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Re: mirror image - ensemble II HF
On 21/02/2023 03:10, Peter Matsunaga wrote:
Both left and right outputs work.Peter, I only remember the two being shorted to have been the reason for no IQ cancelling with both signals present. Maybe cable, socket, JP2 jumpers. Possible failures:- Dry joint on T5 secondary. R53, 54. Check voltages/joints on U10, U11. 73 Alan G4ZFQ |
mirror image - ensemble II HF
question : Are there any components that can be burned out or degraded by RFI that would affect the quadrature output?
background-- I built this ensemble II years ago and it's has worked perfectly in the radio shack. A year or two ago it seems to have developed a mirror image problem including on a not so new Win10 I3 machine that used to work fine with it that I still use. It shows mirror images on my macbook, a win10 laptop, another Win10 workstation, or a new Win11 desktop. Realizing that some new computers and my own in particular, do not support a stereo mic input and/or are extremely vague in their techinical spec for the internal sound cards, I tried several USB cards, the latest, a Behringer UCA202 USB unit that definitely supports stereo inputs. No joy on any computer. All that circumstantially isolates the problem to the Ensemble II itself. The ensemble II still receives and tunes fine but I cannot eliminate the mirror image on the display. Both left and right outputs work. (one alone would produce a mirror image). But combined, the quad phase difference should remove the mirror image. Finally - before giving up, I consulted (I probably used that doc to assemble it - the websites have changed in that time ... ) ... checked voltages, etc. I inspected the traces with magnification for shorts, found nothing, but reflowed anything suspicious. I don't have a scope which would probably nail the problem down. Q: what next? Q: which components can malfunction (.e.g. burned out or degraded by RFI ) and affect the quadrature output? thanks all, Peter KH6DK |
Re: F/S Built HF RX II & RXTX 40/30/20 in KM5H Kases, E-MU 0204
On 03/01/2023 23:22, ALICE wrote:
Here the installation disk and other that I used to install it in W10.Thanks, I may try those. All old files. Here is the one I tried September 2016. I made a note that it installed and worked on W10 but seem to remember there were problems. My note:- "Gets EMUU_PCAppDrv_US_1_40_00_BETA.zip 20,474,701 08/09/2016 Offers up to 2x 24 bit 384,000 ksps... On Shed seems to RX 192ksps work in W10.. DELL installed OK without restart...A few audio interruptions but no conflict so far." I'll be interested in any findings, for some reason I did not continue using it but still use 2 of the old Sound Blaster Live! 24 bit 96KHz models 24/7. 73 Alan G4ZFQ |
Re: F/S Built HF RX II & RXTX 40/30/20 in KM5H Kases, E-MU 0204
Win 10
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On Tue, Jan 3, 2023 at 12:01 PM Alan G4ZFQ <alan4alan@...> wrote:
On 03/01/2023 16:33, K2DB Paul Mackanos wrote:Can I get a copy of the original cd, I have the 0204 but need the cd toPaul, |
Re: F/S Built HF RX II & RXTX 40/30/20 in KM5H Kases, E-MU 0204
On 03/01/2023 16:33, K2DB Paul Mackanos wrote:
Can I get a copy of the original cd, I have the 0204 but need the cd toPaul, What OS? There only seems to be drivers for a MAC. I had the original drivers, no good for later systems. I looked for W10 drivers for my 0204 and did not find any that worked properly. 73 Alan G4ZFQ |
Re: F/S Built HF RX II & RXTX 40/30/20 in KM5H Kases, E-MU 0204
Can I get a copy of the original cd, I have the 0204 but need the cd to
have it work. Paul K2DB On Tue, Jan 3, 2023 at 11:30 AM cutsgems via groups.io <cutsgems= [email protected]> wrote: Looking to sell my HF RX II in a silkscreened KM5H case $85 delivered. |
F/S Built HF RX II & RXTX 40/30/20 in KM5H Kases, E-MU 0204
cutsgems
Looking to sell my HF RX II in a silkscreened KM5H case $85 delivered.
