the receiving end of splatter.
This is mostly just that .splatter, not RF but
conversation.
Our RX's have a huge problem...they are sooo selective
they barely listen to their own frequencies, so the idea of them being bothered
by some sort of close emission from a grey tuned TX, while '
I have a Yellow/Blue V-Tail Sharon 3.7m TD sailplane
for sale. It has Volz servos throughout, RADS system
installed on the ailerons. Hitec Super Slim 8
receiever, just pop in your crystal, program and go
fly! It's that simple. This Sharon was purchased from
Edgar "Soaring Junkie" a couple of years
test
www.ferradasphotography.com
www.modelmayhem.com # 24657
www.onemodelplace.com #116327
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You bet Jim, great cells. In competition, the packs are first heated to
~50C to realize their full potential. It is at these temperatures and
higher that they offer excellent voltage retention!
Jim Laurel wrote:
Yes, for sure NiMh cells generally have lower impedance. But we are
talking abo
Yes, for sure NiMh cells generally have lower impedance. But we are
talking about the GP2200 here. I routinely draw around 70-95 amps
from these things in my 10 and 12-cell electrics. A TD plane, fitted
with DS368s will draw a max of what, 5-6 amps?
--Jim
On Mar 8, 2006, at 6:13 PM, Si
They (NiCD's) are across the whole operating range...
[EMAIL PROTECTED] wrote:
There is no current draw issue with those GP2200 cells! ;-)
how do those Nimh's hold up in cold temps. compared to Nicads ?
from my experience the Nicads are better in cold.
dh
--Jim
On Mar 8, 2006, at 5:4
Hi Jim,
The most important specification to consider is the cell impedence. You
might be surprised to discover that cell (larger) surface area in those
bigger NiMH cells still does not make up for lower impedence within an
even smaller NiCD cell.
Add a larger (similar) NiCD cell "and" the lo
Arne, Consider that the transmitter has very little pulse load
requirements, that is, the current drain is relatively constant so cell
resistance is a minor consideration. Therefore, the NiMH battery with its
superior capacity at moderate current is a better choice. The only downside
to NiMH
Check you local phonebook, or your local university or college
electrical/electronics dept.
George Voss wrote:
Can someone recommend a repair place for a 15A power supply? My charger
leads shorted out the PS. The charger lived but I let out the magic
smoke from the PS. If I can get if fixe
Ohhh ya, we conduct failure analysis on a regular basis at the full time
grind.
Our radio systems employ commercial grade componentry, the dialectric
changes over time within caps, checking on-frequency operation is wise.
Keep in mind it's not for your benefit, but the pilot operating his
sys
There is no current draw issue with those GP2200 cells! ;-)
how do those Nimh's hold up in cold temps. compared to Nicads ?
from my experience the Nicads are better in cold.
dh
--Jim
On Mar 8, 2006, at 5:40 PM, Simon Van Leeuwen wrote:
In a TX, NiMH offers superior performance given the
True enough, Simon. But if you use large enough NiMh cells, there is
more than enough ability to deliver the kinds of currents we need. I
have always thought it was silly to see people using 4-cell AA or
even AAA NiMh packs in big TD ships, then adding lead to balance. I
always try to ge
Actually without being as smart as some of you I can still disagree with
this.
Most radios do get out of alignment. I have been on the receiving end
of splatter. A tuneup couldn't hurt.
Receivers do emit RF. An ESL member has come up with a way of tracking a
receiver based on its emission. He s
In a TX, NiMH offers superior performance given the relatively low
current consumption. On the other hand, NiMH is inferior on the RX side
when current demands are high when compared to NiCD.
Arne Ansper wrote:
Hi!
Must get new battery for TX. Current one is down to 500mAh (from 750mAh)
a
I'm selling the following items:
a.) Sharon 3.7 Pro X-tail, Yellow & Blue, ready to fly
minus Rx, excellent condition(almost new condition) this
was my back up Sharon. $1450.00
b.) Addiction, 118" span, 7037 foil, $580 minus Rx.
c.) New in box Sharon 3.7 Pro X-tail, $1250.00
d.) 3M Gnome kit NIB
Arne,
I would suggest replacing your OEM NiCd pack with a higher capacity
NiMh pack. I did it a few years ago and have been delighted. I can
just about do a complete 2-day contest with my JR 9303 on a single
charge. I am using the 1650mAh Sanyo pack built by Steve Anthony at
hangtimes.c
You might consider asking a repair depot about how many TX's come in
that are indeed emanating into adjacent channels.
