LNR MantiZ FX-2 User manual

Instruction Manual
MantiZ FX-2
QRP FX-2 30/40 Meter CW Transceiver
Thank you for purchasing the MantiZ FX-2 30/40 Meter CW
Transceiver. This unit is designed as a small and lightweight trans-
ceiver perfect for portable use.
Specifications
Frequency: 7.000-7.300MHZ
10.100-10.150MHZ
Power：9-13.8 Volts DC
Power Output: 13.8VDC 40 Meters ~ Approx. 4W
13.8VDC 30 Meters ~ Approx. 2.5W
Receiver Sensitivity: 0.7UV
Weight: 290g/10.22oz.
Dimensions: 4.75” x 2.375” x 1.5”
Intermediate Frequency：4MHZ

Appearance
On the front of the unit, you will see the VFO (LCD) display
along with 4 horizontal buttons below the VFO display
Available functions
 Two bands, 40 and 30 meters, tuning limited to be with-
in these bands (7.000,000 to 7.300,000 and 10.110,000 to
10.150,000).
 RIT tuning.
 Variable bandwidth IF.
 “Tune” mode with SWR indicator.
 Iambic (B mode) keyer, 5 to 40 wpm.
 Two (2) programmable Morse message memories of up
to 120 characters each.
 20 user programmable frequency memories, 10 for
each band.
 As a battery saving method, the LCD back light will turn
off after 2.5 minutes of inactivity. The display can still be
viewed under strong light with the back light off and
any activity such as pushing a button, tuning the fre-
quency or tapping the paddle will turn the light back
on.

Important Instructions
The FX-2 unit is installed with VSWR protection but is not in-
tended to protect your FX-2 if your antenna exceeds 3:1
SWR. Be sure to use an analyzer if at all possible.
Quick Setup
1. Hook your antenna to the BNC connector on the left
side of the FX-2. We have been very pleased using RG-
174 for a feed line up to 25 feet in length.
2. Install your favorite key (Straight or Paddle) into the
key port. Paddle key requires 1/8” stereo plug. Straight
key requires 1/8” mono plug.
3. Install your ear buds or headset into the phones port.
The unit has very good volume so it is acceptable to
use low cost phones.
4. Included with the unit is a power plug for the FX-2. You
will note that the cable has a line marked on the cord
indicating “+ Positive”. Make sure this is wired to your
Power supply correctly or damage will occur to FX-2!

Basic Operation
1) Turn unit on by rotating the volume control knob away
from you. You should see the Frequency display at this
time.
2) Adjust volume control to best suit your needs.
SETTINGS/FUNCTIONS
 VFO Setting is done by rotating the TUNED knob on the right
side of unit. You will notice that as the VFO knob is turned the
frequency will change base on the curser position on the dis-
play. Use the left/right arrow key to move curser for faster
frequency change.
 Volume control is controlled by the volume control knob.
Note: that there might be some sound distortion if volume
control is turned to maximum, if this is the case reduce until
distortion is reduced in most cases less than a quarter of a
turn back.
 Independent side tone is controlled by a small pot located
on the front side of the unit (see fig 2). Use a small Phillips or
flat blade screw driver to adjust pot. Counter rotation in-
creases volume /clock wise decrease. Side tone volume.
FIG 2

Initial Power ON Configuration
 40 M band is loaded.
 100 Hz tuning rate selected.
 Keyer speed is set to 20 wpm.
 IF bandwidth is set to narrow.
 RSSI (received Signal Strength Indicator) or “S” meter is ac-
tive on the bottom, left side of the display.
 Transmit power output is indicated on the display when
transmitting. The “S” will change to “P”. The scale starts at 1
watt out and then increases in about 0.5 watt increments.
Full scale is 4.5 watts or greater.
Band Selection
The [CAL/IF] button is used to toggle between the 40 and 30
meter bands.
NOTE: this is a timed, multi-function button.
 Push and hold closed the [CAL/IF] button for about one (1)
second. Release the switch when the side tone enunciates
the letter “B” and the next band in meters is shown in the
menu window . The operating frequency will toggle when
the button is released.
 If a frequency has been programmed into the MEM0 loca-
tion, this will be used as the default power on frequency.
Otherwise, either 7.030,000 MHz or 10.118,000 MHz will be
loaded.
 After the initial power on frequency has been loaded, subse-
quent toggling between bands will restore the frequency
the rig was tuned to when the band was switched.

