[linrad] linrad as sun noise measurement tool

Hi, a beginners question again - I am using more and more sun noise as a tool to optimize the frontends on 6, 3 and 1.2cm. What is the "best" way to do this with linrad. For now, I just read the main dB scale visually, which is quite easy to do up to say 0.1 dB. But maybe more intelligent things

[linrad] Re: Multicasting addresses

Hello Leif, Joe, et al. I am reposting this using gmane.com.radio.linrad since my other message did not get through. 73 xtof on4iy -- For the rulebook on address assigment, see http://www.iana.org/assignments/multicast-addresses. Regarding the use of fixed address and port numbers. The question

[linrad] Re: Multicasting

Hi Leif et al, I fail to see the point of the discussion. For now, I haven t seen anybody stepping up to say Multicast is NOT in the version of Linux that is running on his or her desktop. 73 xtof on4iy Leif Asbrink wrote: Hi Chris and all, Nowadays it is even difficult to compile kernel mod

[linrad] Re: Multicasting

Hello Leif, Check with $ ifconfig -a On my stock debian, ifconfig -a shows: eth0 Link encap:Ethernet HWaddr 00:06:5B:87:ED:7D inet addr:192.168.129.2 Bcast:192.168.129.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX

[linrad] Re: complete answer from Roger

Leif Asbrink wrote: Hello Joe ans all, 1. The Network capability does not seem to exist in recent Linrad versions. Is this correct, or am I missing something about starting it up? Yes. I have not put the network back after the multi-thread change. The network was not particularly clever, rat

[linrad] users_hwaredriver.c for Flash Xtal (ESS) and Icom (TRX)

Hi folks, just to let you know I have done the users_hwaredriver.c for a. the Flash Xtal as an agile Linrad LO (in my case on 4*28 MHz feeding into the ESS TM daughterboard). This can also be used for the Softrock 7 instead of the on board Xtal. b. Icom rigs for tuning the TRX TX frequency same

[linrad] Re: Softrock versus Time Machine calibration ctd

Leif Asbrink wrote: Hi Christophe, As for the calibration of flat response I use an HP 8012A pulse generator. This works perfectly for the Softrock. However for the Time Machine it seems like no matter how well I ground and shield there is always LF noise getting into the system... (the Soft

[linrad] Re: Softrock versus Time Machine calibration ctd

Hello Leif, thanks for the premium support on this matter. Since I played around with it quite a lot, I con confirm most of your findings already. a. operating the TM without anything connected to it except battery power works fine. b. connecting either the "regular" supply or the generator, or

[linrad] Softrock versus Time Machine calibration ctd

Hi all, I have a new question regarding the calibration of linrad using the above mentioned devices. I use 28 MHz as my IF. I have successfully performed the image reduction calibration - it works very well. As for the calibration of flat response I use an HP 8012A pulse generator. This work

[linrad] Re: Newbie questions

Christophe Huygens wrote: Hi all, I have some basic questions but even though I have been using Linrad for quite a while I can t seem to find answers. Most of my issues are related to the I/Q signals. My first one is: how does one get into the I/Q cal routine? Upon switching to xlinrad

[linrad] Newbie questions

Hi all, I have some basic questions but even though I have been using Linrad for quite a while I can t seem to find answers. Most of my issues are related to the I/Q signals. My first one is: how does one get into the I/Q cal routine? Secondly, i am using a Time Machine with acceptable resuls f