[arm-allstar] HobbyPCB RS-UV3

[Stephen - K1LNX]

Good info Doug, I have a couple of them that I spent a ton of money on with
this same idea in mind, but never got around to working on it :(

One other more minor thing is there is a battery charger chip on the board
> that apparently has a high failure rate. Like 20% or something like that
> confirmed by Hobbypcb. Apparently there was a bad run of the chips. Mine
> failed right out of the box and I had to cut it out of the circuit. It was
> not a big deal to me as I would never have used it. This is probably under
> control now depending on how many potentially bad ones he has on the shelf.


I was part of the 20%, I had it burn up on me. I would have never used it
either, but was a little concerned when I smelled something burning and
that was the end result.  In fairness, I can't remember if I accidentally
overvolted it though, so that may have been part of the cause.

Stephen
K1LNX

On Tue, Jun 13, 2017 at 10:48 AM, "Doug Crompton via arm-allstar" <
arm-allstar at hamvoip.org> wrote:

> Be cautious. I have one and I have been using it for almost a year. I had
> planned to do a howto on it but ran into problems. In theory it is a nice
> board. It uses a Baofeng tri-band chip, the one used in many Baofeng
> transceivers. To make it really clean it has added switched filters on the
> front-end. RF wise it seems OK, very clean. I primarily use mine on 222 Mhz
> as a local node.
>
> But here is the problem. The PL does not work well. I went around and
> around with hobbypcb about this. I got several firmware updates which put a
> band-aid on the problem but never fixed it. It had talk off issues on PL. I
> kind of figured it was in narrow mode but it was latter confirmed that it
> was not. I currently use mine in squelch only mode locally with the squelch
> set high to avoid noise keyups. You really need reliable PL or DCS on an
> Allstar node. I forget if I tried DCS but I am thinking I did and it too
> was not working correctly.
>
> This falls under the category of the seller says they are being used all
> over successfully as Allstar,
> IRLP, Echolink nodes but I don't buy it. I spend a lot of time on this
> board and never got it the way I wanted it. I was very disappointed as it
> would have made a great programmable node where you could easily set the
> band, frequency, PL etc. via Allstar. The programming works fine.
>
> Maybe I got bad hardware but I find that unlikely. I have had several
> others with boards confirm my findings.
>
> I suppose you could use it with an external PL board or with usbradio if
> that worked better. I have tried neither.
>
> One other more minor thing is there is a battery charger chip on the board
> that apparently has a high failure rate. Like 20% or something like that
> confirmed by Hobbypcb. Apparently there was a bad run of the chips. Mine
> failed right out of the box and I had to cut it out of the circuit. It was
> not a big deal to me as I would never have used it. This is probably under
> control now depending on how many potentially bad ones he has on the shelf.
>
>
> *73 Doug*
>
> *WA3DSP*
>
> *http://www.crompton.com/hamradio <http://www.crompton.com/hamradio>*
>
>
>
> On Tue, Jun 13, 2017 at 8:51 AM, "Jeremy Utley via arm-allstar" <
> arm-allstar at hamvoip.org> wrote:
>
> > Hey all!  Has anyone tried to use the HobbyPCB RS-UV3 shield as a node
> > tranciever yet?  I just found this, and it looks intriguing.  Thinking
> > about
> > getting one for myself for a possible micro-node build.
> >
> >
> >
> > Jeremy, NQ0M
> >
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