Re: RD16HHF1 in the uBITX
#ubitx
Oh, just bite the bullet and go QR-Oh-Oh-Oh!! HiHi
https://www.rfparts.com/blf188xr-amp.html
73, David KB4FXC
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David McGough
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#41211
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Re: RD16HHF1 in the uBITX
#ubitx
I got mine from RF Parts in 2 days around $5 each.
I also got some of the RD16HVF1's (good through 2M) as well. They were
only a tiny bit more than the 30MHz HF parts (less than $6 as I recall).
I
By
Dave Bottom <ars.kd6az@...>
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#41210
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Re: RD16HHF1 in the uBITX
#ubitx
NO cheap, but what about: https://www.minikits.com.au/eme210.htm
Like this:
73, Nick, VK4PLN
By
Nick VK4PP
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#41209
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Re: #ubitx-help Strong Audio Tones in and outside audio receive passband
#ubitx-help
Genuine Nano with Quartz Crystals. Replacing the Nano to remedy high
frequency audio tone.
The official Arduino site says they are out of stock, however I found that
the RobotDyn Nano ATmega328
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Dave Bottom <ars.kd6az@...>
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#41208
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Re: uBITX woes, feeling disheartened.
#ubitx
Bill
Glad my own uBITX work could be of value to someone else.
Arv_-_
Sent from my Verizon, Samsung Galaxy smartphone
By
Arv Evans
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#41207
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Re: uBITX woes, feeling disheartened.
#ubitx
Arv,
I am glad you went to the trouble to post this. I have been puzzling how to do this myself because the switch connection did not make sense to me. Your sketches reflect the way I thought I
By
William Londree <ventura_bill@...>
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#41206
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Re: RD16HHF1 in the uBITX
#ubitx
That is where I placed my second order. The other place was closer and I
should have had them in a couple of days... oh well.
Marco - KG5PRT
By
M Garza <mgarza896@...>
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#41205
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Re: RD16HHF1 in the uBITX
#ubitx
the Parts Place is a good place to get some. But they are now on back-order.
Also, it is noted that the prices have increased (~$US5.00 for RD16HHF1).
It looks like the market is catching up with
By
John Backo
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#41204
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Re: RD16HHF1 in the uBITX
#ubitx
I am still waiting for mine. Second order, last oder sat for over a week
until I asked about them and was told they were out of stock...
So much for customer service.
Marco - KG5PRT
By
M Garza <mgarza896@...>
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#41203
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Re: RD16HHF1 in the uBITX
#ubitx
PA1FOX has done this, but I don't think he has
posted detailed results yet. (He has promised
to do so).
I have some, but have not gotten around to finding out what
they do. It looks very good,
By
John Backo
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#41202
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Re: BITX QSO Afternoon/Night, Sunday, February 4, 3PM/7PM Local Time, 7277 kHz in North America, 7177 kHz elsewhere
so looks like this afternoon was a bust, is there anybody going to stick around tonight 7pm / 0000Z ? There is a pile of AM broadcasters coming in up here tonight, playing around under 200 right now.
By
Tom VE3THR
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#41201
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Re: #ubitx-help Strong Audio Tones in and outside audio receive passband
#ubitx-help
Jerry is right.
This is a rather rare effect involving only a few nanos.
The use of a ceramic resonator would surely contribute to
the problem. The best solution is to replace the nano (maybe with a
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John Backo
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#41200
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RD16HHF1 in the uBITX
#ubitx
HI Group.
I have been searching and reading topics with regards to using the *RD16HHF1* in the uBITX *.
* So far I have only been able to find suggesstions, but no actual implementations...
*
* I was
By
Nick VK4PP
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#41199
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Re: uBITX woes, feeling disheartened.
#ubitx
If you look at the schematic you can see that D7 is directly across the
windings of relay K1. The cathode
end is connected directly to +12V. The other end is connected to the
collector of Q15. If
By
Arv Evans
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#41198
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Anyone (US Only for now) need a uBITX Raduino repaired?
#ubitx
This is only for uBITX owners in the US right now as I don't want to get into the hassle of International shipping of repaired equipment as I am not sure how foreign customs handles repaired stuff
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Jim Sheldon
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#41197
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Re: uBITX woes, feeling disheartened.
#ubitx
hello ok when I push PPT the rec will drop out and TX will show up on screen. I hear a relay clicking when I release the PPT it will go back in rec. I can't tell which relay is clicking.MY watt/swr
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rlawson695@...
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#41196
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Re: I did it again.. i plugged the arduino pins on reverse
ok here is the entire problem.??
?When I press PPT hear click from relay.don't know which one. receive stops and TX comes up on screen. when I release PPT it goes back into recevive. My watt/swr
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rlawson695@...
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#41195
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Re: ubitx receive audio troubleshooting
If using an external speaker, make sure it has a stereo plug (not a mono one).
I mistakenly plugged a mono plug external speaker in and it squealed.
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Nigel G4ZAL <nigel@...>
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#41194
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Re: ubitx receive audio troubleshooting
Craig,
Just to eliminate audio vibration feedback (microphonics), disconnect an internal speaker and try and external one a short distance away from the circuit board and mic. 73 Mike KF6KXG
By
Mike Lichtman <tchrme@...>
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#41193
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Re: Higher voltage for Bitx40 Final
11.5v should be fine, make sure it is still 11.5 when PTT is pressed.
Quiescent IRF510 drain current changing somewhat as they get warm is normal
The drop from 6w to 4w when V+ to the IRF510's is
By
Jerry Gaffke
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#41192
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