Hi Ben,
I use non-digipeater frequencies and so far no interference reported. I
have a couple questions about your set up for what sounds like an
outstanding flight (?black rock). If its ok, I'll communicate with you off
list.
Thanks,
Fred
On Wed, Oct 14, 2020 at 8:56 AM Ben Brockert <wikkit@xxxxxxxxx> wrote:
I launched a Byonics APRS transmitter to ~90km. It was picked up by
digipeaters in eight states. Be better than me: do a link budget to make
sure you’re not transmitting at higher power than needed. I didn’t get any
complaints but I could see it happening easily.
On Wednesday, October 14, 2020, Fred S <fredschaffermd@xxxxxxxxx> wrote:
Andre, Wyatt, Troy and Craig, I appreciate and thank you for the
recommendations and several of the suggestions (e.g. fingertech robotics
and the rotary switch) will be used in future builds. Currently, the
present AV-bay set up in part utilizes a slide switch to turn on/off 2
lipos that power a Byonics 2 watt GPS transmitter and a NMEA logging unit.
The current DPDT switch is OK but probably not robust enough for
significant vibration, I'd like to replace the current switch with a
similar sized one due to space limitations. Any further thoughts would be
much appreciated.
Thanks,
Fred
On Wed, Oct 14, 2020 at 12:31 AM Troy Prideaux <
troy@xxxxxxxxxxxxxxxxxxxxx> wrote:
There ya go, 1st I’ve heard of that process. Thanks for pointing that
out.
Cheers,
Troy
*From:* arocket-bounce@xxxxxxxxxxxxx [mailto:
arocket-bounce@xxxxxxxxxxxxx] *On Behalf Of *Craig Strudwicke
*Sent:* Wednesday, 14 October 2020 2:38 PM
*To:* arocket@xxxxxxxxxxxxx
*Subject:* [AR] Re: question about vibration resistent slide switches
Maybe they are alodined instead of anodised ie still electrically
conductive
https://www.besttechnologyinc.com/surface-finishing/what-is-alodine-chem-film-chromate-conversion-coating/
On Wed, Oct 14, 2020 at 11:09 AM Troy Prideaux <
troy@xxxxxxxxxxxxxxxxxxxxx> wrote:
Thanks for the link. I was looking very recently for something just like
this (compact high power switch) although I’m not convinced on the choice
of anodised al-alloy screw for the primary contact load carrier; although I
assume they’ve tested it.
Troy
*From:* arocket-bounce@xxxxxxxxxxxxx [mailto:
arocket-bounce@xxxxxxxxxxxxx] *On Behalf Of *André
*Sent:* Wednesday, 14 October 2020 8:26 AM
*To:* arocket@xxxxxxxxxxxxx
*Subject:* [AR] Re: question about vibration resistent slide switches
Hi Fred
If you don't absolutely need double pole, I've used switches like this
before:
https://www.fingertechrobotics.com/proddetail.php?prod=ft-mini-switch
They seem like they would be very vibration resistant. You could also
easily make your own that was effectively double pole, the poles just
wouldn't get switched at the same time.
Andre