LimeSDR-Mini TX Gain Power - Revision history

Sniporbob: /* Test Setup */

2019-10-29T23:11:21Z

Test Setup

← Older revision		Revision as of 00:11, 30 October 2019
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	== Test Setup ==		== Test Setup ==
	A Raspberry Pi 3 running Arch Linux was used, with the LimeSDR-Mini receiving power separately from a powered USB hub. The LimeSDR-Mini Tx port was hooked up via 6 inch SMA cable to a SMA/UHF adapter, and the SMA/UHF adapter was directly hooked to a UHF/Type N adapter. The UHF/Type N adapter was plugged into an Agilent CXA N9000A Signal Analyzer. The GNU Radio flowgraph was set up to have the LimeSDR-Mini transmit a 600Hz sine wave at ~~each~~ frequency and gain combination.		A Raspberry Pi 3 running Arch Linux was used, with the LimeSDR-Mini receiving power separately from a powered USB hub. The LimeSDR-Mini Tx port was hooked up via 6 inch SMA cable to a SMA/UHF adapter, and the SMA/UHF adapter was directly hooked to a UHF/Type N adapter. The UHF/Type N adapter was plugged into an Agilent CXA N9000A Signal Analyzer. The GNU Radio flowgraph was set up to have the LimeSDR-Mini transmit a 600Hz sine wave at the specific frequency and gain combination being tested.

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Sniporbob: /* Charts and Graphs */

2019-10-29T23:03:43Z

Charts and Graphs

← Older revision		Revision as of 00:03, 30 October 2019
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	== Charts and Graphs ==		== Charts and Graphs ==
	Data was recorded from 50MHz to 950MHz for each 50MHz increment, and ~~an additional~~ less precise measurement was made at 30MHz. Gain values were tested from 60 (the maximum allowed) down to 22. With the exception of 30MHz, the dBm output was recorded to 0.1dBm, and for each measurement an effort was made to observe the slight variations in power and select the nearest 0.1dBm increment closest to the center of the fluctuation. 30MHz was recorded to the nearest 1dBm.		Data was recorded from 50MHz to 950MHz for each 50MHz increment, and a less precise measurement was made at 30MHz. Gain values were tested from 60 (the maximum allowed) down to 22. With the exception of 30MHz, the dBm output was recorded to 0.1dBm, and for each measurement an effort was made to observe the slight variations in power and select the nearest 0.1dBm increment closest to the center of the fluctuation. 30MHz was recorded to the nearest 1dBm.

	[[File:LimeSDR-Mini_GNU_Radio_Tx_Power,_dBm_v_MHz.png]]		[[File:LimeSDR-Mini_GNU_Radio_Tx_Power,_dBm_v_MHz.png]]
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	[[File:LimeSDR-Mini_GNU_Radio_Tx_Power_Data.png]]		[[File:LimeSDR-Mini_GNU_Radio_Tx_Power_Data.png]]



	== Test Setup ==		== Test Setup ==

Sniporbob at 23:02, 29 October 2019

2019-10-29T23:02:55Z

← Older revision		Revision as of 00:02, 30 October 2019
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	GNU Radio and the LimeSDR Sink block of gr-limesdr were used to generate the following data. An attempt was made to determine output power of the LimeSDR-Mini across various settings for Tx Gain in GNU Radio. The following graphs show the results. It is worthwhile to note that, due to time constraints, the data recorded for 30MHz is less precise than for the other frequencies.		GNU Radio 3.8 and the LimeSDR Sink block of gr-limesdr were used to generate the following data. An attempt was made to determine output power of the LimeSDR-Mini across various settings for Tx Gain in GNU Radio. The following graphs show the results. It is worthwhile to note that, due to time constraints, the data recorded for 30MHz is less precise than for the other frequencies.


