I built the bitx 20 linear(PA) last week end. My first build of the PA was done on the bitx transceiver board itself. It done in dead bug style. When i switched on the power the PA oscillated. I read several posts on the mailing list and tried some adjustments. Still it was oscillating.… Continue reading Building Bitx Part3 – The linear Amplifier
Category: Ham Radio
Photos of inaguration of VU2CLU
VU2CLU is a ham radio station set up at the Kerala State science and technology Museum. The main purpose is to popularize ham radio among general public. The station has several commercial and home brewed equipments for demonstration. The official inauguration of the station was done by Honorable Minister of education Government of Kerala on… Continue reading Photos of inaguration of VU2CLU
Bitx Progressing
The Bitx completed My bitx project has been lying dormant for a couple of months now. I completed wiring about 2 months back. The transmitter was working properly. But the receiver was not receiving anything . When I tried to increase volume, it started howling. After initial testing, I became QRL with lot of other… Continue reading Bitx Progressing
Building Bitx part 2- The crystal filter.
The 10 MHz crystal filter is one of the most important modules of bitx transceiver. Bitx uses an IF of 10 MHz. 10 MHz crystal filters are available at approximately Rs10 ( 1 US$ = Rs40 approximately) in the Indian market. I bought 10 crystals from a local electronics shop. The first thing I did… Continue reading Building Bitx part 2- The crystal filter.
PIC 16F877 prototyping board – part 2
A low cost PIC 16F877 prototyping board is being developed at College of engineering Attingal under my guidance. The credit for develoment goes to Shibu and Manoj. The board is intended for classroom use. The idea is to provide a low cost platform for experimenting with PIC micro controllers. The proposed board will have easily… Continue reading PIC 16F877 prototyping board – part 2