HF RXTX built for 40/30/20 in in a silkscreened KM5H case $105 delivered. E-MU 0204 in the original box with original documents, CD & cable. $115 delivered. Non-smoking home. I built both Softrock’s from kits and they performed as expected. As a precaution before offering them for sale here they were both sent to Tony in August for his once over blessing. He complimented me on my workmanship and both tested fine. I don’t often check my old yahoo email, the best is KK4HP@.... I can accept pretty much all forms of electronic, PP, Venmo, Zelle. Or conventional payment. Email me and I’ll be glad to follow up with photos outside & inside. -Charles |
Re: PE0FKO/DG8SAQ firmware conversion to Si5351A?
Hi David,
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Here is a new link to the file: It is the firmware we use in our products to control the Si5351 and is specific to the Cypress PSoC chip.? I only provide it as an example of how to manage the Si5351.? It has been a very long time since I have looked at the Softrock firmware. 73, Ron / W4MMP On 12/5/2022 18:18, David Underwood wrote:
Ron, |
Re: Fivedash liquidation sale- 8.83 MHz
Steve,
I made up a softrock lite II for 8.83 MHz for a Kenwood TS120. When using a 35 MHz crystal in my Softrock Lite II I had a lot of trouble getting enough amplitude out of the crystal oscillator and amplifier to drive the flip-flop divider. It now works after : Both transistors (3904 and 3906) selected for higher gain. I used a little multifunction TC1 box to measure hfe. ..... These part values may be a little different than the official values because I built my own Lite II with the parts I had on hand. C10 ( like C3 in lite 6.2) (base to emitter on Q1) 47 pf C11 ( like C4 in lite 6.2) not used C12 ( like C5 in lite 6.2)(between 2 transistors) 27 pf R16 (base of second transistor to gnd) 10K (replace 22k ) The signal still looks small on a scope, but since it is now centered around 2.5 V it works for the CMOS parts. ........ I did not try the 1000 pf for C4(lite 6.2) because it is not there on Lite II. - Maybe a good thing to try? regards David, K0IMH |
Re: Fivedash liquidation sale
Tony;
I would be interested in the two softrock lite kits. I want to use one of them on a Kenwood TS-940 as the panadapter. IF output it 8.83 Mhz. I saw the special instructions for the build: Build as 40m Lite II, except: X1 = 35.2512MHz C3 = 68pF C4 = 1000pF 73 Steve, KM5HT |
Re: Fivedash liquidation sale
I'd like the built softrock hf rx ii in km5h case and also I'd like thr
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softrock receiver kits. Send an invoice to this email address. If all of the above is not available then I'll take whatever is remaining. Thanks again -Adam W7QI On Fri, Nov 25, 2022, 8:46 AM Tony Parks <kb9yig@...> wrote:
Good Morning Group, |
Re: Fivedash liquidation sale
Hi
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I'd like the Elecraft dummy load. Simon VE7SXS On Fri., Nov. 25, 2022, 11:46 p.m. Tony Parks, <kb9yig@...> wrote:
Good Morning Group, |
Fivedash liquidation sale
Good Morning Group,
I have some of the last items in my possession that I want to sell to cover some personal expenses. A built and properly working HF RX II receiver board in a KM5H metal case, $55 which includes USPS postage to a US address. A not built Peaberry SDR V2 transceiver kit, $65 which includes USPS postage to a US address. Two Softrock Lite II receiver kits, $13 per kit which includes USPS postage per kit to US addresses. I have a number of miscellaneous crystals that I could search through if a Lite II kit with a different center frequency is wanted at no additional charge. A 20W Elecraft Dimmy load, $11 which includes USPS postage to a US address. An AmQRP Elsie L-C meter kit, $11 which includes USPS postage to a US address. If a person has an intress in one of the items above, but not at the requested price, let me know what you would pay and I will consider it in one week from now if the item has not sold. Please contact me directly at kb9yig@... . Thanks, Tony, kb9yig |
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