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	== Test Setup ==		== Test Setup ==
	The LimeSDR-Mini Tx port was hooked up via 6 inch SMA cable to a SMA/UHF adapter, and the SMA/UHF adapter was directly hooked to a UHF/Type N adapter. The UHF/Type N adapter was plugged into an Agilent CXA N9000A Signal Analyzer. The GNU Radio flowgraph was set up to have the LimeSDR-Mini transmit a 600Hz sine wave at ~~the specified~~ frequency.		A Raspberry Pi 3 running Arch Linux was used, with the LimeSDR-Mini receiving power separately from a powered USB hub. The LimeSDR-Mini Tx port was hooked up via 6 inch SMA cable to a SMA/UHF adapter, and the SMA/UHF adapter was directly hooked to a UHF/Type N adapter. The UHF/Type N adapter was plugged into an Agilent CXA N9000A Signal Analyzer. The GNU Radio flowgraph was set up to have the LimeSDR-Mini transmit a 600Hz sine wave at each frequency and gain combination.

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Sniporbob at 22:53, 29 October 2019

2019-10-29T22:53:08Z

← Older revision		Revision as of 23:53, 29 October 2019
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	GNU Radio and the LimeSDR Sink block of gr-limesdr were used to ~~acquire~~ the following data. An attempt was made to determine output power of the LimeSDR-Mini across various settings for Tx Gain in GNU Radio. The following graphs show the results. It is worthwhile to note that, due to time constraints, the data recorded for 30MHz is less precise than for the other frequencies.		GNU Radio and the LimeSDR Sink block of gr-limesdr were used to generate the following data. An attempt was made to determine output power of the LimeSDR-Mini across various settings for Tx Gain in GNU Radio. The following graphs show the results. It is worthwhile to note that, due to time constraints, the data recorded for 30MHz is less precise than for the other frequencies.


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	== Test Setup ==		== Test Setup ==
	The LimeSDR-Mini Tx port was hooked up via 6 inch SMA cable to a SMA/UHF adapter, and the SMA/UHF adapter was directly hooked to a UHF/Type N adapter. The UHF/Type N adapter was plugged into an Agilent CXA N9000A Signal Analyzer. The GNU Radio flowgraph was set up to have the LimeSDR-Mini transmit a 600Hz sine wave at the specified frequency.		The LimeSDR-Mini Tx port was hooked up via 6 inch SMA cable to a SMA/UHF adapter, and the SMA/UHF adapter was directly hooked to a UHF/Type N adapter. The UHF/Type N adapter was plugged into an Agilent CXA N9000A Signal Analyzer. The GNU Radio flowgraph was set up to have the LimeSDR-Mini transmit a 600Hz sine wave at the specified frequency.

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Sniporbob at 22:51, 29 October 2019

2019-10-29T22:51:30Z

← Older revision		Revision as of 23:51, 29 October 2019
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	~~''This page~~ is a ~~stub''~~		GNU Radio and the LimeSDR Sink block of gr-limesdr were used to acquire the following data. An attempt was made to determine output power of the LimeSDR-Mini across various settings for Tx Gain in GNU Radio. The following graphs show the results. It is worthwhile to note that, due to time constraints, the data recorded for 30MHz is less precise than for the other frequencies.


			== Charts and Graphs ==
			Data was recorded from 50MHz to 950MHz for each 50MHz increment, and an additional less precise measurement was made at 30MHz. Gain values were tested from 60 (the maximum allowed) down to 22. With the exception of 30MHz, the dBm output was recorded to 0.1dBm, and for each measurement an effort was made to observe the slight variations in power and select the nearest 0.1dBm increment closest to the center of the fluctuation. 30MHz was recorded to the nearest 1dBm.

			[[File:LimeSDR-Mini_GNU_Radio_Tx_Power,_dBm_v_MHz.png]]


			[[File:LimeSDR-Mini_GNU_Radio_Tx_Power,_Gain_v_dBm.png]]


			[[File:LimeSDR-Mini_GNU_Radio_Tx_Power_Data.png]]



			== Test Setup ==
			The LimeSDR-Mini Tx port was hooked up via 6 inch SMA cable to a SMA/UHF adapter, and the SMA/UHF adapter was directly hooked to a UHF/Type N adapter. The UHF/Type N adapter was plugged into an Agilent CXA N9000A Signal Analyzer. The GNU Radio flowgraph was set up to have the LimeSDR-Mini transmit a 600Hz sine wave at the specified frequency.

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2019-10-29T20:27:34Z

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