Re: Hamstick Mag Mount
For portable use I have used a clamp-on mount (also sold to make a hamstick dipole) attached to a metal stake. Sticking that into the ground made a usable antenna. In cases where I didn't think I had
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Vic WA4THR
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#77663
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Hamstick Mag Mount
Hello, I¡¯m curious what I would need to do to use a mobile mag mount for an HF whip without mounting it to a car. I¡¯m guessing I need to get a large sheet of metal to act as a ground plain.
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Christopher Miller
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#77662
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Re: Nominal power supply voltage
Thanks, I was lucky enough to be given a complete transceiver I don¡¯t want to mess with cutting traces and modifying it until I have everything set up. I just wanted to make sure I didn¡¯t need to
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Christopher Miller
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#77661
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Re: Nominal power supply voltage
In the v3 the audio output chip is at its limit with 12 volts,the PA can be run from say 15. or a bit more for increased rf output Get Outlook for Android<https://aka.ms/ghei36>
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Ian Reeve <ian.radioworkshop@...>
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#77660
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Re: Nominal power supply voltage
Sorry. I sm withdrawing my statement. V3, the TDA2822 WILL LIKELY GET DAMAGED AT HIGHER VOLTAGE. LIMIT TO 12. After all you can reduce 13.8 to 12 by some pot on the psu.
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MVS Sarma
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#77659
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Re: Nominal power supply voltage
I use 12 volts but a higher voltage can be delivered to just the PA feed to boost the rf output. Get Outlook for Android<https://aka.ms/ghei36> ________________________________ Sent: Friday, April 3,
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Ian Reeve <ian.radioworkshop@...>
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#77658
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Re: Nominal power supply voltage
You can use q3.8. Pl dont again say + /- All the best. wrote:
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MVS Sarma
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#77657
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Nominal power supply voltage
Hello, I am currently feeding 12 volts in to my v3 uBitx. I was wondering if I should be using 13.8 volts. Will that blow up the 5 volt regulator? Thanks, Chris KF4FTR
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Christopher Miller
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#77656
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Re: #v6 need a 12v connectiion
#v6
One amp is not enough, you need a 3 amp supply to give a little head room.
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howard winwood G4GPF <winwoodh@...>
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#77655
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Re: #v6 need a 12v connectiion
#v6
Once you get your antenna figured out, you will want a bigger power supply. The sag would be significant. As would be the electric noise. -- 73 Dave ADOB ( https://www.qrz.com/db/AD0B ) Raduino
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_Dave_ AD0B
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#77654
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Re: uBitx v.4 build information
Curt, I wasn't arguing against your advice.? I merely stated what Allison said worked well for her.? She made other modifications too, but the order is not always clear in the older posts.? In any
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Mark - N7EKU <n7eku@...>
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#77653
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Re: uBitx v.4 build information
Mark perhaps she made other adjustments, as mine improved greatly with just a few hundred pF added at C81.? please see Asshar's post about C81, I think my adjustment is consistent with what he was
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Curt
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#77652
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Re: uBitx v.4 build information
Hi Vic, Adding 0.1uF will result in basically no frequency compensation for Q90.? Looking at past posts, Allison ended up with a total of 1100pF for C81. 73, Mark
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Mark - N7EKU <n7eku@...>
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#77651
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Re: #v6 need a 12v connectiion
#v6
I just finished constructing my full kit uBitx v6 and powered it up with a 12v- 1amp wall wart. When I connected to my Mag Loop antenna, I did not receive voice nor CW. However, all the icons on the
By
Larry Mittman
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#77650
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Re: uBitx v.4 build information
Boa noite, grupo. Tenho um uBITX V4, e queimaram as suas sa¨ªda IRF510, n?o tenhos IRF510 de reserva, mas tenho no estoque dois RD16HHF1, posso trocar por IRF510, quais as provid¨ºncias neste caso?
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Rubens Kamimura
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#77649
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Sasquatch Stomp is Tomorrow, Friday 3 April
Hello All, Just a reminder, the annual Sasquatch Stomp is tomorrow, Friday 3 April. Check out the details here: https://sites.google.com/site/pnwqrpgroup/sasquatch-stomp This is a fun event that
By
nb6m@...
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#77648
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Re: uBitx v.4 build information
I see the website where I had posted that list of mods and links is down. here it is as a document. =Vic=
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Vic WA4THR
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#77647
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Re: #v6 need a 12v connectiion
#v6
Hi Ralph a meter could tell you what you want to know about your power source. Definitely test the fan running off your radio power supply for electric noise. The worst offender I had was a small
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_Dave_ AD0B
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#77646
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Re: #v6 need a 12v connectiion
#v6
Ralph, I used P1 (which is a 12 v supply) to run my cooling fan. The middle pin is V+, the pin closest to the edge of the board is ground. Not sure what the other pin is for but I didn¡¯t need it for
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Mick
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#77645
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Re: Gordon Gibby digi interface with V2.2 board
thank you, I had no idea what he was asking for -- the gentleman might not have found this *free text *on our web page -- https://qsl.net/nf4rc/2019/SmallBoxSoundCardInterfaceManual2.2.pdf that's one
By
Gordon Gibby KX4Z
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#77644
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