Hi.. I had the same problem. I had installed the wrong resistor . The coding looked right, but I guess the color was off a bit. Recheck the value of the...
71191
John
n0ure
Dec 31, 2012 6:53 pm
Has anyone found Good, full shield 1/8 plug stereo cables for SDR work? If I have to make my own what cable specification should I use? John...
71192
Zack Widup
w9sz
Dec 31, 2012 7:16 pm
For short runs (10 ft or less) probably not critical. The main concern I'd have would be the coupling between the two lines. I've been thinking of building a...
71193
s_t_marsh
Dec 31, 2012 7:34 pm
Hi, After years gathering dust (!) I have decided to build my Softrock 6.2 transceiver. I intend to get the Si570 control board but in the meantime, how do I...
71194
n2bha
Dec 31, 2012 8:06 pm
Hi Alex, I have used the HLA-150 with my Genesis SDR rigs and finds that it performs best at or slightly below 100W. I have started testing with the Ensemble...
71195
james.farmer59
Dec 31, 2012 8:15 pm
Solder looks ok. If I take it out R52 does not get hot and readings are same as power input. Put U9 in and everything is bonkers again. kb5jof Joe...
71196
Jose Bonanca
ct1aos
Dec 31, 2012 8:34 pm
HAve you measured resistance from the U9 and ground??? Try to measure with the u9 out of circuit. You might also wanto to make sure that the R is 68 ohms. 73...
71197
Sid Boyce
priddix
Dec 31, 2012 9:02 pm
No idea of specs. I use heavy duty low loss speaker cables, type figure "8" they are called, that is a single cable with 2 individually screened cables put ...
71198
D
wanderingaen...
Dec 31, 2012 9:21 pm
I realize that testing at this stage was a previous topic, but since the original thread ended without an answer to my question I thought I'd try again. I am...
71199
n2bha
Dec 31, 2012 9:25 pm
Many Thanks Warren! The T6 isolation transformer was the problem and after a rewind and install I was off to the races. If you take a look at end of the album...
71200
John Williams
jswillms
Dec 31, 2012 10:23 pm
Vaughn, You now have pride of ownership that is superior to any store purchased radio! My biggest thrill was a QSO to Spain from Illinois, USA with 1W of...
71201
warrenallgyer
Dec 31, 2012 10:36 pm
Congratulations Vaughn! That is great news. That feeling of accomplishment is terrific! I strongly recommend you use the low pass filter detailed by Robby for...
71202
n2bha
Dec 31, 2012 10:47 pm
Many thanks to both you and John. I will be building the LP filter tomorrow as I am planning to use it QRP for quite a while. Ran it through the amp because it...
71203
warrenallgyer
Dec 31, 2012 10:49 pm
Paul A reduction from 16 to 12 turns seems too much. I think you need to be absolutely sure you are transmitting on the frequency you expect. It sounds to me...
71204
Alex
malard...
Dec 31, 2012 10:57 pm
Thanks for the reply Vaughn, If your getting around the high 60's on 40m then 10m will probably be around 40 to 50w. Well then it would not be wise to spend...
71205
warrenallgyer
Dec 31, 2012 10:59 pm
Haha... yes the REAL NEW YEAR is not until mid-February but there are enough of us foreigners around to have created a pretty raucous celebration a few hours...
71206
warrenallgyer
Dec 31, 2012 11:06 pm
Hi Alex I wish I had read your posting before I replied separately to Vaughn. Just a note of caution: At 2.5 watts out on 80 meters your third order distortion...
71207
Orin
orinem
Dec 31, 2012 11:10 pm
It just so happens that I put my Ensemble RXTX on the spectrum analyzer this morning. Mine is built for 15-10m. I had tuned the low pass filter for minimum...
71208
warrenallgyer
Dec 31, 2012 11:27 pm
Hi Orin If you have ready access to the VNWA then you can tweak the output filter by squeezing (lowers the cutoff frequency) or spreading (raises it) the turns...
71209
ve9xyz
Dec 31, 2012 11:53 pm
I have built the Softrock Lite II 8.83 MHz IF receiver and am troubleshooting it - one thing I noticed is that there are 3 different sets of parts values in...
71210
Chuck
chucklippmeier
Jan 1, 2013 12:36 am
Hy gang, Last Feb I bought an underground house in Foxboro, MA and I've been busy with projects that involve larger things than SDR like lawn tractors, log...
71211
pauldebono@...
pauldebono...
Jan 1, 2013 1:11 am
Warren, No, at 15 Mhz & above, the output goes back to 4 volts and less. In any case, I do have a good frequency meter and a TS850 to check. Thanks for all...
71212
Orin
orinem
Jan 1, 2013 2:35 am
Or I could put a turn back on L2 and L3. I'm considering switching to a Cauer filter. I tried SVC Filter Designer and it came up with a design with 26dB of...
71213
ve9xyz
Jan 1, 2013 5:14 am
In studying the schematics for the Softrock Lite II T1 Transformer I wonder if I am interpreting it right. From the schematic, the phasings of the transformer...
71214
John Greusel
greusel...
Jan 1, 2013 5:47 am
Chuck, You're in good shape. Download the Christos modified version of PSDR 2.4.4 and follow his instructions for softrock setup. You'll need to use the...
71215
John Greusel
greusel...
Jan 1, 2013 5:52 am
Paul, Could you have a "rogue" ferrite? One that's way off value? John KC9OJV Â ________________________________ From: "pauldebono@..."...
71216
warrenallgyer
Jan 1, 2013 7:42 am
Orin I just was able to take a look at your spectra and I am scratching my head a little. I don't understand the spurious signals at 10 KHz spacing that are...
71217
Alan
alanzfq
Jan 1, 2013 8:29 am
... From: "ve9xyz" <myfamilydotcom@...> To: <softrock40@yahoogroups.com> Sent: Monday, December 31, 2012 11:53 PM Subject: [softrock40] Softrock Lite...
71218
Alan
alanzfq
Jan 1, 2013 8:29 am
... From: "s_t_marsh" <s_t_marsh@...> To: <softrock40@yahoogroups.com> Sent: Monday, December 31, 2012 7:34 PM Subject: [softrock40] Crystal controlled...
71219
Alan
alanzfq
Jan 1, 2013 8:29 am
... Subject: [softrock40] Best Sound card cables? ... John, I found a very nice looking commercial lead that picked up a lot of interference. When I sliced it...
