LXQQFY 51 Super RM Rock Mite QRP Kit Instruction Manual
- October 30, 2023
- LXQQFY
Table of Contents
51 Super RM Rock Mite QRP Kit
Instruction Manual
40 meter band transceiver 7.023 MHZ DIY KIT，Short‐wave radio transmitter receiver
Main indicators
Power supply: 12V (battery or linear regulated power supply is
recommended for the)
Antenna: 50 ohms, is not balanced
Transmission power: 3.5W (9V power supply), 5W (12V power supply)
Frequency: launch the vibration frequency, 7023KHZ；Receive this
frequency: About 7023‐7026 KHZ
Working pattern: the CW
Automatic/manual keys
This circuit has the function of automatic identification of automatic and
manual keys, as long as the manual button to connect to the mono or referring
to the following figure to stereo plug in the middle of the ring and the
ground can be together, open the power supply when STC12C4052 SCM according to
the inserted key for automatic detection.
Key plug wiring diagram
The key board
SW1: to improve lateral sound frequency
SW2: lower side tone frequency
SW3: automatic launch store number
SW4: improve the rate of fire
SW5: emission reductions
Under normal circumstances, such as no antenna, the headset should be quiet,
if found to have low frequency sound, can be between 1 to 2 feet of the
NE5532, pick 1only 20p – 471p Ceramics capacitors, to eliminate self‐excited.
Component listing
| resistance | Electrolytic capacitor |
|---|---|
| R1 | 0Ω |
| R2, R3 | 22Ω |
| R4 | 100Ω |
| R5, R6, R26 | 200Ω |
| R7, R8, R9, R10 | 470Ω |
| R11, R12, R13, R14, R27 | 1K |
| R15 | 2.2K |
| R16, R17, R18, R19, R20, R21, R22, R23, R24, R25 | 4.7K |
1N4148
R28, R29| 10K| D3, D4| 1N4001
R30, R31| 22K| Q1| 9018
R32, R33| 47K| Q2| D882
R34| 100K| Q3, Q4| 8050
R35, R36| 220K| 5| 2N7000
R37, R38| 470K| 6| 8550
Adjustable resistance| 07, Q8, Q9| 9013
Wl, W2| 47K (473 )| D10| LED red
inductance| D9| LED green
T1, T2 circular| FT37-43 black| IC
Ll, L2 circular| T37-2 red| U1| 7805
Z1| Magnetic beads| U2| NE602 ( DIPS)
Ceramics capacitors| U3| NE5532 (DIPS )
C22, C23, C24, C25, C26, C27, C28, C29, C30, C31, C32, C33, C34| 0.1uF (104 )|
U4| STC12C4052AD
C13, C14, C15, C16, C17, C18, C19, C21| 0.01uF (103 )| U5| MAX232E
Cl. C2, C3, C4| 30pF or 33pF| Other components
C7, C8| 100pF (101 )| J1| BNC (Q9 ) socket
C5, C6| 56pF| J2| DC socket
C9, C10, C11, C20| 470pF (471 )| J3| 3.5mm ( PHONE )
C12| 1000pF (102)| J4| 3.5mm ( KEY)
Crystal| RS232 A serial port female head
Yl, Y2, Y3| 7.023MHz| SW1, SW2| Micro switch
Y4| 11.0592MHz| SW3, SW4, SW5| Micro switch
Heat sinks| PCB X 1
0.51mm Enameled wire| 51 ohms resistor/test with load
T1: FT37‐43 black
T2: FT37‐43 black
L1 L2: T37‐2 red.
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