... So, basically you forgot to plug it in right, an understandable mistake we all might make in the circumstances. But why, then, do you need to quote about...
Or are you _trying_ to look stupid? ;-) So far you have advertised that people is using too much bandwidth but now you started to call names... this is what is...
Hi, I have replaced Q9 and no improvement resulted. It is running hot too and the '5V' rail is 4.1V. I'm still searching for the fault that's taking all that...
Hi Ian, If Q9 was pulled from the circuit does the 5v line still have a high current load? Also with Q9 pulled, what voltages to you read on Q9's base and...
Hi Tony, I have removed Q9 again. The 5V line is 4.32V, U4 is running hot, and the input current at 12.5V is 107mA. Q9 collector pad reads 3.63V, base pad...
Hi Ian, I might suggest that you use the Kelvin method of measuring the resistance on the 5 volts regulated rail, holding the voltage across the rail at less...
Hi Ian, It seems like something else should also be getting hot with a current output from the 5v regulator of over 100 mA. Are you sure U3, a FST3253 on the...
... From: ian mcphedran To: softrock40@yahoogroups.com Sent: Wednesday, August 01, 2007 9:51 AM Subject: Re: [softrock40] SDR40 v6.1 TX/RX stopped working Hi...
Len, why do you have to be so aggressive with comments like " Or are you _trying_ to look stupid? ;-). The smiley face kids no one. You really let your self...
Something else to look into relative to excessive current are the electrolytics, especially if put in backwards. I just pulled two bad ones off a NON SoftRock...
... Kalle, I will have a look at it when I do an integrate in Flaxradio´s PowerSDR version 1.9.0. There is a workaround possible. In the flexradio manual I...
After an uphill pull, the receiver portion of my Softrock RxTx v. 6.2 (30M/40M version) is working nicely with the Rocky software, with a sensitivity of...
Hi Travis, I am pleased that the RX portion of your 40m/30m RXTXv6.2 is working properly for you. However, I want to be quick to say that the various circuits...
... is part ... you set ... I just tried this and it works just fine. I used the prerecorded wave files from the Flex Radio site as a I/Q source since I don't...
The author of Rocky for SoftRock-40 at dxatlas.com suggested I ask this question here. I'm hoping a radio guru can answer this. I downloaded and ran the Rocky...
... When you run an FFT routine on the data from a sound card that has a small DC offset the FFT comes up with the fact that you have a signal at frequency 0,...
... I should have mentioned that if the data from the sound card is first passed through a high pass filter before doing the FFT you can eliminate the data at...
... { I should have mentioned that if the data from the sound card is first passed through a high pass filter before doing the FFT you can eliminate the data...
I heard it said time and time again about quality sound cards and I finally came across a reasonably priced (<$50) used Delta 44 card with the breakout box...
... Good price, do they have more than one? Wait until you try an Edirol Firewire or a Ozy/Janus sound card. Cecil K5NWA www.softrockradio.org www.qrpradio.com...
... I would think an average of the surrounding bins might be better, why? Humans are not rational, that big spike make them worried, a zero on the bins goes...
Hello, Once I started to use my newly built Softrock Lite kit for an IF Stage with my Kenwood TS-940S, I knew that I really wanted some software to control...
... Paranoia: A game for the whole family, and anyone else who might be watching. Just because you're paranoid doesn't mean they're not out to get you. ... No,...
A correction: U3 not U4. ... Sorry, I didn't squint at the circuit diagram enough. I meant a partial short to 5V, i.e. at the FST3253: U3 pins 15-16 where they...
... Looking at the circuit diagram, with nothing connected to /PTT OUT then Q9 should be having an easy life thermally, even if it were partially on or...
Hi Tony, I searched for and found my digital thermometer and took readings on the unit as follows: U1 69.4 F U2 69.2 F U3 72.6 F U4 95 F U5 77 F U6 74.6 F U7...
... 3.63V is too low for the potential divider U4, R35, R40, Q8 base, so the Q9 collector node is definitely connected to something else - I wouldn't have...
Having problems with message search?
Fill out this form to ensure your group is one of the first to be migrated to the new message search system.
