Need Help with Futaba TX and RX combinations
04-30-2009, 12:25 PM
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Need Help with Futaba TX and RX combinations
Dear All,
the receiver that came with my Futaba 6EXHP came with a Futaba R146iP receiver. This is a micro low to high band receiver which only accepts single conversion (shorter) crystals. Though I have never had any problems, I have only one matched pair and have to keep swapping crystals between my planes depending on which one I want to fly on a specific day. Hence I am considering moving to a receiver which can accept the more easily available dual band crystals. In this regard I have three questions:
1) Single conversion crystals are available from GWS. Has anyone out there used Futaba receiver with GWS crystal and will it work?
2) Both single and dual conversion crystals are available in Hitec make in matched pairs. Will these work with my Futaba R146iP receiver and 6EXHP TX?
3) For my next airplane I want to go for dual conversion receiver. Futaba R136F is available. I am not very sure of this receiver mainly because it is not listed on the Futaba web page even in the old section. Has anyone used this receiver and will it work with the 6EXHP. Also the receiver itself seems to say 35MHZ (online purchase), so can it take a 72Mhz crystal
Ameyam
the receiver that came with my Futaba 6EXHP came with a Futaba R146iP receiver. This is a micro low to high band receiver which only accepts single conversion (shorter) crystals. Though I have never had any problems, I have only one matched pair and have to keep swapping crystals between my planes depending on which one I want to fly on a specific day. Hence I am considering moving to a receiver which can accept the more easily available dual band crystals. In this regard I have three questions:
1) Single conversion crystals are available from GWS. Has anyone out there used Futaba receiver with GWS crystal and will it work?
2) Both single and dual conversion crystals are available in Hitec make in matched pairs. Will these work with my Futaba R146iP receiver and 6EXHP TX?
3) For my next airplane I want to go for dual conversion receiver. Futaba R136F is available. I am not very sure of this receiver mainly because it is not listed on the Futaba web page even in the old section. Has anyone used this receiver and will it work with the 6EXHP. Also the receiver itself seems to say 35MHZ (online purchase), so can it take a 72Mhz crystal
Ameyam
04-30-2009, 01:51 PM
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RE: Need Help with Futaba TX and RX combinations
why not get a computer transmitter and store all your airplanes in one transmitter..... buy a few chrystals for the receivers...and be done...
makes life alot easier
makes life alot easier
04-30-2009, 01:59 PM
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RE: Need Help with Futaba TX and RX combinations
Since you are on 72mhz...
Polk Hobbies has their Tracker III 72 mhz transmitters on sale for $99.00.
These can handle up to 99 planes, have computer controlled mixes, will operate on any 72mhz frequency without crystals, have a built in frequency scanner, are shift selectable ( works with JR, Airtronix, Futaba, etc. receivers! ) has 8 channels, comes with a servo, receiver & transmitter battery pack, switch, etc. etc. etc.
I've been quite impressed with these and I just purchased a second one to use with my planes that are on 72mhz and have their own synth receivers.
Since I can change the frequency of the transmitter ( and the receiver ) at will, I'm less inclined to spend the $99 times 30 some planes ( $3,000.00 !! ) to switch my entire fleet over to 2.4ghz.
I've been switching my newer larger planes over to 2.4ghz slowly.
Polk Hobbies has their Tracker III 72 mhz transmitters on sale for $99.00.
These can handle up to 99 planes, have computer controlled mixes, will operate on any 72mhz frequency without crystals, have a built in frequency scanner, are shift selectable ( works with JR, Airtronix, Futaba, etc. receivers! ) has 8 channels, comes with a servo, receiver & transmitter battery pack, switch, etc. etc. etc.
I've been quite impressed with these and I just purchased a second one to use with my planes that are on 72mhz and have their own synth receivers.
Since I can change the frequency of the transmitter ( and the receiver ) at will, I'm less inclined to spend the $99 times 30 some planes ( $3,000.00 !! ) to switch my entire fleet over to 2.4ghz.
