Difference between R138DP and R148DP
07-15-2003, 01:50 AM
#1
Senior Member
Thread Starter
My Feedback: (1)
Join Date: Jan 2002
Location: St Louis, MO
Posts: 1,176
Likes: 0
Received 0 Likes
on
0 Posts
Difference between R138DP and R148DP
So what's the difference between an R138DP and an R148DP? The price difference at Tower is $50. They are both 8 channel dual conversion PCM. What am I missing. The case seems different, but who cares about that?
Tom
Tom
07-15-2003, 03:05 AM
#3
Senior Member
My Feedback: (16)
Join Date: Apr 2002
Location: Locust Grove,
GA
Posts: 12,942
Likes: 0
Received 0 Likes
on
0 Posts
Difference between R138DP and R148DP
The main difference between the R138DP and the R148DP is the size and weight, the R148DP is smaller and lighter than the R138DP, so it is more useful to glider pilots or anyone that must take weight into consideration. Also the R148DP has the connector pins on the side of the receiver instead of the top.
Last, the R138 has one regulator for voltage and the R148 has two, neither of which regulate voltage to the servos.
Last, the R138 has one regulator for voltage and the R148 has two, neither of which regulate voltage to the servos.
07-15-2003, 07:25 PM
#4
Senior Member
Join Date: Aug 2002
Location: Lancs, UNITED KINGDOM
Posts: 108
Likes: 0
Received 0 Likes
on
0 Posts
Difference between R138DP and R148DP
According to the schematics the R148DP has two voltage regulators and the 148DF one. Both use the same PCM processors and the servo output voltages are regulated .
The front end RF circuitry of the R148DP is considerably more complex than the R138DP. It uses Futaba's own design circuitry (more components) similar to JR's ABC&W.
DavidO.
The front end RF circuitry of the R148DP is considerably more complex than the R138DP. It uses Futaba's own design circuitry (more components) similar to JR's ABC&W.
DavidO.