Secondly, RX's have interfered with each other in dual installations
causing a loss of range, which on some installations has been severe.
Using isolation techniques, the prob
What Doug said. :-)
Bill Swingle
Janesville, CA
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On Thu, Mar 09, 2006 at 02:07:34AM +0200, Arne Ansper wrote:
| On Wed, 8 Mar 2006, Bill Swingle wrote:
|
| >Each will work fine for the TX.
| >How will you charge it?
|
| I have Reflex charger that does peak prediction (same chip that is inside
| Sirius chargers), but it will only output 650mA
Arne,
The NiCd will have a longer life span, and the NiMH needs a GOOD
quality charger designed with NiMH features.
George
The Sirius Charger guy
At 01:45 AM 3/9/2006 +0200, Arne Ansper wrote:
Hi!
Must get new battery for TX. Current one is down to 500mAh (from 750mAh)
and lasts only
On Thu, Mar 09, 2006 at 01:45:08AM +0200, Arne Ansper wrote:
| Must get new battery for TX. Current one is down to 500mAh (from 750mAh)
| and lasts only for 2.5 hours. I can get 1100 mAh NiCd or 1650 mAh NiMH
| (both Sanyo) at the same price. Which one is better for TX?
The TX doesn't really ca
On Wed, 8 Mar 2006, Bill Swingle wrote:
Each will work fine for the TX.
How will you charge it?
I have Reflex charger that does peak prediction (same chip that is inside
Sirius chargers), but it will only output 650mA max. I've heard that NiMH
cells do not like too low charging current and
Title: Power Supply repair
Can someone recommend a repair place for a 15A power supply? My charger leads shorted out the PS. The charger lived but I let out the magic smoke from the PS. If I can get if fixed for a reasonable amount I’d like to do that instead of having to buy a new one.
g
Each will work fine for the TX.
How will you charge it?
Do you tend to abbuse your batteries?
Bill Swingle
Janesville, CA
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mess
Hi!
Must get new battery for TX. Current one is down to 500mAh (from 750mAh)
and lasts only for 2.5 hours. I can get 1100 mAh NiCd or 1650 mAh NiMH
(both Sanyo) at the same price. Which one is better for TX?
Arne
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Bill Swingle wrote:
Martin raises a good point. I have to confess that I've recommended
folks have their transmitters checked out every few years. But, that's
based on general knowledge that I can't "backup" for this specific
application.
I don't have any hard data on the behavior of solid
Guys, I need a source for a Hoops harness 3 piece wing (for a Zenith)
Thanks,
John Fruge
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Have a spare Stylus with Glider Card and Memory
Card (can clear out setups or leave on)
Radio only $325 (with choice of 16, 27 or 44
(new) module and brand new just received today battery)
GC $95 MC $75 + shipping
all for $450 OBO delivered CONUS
Tom
32 Mount View DrAfton, VA
2292
No flame, just fact. Radios/RF decks (modules) still have tuning coils and the
like. Just open up your radio or module and look at all the little parts with
wax on them, that's what gets adjusted. We, Horizon Hobby and JR service center
tune about 30-40 radios a day.
John
-Original Message
Martin raises a good point. I have to confess that I've recommended folks
have their transmitters checked out every few years. But, that's based on
general knowledge that I can't "backup" for this specific application.
I don't have any hard data on the behavior of solid state equipment over
ti
What a novel and smart suggestion. Makes one wonder how many TX's out
there have never experienced a tune-up...
They don't have any moving parts. Older radios may have parts like
descrete coils (sometimes with slugs) that can can change their size
slightly over time (mechanical, maybe due to jus
Wanted ; Pro Line receivers on ham band, preferably on 53.1. Please
reply offline. Bill
t
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