Tuning
Tuning is done by turning the tuning knob on the upper, right hand side of
the rig. Tuning rate is indicated by the decade underlined by the cursor.
The frequency changes every other detent.
Changing Tuning Rate
Tuning rates (frequency steps) of 10 Hz, 100 Hz and 1 kHz can be selected.
 The [left arrow] button advances the tuning rate to the next higher
decade. The rate will roll over to the 10 Hz step after the 1 kHz decade
has been selected.
 The [right arrow] button decreases the tuning rate to the next lower
decade. The rate will roll over to the 1 kHz step after the 10 Hz step was
selected.
Frequency Memories
 There are ten fre-
quency memories
for each band, 0
to 9.
 Enter the frequen-
cy memory mode
by pushing and
holding closed the
[CALL/IF] button for
about 2 seconds,
until the display
shows the memory mode.
 When active, the display will read [ MEMx ??.???,??? ] on the bottom
line. X is 0 to 9 and the “?” is replaced by a number if the location isn't
empty.
 Select memory locations 0 to 9 with the [right] and [left] arrow buttons.
 To store the currently displayed operating frequency shown on the top
line of the display, tap the [M/V] button. Once stored, the display will
clear back to normal operation.
 A frequency stored into memory location 0 will now become the de-
fault power on frequency for that band.
 To recall a frequency from memory, tap the [M/V] button. If a valid
frequency is in the memory location, it will be loaded as the new oper-
ating frequency and the display clear to normal operation. If the
memory location is bank, the mode will simply exit.

RIT
 Activate RIT by tapping the [CALL/IF] button.
 [RIT] will be displayed in the upper left side of the display and
the letter “R” enunciated.
 Exit RIT mode by tapping the [CALL/IF] button again.
 [ -0,000] will be displayed on the second line under and in line
with the proper frequency decades.
 This display shows the delta frequency between the transmit
frequency and the new receive frequency.
 As the receive frequency is changed, the delta between the
transmit frequency and the current receive frequency is shown
on the bottom line. The delta can be up to +/- 9.900 kHz.
 Tuning rate can be changed with the arrow buttons as usual.
 Tap [M/V] again to switch back to normal RIT mode.
 Change code speed, keyer message functions and the tuning
step buttons can be used in RIT mode, but all other functions are
locked out until RIT mode is exited.
NOTE: The RIT offset is saved until you either change bands or use the
tuning knob to change the current operating frequency. Therefore it
is possible to toggle back and forth between the RIT frequency and
the normal Tx = Rx operating frequency. This can be handy if you are
working a net and one station is off frequency, or when working split
and you want to check to see if your transmit frequency is still clear
or if someone is calling you there.
MENU Functions
The [M/V] button serves to select various functions from the menu.
These are selected in the following order by pushing and holding
down the button until the desired function label is displayed.
Note: with the exception of Code Speed, a “beep” will sound for
audio feedback when each function changes and comes up on
the display.
1. Change code speed
2. TUNE mode
3. Bandwidth (adjust)
4. Keyer Memory (enter messages)

Change Code Speed
 A quick “push and release” (tap) of the button activates the code speed
adjustment. [CSxx] will be displayed in the lower left hand side of the dis-
play, where xx is the current code speed.
 This function will automatically terminate after 1 second of inactivity
(speed isn't being changed)
 Increase speed : use the DASH paddle. Tap or hold closed to auto incre-
ment. A beep sounds at each step.
 Decrease speed : Use the DOT paddle as above.
 Speed can be changed while in straight key mode by using the RIGHT
and LEFT arrow buttons. This allows changing the sending speed of a
stored message.
Tune Mode
[TUNE] will be displayed in the upper left side of the display.
 Tune mode is normally used when an antenna tuner is being adjusted to
give you a steady carrier. It also displays Forward and Reverse power lev-
els.
 Forward and reverse SWR readings are displayed on the bottom line of
the display while in tune mode. Reverse power is shown first as indicated
by the “R” and then forward power as indicated by the “F”.
 Forward power scale: The first “dot” appears at about 1 watt out. Addi-
tional “dots” indicate about 0.5 watt increments. Full scale shows 4.5 or
more watts out.
 Reverse power scale is made to be most responsive when the SWR is be-
low 2:1, so you can more precisely adjust a tuner for 1:1 SWR Full scale of 6
dots indicates a SWR of above 3:1.
 Use the DOT paddle to key the rig. - this allows for straight key compatibil-
ity.
 Exit by pushing the [M/V] button.
Bandwidth Adjust
[BW-X ] is displayed when active. X indicated current bandwidth setting, 1 =
narrowest, 5 = widest.
 Use the LEFT ARROW or RIGHT ARROW buttons to increment or decrement
the IF bandwidth.
 Exit by pushing the [M/V] button.

