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Greetings; Is there a way to attenuate incoming signal or have some kind of RF gain control with my Softrock RX ensemble II? 73 Eduardo

Good Morning All, Fivedash has a built SDR receiver offered for sale that is based on the HF RX II receiver. This built receiver board, called the RX Handy, covers a single range such as 4 MHz to 8 MHz for 80m and 40m band coverage. (Other ranges are possible, even 630m.) The RX Handy receiver is a simplified HF RX II receiver circuit design and doesn't require a 12 VDC power supply for operation since all circuits on the RX Handy are powered by the 5 VDC provided in the USB cable plugged into the board. Cables plugged into the RX Handy receiver for normal operation are just the USB plug, the stereo audio output plug and the BNC antenna. The down side of powering the RX Handy from the USB 5 VDC is more center frequency noise, about 3 kHz on each side of the center frequency. The built RX Handy receiver board is a useful HF receiver for casual operation, I typically have on playing every morning as I work on various projects. The various 40m SSB nets make for easy and often interesting listening as I work prior to breakfast. Several who have tried the RX Handy receiver have spoken well of it. This week's project was to take a several year old partially built 6m/2m receiver prototype board, strip off the unused components and build an RD Handy receiver on the board. The old receiver board is the same size as the RX II board and is now playing nicely on 40m. If anyone would be interested in trying an RX Handy receiver, this salvaged receiver is available for $20 post paid to a US customer. Just contact me directly by e-mail. Best regards to all, Tony, kb9yig

I'm parting with the broadcast band stop filter I made last year. Photos: https://imgur.com/a/c01yALp I used this with the Softrock successfully to cut out interference on both LF and HF. BNC connectors. Approx 500- 1700 Khz (+/-10%). $60 shipped, PP ok. Thanks. Please contact off list.

Hi, I have the LF version of the Ensemble RXII for sale for $60 shipped insured CONUS, Paypal ok. Tony built. I have hardly used it. Please contact offlist. Photos: https://imgur.com/a/Mozudnm Thank you.

A number of SDR softwares that run my Ensemble like Winrad , HDSDR and Rocky you can reverse I & Q signals, etc. But you can't do it on Flex PowerSDR software which also runs my Ensemble. Am I missing how to alter the I & Q signals with the PowerSDR software? I checked all settings, don't see it. Al

Let's see if I got this correct . . . So you have the I & Q signals that are at audio frequencies (about what frequencies are they) . . . going into your PC soundcards. Once this gets into your PC via the soundcards . . . it gets changed ( detected ) into "usable" content via the SDR software. I guess that the SDR software uses programming language to do this, does anybody know what programming language? I know alittle about Python, is it a common language or something new & special for this function, acting as a detector? If it is new language, what is it called? Does anybody know of a website that explains this all . . . in depth. Thanks

On my Ensemble RX LSB signals (on 40 meters, for example) tune below (in LSB mode) the "center frequency", they tune perfect, but above that center frequency while it says it is higher frequencies above the center frequency, What I see signal wise above the center frequency are duplicates of signals that are below the center freq. If I put RX in USB mode on these signals above the center I can hear them . . . they are the same signals below the center that comes in LSB, like they should be. The frequency readout above the spectrum display shows from about 7.235 - 7284, but I am not tuning up to 7.284, again, instead just what I see & hear below the center frequency is above the center frequency too, but in USB mode. Is this right ? What am I missing or not understanding here ? I am using Winrad v1.33 or sometimes HDSDR v2.8 software, what I see, occurs on both. My center is set to 7.260. Al

I lost the software for my "old" RX Ensemble , from like back around 2011/12. It has worked flawlessly all these years and was fun to build. In reloading a fresh version of Windows 10, I lost the software. Where can I find the needed software ? I believe it took three things . . . I think they were . . . PEOFKO-USB-Driver ver. 1.2.6.0 , CFGSR and EXTIO ver 1.1 . . . am I correct ??? I need to know if I got the three things needed correctly named ??? The site I have found on Internet, the links to download the software don't work. Thanks, Al

