| T.R | Title | User | Personal
Name | Date | Lines |
|---|
| 1266.1 | | SA1794::TENEROWICZT | | Wed Nov 14 1990 13:09 | 13 |
| you could make yourself a chopper trainer!!
Mount four servos sideways on a piece of ply and suspend a second
piece of plywood app. 1' square above on four small pushrods.
Add a small lip to the edge of the 1' square and connect the four
servos to the RX. Two to ailerons and two to elevator. place a
ball bearing (ball) on the 1" table and you're off. The idea would
be to keep the ball centered by moving the controls. You could use
it at home with the antenna down. This shouldn't pose any problems
with your neighbors.
Tom
|
| 1266.2 | old wideband receiver application | GENRAL::KNOERLE | | Wed Nov 14 1990 14:04 | 14 |
| If you have a cirquit describtion of your receiver connect the
voltmeter to the output of the AGC cirquit of your HF signal path
and you'll get the (usually) inversed signal strength.
To use old receivers as a watchdog for your frequency build a small
speaker amplifier and connect it to the output of your LF cirquit
just before the Amplifier that goes into the demodulator of your
AM receiver. If you got a FM receiver connect it to the output of the
FM demodulator. You'll get an accoustical signal of what happens on
your frequency and (because wideband) besides.
Bernd
|
| 1266.3 | | WRASSE::FRIEDRICHS | winded in at ASH | Wed Nov 14 1990 15:19 | 15 |
| Gee, how hard would it be to make a sniffler-like device??
Or how about a ground based flight recorder?? It receives, decodes
and records all of the commands that you gave your plane. This
recording could then be down loaded to your favorite flight simulator
for a playback of your flight... It could also be analyzed by a
program to chart each control movement over time. We could show people
just how little they use the rudder!!
Gee, if I had one of these I could at least prove it was not pilot
error that led to the demise of the SS-40!
cheers,
jeff
|
| 1266.4 | What do you mean old wide band? | GENRAL::LUNT | Dave Lunt DTN 522-3527 | Fri Jan 11 1991 20:02 | 13 |
| Hoooold on there bob-a-louie! What do you mean 'old wide band' (72Mhz)?
I admit that its been a few years since I've been into RC...But my radio,
a Cannon 3 ch, 72.96Mhz (I think), still works fine. Whats up? Did the
bands change? I have noticed the RC cars (fancy dirt racers) I bought for
the boys were in the 50's and 27s (Mhz). The 27Mhz range I remember, but I
don't remember a band in the 50Mhz range.
The reason I ask is because I was planning to repair a .15 size trainer and
see if the boys liked flying. I would of course use my old radio.....so what's
up???
DAVE
|
| 1266.5 | you are an [unwiting] antique collector | ABACUS::RYDER | perpetually the bewildered beginner | Sat Jan 12 1991 07:21 | 16 |
| re Note 1266.4 by Dave Lunt -< What do you mean old wide band? >-
>> But my radio .... 72.96Mhz (I think), still works fine.
>> Did the bands change?
Yup. Please read 13.* and then 11.0, 11.1, and 2.* in about that order.
Welcome aboard; this file will help you re-enter the hobby. The file
itself should be thought of as a giant book with a superb index and a
poor table of contents. The [keyword] index is up-to-date, detailed,
and very helpful.
We suggest that you link up with a current RC'er for help in re-entry.
Note 4.* will point to several in Colorado Springs.
Alton Ryder, moderator and housekeeper
|
| 1266.6 | | ELMAGO::TTOMBAUGH | 20/20 Vision&walkin'round blind | Mon Jan 14 1991 09:49 | 8 |
| re .4
72.960 mhz (yellow/white) is one of the old freqs. specifically
not allowed for present airborne RC use. Sorry.
^^^
Terry
|
| 1266.7 | It's easy to find Rx audio | SNDPIT::SMITH | Smoking -> global warming! :+) | Mon Jan 14 1991 13:41 | 16 |
| Hi again, Kay!
To answer your question (at least about the FP-R017N FM reciever, which
I had apart over the weekend to get my RS-232 link working over it),
open the receiver, and run a wire from pin 9 of the FM IF chip (the one
closest to the antenna) to what would be the PWM pin of the "battery"
connector. Close it up and youhave access to the demodulated FM. Run
that thru a lowpass filter (8.2K ohms in series, .01 uF to ground) and
you have audio, which can be used to drive an amplifier and speaker.
If anyone is worried about opening the module, bring it by LTN1 and
I'll do it for free, it's only a couple minutes work. I also found the
8th channel in that receiver(!), but I don't know how to make the
transmitter send an 8th channel...
Willie
|