"NS Rana,
There is only one way to find out, and that is to put it inside and try it out."
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Crist Rigotti
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- North Liberty, IA
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Latest Activity
Crist Rigotti commented on Jordi Muñoz's blog post How to boost your 2.4Ghz Spektrum/JR Transmitter signal!Crist Rigotti commented on Jordi Muñoz's blog post How to boost your 2.4Ghz Spektrum/JR Transmitter signal!"I did this mod and it worked very well. I posted a detailed description on RCGroups here:
http://www.rcgroups.com/forums/showthread.php?t=1247186"
Crist Rigotti commented on Jordi Muñoz's blog post How to boost your 2.4Ghz Spektrum/JR Transmitter signal!"Oops! I ended up buying a different sma to uFL cable that had a RP SMA bulkhead fitting on it. That way I could just screw the antenna on it without an adapter that Mark Cowell uses. Then I bought some RP sma connectors for my RG316 cable when…"
Crist Rigotti commented on Jordi Muñoz's blog post How to boost your 2.4Ghz Spektrum/JR Transmitter signal!"That's a reverse polarity connector. Probably the antenna screws on that end. Mine does."
Crist Rigotti commented on Jordi Muñoz's blog post How to boost your 2.4Ghz Spektrum/JR Transmitter signal!"How warm does the booster get when working after a while?"
Crist Rigotti commented on Jordi Muñoz's blog post How to boost your 2.4Ghz Spektrum/JR Transmitter signal!"Has anybody taken this booster out of its cast aluminum case? The case seems heavy and I'd like to lighten up my installation on my DX7. I could fabricate a lightweight tin housing for it. Now the heavy case could be a heat sink. How warm does…"
Crist Rigotti commented on Jordi Muñoz's blog post How to boost your 2.4Ghz Spektrum/JR Transmitter signal!"I opened up my US DX7 and my RF module has a sticker on it saying it is 21.3dbm just as a reference for everybody.
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Crist Rigotti left a comment for Mark Colwell"I will on both counts.
I'm about to cover the fuse of the Easy Star with 3/4 oz fg and epoxy. I deepened the fuselage by 1 inch to get more space inside. We'll see how much this thing weighs when I'm done."
Crist Rigotti left a comment for Mark Colwell"Mark,
Thanks. I think I'll use an attenuator also. You've been very helpful.Delete Comment"
DeveloperMark Colwell left a comment for Crist Rigotti
"Right, It's fine without long cable or attenuator, I tested this for over 4 hours on bench , while setting up my ET OSD Pro, Jordi contacted manufacture and true safe input power level is at 20dbm, I also have a -3db attenuator, and will use it…"
Crist Rigotti left a comment for Crist Rigotti"Mark, I have flown the system in my Hobby People Super Lightning (Easy Star clone) to 1700 feet away with no bad effects. My system is the DX7, AR7000 receiver with 1 satellite receiver, Turnigy 2212 1050kv motor, Turnigy Plush 18A ESC, 2 HXT-900…"
Crist Rigotti left a comment for Mark Colwell"Mark,
Thanks for the info. So hooking up the system without a long coax cable hasn't harmed the amp? I thought that the DX7 puts out about 200mw and the amp input was 100mw and we had to use a -4db or so attenuator."
DeveloperMark Colwell left a comment for Crist Rigotti
"You should test your video system on ground or 10'above (plane on roof) to be sure that harmonics from video tx doesn't swamp your 2.4 ghz receiver !! Good Luck, Can you post info about your FPV setup, TX, RX models cost etc."
DeveloperMark Colwell left a comment for Crist Rigotti
"Works great, I flew my pocket combat wing with it yesterday. I added a -10db attenuator during DX-7 storage, I remove the low power antenna when stored in travel case as it won't fit when installed, I place attenuator on sma connector when…"
Comment Wall (7 comments)
- At 8:32pm on March 19, 2010,
DeveloperMark Colwell said… - I am originally from Waterloo Ia. I was back last Sept to bury my Mom, Marlene A Colwell Where is North Liberty?
- At 8:37pm on March 19, 2010, Crist Rigotti said…
- North Liberty is between Coralville and Cedar Rapids. I have a DX7 and just ordered the 500mw amplifier. Is you mod still working well and are there any other things I should know that isn't mentioned on the Forum.
Thank you,
Crist
- At 8:56pm on March 19, 2010,
DeveloperMark Colwell said… - Works great, I flew my pocket combat wing with it yesterday. I added a -10db attenuator during DX-7 storage, I remove the low power antenna when stored in travel case as it won't fit when installed, I place attenuator on sma connector when antenna is off, I do this as I have left power on or it turns on when something shifts in case. When power is on with no antenna it can burn up a transmitters output amplifier! I can use it to reduce power into 500 mw amp also. You can just leave an antenna on all the time too. Or use a 50 ohm 1/2 watt carbon resistor as a dummy load instead of -10db attenuator.
- At 9:05pm on March 19, 2010,
DeveloperMark Colwell said… - You should test your video system on ground or 10'above (plane on roof) to be sure that harmonics from video tx doesn't swamp your 2.4 ghz receiver !! Good Luck, Can you post info about your FPV setup, TX, RX models cost etc.
- At 9:32pm on March 19, 2010, Crist Rigotti said…
- Mark, I have flown the system in my Hobby People Super Lightning (Easy Star clone) to 1700 feet away with no bad effects. My system is the DX7, AR7000 receiver with 1 satellite receiver, Turnigy 2212 1050kv motor, Turnigy Plush 18A ESC, 2 HXT-900 servos, a BestOfferBuy 700mw 1.28ghz video system. I use a G.P. Patch antenna that I made from the RC-Cam website, the VRx is tuned to channel 9, I use an Aiptek MVPR+CB to record the video, and a Sony 9" DVD plyer as my screen. I also have 2 of the Trimersion gogles. I'm using an Eagle Tree OSDPro OSD, eLogger V3, and Eagle Tree GPS. I just received an Eagle Tree Eagle Eyes ground station. A Sony 480 TVL .5 lux eBay camera. I'm using a home made 1/4 wave VTx antenna using a piece of RG316 coax (wotks very well).
I'm working on an Easy Star with a similar Turnigy motor, a Castle Creations Phoenix 25 ESC, HXT-900 servos and I'll take the same stuff out of the Super Lightning and use it in the Easy Star.
I'm new to this, but a long time modeler and R/C flyer. I fly the SL visually from the ground but now that the weather is getting better, I can hook up with some flying buddies and they can spot for me as I learn to go "under the hood."
- At 7:23am on March 20, 2010,
DeveloperMark Colwell said… - Right, It's fine without long cable or attenuator, I tested this for over 4 hours on bench , while setting up my ET OSD Pro, Jordi contacted manufacture and true safe input power level is at 20dbm, I also have a -3db attenuator, and will use it on input of power amp just to be safe..
- At 7:52am on March 20, 2010,
DeveloperMark Colwell said… - Let me know how it goes, have fun..
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