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Mar 24, 2010, 11:31 AM
Registered User
Quote:
Originally Posted by trappy View Post
0.2W, not 0.02W at output power
and 0.6 indeed thx changed

http://spreadsheets.google.com/pub?k...=0&output=html
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Mar 24, 2010, 11:37 AM
Suspended Account
Quote:
Originally Posted by jimbob00 View Post
By the way i took this occasion to update this page, i hope it looks correct:

http://spreadsheets.google.com/pub?k...=0&output=html
Few errors:

Voltage input Rx : 4.8 - 7.4V
Current Rx : 35mA

LNA/Filters : most certainly, on all inputs/outputs

Voltage out (servos) : 3.3V

Sensitibity Rx : -112dBm

Power levels: 0.2W - 0.6W, but we also have lower power modes available as we can attenuate the output at will.

Distress/locate beacon : most certainly

Size Tx : 23x73x80mm
Weight Tx : 118 grams

USB control: the Tx can be connected to a PC and have joystick control etc.

Those were just a few things I noticed.

Cheers,

Sander.
Mar 24, 2010, 11:42 AM
Registered User
wallaguest1's Avatar
mmm what a nice product!

but dont looks very confortable to attach it in the back of the radio when external supply its needed,
Mar 24, 2010, 11:52 AM
Suspended Account
Quote:
Originally Posted by wallaguest1 View Post
mmm what a nice product!

but dont looks very confortable to attach it in the back of the radio when external supply its needed,
In most cases (especially with the immensely popular FF7/FF9/FF10) you can just connect directly to the radio via the trainer power and draw power from there, like my own personal FF7 transmitter for example pictured below.





Cheers,

Sander.
Mar 24, 2010, 11:53 AM
Challenging Convention
Andology's Avatar
while you're updating the LRS comparison chart (which is great effort, as with the OSD one, good job)... i noticed you've got "Detress bacons" as a feature which i believe should be "distress beacon"

Cheers

Andy
Mar 24, 2010, 11:55 AM
Challenging Convention
Andology's Avatar
doesnt look as sexy without the new Carbon Fibre plates on the transmitter module!
Mar 24, 2010, 12:01 PM
Registered User
Quote:
Originally Posted by ssassen View Post
Distress/locate beacon : most certainly

USB control: the Tx can be connected to a PC and have joystick control etc.
Thanks for the additional data (link ref http://spreadsheets.google.com/pub?k...=0&output=html )

I'm wondering if the joystick support is already existing, or you just mean can be done?
Also, same question for the distress bacon

thanks again

Quote:
Originally Posted by Andology View Post
while you're updating the LRS comparison chart (which is great effort, as with the OSD one, good job)... i noticed you've got "Detress bacons" as a feature which i believe should be "distress beacon"
indeed, quite a noob error, i corrected it as well ^^
Mar 24, 2010, 12:06 PM
Registered User
wallaguest1's Avatar
what about a 90 SMA connector in the Tx module?

this way the antena is in the correct polarization for best range
Mar 24, 2010, 12:24 PM
Challenging Convention
Andology's Avatar
one of them

http://www.dpcav.com/xcart/product.p...cat=258&page=2

Although people don't like connectors coz of loss etc.. by the sounds of it though, you could probably afford to lose a whole bunch before you start noticing anything @ less than 15km away...

Cheers

Andy
Mar 24, 2010, 12:28 PM
Registered User
Quote:
Originally Posted by wallaguest1 View Post
what about a 90 SMA connector in the Tx module?

this way the antena is in the correct polarization for best range
How about one of these?
http://cgi.ebay.com/6-Lot-Right-Angl...item335b4198c4

Another way to mount the transmitter is on a tripod, with a relatively high gain omni pointing straight up. Since the transmitter interface is a standard 4-pin mini-din, any S-Video extension cable can be used to make the connection to it.
Most audio/video stores carry some nice super-flexible S-Video extension cables, which are ideal for this.
(for those technical folks who realize that S-Video cables are two twisted-pairs... yes, they are twisted appropriately for EzUHF use)
Mar 24, 2010, 12:33 PM
Senior Gravity Checker
What could be better than distress bacon. Mmmmm... I'd buy it for that option alone!
Mar 24, 2010, 12:55 PM
Challenging Convention
Andology's Avatar
Quote:
Originally Posted by kist2001 View Post
What could be better than distress bacon. Mmmmm... I'd buy it for that option alone!
Although that kind of assumes your battery pack is still connected in your "downed" plane, which from most peoples accounts & experience is very seldom the case...
Mar 24, 2010, 12:58 PM
Challenging Convention
Andology's Avatar
Quote:
Originally Posted by ImmersionRC View Post
How about one of these?
http://cgi.ebay.com/6-Lot-Right-Angl...item335b4198c4

Another way to mount the transmitter is on a tripod, with a relatively high gain omni pointing straight up. Since the transmitter interface is a standard 4-pin mini-din, any S-Video extension cable can be used to make the connection to it.
Most audio/video stores carry some nice super-flexible S-Video extension cables, which are ideal for this.
(for those technical folks who realize that S-Video cables are two twisted-pairs... yes, they are twisted appropriately for EzUHF use)

I'm assuming we're gonna need to keep the transmitter away from the 2.4Ghz video Rx antennas? Coz would be good to bung a UHF (transmitting) antenna on the tracker with all the other (receiving) gear...

Cheers

Andy
Mar 24, 2010, 01:12 PM
Registered User
Quote:
Originally Posted by Andology View Post
I'm assuming we're gonna need to keep the transmitter away from the 2.4Ghz video Rx antennas? Coz would be good to bung a UHF (transmitting) antenna on the tracker with all the other (receiving) gear...

Cheers

Andy
With these power levels its actually not really a problem. Even when standing beside the tripod containing the receiver antenna, on high power.

This is one of the problems with the higher-power solutions, with a 7W PA, you really need to run a several-meter cable to a second tripod in order to avoid some nasty interference.
Of course, what makes things worse, is that the PA is generally required when the plane is at long range, and gets into trouble, which is where the video signal is generally marginal. A marginal video signal is knocked out far easier by the overpowering UHF interfering signal.

So you basically get to choose uplink, or video, or uplink, or video, or uplink... :-)
Mar 24, 2010, 01:22 PM
Challenging Convention
Andology's Avatar
but not both.....


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