# Latest **URL:** https://www.ruby-forum.com/latest.md?page=454 [Latest](https://www.ruby-forum.com/latest.md) · [Categories](https://www.ruby-forum.com/categories.md) · [Tags](https://www.ruby-forum.com/tags.md) **Page:** 455 --- ## [Problem with receiving signal from satellite Thuraya-3](https://www.ruby-forum.com/t/problem-with-receiving-signal-from-satellite-thuraya-3/238785)
**Author:** [@musicdenotation](https://www.ruby-forum.com/u/musicdenotation)\ **Replies:** 11\ **Last updated:** [January 30, 2014, 1:50am UTC](https://www.ruby-forum.com/t/problem-with-receiving-signal-from-satellite-thuraya-3/238785 "2014-01-30T01:50:33Z")
Hi, I am trying to collect signal from Thuraya-3. Here is the setup I used: USRP N210 + WBX LNA with 30dB gain (ZHL-1217MLN) Iridium Antenna (I don’t have specific antenna for Thuraya right now. Since Iridium and Thu… --- ## [Float version of the Frequency Xiating FIR Filter?](https://www.ruby-forum.com/t/float-version-of-the-frequency-xiating-fir-filter/238812)
**Author:** [@musicdenotation](https://www.ruby-forum.com/u/musicdenotation)\ **Replies:** 1\ **Last updated:** [January 30, 2014, 1:30am UTC](https://www.ruby-forum.com/t/float-version-of-the-frequency-xiating-fir-filter/238812 "2014-01-30T01:30:36Z")
I am attempting to translate a 20khz DRM signal from its default spot of 10khz, to 120khz. The Frequency Xiating FIR does this just fine but it also decimates the signal–which I do not want. I want to pass the float i… --- ## [Local gem repo with just the latest versions](https://www.ruby-forum.com/t/local-gem-repo-with-just-the-latest-versions/238740)
**Author:** [@Detlef\_R](https://www.ruby-forum.com/u/Detlef_R)\ **Replies:** 4\ **Last updated:** [January 30, 2014, 12:37am UTC](https://www.ruby-forum.com/t/local-gem-repo-with-just-the-latest-versions/238740 "2014-01-30T00:37:25Z")
Rubygems totalled about 75GB last time I looked but that includes all the old versions of each gem. I would like to create a local gem repository but only download the latest version of each gem. Is it possible? gvim … --- ## [Watir/Ruby : How to click on a text in dropdown in Ruby/Watir](https://www.ruby-forum.com/t/watir-ruby-how-to-click-on-a-text-in-dropdown-in-ruby-watir/238776)
**Author:** [@Detlef\_R](https://www.ruby-forum.com/u/Detlef_R)\ **Replies:** 2\ **Last updated:** [January 30, 2014, 12:34am UTC](https://www.ruby-forum.com/t/watir-ruby-how-to-click-on-a-text-in-dropdown-in-ruby-watir/238776 "2014-01-30T00:34:05Z")
I am using the WATIR-Ruby for my Web Application. I am currently facing an issue clicking on a text element that is populated dynamically when a search bar is partially/completely filled with text. The code is unable … --- ## [PyBOMBS issue using recipe with hierarchical git branch](https://www.ruby-forum.com/t/pybombs-issue-using-recipe-with-hierarchical-git-branch/238807)
**Author:** [@Detlef\_R](https://www.ruby-forum.com/u/Detlef_R)\ **Replies:** 1\ **Last updated:** [January 29, 2014, 6:33pm UTC](https://www.ruby-forum.com/t/pybombs-issue-using-recipe-with-hierarchical-git-branch/238807 "2014-01-29T18:33:14Z")
Hello, I tried adding a recipe to PyBOMBS for UHD-Fairwaves, setting gitbranch to “fairwaves/umtrx”. However, when I run install, “fairwaves” is stripped from the branch hierarchy and so it fails since there is no br… --- ## [Flow graph with high complexity operations](https://www.ruby-forum.com/t/flow-graph-with-high-complexity-operations/238796)
