Powering a HackRF Portapack

Talk about other SDR products like the FunCube, HackRF, BladeRF etc.
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RChadwick
Posts: 7
Joined: Wed May 11, 2016 1:36 am

Powering a HackRF Portapack

Post by RChadwick » Sun Aug 04, 2019 4:45 pm

I'm looking to put in a Li-Ion battery into my Portapack. I'm going to need a DC-DC Boost regulator to get the +5V, which is going to be noisy. How big of a deal is it? I see a switcher on the HackRF schematic, so maybe not so bad? I could go nutty, and feed 6V into a 7805, or go extra nutty with 5.5V in to a low-noise LDO regulator. I'd prefer to just pop some ceramic caps on the boost regulator with the least ripple and be done with it.

Has anyone done experiments to see if 5V power quality had an impact or RF performance?

Thanks!

rtlsdrblog
Site Admin
Posts: 2410
Joined: Mon Nov 19, 2012 11:54 pm

Re: Powering a HackRF Portapack

Post by rtlsdrblog » Mon Aug 05, 2019 10:58 am

Recently seen this guy do it on Twitter https://twitter.com/jLynx_DarkN3ss.

A DCDC regulator might add some noise, but probably not too big of a deal on VHF and above.

RChadwick
Posts: 7
Joined: Wed May 11, 2016 1:36 am

Re: Powering a HackRF Portapack

Post by RChadwick » Tue Aug 06, 2019 4:03 am

Thanks for the response. I saw that link, but the person had sparse details about the DC-DC. I suppose I'll go with the best DC-DC I have. Thanks!

fei666888
Posts: 2
Joined: Sat Sep 07, 2019 2:49 pm

Re: Powering a HackRF Portapack

Post by fei666888 » Sat Sep 07, 2019 2:54 pm

Is this 666?
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RChadwick
Posts: 7
Joined: Wed May 11, 2016 1:36 am

Re: Powering a HackRF Portapack

Post by RChadwick » Sat Sep 07, 2019 8:13 pm

That looks awesome! I pretty much just finished my version of this, with using the reset button to start up and shut down. Where is this version available? Is that a bigger display?

fei666888
Posts: 2
Joined: Sat Sep 07, 2019 2:49 pm

Re: Powering a HackRF Portapack

Post by fei666888 » Wed Oct 16, 2019 2:13 pm

RChadwick wrote:
Sat Sep 07, 2019 8:13 pm
That looks awesome! I pretty much just finished my version of this, with using the reset button to start up and shut down. Where is this version available? Is that a bigger display?
you can find the 3.2 inch portapack in "aliexpress" use portapach 3.2 key words to search.

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