Keyer Memory
[KMEM] will be displayed in the menu window until the button is released to
activate the function. When the keyer memory function becomes active, the
top line will clear and the bottom line will now read [ESC BS IS RM ] These mes-
sages appear above the four buttons to remind you of their function.
M/V button = ESC = Escape, exit keyer memory mode without storing a mes-
sage.
Left arrow = BS = Back space
Right arrow = IS = Insert Space
CALL/IF = RM = Review message
 To exit at any time without entering a message, push the [M/V].
 Two messages with up to 120 characters can be stored. Word spaces
count as characters.
 Use the paddle to key in your message.
 “Ideal” letter and word space timing, 3 dot time for letter and 7 dot time
for word. As an aid to proper timing, the characters you enter are decod-
ed and displayed on the lower line of the display. If a character is not rec-
ognized, a “!” will be displayed. All numbers, letters and common punctu-
ation characters are decoded.
 If more then 15 characters are entered, the display will start to scroll.
 If a mistake in made, you can back space to erase the mistake by push-
ing the [BS] (LEFT ARROW) button.
 Generally, you will push the button twice, as a space will be inserted after
the character by the time you go to push the back space button.
 You can only back space up to the first character entered. The cursor will
indicate where the location of the next character is to be entered.
 Characters already written to the display will not be erased if there are
less than 15 characters currently displayed –that is the display has not yet
started to scroll.
 Additional word spaces can be inserted using the [IS] (right arrow) button.
 If you exceed the letter limit of the memory, the side tone will enunciate
“MF”. You now have to choice to store the message as is, or to delete
some characters with the back space button, or to exit.
 Once you have entered the message, review the message by tapping
the [RM] (CALL/IF) button.
Storing the Message
 If the message sounds good, store it into location 1 by tapping the DOT
paddle or into location 2 by tapping the DASH paddle. The side tone will
enunciate “MS” and the display will clear when the message has finished
storing into EEPROM memory and the display returned to normal opera-
tional mode.
 If you want to start again from scratch, push the [M/V] button [RM]. The
top line will clear and “EM” enunciated from the side tone.

Sending Messages
 Tap the [M/V] button, then with in 1 second tap either the DASH paddle
(to send message 1) or the DOT paddle (to send message 2).
 Terminate message: Close the DOT paddle. Message will terminate when a
letter being sent at the time completes sending.
Straight Key Mode
 If the DASH paddle input is grounded on power up, straight key mode will
be enabled.
 Straight key mode will automatically be enabled if a MONO phone jack is
inserted into the paddle jack when the rig is turned on.
 Dot (tip) is active to key the rig.
 Straight key status is checked when the bands are toggled. It is therefore
possible to disable or enable straight key mode without cycling the power
to the rig. Disabling the Straight key mode is easier then enabling it using
the band toggle method, as to enable the Straight key mode, it must be
done after the [CALL/IF] button has been pushed and before the frequen-
cy memory mode is enabled, which only gives you about a 2 second win-
dow.
 While in Straight key mode, Message 1 can be sent if it has been previous-
ly stored into memory. Tap the [M/V] button and then tap the key closed
to start the sending of the message. The message can be terminated by
closing the key, but it can not be paused.
 Code speed can be changed using the arrow buttons.
 All functions with the exception of keyer memory entry (which requires a
paddle) are available in Straight key mode.

We hope you enjoy your new
MantiZ QRP FX-2 30/40 Meter CW
Transceiver. For technical assis-
tance, please contact us via the
information
LNR Precision, Inc.
Randleman, NC 27317
www.LNRprecision.com
E-Mail [e-mail]