**Author:** [@musicdenotation](https://www.ruby-forum.com/u/musicdenotation)\ **Replies:** 2\ **Last updated:** [January 29, 2014, 6:12pm UTC](https://www.ruby-forum.com/t/flow-graph-with-high-complexity-operations/238796 "2014-01-29T18:12:07Z")
Hi all, I’ve created a simple flow graph with three components. The first one generates K \* L number of values (it is a loop), it passes them to the next one where I do some operations on them. I want it to run just … --- ## [Help about using gr-air-modes](https://www.ruby-forum.com/t/help-about-using-gr-air-modes/238744)
**Author:** [@Detlef\_R](https://www.ruby-forum.com/u/Detlef_R)\ **Replies:** 11\ **Last updated:** [January 29, 2014, 6:00pm UTC](https://www.ruby-forum.com/t/help-about-using-gr-air-modes/238744 "2014-01-29T18:00:23Z")
Hi, I am using gr-air-modes for decoding the air plane signal with USRP. I’ve successfully used the “modes\_rx” and “modes\_gui” for decoding the mode-S packets. However, it seems that the modes\_rx or modes\_gui can’t … --- ## [Using 'gets' sends uknown data](https://www.ruby-forum.com/t/using-gets-sends-uknown-data/238800)
**Author:** [@Detlef\_R](https://www.ruby-forum.com/u/Detlef_R)\ **Replies:** 4\ **Last updated:** [January 29, 2014, 4:58pm UTC](https://www.ruby-forum.com/t/using-gets-sends-uknown-data/238800 "2014-01-29T16:58:03Z")
I can’t figure out where the input comes from in the following code: def check\_input puts “In which city do you stay?” STDOUT.flush city = gets.chomp puts "The city is " + city end When calling in a separate way (… --- ## [Ruby code to MS Exel 2013](https://www.ruby-forum.com/t/ruby-code-to-ms-exel-2013/238788)
**Author:** [@musicdenotation](https://www.ruby-forum.com/u/musicdenotation)\ **Replies:** 2\ **Last updated:** [January 29, 2014, 4:55pm UTC](https://www.ruby-forum.com/t/ruby-code-to-ms-exel-2013/238788 "2014-01-29T16:55:45Z")
I’ve no idea, so I do ask from my Ruby community. I have an array with more elements. Then I need to store these elements in Excel 2013. Say me the steps and requirements if any. --- ## [Re: NTSC Modulation?](https://www.ruby-forum.com/t/re-ntsc-modulation/238803)
**Author:** [@Detlef\_R](https://www.ruby-forum.com/u/Detlef_R)\ **Replies:** 0\ **Last updated:** [January 29, 2014, 4:40pm UTC](https://www.ruby-forum.com/t/re-ntsc-modulation/238803 "2014-01-29T16:40:02Z")
I believe Daniel G. implemented this successfully a while ago. Check http://www.danielgarcia.info/thesis/ for info. I tested it back in 2007 and it seemed to work, but only when my USRP1/TVRX was connected to cable T… --- ## [Confusion with Object#respond\_to?](https://www.ruby-forum.com/t/confusion-with-object-respond-to/238801)
**Author:** [@musicdenotation](https://www.ruby-forum.com/u/musicdenotation)\ **Replies:** 4\ **Last updated:** [January 29, 2014, 4:07pm UTC](https://www.ruby-forum.com/t/confusion-with-object-respond-to/238801 "2014-01-29T16:07:10Z")
Code : irb(main):001:0\> class Animal irb(main):002:1\> def bark;end irb(main):003:1\> end =\> nil irb(main):004:0\> class Object irb(main):005:1\> def foo;end irb(main):006:1\> end =\> nil irb(main):007:0\> Animal.r… --- ## [OFDM Packet lost](https://www.ruby-forum.com/t/ofdm-packet-lost/238798)
**Author:** [@Detlef\_R](https://www.ruby-forum.com/u/Detlef_R)\ **Replies:** 1\ **Last updated:** [January 29, 2014, 3:48pm UTC](https://www.ruby-forum.com/t/ofdm-packet-lost/238798 "2014-01-29T15:48:23Z")
Hi all, I am trying to create OFDM transmission on USRP 2. I am using two URSP’s (XVCR 2450) which are close to each other. To do that I am using Gnu radio 3.7.2 with slightly modify OFDM\_benchmark\_receiver (see img … --- ## [Instace\_methods](https://www.ruby-forum.com/t/instace-methods/238795)
