filter.
Other built-in reception aids include selectable AGC
speed, dual Antenna inputs, noise blanker(NB), RF
preamplifier for enhancing weak signals, RF attenuator for
improvement of strong signal handling capabilities, ad-
justable RF gain, NOTCH, TONE and SQUELCH controls.
Two independent, real time clocks provide a local and
alternative time selection. Also provided is a two event
A programmable memory area allows for 1000 independent
receive memories. In addition, these memories are
stored in a battery backed-up memory chip to ensure
memory retention during power line failure. Any of these
memories may be altered by the operator and re-stored.
These memory channels may be accessed manually or
by various scanning methods.
Finally, a built-in RS-232 compatible interface allows
complete digital control of the Receiver including memory
and scanning functions.

These manuals are available for the above equipment:

Manual Type User Manual Drake-9262-Manual-Page-1-Picture
Pages 44
Size 681.34 Kbytes (697696 Bytes)
Language english
Manual-ID/Number 3851305A-9-1997
Date 01 January 1997
Quality Electronic document, no scan, very well readable.
Upload date
MD5 0249e73254d409a7d580c9ece76e7403
Downloads 103 since 09 August 2017
Important Safeguards
Table of Contents
General Description
Specifications / Accessories
Safety Voltage Selection
Fixed Installation
Mobile Installation
Antenna Requirements
Installation Diagram
Front Panel Description
Front Panel Display
Rear Panel Description
Mute Operation of the Receiver
Getting Started
General Operating Information
Microprocessor Reset
Beep Tones
Getting Started
Frequency Step Selection
Dual VFO's
Direct Frequency Entry
Front Panel Lock
Passband Offset Operation
Notch Operation
AM Synchronous Detector
RF Function (Attenuator/Preamplifier)
Noise Blanker
CW Operation
RTTY Operation
SSB Operation
FM Operation
Gain and AGC Operation
Memory Functions
Memory Channel Programming
Recalling A Memory Channel
Deleting A Memory Channel
Erase All Memory Channels
Locking A Memory Channel
Scan Functions
Scan Memory
Scan Memory List Block
Locking A Memory Channel
Scan A - B
Important Notes About Scanning
Clock and Timer Functions
Time Display
Setting The 24 Hour Clocks
Timer Operation
Setting Timer On/Off Times
Enabling/Disabling Timer Operation
Timer Connector Interface
Special Use Features and Functions
Function Line Invert
Setting Power Off (On) Lamp Brightness
10 kHz/9 kHz Scan
Delete All Memory Locations
Power On Button Functions
Held Button Functions
RS232C Interface
Glossary of Terms
Suggested References
Quick Reference Guide
Special Display Messages

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