Hi Rick The additional filters are to be used only for the lowest band in the group covered by your particular build. In your case you would put the filter in...
72617
warrenallgyer
Mar 7, 2013 4:41 am
Jim The signal out on Pins 7 and 9 will be just about the same level as the RF signal in. So, unless you are putting a very high level signal into the antenna,...
72618
Alan
alanzfq
Mar 7, 2013 6:15 am
... Subject: [softrock40] Followup to FInally Done & Filter Question ... Rick My way https://sites.google.com/site/g4zfqradio/add_lpf 73 Alan G4ZFQ...
72619
Alan
alanzfq
Mar 7, 2013 6:31 am
... Subject: [softrock40] Was Working now 1/2 Power ... Mike , ... This does get quite hot. ... Should do no harm. Could one of the FETs have gone bad? Is...
72620
Patrick Bowen
ac0sr
Mar 7, 2013 6:44 am
... Manhattan style on small piece of copper clad board -- then stuck in an Altoids container (of course!) with connectors on either end. That way I can use it...
72621
Alan
alanzfq
Mar 7, 2013 6:55 am
... Subject: [softrock40] RXTX Ensemble U10 Failure ... Jim, With pins 7 & 9 low it could be U10 but look again for bad joints or solder splashes first....
72622
Ed
ed.murphy31
Mar 7, 2013 12:51 pm
... Hi Sid, It sounds that you have got a good set of matched parts. With reference to the matching circuit shown in the files section:- For good parts,...
72623
Triton
kb7skb
Mar 7, 2013 12:54 pm
Thanks for your reply.. Shouldn't I expect to see roughly 2.5v on pins 7/9 in RX mode? Thanks, Jim - kb7skb...
72624
Triton
kb7skb
Mar 7, 2013 1:08 pm
PTT disabled - I just checked pin 7/9 to ground and it appears pin 7 is shorted to pin 8. I'll remove and reinstall U10. Maybe too much solder paste under the...
72625
warrenallgyer
Mar 7, 2013 1:27 pm
Robby's documentation clearly calls for 2.5 volts on pins 7 and 9. Having the luxury of a scope, I have never done DC testing in this area but it would appear...
72626
Sid Boyce
priddix
Mar 7, 2013 1:30 pm
Thanks Ed, Very useful information. Looks like all of mine are well within spec. 73 ... Sid. ... -- Sid Boyce ... Hamradio License G3VBV, Licensed Private...
72627
kb9gpm
Mar 7, 2013 3:41 pm
I'm planing on doing the Altoids can too with BNC connectors. The only difference is I'm thinking about also adding a bypass switch. That way I won't have to...
72628
davidlopez2@...
davidlopez2...
Mar 7, 2013 8:34 pm
Is there a link to the schematics for these external filter assemblies with parts list? I would like to build these filters for my unit. Is there a...
72629
Mike Saeger
devmrs
Mar 7, 2013 9:00 pm
I fixed the key clicks. I sent audio from Rocky to a virtual audio cable and from there to my sound card and it sounds pretty good now. Apparently, Rocky...
72630
Jasmine Strong
h_e_r_o_i_c
Mar 7, 2013 9:06 pm
With very few exceptions (notably, Apple hardware), notebook computer audio is wretched. It has a high noise floor, is full of birdies, and generally has much...
72631
richard.lawn@...
richard.lawn...
Mar 7, 2013 9:54 pm
As I posted I've finally finished the RXTX build. I could use some help in testing the final stage. The final pages of the instructions are all about testing...
72632
Alan
alanzfq
Mar 7, 2013 10:04 pm
... Subject: [softrock40] Help Testing Xmitter ... Rick PSDR requires you to setup the jumpers to suit. All other software has an IQ swap setting if needed. 73...
72633
davidlopez2@...
davidlopez2...
Mar 7, 2013 10:25 pm
I am trying to understand the purpose of this Delta 44 interface module. I don't see the how it interfaces in the overall block diagram. See this link for...
72634
John Williams
jswillms
Mar 7, 2013 10:42 pm
It plugs directly into the delta44 and removes the need for a breakout box and 1/4" plugs. You can plug 3.5mm cables directly into the module and into the rxtx...
72635
MICHAEL TALLENT
w6mxv
Mar 7, 2013 10:48 pm
The Delta 44 comes with a break-out box that plugs into the card in your computer and has 1/4 inch jacks to connect to the 4 channels in and out. You would...
72636
Alex
malard...
Mar 8, 2013 12:04 am
Hi Paul, It is not compatible with the ap192. I have both cards and the breakout box for the delta44 is 15 pin and the ap192 is 25 pin. It is completely...
72637
Alex
malard...
Mar 8, 2013 12:13 am
Hi Mike, I just want to correct you about the number of pins on the delta44 breakout box. It is a DB15 pin, not a DB25 pin. We don't want to confuse Mike on...
72638
warrenallgyer
Mar 8, 2013 12:14 am
Jasmine I am going to argue with you a bit on this. Everything you say is true in the world of high quality recording audio. And, of course, a computer with...
72639
eb4apl
Mar 8, 2013 12:18 am
Notice about S meter calibration: The Softrock Ensemble RX has 14 dB pads in series with the 2 lower bands. It purpose has been explained here, but as far as...
72640
Richard Lawn
richard.lawn...
Mar 8, 2013 12:22 am
Not sure if you need it if you are using with an amp that already has all the necessary filtering. Rick W2JAZ...
72641
Rick
n3ikq
Mar 8, 2013 12:58 am
Thank you so much!...
72642
warrenallgyer
Mar 8, 2013 1:06 am
The filters are documented in Robby's page at http://www.wb5rvz.org/ Remember, you do not need a filter for every band. The external filter is only required...
72643
Rick
n3ikq
Mar 8, 2013 1:27 am
Thank you in advance for your time! I determined the final number of windings for each coil with an LCR meter. I figured I was shooting for a certain value of...
72644
richard.lawn@...
richard.lawn...
Mar 8, 2013 1:35 am
72645
richard.lawn@...
richard.lawn...
Mar 8, 2013 1:45 am
I'm trying to figure out now that I've finished the build why the rcvr is no longer working., I Discovered that when I check continuity on the 2 primary pairs...