**Author:** [@musicdenotation](https://www.ruby-forum.com/u/musicdenotation)\ **Replies:** 5\ **Last updated:** [January 29, 2014, 1:57pm UTC](https://www.ruby-forum.com/t/instace-methods/238795 "2014-01-29T13:57:39Z")
hi, class Raj def hi puts ‘hi’ end end If I write code "puts Raj.instance\_methods(false)"it prints the functions available in Raj class, so here output would be ‘hi’ My question is, consider the below code of min… --- ## [Fwd: Questions on rx\_ofdm example in GR 3.7.1](https://www.ruby-forum.com/t/fwd-questions-on-rx-ofdm-example-in-gr-3-7-1/246288)
**Author:** [@Rafa\_F](https://www.ruby-forum.com/u/Rafa_F)\ **Replies:** 22\ **Last updated:** [January 29, 2014, 1:00pm UTC](https://www.ruby-forum.com/t/fwd-questions-on-rx-ofdm-example-in-gr-3-7-1/246288 "2014-01-29T13:00:38Z")
Hi Tim. The solution I found was to set the Fixed Frame Length parameter to 1 on the OFDM Frame Equalizer block of the “Header Stream”. The original value for this field is set to 0, but I don’t exactly know why it … --- ## [Error at new rails app creation](https://www.ruby-forum.com/t/error-at-new-rails-app-creation/238794)
**Author:** [@Detlef\_R](https://www.ruby-forum.com/u/Detlef_R)\ **Replies:** 3\ **Last updated:** [January 29, 2014, 12:20pm UTC](https://www.ruby-forum.com/t/error-at-new-rails-app-creation/238794 "2014-01-29T12:20:45Z")
In cmd prompt, I just tried to new rails app using, ~/documents\>rails new app\_name It throws an error as, Gem::InstallError: The ‘json’ native gem requires installed build tools. --- ## [Setting PythonPath](https://www.ruby-forum.com/t/setting-pythonpath/245611)
**Author:** [@Sadaf\_N](https://www.ruby-forum.com/u/Sadaf_N)\ **Replies:** 4\ **Last updated:** [January 29, 2014, 11:25am UTC](https://www.ruby-forum.com/t/setting-pythonpath/245611 "2014-01-29T11:25:42Z")
Hello All, I have worked on setting the PythonPath for 3 weeks now. I have followed the steps in the following posting: http://gnuradio.org/redmine/projects/gnuradio/wiki/UbuntuInstall Here is my latest attempt of ed… --- ## [My rails app does not work](https://www.ruby-forum.com/t/my-rails-app-does-not-work/238758)
**Author:** [@Detlef\_R](https://www.ruby-forum.com/u/Detlef_R)\ **Replies:** 1\ **Last updated:** [January 29, 2014, 10:49am UTC](https://www.ruby-forum.com/t/my-rails-app-does-not-work/238758 "2014-01-29T10:49:51Z")
Hi, my app is not work. Can you help me? cannot load such file – bundler Application log: \[ pid=11873 thr=69923239138300 file=utils.rb:176 time=2014-01-27 20:00:04.706 \]: \*\*\* Exception LoadError in PhusionPassenger… --- ## [\[File.readable?\] How to make it work?](https://www.ruby-forum.com/t/file-readable-how-to-make-it-work/238777)
**Author:** [@musicdenotation](https://www.ruby-forum.com/u/musicdenotation)\ **Replies:** 6\ **Last updated:** [January 29, 2014, 9:13am UTC](https://www.ruby-forum.com/t/file-readable-how-to-make-it-work/238777 "2014-01-29T09:13:40Z")
I’m trying to make my own program that can help me manage my files/folders faster than Windows command prompt but I have ran across a problem. The problem is if a user tries to open a folder while the program is in “… --- ## [Strange behavior when class\_eval'ing a Class object](https://www.ruby-forum.com/t/strange-behavior-when-class-evaling-a-class-object/238787)
