Fortress Technologies Micro Package Contents, Servo Plug Color Orientation, Servo Brand

∗FCC Information: FCC ID: KH8-T2000 - This device complies with Part 15 of the Rules.

Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept interference received, including interference that may cause undesired operation.

PACKAGE CONTENTS:

1.FMA Direct Fortress micro series AM or FM, 8 channel, Universal PPM receiver

2.Dealer or factory-installed channel crystal (if purchased with unit)

3.Owner's Manual

4.Programming Quick Reference

	and be certain to ground range check the receiver with each incremental reduction in
	antenna length. NEVER CUT THE ANTENNA SHORTER THAN 18 INCHES! A
	special note to helicopter pilots concerning standard FM receivers and antenna
	placement: FMA Direct receivers are tested thoroughly in all types of aircraft including
	helicopters. Helicopters often create a challenge because they generate RF noise
	and heavy vibration from fast-moving parts. In order to improve reception in a
	helicopter, it is recommended that you route the antenna of the receiver as far away
	from the tail boom as possible. This is particularly true of carbon-fiber booms. Nylon
	push rod material mounted to the underside of the skids provides a good channel
	through which to route the antenna.
3.	Fortress micro series	TABLE 1 SERVO PLUG COLOR ORIENTATION

PREPARATION:

•	AM VERSION COMPATIBILITY
	Fortress micro AM version receivers are compatible with any AM transmitter set up on the
	same frequency as your Fortress micro AM receiver. All Fortress micro receivers support full
	crystal interchangability using FMA Direct low-profile Fortress micro series crystals. Contact
	your local FMA Direct dealer or call FMA Direct to obtain the correct Fortress micro series
	crystal for operation with your transmitter frequency.
•	FM VERSION COMPATIBILITY - PROGRAMMING THE FORTRESS MICRO FOR
	OPERATION WITH YOUR FM TRANSMITTER
	1.	Designed for the utmost in reliability and compatibility, the new series of receivers from
		FMA Direct are the first to incorporate user-programmable FM shift compatibility with
		any standard FM/PPM transmitter currently being sold. User programmable through
		a series of 5 dip switches, the same receiver can now operate with positive or
		negative FM shift transmitters. So if you have a Futaba and a JR transmitter with you
		at the field on different R/C channels, and one channel is already in use, you can
		simply plug in the correct receiver crystal, change the settings of the dip switches
		using a small screw driver and you’re ready to fly!
	2.	In general, 72 MHz Fortress micro series receivers are shipped compatible with
		“negative”, Futaba type frequency modulation (FM) - also termed “high-going-low”

receivers are compatible with all Futaba, JR, Hitec

servos, Airtronics servos equipped with the new “Z TYPE” connectors, as well as other brands that use

standard polarity

(GROUND, PLUS,

SIGNAL). Fortress micro series receivers are not compatible with “OLD STYLE” Airtronics connectors that use reverse power polarity (PLUS, GROUND, SIGNAL). See warning below.

SERVO BRAND	1	2	3
FUTABA	BLK	RED	WHT
JR	BRN	RED	ORG
HITEC	BLK	RED	YLW

Figure 1

		modulation. JR and Airtronics transmitters incorporate “positive” or “low-going-high”
		frequency modulation. At Ham band (50 and 53 MHz), all current R/C transmitters
		incorporate “positive” modulation so, in general, Ham frequency Fortress micro series
		receivers are shipped compatible with “positive” modulation. If you are using JR or
		Airtronics equipment on 72 MHz, you may need to adjust the DIP switch settings on
		the Fortress micro before the receiver will “listen” to your transmitter.
	3.	In order to program the Fortress micro receiver to a different FM shift, refer to the
		Programming Quick Reference included with your receiver. The DIP switches are
		located on the top of the P.C. board. Each switch is labeled 1, 2, 3, 4, 5 and the word
		ON is identified on the other side of the switch array. You may need to make a small
		slit in the top of the clear heat shrink case directly over the switch array to permit
		access to the individual switches. Use a small jeweler type flat screw driver to change
		the switches from one state to another. On the Programming Quick Reference,
		identify your transmitter brand and the frequency band of the transmitter/receiver
		combination (i.e. 72, 53, 50 MHz) on which you fly. Correlate this information to the
		proper diagram and set the DIP switches at the positions shown. There are only two
		settings which work. If one setting doesn’t work, the other one will.
•	INSTALLATION, POWER AND SERVO CONNECTION
	1.	Care must be taken when installing your receiver to isolate the electronics from
		vibration. Do this by wrapping the receiver in 3/8” thick foam rubber. Restrain the
		foam-packed receiver using Velcro or a rubber band if necessary.
		NOTE: FAILURE TO USE FOAM RUBBER AS DESCRIBED ABOVE DURING
	2.	INSTALLATION VOIDS PRODUCT WARRANTY.
		Extend the antenna to its full length. Do not coil the antenna up or range will be
		shortened. If you are installing the Fortress micro in a small aircraft and you require a
		shorter antenna, you may cut off a portion of the 39.75” antenna without de-tuning the
		receiver; a unique feature of FMA Direct receivers. Reducing antenna length will
		reduce range, however. Proceed carefully, removing only a short amount at a time

WARNING: IF YOU INTEND TO INTERFACE AIRTRONICS SERVOS THAT USE “OLD STYLE” (PRE-“Z TYPE”) AIRTRONICS CONNECTORS TO THE FORTRESS MICRO, YOU MUST UPDATE THE CONNECTOR TO THE CURRENT INDUSTRY STANDARD POLARITY (SEE FIGURE 1) AND PROPER INDUSTRY STANDARD SHELL THICKNESS. YOU MAY READILY CONVERT YOUR EXISTING “OLD STYLE” AIRTRONICS CONNECTORS TO CURRENT STANDARDS 1) BY INSTALLING APPROPRIATE ADAPTERS OR 2) BY REMOVING THE OLD CONNECTORS AND PINS AND REPLACING THEM WITH FMA PART NUMBER SEASSYJ. EACH SEASSYJ CONTAINS ONE JR COMPATIBLE MALE SHELL AND 3 FEMALE PINS. YOU WILL NEED TO CRIMP THE PINS AND SOLDER THEM TO THE WIRES OF YOUR EXISTING SERVO AND PLUG THEM INTO THE SHELL PROVIDED. MAKE CERTAIN THAT THE RED WIRE (+V) GOES TO THE CENTER PIN AS ILLUSTRATED IN FIGURE 1. FMA WILL NOT ACCEPT RESPONSIBILITY FOR ANY ATTEMPT TO USE “OLD STYLE” AIRTRONICS CONNECTORS THAT DO NOT HAVE THE POLARITY CHANGED TO INDUSTRY STANDARDS.

4.When hooking up servos to your receiver, use TABLE 1 and FIGURE 1 to check its plug wire color orientation. Note: with the receiver sitting label side up, the signal lead (marked #3 in FIGURE 1 and color coded as in TABLE 1) must match up to the pin closest to the label side of the receiver. No damage will occur by plugging a servo in backwards (reversing shell 180°), but the servo will not operate. Your Fortress