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RT Plus
The RT Plus is designed around the reliable 1/3N lithium battery which gives it it's unique shape and size. With its longer battery life and powerful signal, it was developed to be a primary leg mount for larger shortwings and longwings (18oz birds and up). The RT+ was the first of a new generation of transmitters with a short, safe, half-length antenna, yet still puts out more power than others still using long ones. It is also ideal as a secondary (backup) transmitter to the PowerMax tail mount. Features are now found in the RT+ never before available in a falconry transmitter (see link below).

Each unit is burned-in and Enviro-tested tested from +150F down to -40F prior to shipping. Thousands of this newest design are now in the field worldwide with enthusiastic and reliable results.

Micro
This tiny transmitter is the "Ideal Tail Mount" for all sized birds. It weighs only 3.5 grams with the battery yet is a high-power, long range design putting 1/3 the weight on a single tail feather.

Unlike other transmitters using very small batteries, the new Micro doesn't fade out or die in low temperature situations.
It is perfect for small specialty birds: Merlins, sharp-shinned hawks and other extremely small raptors. You can order it with a 'fine' or a 'medium' gauge antenna, depending on intended use.
The Micro also contains the magnetic 'tap on/tap off' switch, a half-length 7-inch antenna with improved power and efficiency over the old Micro. Each unit is burned in for five days and Enviro-tested tested from +150F down to -40F prior to shipping.

2007 Scout
The Scout transmitter is designed for use with the larger hawks, such as Redtails, Goshawks and Harris' Hawks. It' key features are it's low price and long battery life:

- Runs forty days on a single battery
- Forty miles line-of-sight range
- weighs only 9 grams
- uses a short 7-inch antenna
- all at the lowest price possible

Transmitters At a Glance


Std Duty Cycle	30ms, 95ppm	60ms, 48ppm	60ms, 56ppm	30ms, 40ppm	40ms, 40ppm
Weight (incl. battery)	8.1 grams (leg), 8.4 grams (tail)	7 grams	8.9 grams (tail)	3.5 grams	9.0 grams (leg), 9.5 grams (tail)
Batteries Used	One 1/3N Lithium 3v	One 1632 Lithium 3v	One 1/3N Lithium 3v	One 1225 Lithium 3v	One 2032 Lithium 3v
Battery Life	Approx 15 days (continuous)	Approx 9 days (continuous)	Approx 10 days (continuous)	Approx 5 days (continuous)	Approx 40 days (continuous)
Power Relative to original RT	+6db	+8db	+11db	+2db	+4db
Mounting Method	Leg, tail, neck, or BackPack	Tail-mount or BackPack only	Tail-mount or BackPack only	Leg, tail, neck, or BackPack	Leg, tail, neck, or Backpack
Antenna Length	7 7/8 inches	9.5 inches	13 inches	7.25 tail 9 inches leg	7.0 inches
Warranty	Three Years	Three Years	Three Years	Three Years	One Year
Magnetic Switch	Yes	Yes	Optional	Yes	Optional
Low Battery Warning	Yes	Yes	Yes	Timer only	Yes

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Field Marshall 1000 Tracking Receiver
Introducing the FM1000 for the 2007 Season and beyond. Now with 1,000 channels, this new Field Marshall can track any frequency within one entire band.

But there's more: Inside, the FM1000 offers improved sensitivity (now equal to the Stealth), better sound (with 3 speakers top and bottom), a new ultra-compact case design featuring a "Quick-Release" handle, improved LED front lighting of the control panel for night tracking, improved water resistance for use in wet weather, and the latest generation of Marshall's exclusive collapsible yagi antenna now with cable-free operation.

Also, exclusive to the Field Marshall 1000 is the addition of poyphase filters, our new noise floor reduction technology that reduces the background noise while increasing the effective range and tracking ease.

Available in 173 MHz, 216-219 MHz, and 233-236MHz.


Number of Channels	Five, ten or fifteen channels of ten KHz each.	1000 or 4000 (1 band or 4 band)	100 channels of ten KHz each
Weight (with batteries): - receiver only - receiver with antenna - receiver with antenna and handle	1.18 lbs (535 g) 2.02 lbs (916g) 2.20 lbs (998g)	1.35 lbs (535 g) 2.1 lbs (916g) 2.30 lbs (998g)	1.29 lbs (3kg) 2.12 lbs (3kg) 2.31 lbs (3kg)
Dimensions of receiver case	6.9" x 3.4" x 1.6" LxWxH	6.9" x 2.8 " x 1.3" sloping to 1.6 at control panel LxWxH	9.3" x 3.4" x 1.1" sloping to 2.3" at control panel LxWxH
Measurement of top mounted collapsible 3-element yagi	12 inches long when fully collapsed, 18 by 18 when open for use.	12 inches long when fully collapsed, 18 by 18 when open for use.	12 inches long when fully collapsed, 18 by 18 when open for use.
Antenna mount	Three phillips screws	Two phillips screws	Quick release sliding bracket with thumb accuated set screw
Auto-tune memory	No	Direct frequency key in.	Yes
Trigger switch for power save	Optional	No	Yes
Attenuator switch	Near/Medium/Far	Near/Medium/Far	Near/Far
Balance	Center of gravity at top of the hand with antenna deployed	Center of gravity at top of the hand with antenna deployed	Center of gravity at top of the hand with antenna deployed
Sensitivity	-149db	-151db	-151db
Batteries used	Two 9v Alkaline or Lithium	Six AAA Alkaline or Lithium	Two 9v Alkaline or Lithium
Quick Release Detachable Handle	No	Yes	No
Speakers Number ( Location)	One (front panel)	Three (2 Top, 1 bottom)	One (front panel)
Front Lit Control Panel	Yes	Yes	Yes
External Power Jack	Yes	Yes	Yes
Earphone Jack	Yes	Yes	Yes

