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06-29-2010, 07:54 PM
| #1 |
| Rock Crawler Join Date: Feb 2010 Location: Sturgis
Posts: 719
|  tx/rx matching
I just bought a used futaba 3pm , and I have an airtronics reciever . Both of them are in 75mhz ,but niether have crystals . So when shopping for crystals do I need to stick to Futuba tx rx crystals or futaba tx and airtronics rx crystals? Thanks in advance -Bob
Last edited by camobob; 06-29-2010 at 07:56 PM. |
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06-29-2010, 08:04 PM
| #2 |
| Quarry Creeper Join Date: Jun 2005 Location: Las Vegas
Posts: 443
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won't work... futaba is positive shift and airtronics is negitive shift. No matter what crystals you try they will not talk to each other PERIOD. You'll need a futaba OR hitec 75Mhz receiver with the same brand crystals... in other words hitec crystals for hitec receiver and futaba for futaba. |
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06-29-2010, 08:13 PM
| #3 |
| Rock Crawler Join Date: Feb 2010 Location: Sturgis
Posts: 719
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so hi tech will "talk" to futaba ?
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06-29-2010, 08:22 PM
| #4 | |
| Quarry Creeper Join Date: Jun 2005 Location: Las Vegas
Posts: 443
| Quote:
I run a mix of hitec receivers both dual and single conversion on either my 3pks or the couple of 3PM's I still have kicking around. On a side note I use a spektrum module on my 3PKS as well... just noticed the antenna is cracked at the base where it folds  I've only had it a few months and have been EXTRA careful with it. In all the years I've been using 72-75 Mhz radios(20+) I have NEVER broken an antenna... I did wear a few out after YEARS of use.
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06-29-2010, 08:23 PM
| #5 |
| Rock Crawler Join Date: Feb 2010 Location: Sturgis
Posts: 719
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I frickin called futaba and asked them about adding another vehicle to the ten model memory and they said as long as its 75mhz and the same channel I would be fine. Sucks when tech dosent know their own product.
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06-29-2010, 08:32 PM
| #6 | |
| Quarry Creeper Join Date: Jun 2005 Location: Las Vegas
Posts: 443
| Quote:
Huh...new one to me... If this were true why did novak make thier XXL receivers shift selectable? seems like it would have been a waste of effort  Unless something has changed Airtronics/JR will not work with Futaba/hitec.I did get the shifts wrong in my first post... old age bad memory  futaba/hitec is Negitive shift and Airtronics/Jr is Positive.
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06-29-2010, 09:12 PM
| #7 |
| Rock Crawler Join Date: Feb 2010 Location: Sturgis
Posts: 719
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Thanks for your help .
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