Search found 92 matches

by P-40 Warhawk
Sun Sep 14, 2014 7:39 pm
Forum: RTL-SDR Discussion
Topic: RTL+R820T2 direct sampling DLL
Replies: 6
Views: 13076

Re: RTL+R820T2 direct sampling DLL

Hi Max . With out any mod's to the dongle you can get 12 , 10 , 6 , and 2 meters ham bands . Now to get anything with sdr dongle you will need a bigger antenna than you got with the kit . That antenna is only good for frequencies higher than 600mhz A disk cone antenna is something you should get . W...
by P-40 Warhawk
Sun Sep 14, 2014 3:26 pm
Forum: RTL-SDR Discussion
Topic: RTL+R820T2 direct sampling DLL
Replies: 6
Views: 13076

Re: RTL+R820T2 direct samplingDLL

Hi . I live in Pensacola Florida . Were do you live ???????? Now here some things that I hope you find helpful . To get the HF - 500khz to 30mhz you will need to bypass the R820T2 chip with T37-43 toroid with 15 turns on the primary and 39 turns on the secondary , use number 30 wire or use T16-6t-kk...
by P-40 Warhawk
Mon Aug 25, 2014 1:52 pm
Forum: User Projects
Topic: Help with Unitrunker
Replies: 0
Views: 11933

Help with Unitrunker

Has anybody gotten the new newest version of unitrunker to work . I am having problems with getting the Unitrunker to work . I have done everything that is in the quick start guide and it's at step # 8 when the play button is pressed is were the problem is . I am not getting the next window to come ...
by P-40 Warhawk
Mon Aug 25, 2014 1:49 pm
Forum: RTL-SDR Discussion
Topic: Help with Unitrunker
Replies: 2
Views: 6171

Help with Unitrunker

Has anybody gotten the new newest version of unitrunker to work . I am having problems with getting the Unitrunker to work . I have done everything that is in the quick start guide and it's at step # 8 when the play button is pressed is were the problem is . I am not getting the next window to come ...
by P-40 Warhawk
Mon Aug 25, 2014 1:47 pm
Forum: Troubleshooting Help
Topic: Help with Unitrunker
Replies: 0
Views: 6631

Help with Unitrunker

Has anybody gotten the new newest version of unitrunker to work . I am having problems with getting the Unitrunker to work . I have done everything that is in the quick start guide and it's at step # 8 when the play button is pressed is were the problem is . I am not getting the next window to come ...
by P-40 Warhawk
Wed Aug 20, 2014 11:50 pm
Forum: Troubleshooting Help
Topic: Unitrunker
Replies: 0
Views: 6461

Unitrunker

First I would like to say HI to everyone . I am having problems with getting the Unitrunker to work . I have done everything that is in the quick start guide and it's when I hit the play button is were the problem is . I am not getting the next page to come up . I do get audio and the signal is good...
by P-40 Warhawk
Tue Aug 05, 2014 8:24 pm
Forum: RTL-SDR Discussion
Topic: 50 ohm to 200 ohm matching transformer
Replies: 0
Views: 7171

50 ohm to 200 ohm matching transformer

I was told by a friend to make my thread simple about the T37-43 toroid with 200 ohm on the secondary . Well here it goes , I found that Mini-Circuits makes a RF matching transformer ( T16-6T-KK81 , part number ) that gives about 19DB higher signal that T37-43 toroid with 200 ohm on the secondary . ...
by P-40 Warhawk
Wed Jul 30, 2014 12:06 am
Forum: RTL-SDR Discussion
Topic: Sound Card
Replies: 1
Views: 5788

Sound Card

I have gotten to the point were I would like to start decode radio signals . Now I am not sure were I read that I would need a good sound card to do the decoding because the sound chip the mother of the computer isn't good enough to do the job . Would someone be kind enough to let me know if I need ...
by P-40 Warhawk
Sat Jul 26, 2014 12:24 am
Forum: RTL-SDR Discussion
Topic: More on T37-43 toroid and Independence on the secondary .
Replies: 0
Views: 7043

More on T37-43 toroid and Independence on the secondary .

I have been messing around with different turns and I found the more turns on the secondary, it gives you more signal amplitude . Well I found a calculator on line for matching transformers , I have included the web site for everyone . I made two of them . Since I am using 75 ohm cable , I used the ...
by P-40 Warhawk
Fri Jul 25, 2014 9:46 pm
Forum: RTL-SDR Discussion
Topic: My reply to me1900
Replies: 0
Views: 6223

My reply to me1900

I don't understand why you would try to hookup a balanced transmission line like 450 ohms to a unbalanced 50 ohm input . You would have to make a matching transformer that would take the 450 ohm balanced transmission line and make it to 50 ohms unbalanced input for the primary winding to the T37-43 ...