R.L.DRAKE TR-5 User Manual
TR-5 transceiver
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http://www.dproducts.be/drake_museum/tr-5.htm
21.03.99
TR-5
TRANCEIVER
Picture : RL DRAKE TR-5 User Manual
The TR5 is a solid-state, broadband, SSB/CW transceiver which covers a11 amateur bands from
160 through 10 meters, including the new 12, 17 and 30 meter bands. The TR5 offers excellent
sensitivity and selectivity, high dynamic range, digital frequency readout and full break-in CW
operation.
A front panel switch allows the operator to Select an optional crystal fïlter independent of the MODE
switch. A wide range of optional crystal fïlter band-widths are available, and installation of an
accessory filter can be accomplished in minutes. The standard bandwidth is 2.3 kHz, and it is
automatically selected in transmit to insure proper signal characteristics. A passive double balanced
mixer is employed in the receiver front end. This stage is preceded by a low noise, high dynamic
range bipolar rf amplifier to provide good strong signal performance and weak signal sensitivity.
The digital frequency readout of the TR5 is derived from a true frequency counter to assure an
accurate display of operating frequency. In addition, the tuning knob dial skirt is calibrated in 1 kHz
increments to facilitate short frequency excursions.
The transmitter of the TR5 features a rugged, solid-state power amplifier section which has been
de-signed for continuous duty in the SSB and CW modes. For more demanding duty cycles, such as
SSTV or RTTY, the Model FA7 cooling fan is available. The transmitter section also features very low
harmonic and spurious output, and is equipped with automatic high VSWR protection.
The VOX GAIN and DELAY controls are conveniently located on the front panel, and full break-in
CW operation is obtained via a switch on the VOX DELAY control. VOX operation can be disabled by
a front panel switch.
Other features include selectable AGC time constants, receiver incremental tuning (RIT), provision
for an accessory noise blanker (NB5), and T/R switching connections for an external linear am-plifier
and/or receiver.
The modular construction of the TR5 reduces service time to a minimum. Each module is designed
to perform a specific function, and this feature, combined with the open, accessible layout of the
trans-ceiver greatly simplifies any required alignment and troubleshooting. Liberal use is made of
table con-nectors, simplifying module removal.
GENERAL :
Frequency Coverage: 1.8-2.0*, 3.5-4.0, 7.0-7.5,10.0-10.5, 14.0-14.5, 18.0- 18.5*, 21.0-21.5, 24.5-
25.0*, 28.0-28.5*, 28.5- 29.0, 29.0-29.7* MHz.(*With accessory range crystal).
Modes of Operation:U SB, LSB, CW
Frequency Stability: Less than 1 kHz drift first hour. Less than 150 Hz per hour drift after first hour.
Less than 100 Hz change for a * 10% line voltage change.
Readout Accuracy: * 10 ppm * 100 Hz
Power Requirements: 13.6 VDC regulated, 2 A. 12 / 16 VDC unregulated, 0.8 V rms maximum
ripple, 15 A.
Dimensions:Depth: 12.5 in. (31.75 cm), excluding knobs and connectors.Width: 13.6 in. (34.6 cm).