I've been switching my newer larger planes over to 2.4ghz slowly.
04-30-2009, 04:13 PM
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RE: Need Help with Futaba TX and RX combinations
In the US, we are not allowed to change transmitter crystals without having the transmitter checked for proper tuning.
I know you are not in the US, so that may not apply.
Tower has the Futaba crystals you need for $12.99 each on quite a few frequencies
http://www3.towerhobbies.com/cgi-bin...P=9&I=LXBFL2**
Air: 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59 and 60
and
http://www3.towerhobbies.com/cgi-bin...I=LXBFL1**&P=9
Air: 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34 and 35
The Great Planes crystal http://www3.towerhobbies.com/cgi-bin...I=LXFAT0**&P=0 is also compatible with your receiver. Tower has the following frequencies in stock for $8.99 each:
Air: 11, 12, 13, 14, 15, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 35, 41, 43, 46, 49, 51, 53, 54, 55, 56, 57, 59 and 60
According to the GWS web site http://www.gws.com.tw/english/produc...on%20chart.htm their receiver crystals are "Compatible Frequency Error Within ± 300HZ" in a Futaba receiver. I do not know if that is good enough. They claim their transmitter crystal is a direct replacement for Futaba.
You cannot use any 'dual conversion' crystal in the receiver you have. I do not know if a Hitec single conversion crystal will work in your Futaba receiver. I would not risk using the Hitec crystals in the receiver or transmitter.
If a receiver you are looking at is on the 35mhz band, it is not compatible with your 72 mhz equipment. I have no idea how to find info for the R136F. Hitec, GWS, and Castle Creations (Berg) all make 72mhz receivers that work with Futaba transmitters so you do have options.
I know you are not in the US, so that may not apply.
Tower has the Futaba crystals you need for $12.99 each on quite a few frequencies
http://www3.towerhobbies.com/cgi-bin...P=9&I=LXBFL2**
Air: 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59 and 60
and
http://www3.towerhobbies.com/cgi-bin...I=LXBFL1**&P=9
Air: 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34 and 35
The Great Planes crystal http://www3.towerhobbies.com/cgi-bin...I=LXFAT0**&P=0 is also compatible with your receiver. Tower has the following frequencies in stock for $8.99 each:
Air: 11, 12, 13, 14, 15, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 35, 41, 43, 46, 49, 51, 53, 54, 55, 56, 57, 59 and 60
According to the GWS web site http://www.gws.com.tw/english/produc...on%20chart.htm their receiver crystals are "Compatible Frequency Error Within ± 300HZ" in a Futaba receiver. I do not know if that is good enough. They claim their transmitter crystal is a direct replacement for Futaba.
You cannot use any 'dual conversion' crystal in the receiver you have. I do not know if a Hitec single conversion crystal will work in your Futaba receiver. I would not risk using the Hitec crystals in the receiver or transmitter.
If a receiver you are looking at is on the 35mhz band, it is not compatible with your 72 mhz equipment. I have no idea how to find info for the R136F. Hitec, GWS, and Castle Creations (Berg) all make 72mhz receivers that work with Futaba transmitters so you do have options.
04-30-2009, 04:19 PM
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RE: Need Help with Futaba TX and RX combinations
ORIGINAL: jetmech05
why not get a computer transmitter and store all your airplanes in one transmitter.....
why not get a computer transmitter and store all your airplanes in one transmitter.....
04-30-2009, 06:12 PM
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RE: Need Help with Futaba TX and RX combinations
Buy a couple of these and the crystals for your channel from hitech, you should not try to mix crystal brands. hitech to hitech futaba to futaba. Look into these, they work fine with any 72mhz radio. [link=http://www3.towerhobbies.com/cgi-bin/wti0001p?&I=LXKYK3&P=0]Hitech rx[/link] I use these for everything 72 mhz with good results.
