Hi, John. Yes, verfied all IC are correct. Also, if the IC's were wrong I would not get the correct voltage levels on the pins. All pin voltage verifications...
67781
KQ8M
Aug 20, 2012 2:25 am
Hmmmm. OK. Double check U10 and retry the RF path test at the end of the RF path and I/O switching section. Not sure if this has anything to do with anything...
67782
Brian Alsop
k3kok3ko
Aug 20, 2012 2:30 am
Dave,
At this point you need to verify the oscillator is putting out both the correct frequency and a magnitude of >2.5 volts or so. Then you need to check...
67783
KQ8M
Aug 20, 2012 2:41 am
I was thinking the same thing, Brian, but trying to think of things that didn't require extensive test equipment. I bought a bunch of extra chips to be able to...
67784
John Burke
w7bo
Aug 20, 2012 2:55 am
Where can I download the program mostly used with the soft rock so I can download it to check it out while waiting for the radio to come in? Also, is there a...
67785
jaksha@...
jaksha2002
Aug 20, 2012 4:10 am
John and Tim. Ok, here is what I found. I have a cheapo USB scope, but I was able to check some things out. My scope shows something is coming out of the LO,...
67786
Alan
alanzfq
Aug 20, 2012 7:36 am
... Subject: Re: [softrock40] 82pF disc ceramics, can I use surface mounts? ... John, There is a lot of choice...
67787
Alan
alanzfq
Aug 20, 2012 7:36 am
... Subject: Re: [softrock40] Re: help please...at wits end ... drive the quadrature generator IC. Nothing downstream will work without it. ... Perhaps you...
67788
Chris Wilson
chrismwilsonuk
Aug 20, 2012 8:18 am
... 20/08/2012 09:15 No worries Tony, thanks for the offer, but they are cheap as chips and I have now found some here in the UK and ordered them by e-mail for...
67789
Parks, Tony
kb9yig
Aug 20, 2012 8:49 am
Thanks Chris. My goal is always to pack kits 100% accurately and I am quite willing to send immediately any missing parts from a kit order. Hope the kit build...
67790
kn8dmk
Aug 20, 2012 9:55 am
Dave, How about the pesky QSD enable jumper installed? I think we had that about 2 weeks ago on here. Good Luck Bill KN8DMK...
67791
John
v321uk
Aug 20, 2012 10:08 am
Ok you have finished the RX but have you installed Q3 and Q4 and associated R's and Cs ? They pull down pins 1 and 15 of the RX mixer to enable it during...
67792
Chris Wilson
chrismwilsonuk
Aug 20, 2012 10:15 am
... 20/08/2012 11:13 Having great fun with it, just so I am 100% sure it's not me working from obsolete build plans, I am using: ...
67793
John
v321uk
Aug 20, 2012 10:23 am
oops Q3 and Q4 are for RXTX 6.3 you need to do the equivalent for the Ensemble RXTX. Looks like Q9 and Q10 pull down RX mixer enable on the Ensemble RXTX John...
67794
Alan
alanzfq
Aug 20, 2012 10:26 am
... Subject: [softrock40] Re: help please...at wits end ... Bill, That is only on the RX. John, I presume Dave is following Robby's pages. The switching should...
67795
Parks, Tony
kb9yig
Aug 20, 2012 10:29 am
Hi Chris, Yes, you have the current build plans from Robby's website. 73, Tony KB9YIG...
67796
ohwenzelph
Aug 20, 2012 10:31 am
any consensus on which is better? (or if there is any difference)(OR a superior alternative) i am not finding specs or even manuals that i can download and...
67797
jose
ct1aos
Aug 20, 2012 10:43 am
Hi Tony . Onthefivedash there is the build information with an incomplete call sign of WB5RVZ the 5 is missing. I sent you mail about it on the contact us...
67798
Chris Wilson
chrismwilsonuk
Aug 20, 2012 12:45 pm
20/08/2012 13:41 I am building my Ensemble RXTX for the 30,20, 17 meter bands. I see a LPF is needed if working 30 meters. Can I build it into a small diecast...
67799
Sid Boyce
priddix
Aug 20, 2012 1:08 pm
... Unlike coils wound on cylinder formers, all the flux is contained within the toroid core so there is no coupling effect. I'm not sure about touching, I...
67800
Alan
alanzfq
Aug 20, 2012 1:15 pm
... Subject: [softrock40] LPF OK in small diecast case? ... Chris, Nothing critical, except screen it! <https://sites.google.com/site/g4zfqradio/add_lpf> shows...
67801
Chris Wilson
chrismwilsonuk
Aug 20, 2012 1:16 pm
... 20/08/2012 14:15 OK, thanks Sid, will build it "ugly style" with toroids supported away from the walls of the box, cheers and 73 2E0ILY -- Best Regards, ...
67802
Jack Smith
k8zoa
Aug 20, 2012 1:19 pm
It's not quite true that magnetic flux is completely contained within a toroid. First, there's always some leakage flux, and perhaps more importantly, there's...
67803
Peter
ni9n
Aug 20, 2012 2:07 pm
I've had no problem getting HRD and HDSDR to talk to each other using VSPE. I just set up a "connector" device and give it an unused com port number in VSPE,...
67804
Flowers, Susan
seflowers76
Aug 20, 2012 2:15 pm
Hi Jose, Thank you for pointing out the error. It was my mistake and I think I've got it fixed now. Susan, KC9WFU...
67805
John Williams
jswillms
Aug 20, 2012 2:18 pm
Pete, Does your transceiver have hamlib support, perhaps using the softrock support. I run WSPR direct and find it much easier to run that way. I run it on...
67806
jaksha@...
jaksha2002
Aug 20, 2012 3:30 pm
Hi, Alan. I have done the checks noted in the build notes on the transistors switching, but will go through it again tonight after work. I was wondering if I...
67807
K. D. Sarchet
wy5r@swbell.net
Aug 20, 2012 3:46 pm
Dave, Just to make absolutely sure, have you installed Jumper 2 (both wires) correctly? 73 de WY5R - KD <http://dwestbrook.net/projects/ham/dBCalc> JT65A Power...
67808
John
v321uk
Aug 20, 2012 4:09 pm
To confirm measure the voltage at the RX mixer output enable pins 1 and 15 of IC U10 the FST3253. Should be logic Lo to enable the mixer. logic Hi disables...
67809
jaksha@...
jaksha2002
Aug 20, 2012 4:16 pm
OK, before I run off to work, I checked pins 1 and 15 on the mixer. They are low on power up, which I think is the correct condition for RX. I also fired up...
