[OZAPRS] FW: Homebrew HF APRS transmitter
Damien Gardner Jnr
vk2tdg at gmail.com
Sat Jul 9 07:49:28 EST 2011
I can remember back to a day when I was still at uni, when my speedo died.. and instead of spending the money on a new speedo, I just marked off speeds in cencentric rings around my tacho, for each of the four gears :) I seem to remember being pulled over for a breatho at one stage, and the copper noticing and asking about it... And then spending 10 minutes extolling the virtues of a tacho vs a speedo, and how the tacho *has* to be more accurate, as it's a direct electrical drive from the distributor (and calibrated using a frequency counter), compared to the cable driving a revolving magnet, acting on a spring-loaded needle... He walked away very confused :-p
--DG
On 08/07/2011, at 11:32 AM, Nic McLean wrote:
> 3.375 degrees or 3 degrees 22 minutes and 30 seconds!
>
>
> In fact, your assessment for today is to recalibrate a 270 degree, 80 mph
> speedometer with 1mph divisions, into furlongs per fortnight(fpf). Use a
> suitable scale and mark the speed limits at 30mph and 50 mph. what is the
> subtended angle between each scale division?
>
>
> 73 de Norm, VK3XCI
> Mildura, Australia
> The Wintersun City
> QF15bt.
>
>
>
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