RunRyder RC
WATCH
 1 page 355 views POST REPLY
HomeRC & PowerAircraftHelicopterRadio - Servo - Gyro - Gov - Batt › JR 10X and synthesize transmitter module question.
02-06-2008 09:21 PM  10 years agoPost 1
xxcysxx

rrKey Veteran

Baltimore, MD - USA

My Posts: All  Forum  Topic

Hello,

for any of you who own the JR 10X and the synthesize transmitter module, or similar setup and notice this effect.
When i turn on the transmitter With the synthesize module, i notice the two green lights on the top front of the transmitter, the lights on the left turn on first and about half a second later the light on the right turn on.

but with the non-synthesize module, both lights turn on at the same time, instantly.

so is it normal for the left light to turn on before the right light with the synthesize module?

thanks

Tam

PM  EMAIL  Attn:RR  Quote
02-07-2008 06:09 AM  10 years agoPost 2
Costas

rrApprentice

Adelaide - AUSTRALIA

My Posts: All  Forum  Topic

Yes - that is perfectly normal behaviour.

PM  EMAIL  Attn:RR  Quote
02-07-2008 10:04 AM  10 years agoPost 3
9387ASH

rrElite Veteran

UK

My Posts: All  Forum  Topic

When a normal xtal based module is used, RF is generated almost immediately. The LED is driven by a detector that snoops the antenna feed and when RF is detected it lights the LED.

On the syntheised module, there is a deliberate delay in RF amplification so as to allow the synthesiser to "lock on" to the correct frequency, once this delay is reached it then allows the RF amplifier to send out RF. This is then detected as above and hence the delay between the 2 LED's.

PM  EMAIL  Attn:RR  Quote
02-07-2008 03:38 PM  10 years agoPost 4
xxcysxx

rrKey Veteran

Baltimore, MD - USA

My Posts: All  Forum  Topic

Thanks guys for the help.

Tam

PM  EMAIL  Attn:RR  Quote
WATCH
 1 page 355 views POST REPLY
HomeRC & PowerAircraftHelicopterRadio - Servo - Gyro - Gov - Batt › JR 10X and synthesize transmitter module question.
 Print TOPIC  Make Suggestion 

 1  Topic Subscribe

Sunday, December 9 - 11:35 pm - Copyright © 2000-2018 RunRyder   EMAILEnable Cookies

The RC discussion world needs to consolidate. RR is now one choice for that. Its software is cutting edge. It hosts on-topic advertising. Help RR increase traffic buy making suggestions, posting in RR's new areas (sites) and by spreading the word.

The RunRyder Difference

• Category system to allow Rep/Vendor postings.
• Classifieds with sold (hidden) category.
• Classifieds with separate view new.
• Answer PMs offsite via email reply.
• Member gallery photos with advanced scripting.
• Gallery photo viewer integrated into postings.
• Highly refined search with advanced back end.
• Hosts its own high end fast response servers.
• Hosts thousands of HD event coverage videos.
• Rewrote entire code base with latest technology.
• No off-topic (annoying) click bait advertising.
Login Here
 New Subscriptions 
 Buddies Online