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| From: | Mike Jameson |
| Subject: | [Discuss-gnuradio] Frequency Counter |
| Date: | Sat, 10 May 2014 19:14:30 +0100 |
Both ways it gives me those errors. It starts this way:
Loading: "/home/ubuntu/Desktop/scanoo.com_rx.grc"
Error: /home/ubuntu/Desktop/scanoo.com_rx.grc:31:40:FATAL:PARSER:ERR_ATTRIBUTE_WITHOUT_VALUE: Specification mandate value for attribute data-pjax-transient
/home/ubuntu/Desktop/scanoo.com_rx.grc:59:10:FATAL:PARSER:ERR_TAG_NAME_MISMATCH: Opening and ending tag mismatch: meta line 51 and head
/home/ubuntu/Desktop/scanoo.com_rx.grc:104:7:FATAL:PARSER:ERR_TAG_NAME_MISMATCH: Opening and ending tag mismatch: input line 96 and div
/home/ubuntu/Desktop/scanoo.com_rx.grc:139:8:FATAL:PARSER:ERR_TAG_NAME_MISMATCH: Opening and ending tag mismatch: input line 137 and form
/home/ubuntu/Desktop/scanoo.com_rx.grc:142:9:FATAL:PARSER:ERR_TAG_NAME_MISMATCH: Opening and ending tag mismatch: form line 92 and div
/home/ubuntu/Desktop/scanoo.com_rx.grc:148:30:FATAL:PARSER:ERR_ATTRIBUTE_WITHOUT_VALUE: Specification mandate value for attribute itemscope
/home/ubuntu/Desktop/scanoo.com_rx.grc:148:30:FATAL:PARSER:ERR_SPACE_REQUIRED: attributes construct error
/home/ubuntu/Desktop/scanoo.com_rx.grc:148:30:FATAL:PARSER:ERR_GT_REQUIRED: Couldn't find end of Start Tag div line 148
/home/ubuntu/Desktop/scanoo.com_rx.grc:184:21:FATAL:PARSER:ERR_ATTRIBUTE_WITHOUT_VALUE: Specification mandate value for attribute itemscope
/home/ubuntu/Desktop/scanoo.com_rx.grc:184:21:FATAL:PARSER:ERR_SPACE_REQUIRED: attributes construct error
/home/ubuntu/Desktop/scanoo.com_rx.grc:184:21:FATAL:PARSER:ERR_GT_REQUIRED: Couldn't find end of Start Tag h1 line 184
/home/ubuntu/Desktop/scanoo.com_rx.grc:195:14:FATAL:PARSER:ERR_TAG_NAME_MISMATCH: Opening and ending tag mismatch: div line 153 and h1
/home/ubuntu/Desktop/scanoo.com_rx.grc:270:9:FATAL:PARSER:ERR_TAG_NAME_MISMATCH: Opening and ending tag mismatch: input line 265 and div
/home/ubuntu/Desktop/scanoo.com_rx.grc:285:9:FATAL:PARSER:ERR_TAG_NAME_MISMATCH: Opening and ending tag mismatch: input line 280 and div
/home/ubuntu/Desktop/scanoo.com_rx.grc:312:41:FATAL:PARSER:ERR_ATTRIBUTE_WITHOUT_VALUE: Specification mandate value for attribute data-pjax-container
/home/ubuntu/Desktop/scanoo.com_rx.grc:321:17:FATAL:PARSER:ERR_ATTRIBUTE_WITHOUT_VALUE: Specification mandate value for attribute data-pjax
/home/ubuntu/Desktop/scanoo.com_rx.grc:321:17:FATAL:PARSER:ERR_SPACE_REQUIRED: attributes construct error
/home/ubuntu/Desktop/scanoo.com_rx.grc:321:17:FATAL:PARSER:ERR_GT_REQUIRED: Couldn't find end of Start Tag a line 321
…
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From: address@hidden [mailto:address@hidden] On Behalf Of Mike Jameson
Sent: Tuesday, May 06, 2014 11:45 PM
To: Dimitris Siafarikas
Subject: Re: Scanoo Issue
I've not seen that error before. Did you load 'gnuradio-companion' and then click open or attempt to run the grc file via the command line where it was mistakenly recognised as a bash script?
It works for me on Ubuntu 12.04 LTS x64 with GNU Radio installed via pybombs.
Mike
--
Mike Jameson M0MIK BSc MIET
Email: address@hidden
Web: http://scanoo.com
On Tue, May 6, 2014 at 7:04 PM, Dimitris Siafarikas <address@hidden> wrote:
Mile,
I tried to open your .grc file but upon doing so, I got that error:
/home/ubuntu/Desktop/scanoo.com_rx.grc:5693:64922:FATAL:PARSER:ERR_UNDECLARED_ENTITY: Entity 'nbsp' not defined
Do you know what causes the error?
I opened it with GNU Radio Live DVD with GNU Radio 3.7.3
From: address@hidden [mailto:address@hidden] On Behalf Of Mike Jameson
Sent: Tuesday, May 06, 2014 6:54 PM
To: Dimitris Siafarikas
Subject: Re: Scanoo Issue
Dimitris,
From memory the strongest signal is determined by looking at the maximum value of the vector probe result by using the max() function. In order to get the second strongest signal I'd sort the vector probe result into order of magnitude and then go down the list until the frequency is not in the passband of the strongest signal. Each bin is 500hz wide i think so that is why you will probably have the 1st, 2nd, 3rd and 4th place etc all being within the strongest signal's bandwidth and then you'll be able to find the second strongest signal in the first result which doesn't have a frequency within the strongest signal's bandwidth.
I was thinking of implementing this feature in a future release so for example the left speaker can be the strongest signal and the second strongest signal can be in the right speaker. The more speakers you have the more of a surround sound style radio listening experience one gets :)
Mike
--
Mike Jameson M0MIK BSc MIET
Email: address@hidden
Web: http://scanoo.com
On Tue, May 6, 2014 at 4:00 PM, Dimitris Siafarikas <address@hidden> wrote:
Hello Mike,
It seems that (as far I can see from the photos) that scanoo will do what I need, i.e find the strongest signal within the Rx bandwidth. But what happens if I want to lock and measure the frequency of the second strongest signal?
I attach a waterfall plot to consider. This comes from CW radar. This is the Rx signal I get when I have a moving target. So I would like to measure the exact frequency which is obviously different than zero.
Is there any option to do that?
Thank you in advance!
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