Greetings. I own a Yaesu FT-301D and saw an article about adding a SoftRock Lite II. I am a newbie to SDR but I have been in electronics a long time and know how to install and use hardware and software. https://www.qsl.net/zl3dw/pdf/Softrock%20SDR%20as%20a%209Mhz%20IF%20on%20an%20FT-301.pdf So, I purchased and built the board as instructed. This version is a modification from the 30 Meter version. It has a 11 MHz Crystal and uses a 1/3 under-sampling technique. I was finally able to install it. The first thing i found is that his instructions are a little vague. I connected the SRL II to where he eluded to (Filter module input) and quickly discovered it is wrong. Where he says to connect it is AFTER a 20 KHz Filter at the input to the Filter Board where the 9 MHz IF comes in. With only 20 KHz of signal it wasn't going to end well. The YAesu blanks out the Receiver on Transmit so RF power is not the issue. I moved it to the IF Input pin and have plenty of spectrum now. Another issue is that the SRL II has a 50 ohm input that pulls the IF down. The IF is a higher impedance and is floating due to every connection being capacitively coupled. So, I built a FET RF Buffer circuit. It works great. No issues with impedance mismatch and plenty of drive. S-meter is well into 90%. Now, the problem is setting up the software. I don't quite understand all of the settings. Running the raw install from the get-go I get plenty of spectrum and waterfall display and I can hear something, but no clear output like all of the YouTube videos show. I have the input set for LINE IN as I am using the Line In on the back of my Dell T3500. It has the SOUNDMAX chipset and is supposed to sample up to 196 KHz. The I/Q is set as default separate for now. I don't have the SIAO drivers yet. I am thinking that could be the issue? I usually am on 40 Meters at 7.185 MHz because of various NETS I am on.. I set the L.O. for the same as well as the Tuning setting. I was hoping it would pop right in, but I still cannot hear much discussion. Setting is: 40M, 7.185 MHz / 7185 KHz, LSB. So, that's my story and I'm sticking to it. Hardware is in and seems to work correctly. SDR software is installed (several versions out of frustration) and MAY BE working. Not really sure. Computer needs some updated drivers. My T3500 has 24 GB of RAM and works fine. No crashes. Thank You. 73's. George Blake W6BDD

Has anyone managed to get the Softrock Ensemble II to work on a Raspberry Pi ? If so, please can you guide me to which software to use and how to set it up. Mine used to work on Windows 7, but I can no longer get it to work properly. There is always a double hump of some big noise in the centre of any spectrum display too. I can no longer get any software to tune a software receiver, like GQRX or Quisk. I would love to get this working again and on a R Pi. ANy help appreciated.

Good morning folks. I noted that there is only one posting this month. I also noted that I am now getting off my butt after I had my second right cerebral stroke on Oct22 2021. What an experience that was! My special needs son helped, until Mom arrived from 3 hrs to the north. I was in hospital in Norfolk, VA for 3 days and came home ( 3 hours) ,to learn skills. My beloveds mom passed the day I got home. It was a mess. I am/have mostly learned to walk again, but still a bit wobbly all the way round. I have had some time downstairs to contemplate what I am doing. I am on short term disability, and will retire from University early in Feb. 65 ++. Healthy, thin, except for propensity for cerebral strokes. So…. So, I have many softrocks, some unbuilt. I have considered making my own radios from scratch and have the etching stuff. Not sure here.. Cants… 1. I can not climb roofs anymore :-( 2. A bit wobbly cannot drive long distances but REALLY want to play radio. Still learning driving.. Cans.. 1. I have an EFHW up with transformer I built.. ( if it breaks I am SOL ) 2. I bought a complete, full ground based buddipole, with all options except beams for 6 m. To address 1. I CAN work on ground. 3. I have this odd drive and interest in low/long wave radio. ( Roger VE7VV a guide here.. thanks for website)… not sure here yet.. https://qsl.net/ve7vv/ 4. Need to put ensembles in case and use older software. Possibly look at.code to upgrade it? 5. Build website Haves.. 1. Lots of time on hand to get better and play radio. 2. Create spreadsheet of all the crap I have around here.. radio and test equipment. 3. I did buy a K2 with all the options CW, even low band 160m A store bought, Kit to build.. a Reference device. 4. Purchased copies of Horowitz’s books “ Art of Electronics” and associated materials to relearn a lot of what I lost and to keep busy.. Sounds like a lot.. but here I go. I am not going to be the bump on a log. Heh.. More later. Perhaps I at 65 and wobbly can give a breath of fresh air… I am not shy about sharing. At 65 who gives a sh…t?. God Bless to All. Guy

The W6SFM Samuel F. Morse Amateur Radio Club in Sacramento, CA would like to remind you that our Bug Roundup event will be held THIS Weekend! The Bug Roundup Event is a special time to bring bug operators together on the air. In the same spirit as ARRL's Straight Key Night, participants are encouraged to make simple, conversational, “chewing-the-fat” QSOs using their bug type key. This is an opportunity to exercise, share and exhibit your personalized fist on-the-air. Please join us for this event. Date: Nov 19-21 Local PST (Nov. 20 - 21 UTC) Time: 4:00 PM Friday to 4:00 PM Sunday Pacific Time Local (00:00 UTC through 00:00 UTC ) For more information on the event please visit our Bug Roundup Event page found here: Bug Roundup – W6SFM (http://www.w6sfm.com/bug-roundup/) -- Michael N6MQL President SFM ARC

