View Full Version : Frequency change in a 9303
tracerbob
10-19-2006, 06:48 PM
So....from what I see posted on this thread, I can install a synthesed module in my TX, swap out the crystal in my RX and It will be cool with the FCC?
If we're not supposed to do frequency changes then why do the manufactures make radios with removable crystals? Here I go again, stirring the pot :twisted:
Pinecone
10-20-2006, 06:28 AM
Yes, read the thread again, other markets allow TX Xtal swapping
BarracudaHockey
10-20-2006, 10:42 AM
Module swapping is legal, all of the tunable components that determine the final output are within the module.
PLL tuning is legal
Changing the crystal in the module would be illegal.
The FCC doesn't care what you do with your receiver.
tracerbob
10-20-2006, 07:22 PM
Module swapping is legal, all of the tunable components that determine the final output are within the module.
PLL tuning is legal
Changing the crystal in the module would be illegal.
The FCC doesn't care what you do with your receiver.
I will buy a new module/cyrstal for my TX and a new crystal for my RX. Happy flying and no figure 9's
Pinecone
10-21-2006, 07:42 AM
And I would seriously look at buying the synthesized module to avoid this problem in the future.
sparky
10-28-2006, 03:38 PM
What are you guy's talking about when you say synthesised module?
About 6 years ago, when I was flying in the states, we used to swap channels in our radios all the time. When did they start banning it?
BarracudaHockey
10-28-2006, 04:55 PM
1991
kgfly
10-29-2006, 02:14 AM
A "synthesised module" is a plugin Tx module with a digitally synthesised transmitter that allows you to select amongst any of the channels in the module's band. You no longer have to change crystals to change channels. When combined with a synthesised Rx you have a system that lets you select any unused channel to fly your model.
sparky
10-29-2006, 08:39 AM
SWEET!!!!!!!!!!!!!!!!!
Has it benn time tested and proven!
Any drawbacks noted?
WayneBrown
10-29-2006, 09:26 AM
I've been using the syth stuff all summer, no worries.
sparky
10-29-2006, 09:36 AM
About how much does it cost, and what is involved in getting it? I have been out of the loop toooooooooo loooooooong!
Pinecone
10-30-2006, 09:57 PM
JR Tx Synth module is $99.
The JR R790 PCM synth Rx is $99.
sparky
10-31-2006, 07:57 AM
Another 200.00! When does it end? He he! lol.
BarracudaHockey
10-31-2006, 08:18 AM
Another 200.00! When does it end? He he! lol.
When your wife sees the credit card bill. :shock:
Pinecone
10-31-2006, 03:38 PM
But for that $200 you never have to wait for a frequency.
And where does it end, if you haven't figured out IT DOESN'T END, you may still believe in Santa Claus. :)
sparky
10-31-2006, 03:59 PM
Hey, leave Santa out of this! He never hurt anyone! LOL!!!!!!!!!!!!!!!!!!