It doesn't speak in cardinal directions, but you can make a meter face read
in "degrees"
Since the rotor has a pot in it of some value, (it doesn't really matter
what that value is, as long as it is LINEAR and doesn't draw more than 25mA
from a 5v source - more than 200 ohms - see below) simply:
1. tie one end of the pot to ground
2. tie the other end of the pot to the +5v pin (pin 21) on the RC-210
accessory jack.
(Make sure that the pot is not going to pull more than 25mA as specified
in the manual!)
3. Hook the wiper of the pot to an analog input. (Pins 1-8)
4. Program a meter face as follows: (assuming your using ADC channel 5)
--- Ideal Meter Face Programming ---
*2064 5# 4# 0# 0# 500# 36000#
This programs meter 5 to read in degrees with 0v=0degrees and 5v=360
degrees.
The above, however is not allowed since the max value of a meter face
reading is 327. So one must make a translation table. As I see it, there
are 3 reasonable options.
1.Use 16 possible degrees for a readback value: 0=N, 1=NNE,2=NE,3=ENE,
4=E, 5=ESE, .... Etc. so a degree of 1 would equal NNE and a degree
reading of 4 would be E, with decimal values being somewhere in between
them. I.E. 1.5 being half way between NNE and NE.
2. Use 100 possible degrees for a readback value: 0=N, 25=E, 50=S, etc.
so a degree reading of 12.5 would be NE
Both of the above would require thought and probably a conversion chart
to help out.
3. Use 36 possible degrees for a readback number. 0=N, 90=E, 18=S, etc.
then you simply multiply the read back number by 10 to tell you the bam
heading in actual degrees clockwise from north.
5. Program a message macro to speak "Remote base point -s at"
6. Program a command macro to send the above programmed message macro
followed by command #091 - read ADC channel 5.
If all is well, you should hear "Remote Base Points at 35.4 degrees."
Ken may have some input on this as well, but I think the above would work
very well as an indicator. As always, YMMV
Scott
Scott Zimmerman
Amateur Radio Call N3XCC
612 Barnett Rd
Boswell, PA 15531
----- Original Message -----
From: "Steaven Rogers, W4YI" <[EMAIL PROTECTED]>
To: <[email protected]>
Sent: Friday, April 20, 2007 11:38 AM
Subject: Re: [Repeater-Builder] Remote Base Antenna
> Jay Urish wrote:
>> Do what?
>> Cant you program a meter face based on voltage?
>>
>> Does'nt the rotor controller display work on voltage?
>>
>>
> I may not be conveying my thoughts correctly on this one. You can
> program the meter face based on voltage. However, getting the controller
> to perform the desired function such as speak a word/phrase relating to
> antenna direction is not available. That I can see anyway.
>
> Steaven, W4YI