**Author:** [@Detlef\_R](https://www.ruby-forum.com/u/Detlef_R)\ **Replies:** 2\ **Last updated:** [January 29, 2014, 7:49am UTC](https://www.ruby-forum.com/t/strange-behavior-when-class-evaling-a-class-object/238787 "2014-01-29T07:49:14Z")
Just for the sake of learning more about the Ruby object model, I’ve been doing some experiments, and the following behavior surprised me: Let’s say we have a class Test: class Test;end Then, we class\_eval Test.class… --- ## [No \_dump\_data is defined for class Mysql2::Result](https://www.ruby-forum.com/t/no-dump-data-is-defined-for-class-mysql2-result/238701)
**Author:** [@musicdenotation](https://www.ruby-forum.com/u/musicdenotation)\ **Replies:** 4\ **Last updated:** [January 29, 2014, 6:17am UTC](https://www.ruby-forum.com/t/no-dump-data-is-defined-for-class-mysql2-result/238701 "2014-01-29T06:17:44Z")
Hi there, I’m Vignesh developer @ Rails application. I was now getting an issue while I’m migrating my existing application with rails ‘3.2.13’ into rails ‘4.1.beta1’ . This was my issue while i m signing in into my… --- ## [Strings#codepoints doesn't respect BOM on UTF-{16, 32} pseudo encodings](https://www.ruby-forum.com/t/strings-codepoints-doesnt-respect-bom-on-utf-16-32-pseudo-encodings/238786)
**Author:** [@Detlef\_R](https://www.ruby-forum.com/u/Detlef_R)\ **Replies:** 0\ **Last updated:** [January 29, 2014, 5:09am UTC](https://www.ruby-forum.com/t/strings-codepoints-doesnt-respect-bom-on-utf-16-32-pseudo-encodings/238786 "2014-01-29T05:09:40Z")
Issue #9415 has been updated by Usaku NAKAMURA. Backport changed from 1.9.3: UNKNOWN, 2.0.0: UNKNOWN, 2.1: REQUIRED to 1.9.3: REQUIRED, 2.0.0: REQUIRED, 2.1: REQUIRED Bug #9415: Strings#codepoints doesn’t respect BOM… --- ## [\[ruby-trunk - Bug #7825\]\[Assigned\] VM/envのマーク漏れによるSEGV](https://www.ruby-forum.com/t/ruby-trunk-bug-7825-assigned-vm-env-segv/229745)
**Author:** [@ktsj\_SKazuki\_Tsujim](https://www.ruby-forum.com/u/ktsj_SKazuki_Tsujim)\ **Replies:** 8\ **Last updated:** [January 29, 2014, 4:43am UTC](https://www.ruby-forum.com/t/ruby-trunk-bug-7825-assigned-vm-env-segv/229745 "2014-01-29T04:43:51Z")
Issue #7825 has been reported by ktsj (Kazuki Tsujimoto). Bug #7825: VM/envのマーク漏れによるSEGV Author: ktsj (Kazuki Tsujimoto) Status: Assigned Priority: High Assignee: mame (Yusuke E.) Category: core Target version: … --- ## [Script on hash sort - is it possible to optimize?](https://www.ruby-forum.com/t/script-on-hash-sort-is-it-possible-to-optimize/238720)
**Author:** [@Detlef\_R](https://www.ruby-forum.com/u/Detlef_R)\ **Replies:** 4\ **Last updated:** [January 29, 2014, 3:00am UTC](https://www.ruby-forum.com/t/script-on-hash-sort-is-it-possible-to-optimize/238720 "2014-01-29T03:00:44Z")
I wrote a ruby script hash sort related, but feel it’s not good, is it possible to optimize? ========================================== There is a string(“string\_sample”, every line end with “\\n”), I want the strings… --- ## [How to do string sort by number in specified lines?](https://www.ruby-forum.com/t/how-to-do-string-sort-by-number-in-specified-lines/238703)
**Author:** [@Detlef\_R](https://www.ruby-forum.com/u/Detlef_R)\ **Replies:** 6\ **Last updated:** [January 29, 2014, 2:51am UTC](https://www.ruby-forum.com/t/how-to-do-string-sort-by-number-in-specified-lines/238703 "2014-01-29T02:51:42Z")
========================================== There is a string(“string\_sample”, every line end with “\\n”), name1 bl460ca NoXDisplay (v2012.12) (server1/port1 18709), start Fri 1/24 17:26 name2 shandong NoXDisplay J3\_fff… --- ## [It's believed that SPDY is a huge DDoS vector by itself](https://www.ruby-forum.com/t/its-believed-that-spdy-is-a-huge-ddos-vector-by-itself/238775)
