Tuning Procedure; Rear And Side Panels; Rear Panel Connections - Ten-Tec REBEL 506 Operator's Manual

Open source qrp transceiver
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BW:
W (wide ~ 2.5 kHz)
M (medium ~ 1.5 kHz)
N (narrow ~ 800 Hz)
STEP: 100 (Hz), 1K (Hz), 10K (Hz)
USER: U1, U2 or U3 (user programs)

2.3 Tuning Procedure

As programmed at the factory, when power is
turned on the Rebel 506 will be tuned to the
QRP calling frequency on the band selected:
7.030 MHz on the 40 meter band, or 14.060
MHz on 20 meter band. Note that the front
panel does not have a frequency display.
(Such a display may be one of the Arduino
programming and interface functions added by
the user.)
The TUNE knob controls the operating fre-
quency in the following manner:
As the TUNE knob is turned, the LED in the
center of the TEN-TEC logo at the upper right
of front panel will flash with every tuning
step, as selected by the user. For example, if
the 100 Hz step size is selected and the user
wishes to tune to a frequency 1 kHz higher
than the startup frequency the user would turn
the knob clockwise and count ten flashes.
Although this method may seem cumbersome,
it allows the Rebel 506 to be operated imme-
506 / Rebel Users Manual
Part #74482
Printed in USA
diately, without additional user programming.
The radio is factory programmed to avoid
operation outside the amateur bands. When
tuned to the band edge, the LED remains lit to
show that the tuning limit has been reached.

3. 506 Rear and Side Panels

(Refer to the photo above)

3.1 Rear Panel Connections

DC POWER (2.1 mm coaxial power connec-
tor): Connect an external regulated DC power
source of 10-15 volts to this The center pin is
positive (+).
HEADPHONE/ SPEAKER (1/8" stereo phone
jack): Accepts standard stereo headphones,
with monaural audio routed to left and right
earpieces. When a speaker is desired (see
Section 4.2), the audio is routed to the tip and
sleeve of the connector.
ANTENNA (BNC female): Connect a nomi-
nal 50 ohm impedance antenna.
KEY/PADDLE (1/8" stereo phone jack): The
Key/Paddle connector is a 1/8" stereo jack. As
provided by the factory, only a key or external
keyer may be used, with connection to the tip
Release 1.00 – August 2013
5

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