TESTING THE HF SSB TRANSCEIVER

HF SSB TRANSCEIVER (Also known as Radio JJ and Radio Nelayan)

• Type : Amateur Radio
• RF Output power : 25-100 Watts
• Transmitter Final : MosFet IRFP150N push pull
• Frequency Range : 80 to 20 meter
• Supply Voltage    : 13.8 VDC
• Current Drain    :  TX max 25 amp  RX 400mA (may varies)
• Mode : SSB (LSB and USB)
• Memory Channel Storage  : 19 Channels
• Receiver Type  : Single Conversion 
• Step 1Hz, 10Hz, 100Hz, 1Khz, 10Khz, 100Khz, 1 Mhz
• Frequency Generator DDS AD9850
• LCD Readout 16x2 Green Colour
• RIT
• Frequency/Channel Locked/Unlocked mode
• Dual VFO
• Analog meter for Signal Strength and RF Power level 
• Built-in AGC
• Built-in Mic Compressor 
• Antenna impedance/connector : 50 ohms / SO-239
• Antenna input : PL259
• Weight : 3.9kg
• Dimension : H 8.5 x  W 25 x L28.5 cm
• Colour Black
• Manufactured : Homebrew Bandung Indonesia 

Microphone connection
Pin 1 -  Mic +
Pin 2 -  Short with Pin 3
Pin 3 -  Short with Pin 2
Pin 4 -  NC
Pin 5 -  PTT +
Pin 6 -  Short witn pin 7 (GROUND)
Pin 7 -  Short with pin 6 (GROUND)
Pin 8 -  NC

Function 

	PRESS ONCE	PRESS AND HOLD FOR TWO SECOND
MODE	CHANGING MODE  USB/LSB (AM,CW UNVERIFIED)	LOCKED/UNLOCK . THE DISPLAY SHOWS “ < > “ PRESS AGAIN FOR UNLOCK
MENU		PROGRAMMING MEMORY CHANNEL
VFO	CHANGING VFO A OR VFO B	DISPLAY WILL SHOW AN ARROW “  -> “ (UNVERIFIED)
RIT	DISPLAY SHOWS “0.000” TURN DAIL FOR INCRESEMENT OR DECRESEMENT	WHEN IN VFO MODE VFO A = VFO B or VFO B = VFO A
STEP	BY PRESSING STEP BUTTON. AN UNDERSCORE WILL BE PRESENT BELOW THE DIGIT. HOLD THE STEP BUTTON TO MOVE THE UNDERSCORE TO THE DIGIT FOR STEP. TURN THE DAIL TO MOVE THE UNDERSCORE LEFT OR RIGHT THEN RELEASE STEP BUTTON AND TURN DAIL KNOB.
MEM (MEMORY)	DISPLAY MEMORY CHANNEL	TRANSFER MEMORY FREQUENCY TO VFO

Programming Memory  channel. (MEM)

1. PRESS AND HOLD MENU BUTTON.

2. PRESS AND HOLD MEM BUTTON UNTILL “SAVE TO M “ APPEARS ON THE SCREEN THEN RELESED MEM  

    BUTTON

3. TURN DAIL TO SELECT MEMORY CHANNEL.

4. PRESS MEM BUTTON UNTILL “SAVING” APPEARS ON THE SCREEN

5. RELEASED MENU BUTTON

This is a Homebrew SSB Transceiver made from Indonesia -Bandung.
No specification or user manual but I will up date for more information near future. Easy to operate with less button and knob.

The price is affordable for newbies. It has very good audio quality on received with built-in AGC. During the test on transmit, I received a very good feed back with more to base audio quality.
There are few modification to enable the Transceiver having continuosly without any gap from 2.100 MHZ right up to 17.100 MHz. The Bandpass Filter (BPF) seem has limited ranges.

Some of you might thinking of using a Antenna Tunner for these radio. Do not whistle as that is bad attitude and could cause interference to others. You might try experiment with low pitch tone just enought to tune the antenna tunner. Used low power when tunning or else the final mosfet might burst.

End Feed antenna are built for low power transmissions or QRP and advisable not to used above 20 watts.

Experimenting with these radio are fun but when goes faulty do not get frustrated, there is always a way when there is a will.

Thanks for sharing and if there are more information and wish to shared with others, please e-mail me. 9m2da@marts.org.my and no spam please. Thank you.

TUTORIAL IDENTIFIKASI RF OUT PADA RADIO BITX (JJ RADIO TRANSCEIVER)

New HF JJ Mobile version

Nice homebrew "Little JJ"

Internal view

The 3 blue button are 

(button colour may varies)

1. Band switch -

Press once to change Band.

Long press nothing change.

BAND 1 - 2.000.00 to 4.999.00 (80m)

BAND 2 - 5.000.00 to 7.499.00 (40m)

BAND 3 - 7.500.00 to  14.499.00 (30m and 20m)

BAND 4 - 14.500.00 to 21.499.00 no function

BAND 5 - 21.500.00 to 30.000.00 no function

2. Mode switch 

Press once to switch mode USB or LSB.

On LSB mode Long press is BFO setting at 9.99650 (Do not change this figure if your number setting is different)
On USB mode Long press is BFO setting at 9.99880 (Do not change this figure if your number setting is different)

3. RIT / CLK

Press once for RIT.

Long press is CLK calibration set to 27.002.26 (Do not change if your setting is different)

Rotary Dail has two function. 

Press the knob for shift. Press again to

move the underscore.

RF power adjustable 0-100 watts PEP.

Size : W 17.2cm * H 7.4cm * L 23.1cm

SPEAKER is on Top chasing. The front right hand side look like speaker but it is not.

SPECIFICATION : as on FB

4 BAND AMATEUR RADIO READY BUILT KITS 

Power Output : 0 - 100watt PEP adjustable from front panel
Receiver : Single Conversion
Transmitter : Exiter BITX, Power Transistor Final TX using MOSFET

Band : 80, 40, 30, 20 meter band ( 4 band )

Mode : LSB dan USB

RIT     : step 10 ( Max. +500 Hz, Min. -500 Hz )

BFO    : LSB dan USB 
DDS type : Si5351
Band Pass Filter : 3 stages up to 15 MHz.

Mic Gain : available from front panel

RF Gain : available from front panel 

S-Meter : digital / bar 

Voltage input : 12 - 14 Volt

Microphone : Hand Mic included

DC cord : included