YouKits EK-1A Скачать руководство пользователя страница 4

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Notice

：

1. Please notice the direction of Relay K1, must follow the direction on PCB

，

also the direction of

Electrolytic capacitors C15,C27,C28,C39, never install them in wrong direction.

2. K1, LED, R30, PHONE are all installed at back side of PCB, please check below pic.

3. After installing all other parts, please install the the back cover and secure the Q9 , solder them to the

PCB and cut the extra leads. Then secure the Q9, but use insulation pad and insulating washer then secure
Q10, as below.

Содержание EK-1A

Страница 1: ...nd 40m 30m 20m CW QRP transceiver kit is easy to build it has SMD finished by the factory There are 2pcs of PCB the main board and display board To guarantee the building success the display board and...

Страница 2: ...rs 100uF 2 C27 C28 IF Transformer 2 T1 T2 Toroid Black core 1 T3 Magnetic inductance Red core 2 L1 L2 enamel insulated wire red yellow 0 5meter each Transistor 2078 1 Q9 LED indicator 5mm red 1 LED re...

Страница 3: ...lated wire about 20cm make 10 turns As above T1 transformer is 8 2 please use red enamel insulated wire about 15cm make 8 turns as primary Use yellow enamel insulated wire about 6cm make 2 turns as se...

Страница 4: ...9 never install them in wrong direction 2 K1 LED R30 PHONE are all installed at back side of PCB please check below pic 3 After installing all other parts please install the the back cover and secure...

Страница 5: ...rator to ANT put generator with a 5uV signal adjust frequency to 7 100Mhz or close to this frequency put EK 1A on same frequency now adjust VC to receive a 700Hz beat frequency then adjust T1 T2 to ma...

Страница 6: ...iting for 2 second display change to below Put your frequency counter to DDS testing point the pad close to R27 Now the frequency counter reading should be same as screen display 10000 00KHz please ad...

Страница 7: ...30M band MOD 30m band only has RX at factory default if you need 30m TX connect A right side of R4 on front display board then you have 40m 30m 20m RX and TX Youkits 2014 12 06...