[Hackrf-dev] Is my new (old) HackRF Deaf?

[Cinaed Simson]

On 07/10/2017 09:48 PM, Andrew Rich wrote:
> With my hack rf I have three sliders
> 
> Rf gain

The RF gain should be set to 0 while receiving to avoid smoking your RF
amplifer.

> Lna gain

IF gain - recommend starting point is 24.

> VGA gain

BB gain - eommaned starting point is 30.

Typically increased gain implies increased noise.

-- Cinaed

> 
> If you set one of these to like a 1 it goes deaf
> 
> It varies between programs too
> 
> Some have base band gain 
> 
> I can make mine deaf 
> 
> Sent from my iPhone
> 
> On 11 Jul 2017, at 2:36 pm, Jerry <jsternmd at att.net
> <mailto:jsternmd at att.net>> wrote:
> 
>> Yes it does.  I have it working on GNU radio companion.  Tonight I
>> found one station… with or without  averaging set and using the
>> default flowchart in Mike’s website tutorial – background is about -80
>> dB and I can finally see and see some FM signals.  With 10MHz span
>> (95-105 MHz) I see a wide broad signal extending from about 98.5 to
>> 101.5 MHz with some signal spikes riding on top to about -55dB.
>>
>>  
>>
>> Jerry
>>
>>  
>>
>> *From:* vk4tec at tech-software.net <mailto:vk4tec at tech-software.net>
>> [mailto:vk4tec at tech-software.net]
>> *Sent:* Monday, July 10, 2017 7:01 PM
>> *To:* 'Jerry Stern' <jsternmd at att.net <mailto:jsternmd at att.net>>;
>> hackrf-dev at greatscottgadgets.com <mailto:hackrf-dev at greatscottgadgets.com>
>> *Subject:* RE: [Hackrf-dev] Is my new (old) HackRF Deaf?
>>
>>  
>>
>> Does SDR# find and run the hack RF ?
>>
>>  
>>
>> *From:* HackRF-dev [mailto:hackrf-dev-bounces at greatscottgadgets.com]
>> *On Behalf Of *Jerry Stern
>> *Sent:* Tuesday, 11 July 2017 6:54 AM
>> *To:* hackrf-dev at greatscottgadgets.com
>> <mailto:hackrf-dev at greatscottgadgets.com>
>> *Subject:* [Hackrf-dev] Is my new (old) HackRF Deaf?
>>
>>  
>>
>> Is my HackRF deaf?  I am a ham radio hobbyist and I bought a HackRF
>> One to enhance my deeper learning of SDR but also as a broadband RF
>> source.  To my dismay, installing the software has become days of
>> learning Ubuntu basics and dealing with instructions that are at times
>> outdated or nuanced towards a person with much more than basic Linux
>> skills.  So, I gave up on Ubuntu only because it was faster for me to
>> install and test with Windows 7.   My HackRF One (GreatScott) must
>> have been a leftover as the firmware was dated 2014(August).  I
>> installed the latest version HackRF tools and updated the firmware to
>> Feb 2017.  I followed Mike's video tutorial for creating a basic GNU
>> flow for FM and also installed SDR#.  I have very strong FM broadcast
>> stations in my area which I can easily demodulate with my Rigol
>> Spectrum analyzer using the ANT500. However both with GNU and SDR# my
>> HackRF appears deaf in FM broadcast mode.  I read that a few years
>> back there may have been some issues with cold solder joints on the
>> HackRF pcb....  I have a lot of test equipment - from RF generators up
>> to 2 GHz, etc but before I go that route is there something I am
>> perhaps missing in my setup.  Not sure where or what details to
>> provide here without overloading my question further
>>
>>  
>>
>> Thanks
>>
>>  
>>
>> Jerry
>>
>>  
>>
>>
>> Sent from my iPhone
>>
> 
> 
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