where did you get the GWS on 75?
I got mine at banebots. They do get the jitters alot though.
Byron
The place I bought my Tx from is no longer around, but Caliber Hobbies carries them. You want the GW/T4AII Tx, which although listed as 72 mhz on their site, will take the 75mhz crystals, and then a matching Rx and crystal. As always, check with them about your order to make sure everything will work together. Should come out just under $100. I can’t run AM at our pond because of interference, but the GWS stuff seems to work fine. It’s a (sort of) six channel setup; ch 3 for the sail servo through a wire harness and ch 1 for the rudder.
Cheers,
Earl
Just save your money & buy a spread spectrum radio. You’ll never look back!
Happy Yachting - Kip
the idea here is a VERY small on board package for small sailboats, the spread spectrum may help for frequency control
edit:
:long: ooh I just found really small spread spectrum receivers…never mind
IMO, even the spreadivers spectrum receivers are on the big side, because of the space needed for the aerials. Plus, I have all the AM crystals, so I don’t really want to buy new radios when all I need is a receiver.
There’s nothing bad about the AM radio systems to make one change over.
Is there anything new for the AM radio guys in the small-size receiver?
thx
I found 3 channel GWS receivers in FM PWM on a robot parts website for $20.
15 x 25 x 9.5 mm
4.4g
150m range ( Is that enough?)
I just don’t have an FM transmitter. 
Check this Hong Kong site’s radios, but watch the frequencies if you order anything, since some are not legal in the USA. The 6 channel 2.4 ghz tx/rx combo (second on the list) looks like a good deal, although it’s not really a micro rx. There are some six channel FM radios listed further down the page.
<http://images.r2hobbies.com/rcps61206_61411/01.jpg>
Regards,
Bill Nielsen
Oakland Park, FL USA
Unless you’re getting into digital stuff, you don’t have any choices for 2-channel, 75MHz AM left. You get to stick with the old plastic box receivers like R112JE from Futaba.
Either that or layout $60,000 for people overseas to make one to the specs we’d like for Footies. Then you’d spend forever selling off 10,000 units…
Hi T-H,
When you can buy a 4 channel Rx for less than $20, or a 4ch FM Tx for $50, just how much cheaper do you think they could sell a 2 channel for? The smaller Futaba 2 channel Rx (the only one Futaba sells separately now, apparently) is about $40. For only a few dollars more you can get a 2.4Mhz 4 channel Rx with matching Tx via mail order. What’s the big deal with putting a 4 ch Rx in your boat and only plugging in 2 servos? It’s not like those extra channels are adding a lot of weight! It would be different if the old tech AM stuff were significantly cheaper, but it’s not. It might even be more expensive, depending on what you compare it to. FWIW, I still have some 4 & 6 radios on 27mhz, and as long as they still work I’ll use them. Time was when that’s all you could get, and they cost a lot more relative to a weeks wages than radio systems today. Servos used to be $39.95, and look at the variety & prices of them today. Sometimes, “the good old days” weren’t really THAT good!
Regards,
Bill Nielsen
Oakland Park, FL USA
Just bought a Spektrum set up, the recievers are very light and TINY!!
Virtually no antennae to fumble with at all!!:zbeer:
http://www.spektrumrc.com/Products/Default.aspx?ProdID=SPM6620
There’s nothing wrong with analog 75 MHZ AM radios. They work great, turn on instantly, and adjustments are simple and can be done without looking. You just can’t get any small receivers or 4 channel transmitters.
From the experiences I’ve had so far, it’s too much of a hassle to fiddle with the computer radios, and the constant beeping during regattas drives me
crazy. :mad:
thx
Once set the 2.4’s are real easy, and the constant beeping is the equivalent of “swing batta batta swing batta” at the ball park…
These guys sell a 2.4GHz conversion module for a radio I already own:
http://www.xtremepowersystems.net/index.php
A little pricey but no external antenna and receivers are available up to 12 channels. Unfortunately for TomoHawk there would be another beepy radio to make him cringe.:rolleyes:
Brian
Guys,
The micro receivers are primarily for use in Footies, so small is the first goal, and inexpensive is the second. Would you expect a “cub Scout” to dish out (or get mom to pay) $200 or $300 for a digital radio system for a Footy when he could get an AM radio for a lot less? People (old guys) will give away their old AM transmitters when they get boared with planes & cars, so you just need an AM 75 MHz receiver.
Footies are also excellent for giveaways, so you wouldn’t want to spend a lot just so some kid in a wheelchair can have something to do at summer camp.
thx
These are not micro or 75MHz, but they are Boy Scout priced at US$4 plus crystal:
"AM-27MHZ 4 CHANNEL RECEIVER
SIZE:48 X 32MM ANTENNA:800MM
interchangeable crystal.
PPM mode, weight 25g
Compatible with Futaba’s transmitter"
http://www.bidproduct.com/part/Product_view_TRANSMITTER%20RECEIVER%20CRYSTAL_2.html
Or a complete 3 channel set for $20 plus freight with a smallish, caseless receiver.
http://www.bidproduct.com/part/Product_view_TRANSMITTER%20RECEIVER%20CRYSTAL_57.html
Or local, but listed as 27MHz FM:
http://www.raidentech.com/reforrarecoa.html
They have a 3 channel transmitter for US$10 too but give no frequency details?
How many Boy Scouts actually sail Footies. I think that the demographic for our boats is quite a bit older so why does this Boy Scout litmus test continue to be brought up. Wouldn’t it be more accurate to phrase the desire to keep costs down by saying, “…to make it so the ‘fixed income guy’ can stay involved”?
Ok, I’d like to keep the costs down because most of the boats go to kids charity clubs & summer camp organizations.
I also know some kids that want to build their own Footies. They happen to be cub scouts.
I’m not sure what happens in the US, but here kids mostly get a lot of money spent on them in the way of fashionable trainers, iphones, etc, etc.
This is a subjct that is very dear to my heart. I am pretty convinced that the tendency of ‘youth-oriented’ Footy builders to adopt this primitivistic cub scout attitude is responsible for the fact that very few young people are awfully interested in Footys. How cool did you find airships and coal-fired battleships when you were 15?
:graduate::zbeer::devil3::devil3::devil3: