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very nice site, arjan. i see that you have updated the bitx20 page. why dont you add your site to google dirctory? it is no searchable as of now. do you have a schematic for the 2meter transceiver?

Hi, The beat at 4Mhz is normal due to whole number freq of IF and VFO interacting. Other spurrs have not been encountered here in any of the 10 boards made till date. This indicates probably over

Hello Rahul thank your answer. I will soon check the vfo and the bfo signals. I have tries made various things the antenna entrance short circuit to earth or love want to remain tune connected

Hi! Check VFO and BFO injection levels. It should be aroung 1.5V Pk to Pk. Also note that Q1 as per V3 layout is 2SC2570A or similar high Ft device having a different pin out. Rest all are BC547s.

Lee Dakin wrote:

help Hello all sorry my engels is not so good. only I have a problem and I know not how I this on must discharge. I have now my BITX20 built on the pcb ver3.the rx is excellent but I have as I tune

I am interested in a set for SSB at 10.7MHz. Is apersonal check O.K.? or would you like a postal money order? 73 Lee WA1CQN eternalesquire <eternalsquire@...> wrote: Hi, I just won on Ebay

Just the sort of opinion that enhances amateur radio...... You must let everyone know what it is like to be clever. I'm surprised you actually condescend to use a PC for communicating to the outside

Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the BITX20 group. File : /BITX 20 V1,2&3 /bitxv3.GIF Uploaded by : vu3wjm

Thanks Farhan, I have edited the ckt. Would be uploading soon. Many wanted PCB Ver 3 unfortunately it was not possible for me to provide commercialy, mainly due to time constraints. I had few made

Farhan, The 10 turn pots will give you a "pling pling" tuning effect. The Blue pots are wire wound. I would suggest a tuning cap and a slow motion drive. I will be happy to send you one set

rahul, do go ahead with the schematics. i have no 'property claims' on the design. i am right now doing a bit of upgrading of the design myself. i ill probably share this with the group as soon as i

Dear Farhan, Hi! Many people have requested for the schematics that go with Ver3 PCB posted on the group as it incorporates many mods suggested on the group. I request your kind permission to

Hi! TNX for the manual. here is another similar 2 mixer rig / kit. Pics here: http://www.qsl.net/sp5ddj/antek.htm Deatils here: http://www.cyfronika.com.pl/kityAVT/AVT2310.HTM There is a

Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the BITX20 group. File : /KB1GMX/Epiphyte3Mnl.pdf Uploaded by : ajparent1

In my opinion the finest software for controlling QRP or any other radio equipment costs nothing and was developed thousands of years ago - its called the human brain! No wonder computer programs are

You are right Alison indeed. In one old fujitsu monitor video stages, I found 3 1,2ghz hitachi wide band transistors 2sc4308, 4pf capacitance. There is also several wats output video amplifier

Both are a variation of the Vackar osc and transistor choice, operating point and component quality make a difference. For that VFO the 2SC1815 is a vastly better device than the 2sc372. I know as

Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the BITX20 group. File : /BJT VFOs/ft707 gnd base vfo.pdf Uploaded by :

Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the BITX20 group. File : /BJT VFOs/ft107 gnd base vfo.pdf Uploaded by :