73 pete m0fmt

I have been completing several stages with satisfaction according to the instructions on the website wb5rvz.org. Last week I finally had the possibility to start the receiver when I reached the RX_OpAmps part. With great surprise and satisfaction, I verified how well it worked in the bands that I have selected for its construction: 17m-20m-30m, with great reception also in 15 m, 40 and 80 m, even in the om broadcasting band. A few days ago I decided to continue and I have completed TX_OpAmp and there I am having problems. The voltage data that had to be obtained when measuring the voltage of ICs U6 and U7 (double operational TLV2462CD) does not correspond to what was expected, the values ??being much lower than expected, the two circuits U6 and U7, give exactly the same measurement sequence voltage on its pins: From PIN 1 to PIN 3 it should be 2.5v and the measurement I get is 1.75v PIN 4 is the only correct 0v (ground) From PIN 5 to PIN 7 it should be 2.5v and the measurement I get 1.72v, 1.75v and 1.76v respectively Pin 8 should be 5v and the measurement I get 3.52v I have gone through the entire assembly without success to find out if there was any confusion in the resistor values ??or any short or ground fault. In the end - big mistake - I estimated that it could be a failure of the voltage regulator of the power supply, so I replaced the voltage regulator TL78L05 (U9 in the Softrock diagram), without any result. This was not the problem. I decided to check how the inputs and outputs of the 7805 voltage regulator behave and I find this surprise: ? With the 7805 output pin in the air, without soldering on the board, I measure: PIN 1 (input) 12.3v and PIN 3 (output) 5.5v ? With the circuit connected on the board in place: PIN1 (input) 5.1v and PIN 3 (output) 3.5v CONCLUSION: The source voltage drops when the 7805 regulator circuit comes into play. The 7805 heatsink gets very hot, plus the Dividers Stage components get hot too, including the U5 divider IC (74AC74 Dual D FF). As a result the softrock rxtx receiver has stopped working and I don't know how to solve the problem. I would appreciate your help to solve these problems and continue with this interesting project. Thank you. José María, EA4B

I have been completing several stages with satisfaction according to the instructions on the website wb5rvz.org. Last week I finally had the possibility to start the receiver when I reached the RX_OpAmps part. With great surprise and satisfaction, I verified how well it worked in the bands that I have selected for its construction: 17m-20m-30m, with great reception also in 15 m, 40 and 80 m, even in the om broadcasting band. A few days ago I decided to continue and I have completed TX_OpAmp and there I am having problems. The voltage data that had to be obtained when measuring the voltage of ICs U6 and U7 (double operational TLV2462CD) does not correspond to what was expected, the values being much lower than expected, the two circuits U6 and U7, give exactly the same measurement sequence voltage on its pins: From PIN 1 to PIN 3 it should be 2.5v and the measurement I get is 1.75v PIN 4 is the only correct 0v (ground) From PIN 5 to PIN 7 it should be 2.5v and the measurement I get 1.72v, 1.75v and 1.76v respectively Pin 8 should be 5v and the measurement I get 3.52v I have gone through the entire assembly without success to find out if there was any confusion in the resistor values or any short or ground fault. In the end - big mistake - I estimated that it could be a failure of the voltage regulator of the power supply, so I replaced the voltage regulator TL78L05 (U9 in the Softrock diagram), without any result. This was not the problem. I decided to check how the inputs and outputs of the 7805 voltage regulator behave and I find this surprise: ? With the 7805 output pin in the air, without soldering on the board, I measure: PIN 1 (input) 12.3v and PIN 3 (output) 5.5v ? With the circuit connected on the board in place: PIN1 (input) 5.1v and PIN 3 (output) 3.5v CONCLUSION: The source voltage drops when the 7805 regulator circuit comes into play. The 7805 heatsink gets very hot, plus the Dividers Stage components get hot too, including the U5 divider IC (74AC74 Dual D FF). As a result the softrock rxtx receiver has stopped working and I don't know how to solve the problem. I would appreciate your help to solve these problems and continue with this interesting project. Thank you. José María, EA4B

Is there any software, other than Rocky, that uses the key input on an Ensemble RXTX? As a bonus, is the latency low enough to use it with a side-tone? Seems like everything I've seen so far requires the CW key to be connected to the PC somehow. TIA, Brent, AB1LF

I'm interested in the 40, 30, 20m version but wondering about the low pass filter. Is one required for each band? I think the kit comes with parts for one filter? Would these filters be usable if I were to add a 5w or 20w amp? I having a hard time finding info about the rig but think I may have arrived at the right place. Thanks. 73, Paul VA3ZC

All, I just indulged in a highly rated 192kHz USB sound adapter. It's a Behringer "U-Phoria" UMC202HD. For use with the Softrock, I had to get a couple of mini-stereo-phone-plug to two 1/4inch phone plug cables. Unfortunately, I couldn't get it working. Rocky fails with various low-level OS complaints - stuff like "wrote to an illegal address". HDSDR won't even start the radio. This is on a Windows 10 desktop. Just on ordinary Windows, it works fine as a sound output device. Delivers absolutely gorgeous sound to my Bose QCII headset. - Jerry KF6VB

Hello, I'm definitely enjoying the softrock/tiny-linear combination. I never had a rig with a panadapter before, and it could get addicting. What's not addicting is the forest of little circuit boards, pods and cables on my desk. This mess just begs to be packaged in an enclosure that looks like a radio. As a first cut - I'm thinking of sticking the Softrock board, a usb sound card, and the tiniest possible USB hub - in a box. For a later project - it sure would be cool to have it in a box with a computer & display - hence a complete radio. I see people have done that with a Teensy....? - Jerry KF6VB

Does the Teensy SDR do transmit?