pa3emygeneric.blogspot.com
PA3EMY: September 2014
http://pa3emygeneric.blogspot.com/2014_09_01_archive.html
PA3EMY Ham radio activities. Monday, September 15, 2014. 80 /20 MHz transceiver fan problem audio problem. I have decided to make the transceiver for 80 meter only. I may reconsider but I don't want to spend too much time on this radio. I intend to use it as a signals source for experiments with IRF510 based amplifier for 80 meter. Subscribe to: Posts (Atom). Spectrum analyzer using TV tuner. CB to 7 MHz transverter. 50 MHz SSB transceiver. 144 MHz FM transceiver. View my complete profile. 9 MHz if strip.
pa3emygeneric.blogspot.com
PA3EMY: December 2011
http://pa3emygeneric.blogspot.com/2011_12_01_archive.html
PA3EMY Ham radio activities. Wednesday, December 28, 2011. I finally found some time to work on the transverter. Now the transverter/cb radio is able to receive 160-10 meter. It consists of the folowing parts:. LO: sdr kits si570 vfo. Switchable bandpass filter: comes from russian ham parts. Power supply: Transformer taken from cb power supply. The Mixer is a sbl-1. The LO signal is amplified by a bfy-90 amplifier. This signal drives the mixer. I will give it a try anyway. Subscribe to: Posts (Atom).
pa3emygeneric.blogspot.com
PA3EMY: 80 /20 MHz transceiver fan problem audio problem
http://pa3emygeneric.blogspot.com/2014/09/80-20-mhz-transceiver-fan-problem-audio.html
PA3EMY Ham radio activities. Monday, September 15, 2014. 80 /20 MHz transceiver fan problem audio problem. I have decided to make the transceiver for 80 meter only. I may reconsider but I don't want to spend too much time on this radio. I intend to use it as a signals source for experiments with IRF510 based amplifier for 80 meter. Subscribe to: Post Comments (Atom). Spectrum analyzer using TV tuner. CB to 7 MHz transverter. 50 MHz SSB transceiver. 144 MHz FM transceiver. View my complete profile.
pa3emygeneric.blogspot.com
PA3EMY: February 2014
http://pa3emygeneric.blogspot.com/2014_02_01_archive.html
PA3EMY Ham radio activities. Sunday, February 16, 2014. I have a new toy. A HP spectrum analyzer that works up to 350 MHz. I already own a spectrum analyzer. It is an Atten that works from 0 to 1000MHz. It only has 1 filter that is more than 200 KHz wide. It is usable but this HP is much better. Saturday, February 15, 2014. Two years ago I bought a Kenwood TR7200. It is a well know 2 meter FM radio. It uses xtals. I did not use it much as I only have 2 channels that are usable. In CW mode the signal does...
pa3emygeneric.blogspot.com
PA3EMY: CHN 80-20 tranceiver continued
http://pa3emygeneric.blogspot.com/2014/03/chn-80-20-tranceiver-continued.html
PA3EMY Ham radio activities. Saturday, March 1, 2014. CHN 80-20 tranceiver continued. I fixed the problem with the RIT. It was wired incorrectly. The TX/Rx leds now work for both 80 and 20 meter. These too were wired incorrectly. Somehow I made shortcircuit somewhere. This blew a BD137 power transistor. Fortunately I had a few more in the junk box. At 80 meters I was able to get a bit more than 10 Watts CW. SSB however was at 3 Watt max. Subscribe to: Post Comments (Atom). Spectrum analyzer using TV tuner.
pa3emygeneric.blogspot.com
PA3EMY: chn-8020 transceiver
http://pa3emygeneric.blogspot.com/2014/02/chn-8020-transceiver.html
PA3EMY Ham radio activities. Thursday, February 6, 2014. I just bought a defect chn-8020 transceiver from a fellow ham. The transceiver is a home made transceiver designed in 1980? By PA0CHN It covers 2 bands, 20 meter and 80 meters. ssb/cw 10W output. IF is 9 MHz.'. It iused to be popular here in the netherlands. This unit was not in a good state. It needs a lot of work. It was not completed by the builder. It was not build by the ham I bought it from so its history was unclear. CB to 7 MHz transverter.
pa3emygeneric.blogspot.com
PA3EMY: November 2012
http://pa3emygeneric.blogspot.com/2012_11_01_archive.html
PA3EMY Ham radio activities. Monday, November 19, 2012. It has been a long time since I have used digital mode. So I bought a signalink usbinterface. Now I can make a restart in digital modes. An old pentium PC was available for the coding and decoding. The transceiver I use is an old ICOM IC-730. I also have an IC-817 this one works ok but the IC-730 has a better receiver. The modes That I use are: WSPR, PSK31, JT65 and ROS. Below is a picture of a part of the shack. Subscribe to: Posts (Atom).
pa3emygeneric.blogspot.com
PA3EMY: TR7200
http://pa3emygeneric.blogspot.com/2014/02/tr7200.html
PA3EMY Ham radio activities. Saturday, February 15, 2014. Two years ago I bought a Kenwood TR7200. It is a well know 2 meter FM radio. It uses xtals. I did not use it much as I only have 2 channels that are usable. The other xtals were for USA frequencies in the 146 MHz range. Now I bought some xtals for it. Now I can use the following frequencies. Subscribe to: Post Comments (Atom). Spectrum analyzer using TV tuner. CB to 7 MHz transverter. 50 MHz SSB transceiver. 144 MHz FM transceiver. 9 MHz if strip.
pa3emygeneric.blogspot.com
PA3EMY: March 2011
http://pa3emygeneric.blogspot.com/2011_03_01_archive.html
PA3EMY Ham radio activities. Sunday, March 6, 2011. Capacitors still cause problems. I made series circuit using 3 capacitors. Then I used 3 of those circuits parallel. Unfortunately they still get too hot . So I switched to 400 Volt mks capacitors. Those too get too hot. I found out on a forum that I need polypropylene types. Next week I will try to buy them. I hope the local store sells them. Subscribe to: Posts (Atom). Spectrum analyzer using TV tuner. CB to 7 MHz transverter. 50 MHz SSB transceiver.
