[App_rpt-users] Hamtronics receiver issue with AllStar RTCM

[Skyler F]

Hi Bryan, can you send me the exact wiring between your hamtronics and your
RTCM? What value DC blocking capacitor, any jumpers in the RTCM selected
etc...?

73,
Skyler

On Sun, Mar 27, 2016 at 5:08 PM, Bryan Fields <Bryan at bryanfields.net> wrote:

> On 3/27/16 5:12 PM, Skyler F wrote:
> > For a voter project, we got the hamtronics VHF receiver pretuned to the
> > repeaters input frequency. The idea is to use hamtronics receivers for
> > every voted receive site for equivalent audio characteristics.
>
> > So... I hooked a cheap sound card up to audacity, and took a look at the
> > spectrum of each receiver. The hamtronics obviously looks like it lacks
> > high frequency noise on the discriminator output.
>
> > Does anybody else have experience with hamtronics receivers?
>
> Yes, I have a number of them in place and find they work perfectly with the
> RTCM.  It can give about 2v P-P on the discriminator pin, and has the high
> frequency compute the RTCM squelch needs.
>
> My prime setup is here:
> http://gallery.keekles.org/d/28384-2/0330141929a.jpg
>
> Note you'll want to put a cap in line, as the discriminator is DC coupled
> in
> the hamtronics.  Can you put a scope on the discriminator line and measure
> the
> voltage?  You might have a problem with the receiver.
>
> 73's
> --
> Bryan Fields
>
> 727-409-1194 - Voice
> 727-214-2508 - Fax
> http://bryanfields.net
> _______________________________________________
> App_rpt-users mailing list
> App_rpt-users at ohnosec.org
> http://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users
>
> To unsubscribe from this list please visit
> http://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users and scroll down
> to the bottom of the page. Enter your email address and press the
> "Unsubscribe or edit options button"
> You do not need a password to unsubscribe, you can do it via email
> confirmation. If you have trouble unsubscribing, please send a message to
> the list detailing the problem.
>



-- 
Skyler Fennell
amsatnet.info
KDØWHB
electricity440 at gmail.com
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.keekles.org/pipermail/app_rpt-users/attachments/20160327/08b9c4d7/attachment.html>