Magnum Raptor, Owner'S Manual

Page: 6 / 8

DEL : Echo Delay. Varies the amount of delay, or
duration of the echo repetition. Rotate clockwise to
increase the amount of delay and counterclockwise
to decrease.
6. SWR AMT
SWR : Standing Wave Ratio Calibrate. The Raptor
features an internal standing wave ratio (SWR)
bridge for measuring and checking the antenna
system’s standing wave ratio. See 9. for more
details.
AMT : All Mode Talk Back. AMT, a Magnum
exclusive, is an independent talk back monitor. The
AMT functions in all modes and allows the operator
to monitor the transmitted audio of the Raptor. To
increase the volume of the talk back rotate the
control clockwise. To decrease rotate
counterclockwise. To turn off the talk back rotate the
control completely counterclockwise.
7. FREQUENCY : Rotate clockwise or counterclockwise
to select the desired frequency. The Raptor
continuously tunes from 28.00 to 29.69MHz in
10kHz steps. See 12. for details on viewing MHz
and kHz frequency positions
8. S/RF/SWR
METER : Indicates receive signal
strength, RF output power, and SWR. The top bar
on the meter indicates SWR (see 9. for more
details). The middle bar indicates RF output power.
The bottom bar indicates receive signal strength.
The meter features a two color LED backlight. In
receive mode, the meter is illuminated blue. During
transmitting, the meter is illuminated red.
9. S/RF – SWR – CAL
: Selects the function of the
S/RF/SWR meter (see 8.).
S/RF : In the S/RF position, the Raptor’s front panel
meter indicates receive signal strength (SIG) during
receive mode, and RF output power (RF) when
transmitting.
SWR - CAL : The SWR and CAL positions are used
in conjunction with the SWR variable control (see 6.)
to measure and check your antenna system’s
standing wave ratio (SWR).
To check your SWR follow these steps:
a. Put slide switch into the CAL (calibrate) position.
b. Use microphone PTT switch to put the Raptor
into transmit mode.
c. While transmitting, use the SWR variable control
(6.) to align the front panel meter needle with the
CAL mark on the top bar.
d. Release PTT switch after calibrating.
e. Put slide switch into the SWR position.
f. Press the microphone’s PTT switch to put the
radio back into the transmit mode.
g. The front panel meter needle will indicate the
standing wave ratio. The top bar of the meter
indicates SWR.
A perfect SWR is 1:1 (the needle will stay on the
number 1).
An acceptable SWR is 1.5:1 or lower (the needle
is no more than half way between the 1 and the
2 on the meter).
SWR measurements above 2:1 (the needle is on
or past the number 2 on the meter) are poor and
your antenna system should be checked by a
trained technician.
10. AM - FM
: Selects the mode of operation, AM or FM.
11. DUAL POWER : The Raptor features an exclusive
dual power system that allows quick and easy
adjustment of the radio’s carrier and peak RF output
power.
CARRIER LOW – HIGH : Adjusts the RF output
power on FM and the carrier only on AM. In the
LOW position the carrier level will be 2 watts. In the
HIGH position the carrier level will be 15 watts.
PEAK LOW – HIGH : Adjusts the peak RF output
power (modulated power) on AM only. In the LOW
position the peak power will be 25 watts PEP. In the
HIGH position the peak power will be 80 watts PEP.
12. RB : Roger Beep. A tone that is automatically
transmitted when the microphone PTT switch is
released (unkeyed). The roger beep tone is used to
indicate the end of your transmission to the receiving
party.
12. FREQUENCY DISPLAY : Displays the 100kHz and
10kHz position of the operating frequency. For
example, when operating 28.750MHz, the display
will show 75.
To see the MHz position, press the PTT switch on
the microphone and the MHz position will briefly be
displayed. For example, when operating 28.750MHz
and the PTT switch is pressed the display will show
28.
NOT SHOWN
Microphone Push-To-Talk Switch
: The push-to-
talk (PTT) switch is located on the side of the
microphone. Press and hold the switch to transmit.
While transmitting, speak into the front grill of the
microphone.
The front panel meter light will turn from blue to red,
indicating that you are transmitting. Release the
switch to receive.