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Premium Cordura Field Holster
Specially commissioned for Marshall Radio by respected Czech designer Stanislav Menclik, these all new padded holsters can be worn over the shoulder or around the waist. An external zip up pouch holds transmitters & batteries. Snap on top is now clam shell design to cover the entire top and protect the receiver in bad weather. New wider shoulder strap unsnaps at either end with one hand.

Marshall Aluminum Tail-Pieces

These are the new generation, ultra-lightweight, solder-free, tail-mount pieces that are now used by so many falconers world-wide. Machined in-house here at Marshall Radio from a special aircraft aluminum alloy, then anodized for color and protection, they are 1/3 the weight of the soldered brass predecessor.

If you're planning to use a Tail Mount this season, these tiny, lightweight machined parts are the answer for exactness and quality. And, using the Genuine Marshall Installation tool (shown below), the installation is quick and easy.
There are five sizes to fit most all birds:

Small: Sharpshin, Merlin with Micro Transmitters
Medium: Gyrkin, Peregrine, Harris', Male Goshawks
Micro/medium: Medium sized birds where a Micro is to be used. So, medium on the bottom, with Micro size on the top.
Large: Female Gos, Female Gyrfalcon
Xxtra Large: Eagles

TrackPack Mounting System

This is the 'ready-to-go kit' for the BackPack mounting method you've been hearing about this season. Starting with a gently curved Mounting Plate machined from UV-protected Delrin plastic, we add 36 inches of small width Teflon tubular ribbon and a small brass crimping ring produced just for this purpose that's internally threaded for maximum bite into the ribbon when making the final setting.

Simply use either flat needle-nose pliers or your existing MRT Tail-piece crimping tool to set the ring in place once the harness is correctly fitted.
There are now three sizes: Regular size accomodates all transmitters, the Micro size for very small birds that fits only the Micro transmitter, and the new XL (Eagle) size with 18 more inches of ribbon.
Also available is the Re-Installation Kit, containing 36 inches of Teflon ribbon and the threaded crimping ring. Choose one of these items from the drop-down list after clicking on the 'add to cart' button below.

Marshall Tail-Piece Installation Tool

Machined in-house to exacting tolerances, the tail-piece tool makes the process of mounting up your bird quick and easy. Designed to match exactly the elliptical shape of the quill when closed, the final result when crimping is a snug fit. It's also self-centering in the upright position on the feather. With the internal grooves machined on the inside of the crimped end, they are used by many without glue or epoxy. Clean yet permanent.

Omni Directional Whip Antenna

Falconers have used OMNI's for many years to determine proximity from inside a moving car as they cover an area tracking their birds. This model is a higher quality (slightly more gain) version of the well known design. Comes with 10 foot coax cable.

Cigarette Lighter Adapter

This small accessory inserts into any car plug and runs the receiver while bypassing (saving) the internal batteries. An important item when on extended chases in the car with the receiver hooked up to the OMNI.

Volume Prices on Batteries

Transmitter and reciver Batteries

Spare Antenna

A straight antenna is important to the process of producing a strong signal. If your antennas are kinked, curled and have been straightened out for the last time, you might consider getting a new one to maintain peak performance. Field replaceable antennas screw directly on to the transmitter antenna stud.
RT+ and PowerMax use a 2-56 threaded 6061 aluminum ferrule with 90 lb test nylon coated stainless steel cable. The 2005 Micro uses a 0-80 thread aluminum ferrule, and comes in two gauges (comes with light, but can use regular for larger birds).

Replacement lids for Transmitters

Although designed to last forever, from time to time you may find you need a replacement lid for your transmitter. The replacement lid for the BP can also be laser engraved with REWARD or a phone number for an extra $10.

Tail Springs

Posts on the underside of the transmitter case allow you to easily change a damaged tail spring wire if needed. One replacement spring design fits the BP and PowerMax. Replacement springs for the RT+ require a tiny washer. Springs for the Micro are much lighter gauge. Simply specify which one when you order.
Copies of our design (shown to the left) have been sold in the market recently, but genuine Marshall springs are made from heat treated stainless steel to exact measurements that fit the tail-pieces precisely.

Hand Held Collapsible Yagi Antenna

Now you can have the next best thing to a Marshall receiver in terms of portability: our patent-pending collapsible yagi antenna.
Folding down into a compact size for the best portability, it then opens up in seconds to a full-sized three element yagi array. BNC adaptor cable plugs in to your existing box-style receiver.
Rugged design proven and fine-tuned over 6 years with thousands in the field. No more wing nuts.
Hand-held antenna works for 215 MHz to 220 MHz.

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