**Author:** [@musicdenotation](https://www.ruby-forum.com/u/musicdenotation)\ **Replies:** 4\ **Last updated:** [January 29, 2014, 1:47am UTC](https://www.ruby-forum.com/t/its-believed-that-spdy-is-a-huge-ddos-vector-by-itself/238775 "2014-01-29T01:47:19Z")
The subject is a quote of Maxim D. in a discussion found here: It would be nice to have a detailed list of SPDY functionality that could be used as a DDoS vector. And it would be even better, to have an nginx config… --- ## [Restarting a flow graph after termination by a head block?](https://www.ruby-forum.com/t/restarting-a-flow-graph-after-termination-by-a-head-block/238781)
**Author:** [@musicdenotation](https://www.ruby-forum.com/u/musicdenotation)\ **Replies:** 1\ **Last updated:** [January 29, 2014, 12:24am UTC](https://www.ruby-forum.com/t/restarting-a-flow-graph-after-termination-by-a-head-block/238781 "2014-01-29T00:24:04Z")
How can you restart a flow graph after a head block kills it? For example, I want to do something like the following: tb.start() tb.wait() # head block will terminate … do some reconfiguration … tb.start() However,… --- ## [PEM\_read\_bio\_X509 - Installing Cert](https://www.ruby-forum.com/t/pem-read-bio-x509-installing-cert/238783)
**Author:** [@musicdenotation](https://www.ruby-forum.com/u/musicdenotation)\ **Replies:** 2\ **Last updated:** [January 29, 2014, 12:19am UTC](https://www.ruby-forum.com/t/pem-read-bio-x509-installing-cert/238783 "2014-01-29T00:19:57Z")
I am running into a strange problem. If I cat domain.crt \>\> bundle.crt ssl\_certificate bundle.crt; ssl\_certificate\_key domain.key; and I try to start nginx I get the following error message. nginx: \[emerg\] PEM\_read\_… --- ## [What kind of server specs should we go for? Any way to determine that?](https://www.ruby-forum.com/t/what-kind-of-server-specs-should-we-go-for-any-way-to-determine-that/238780)
**Author:** [@Detlef\_R](https://www.ruby-forum.com/u/Detlef_R)\ **Replies:** 0\ **Last updated:** [January 28, 2014, 11:06pm UTC](https://www.ruby-forum.com/t/what-kind-of-server-specs-should-we-go-for-any-way-to-determine-that/238780 "2014-01-28T23:06:43Z")
We are building a Rails website that will launch soon. We are in the process of selecting a server. Right now, we are considering Digital Ocean as a hosting solution. But our concern is on the specs that the server sh… --- ## ["Hello, world!" from Lua file?](https://www.ruby-forum.com/t/hello-world-from-lua-file/238748)
**Author:** [@Detlef\_R](https://www.ruby-forum.com/u/Detlef_R)\ **Replies:** 6\ **Last updated:** [January 28, 2014, 9:19pm UTC](https://www.ruby-forum.com/t/hello-world-from-lua-file/238748 "2014-01-28T21:19:22Z")
Hello Now that I have a working Nginx with the ngx\_lua module, I’d like to start learning how to write web scripts. The following page doesn’t have a basic sample: So I used the following… … to edit nginx.conf an… --- ## [Change a block parameter using a python script](https://www.ruby-forum.com/t/change-a-block-parameter-using-a-python-script/238768)
**Author:** [@Detlef\_R](https://www.ruby-forum.com/u/Detlef_R)\ **Replies:** 2\ **Last updated:** [January 28, 2014, 7:23pm UTC](https://www.ruby-forum.com/t/change-a-block-parameter-using-a-python-script/238768 "2014-01-28T19:23:31Z")
Hi all! I have a simple flowgraph: a signal source, a throttle and a waterfall plot. I’d like to change the frequency of the signal source during runtime using the output of a python script. The output of the python … [Previous page](https://www.ruby-forum.com/latest.md?page=453) [Next page](https://www.ruby-forum.com/latest.md?page=455)