14MHz SSB 10mW transceiver


Posted on Apr 9, 2012

The whole Construction : You can call the transceiver like this as `OZL type`. Characteristics of the `OZL type` are as follows. 1. Single conversion super. 2. Using two DBM-s as modulator and converter. 3. Modulator DBM is used as demodulator in receiving time. 4. All amplifiers are used in transmitting and receiving time. 5. Case is second use of my failed or useless machine.(This time I used my useless old 10W 7MHz transmitter.) 6. All decals are done with the `Magic ink`. Very simple way! 7. Normal `OZL type` uses 12V DC power from cigar lighter of the car.


14MHz SSB 10mW transceiver
Click here to download the full size of the above Circuit.

But in this machine I used 20V DC from my DC power supply. The reason of my choosing high voltage are as follows. One reason is in order to press the variable capacitor of the VXO oscillator for it`s minimum capacitance and to get the highest frequen




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

2-Wire LCD Interface using PIC16C84
1.3 Volt Power Source
Scope-extender
Single Ltc Power Supply Circuit
Super Motion Sensor Ultrasonic Motion Detector
Scheme research and design of the ultrasonic range measurement system
Light-sensitive Alarm Project
Quantizer
MAX786 TEA5711T Application Circuit
build a blinking safety light for your bicycle
high voltage circuits
Crystal Oscillators
Multiplicative -DA converter electronic attenuator
Temperature compensation of the symmetrical power supply 7812 F007C
Three phase torque motor speed control circuit



Top