DRAKE R 4C BLOCK DIAGRAM
DRAKE R-4C INSTRUCTION MANUAL Pdf Download.
R-4/R-4B. The adjust- The 4-NB mounts on the four plastic stand-offs ment on the R-4C is C59 located on a PC board on which are on the metal shields on either side of the the top of the R-4C chassis (see figure 5-l). Page 10 Table 2- 1. Crystal Frequency Chart FREQUENCY FREQUENCY RANGE CRYSTAL BAND RANGE CRYSTAL BAND 1.5 - 12.6 1.5 - - 3.0 16.5 - - 1 17.0 27.6 21.0 2.0 - - 13.1 [PDF]
INSTRUCTION MANUAL R-4C - IW2NOY
vert the R-4C to either option, the first step is to remove the bottom cover from the receiver. Re- move the bottom row of three screws on each side of the receiver, and the cover can be removed. Remove the rear feet, and snap the small rubber feet into the holes just outboard from the original rear feet.
DRAKE SPR-4 TECHNICAL MANUAL Pdf Download.
DRAKE SPR-4 Technical Manual Receiver DRAKE R-4C Instruction Manual DESCRIPTION Viewing Angle Options Features Front Pane1 Operating Controls Specifications Rear Controls & Connections Block Diagram INSTALLATION Top Alignment Adjustment Points Unpacking 2 . 1 Bottom Alignment Adjustment Points Location 2 . 2 SCC-4 Circuit Board Power
Manual Display Page
The document is scanned using 100 dots per inch which requires a 1024x768 screen resolution view entire page without scrolling the page around. The title of the manual is listed at the very top of the screen. Under the title are links to return to the Manual Menu Page or the Drake Home Page.
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The TR-4C is a 300 Watt HF single sideband trans- ceiver which covers the 80 through 10 meter amateur bands. AM and CW modes are also included. The TR--4C requires either an R. L. Drake AC-4, 120 V AC power supply, or an R. L. Drake DC-4, 12 V DC power supply.
Help Needed for Drake R4C 4-NB Noise Blanker | QRZ Forums
Dec 30, 2016Help Needed for Drake R4C 4-NB Noise Blanker. Discussion in 'General Technical Questions and Answers' started by G4AEI, Jul 10, Draw a block diagram out from the board and circuit. I neglected to short the mute jack on the R-4C rear chassis when testing the noise blanker. At the moment my T-4XC is in the shop having the 40 year overhaul
Drake AUX-7 Programming Board () Format. 1525EM Tone Encoding Microphone Manual. 7077 Microphone Manual (pdf.) Format "High Patch" Phone Patch Manual. 2-C Receiver Manual. 2-NT Transmitter Manual. 34PNB Noise Blanker Manual. 4-NB Noise Blanker Manual. 5-NB Noise Blanker Manua l. 7-NB Noise Blanker Manual
Antique Radio Forums • View topic - Drake R-4C PTO failure
The Drake 4 line series uses a premixer system where the PTO and crystal range oscillator are mixed together before being injected into the first mixer so a failure of the crystal oscillator, PTO, or pre-mix circuit are all candidates for the R-4C only operating when slaved to the T-4XC.
Drake R 4C - YouTube
Nov 22, 2012The Drake R-4C recorded on November 18th of 2012 during the ARRL 79th Sweepstakes, the night was cool and clear, the bands were somewhat quiet but in
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The R-4C had all of the factory filters, plus the optional CW filters (1, 500Hz, 250Hz filters). The receiver also has the Drake noise blanker. The sweet thing about the R-4C is that it has ALL of the Sherwood mod's including the CW & SSB roofing filters.
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