\nsharp schematic<\/a>
\nexplanation<\/a>
\nThe video and audio demodulation was also published by PE1CHY, if someone can deliver me the link I will post it here.<\/p>\n
Once I got the pll software running on an arduino rom based atmel chip I was able to build more software options.
\nI also added the option to adjust the local oscillator setting so you can read out the frequency plus or minus the LO of the LNB or converter.<\/p>\n
![\"Full](\"\/wp-content\/uploads\/2015\/04\/IMG_3464-624x467-big.jpg\")
\nI had to design A new PCB for the extra hardware and the micro controller I wanted.
\n![\"Full](\"\/wp-content\/uploads\/2015\/06\/pcb-layout-and-connections.png\"\/)
<\/p>\n
menu options:<\/h1>\n
Frequency adjust 950MHz to 2150MHz
\naudio carrier 5.5, 6.0 and 6.5 MHz (stereo in combination with 7.02 MHz).
\nLocal oscillator -2147483648 MHz to 2147483647 MHz
\nStep size 1,10,50,100 MHz
\nBandwidth 17 and 28 MHz
\nLow Threshold 0 to 31<\/p>\n
there are 4 buttons connected to the board to adjust the parameters.
\nParameter up
\nAdjust up
\nAdjust down
\nBack to frequency<\/p>\n
Next to that there is also the possibility to connect A pot-meter to adjust the frequency from set frequency to 500 MHz up.
\nAnd an option for input A\/B switch, I did this in the menu but I noticed it’s faster to have A switch for this function.<\/p>\n
Al the above menu settings will be stored in EEprom separate for input A and input B.
\nThis means you can use the receiver for 2 bands and just flip the switch to get from 3 cm to 13 cm.
\nSet input A for example for 10 GHz ( with LNB LO 9000 MHz):
\nLO 9000 MHz
\nvideo positive
\naudio 6,5 MHz
\nbandwidth 27 MHz<\/p>\n
Set input B for example for 2330 MHz ( with chaparral 13cm converter LO 3800 MHz):
\nLO -3800 MHz
\nvideo negative
\naudio 6 MHz
\nBandwidth 18 MHz<\/p>\n
files:<\/h1>\n
schematic (png)<\/a> Several builders have asked me for the type number of the relays I use: V23026-A1001-8202-5V<\/p>\n PE1ACB has his own receiver modified with the software I use on A separate control board, this design has exactly the same options: All software is distributed under the GNU\/GPL licence. Design: I owned an homebrew analog ATV receiver bought from PE1ACB for A while now and was very pleased with the good quality of the video signal. The only thing I didn’t like was the way you had to control the receiver with only the frequency setting on an LCD and A rotary encoder for… Continue reading Analog ATV reciever<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":32,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":[],"_links":{"self":[{"href":"https:\/\/www.pe1br.nl\/index.php?rest_route=\/wp\/v2\/pages\/350"}],"collection":[{"href":"https:\/\/www.pe1br.nl\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.pe1br.nl\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.pe1br.nl\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.pe1br.nl\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=350"}],"version-history":[{"count":49,"href":"https:\/\/www.pe1br.nl\/index.php?rest_route=\/wp\/v2\/pages\/350\/revisions"}],"predecessor-version":[{"id":770,"href":"https:\/\/www.pe1br.nl\/index.php?rest_route=\/wp\/v2\/pages\/350\/revisions\/770"}],"up":[{"embeddable":true,"href":"https:\/\/www.pe1br.nl\/index.php?rest_route=\/wp\/v2\/pages\/32"}],"wp:attachment":[{"href":"https:\/\/www.pe1br.nl\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=350"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\nPCB Board (png)<\/a>
\nPCB parts only (png)<\/a>
\neagle board file<\/a>
\nEagle schematic file<\/a>
\narduino ino file<\/a><\/p>\n
\nPE1ACB design of this project<\/a><\/p>\nCopyrights:<\/h1>\n
\nAll hardware and designs are distributed under a Creative Commons license Attribution-ShareAlike 2.5.<\/p>\n","protected":false},"excerpt":{"rendered":"
![schematic (png)<\/a>\n](\"\/wp-content\/uploads\/2015\/01\/scematic.png\"){kind=link}