McMartin TR-55D FM SCA Multiplex Tuner

Specifications:

• Antenna Input: 50/72 Ohm unbalanced
• Sensitivity: 1µV for 30 dB quieting , 3 µV for 50 dB quieting
• Dynamic Range: Typically 100 dB 
• Selectivity: 60 dB alternate channel 
• Complete Limiting: 1.5µV 
• Capture Ratio: Better than 1.5 dB 
• Distortion Less than 0.2% 
• AM Rejection: Typically 60 dB or greater
• AGC Range (typical) : 55 dB
• Audio Output: 0.5 Ohm RMS, 100K Ohm unbalanced
• Frequency: 67 kHz (others available on special order)
• Deviation: ±6 kHz deviation standard 

The TR -55D is a fixed frequency, crystal controlled superheterodyne receiver feeding a newly designed McMartin PTD (Precise Tracking Decoder). The PTD will "lock -on" and accurately recover the composite main and SCA signlas identical to those originally transmitted.

The front end of the TR -55D is crystal controlled and utilizes a diode protected dual gate D -MOS field effect RF amplifier with a noise figure of 1.5 dB or better at 100 MHz. This device is capable of 55 dB linear gain reduction versus typical 30 -35 dB in earlier MOSFET type circuits resulting in an overall dynamic range of over 100 dB. The input and output impedances remain constant, preventing any detuning of the high "Q" RF circuits. Three high "Q" tuned circuits and a dual gate MOS -FET mixer greatly enhances the dynamic range over conventional bipolar mixers.

.

Condition:

• AS IS Government surplus item. 
• Photos represent the exact item that will be shipped. Please refer the photos.

---

Shipping Policies

• We take great care in packaging every item to ensure safe & quality shipping.
• We ship UPS/USPS/FedEx/DHL depending on your location and at our discretion.
• Most shipments are sent out within 1-2 business day after payment is confirmed or cleared, unless stated otherwise in the listing.
• Please make sure to provide the correct shipping address when placing your order, orders can only be shipped out to the confirmed shipping address provided by eBay.
• Packages are not shipped on Sunday. As transit time varies by carrier, we are unable to control delays caused by carriers.
• Shipping time provided by eBay is an estimation and is not guaranteed. It is also subject to change during peak periods.
• Buyers are responsible for complying with all import and export obligations and for payment of all applicable duties and custom fees.
• Orders shipping to Hawaii, Puerto Rico, Guam or Alaska may not select the Free Shipping option for this item, if free shipping is selected for one of these destinations, we reserve the right to cancel your order.

Return Policies

• Items must be returned in the original manufacturer's packaging. We strongly recommend you keep your packaging for at least the first 30 days after purchase.
• We offer a 30 day return policy on all items. (unless stated otherwise in the listing).
• Video games must be returned unopened. If the item is defective, it can be returned within 15 days with a receipt and the original packaging.
• Defective items may only be exchanged for the same title.
• All returns must be in original condition and must include the original packaging and content intact.
• Returns must be packed in proper packaging to avoid damage to the item or its original packaging.
• For any return requests please contact us to receive a RMA number and return instructions.
• 10% - 20% restocking fee may apply.
• Please allow 3-5 business days after we receive your package to process your return.
• Any returns that violate this return policy will not be accepted and will be sent back at the customer's expense.

The following electronics items must be returned within 15 days of receipt:
Computers, Computer hardware, Printers (including 3D printers), 3D printing supplies and products, Camcorders, Digital cameras, GPS units, Digital music players, Tablets, E-readers, Portable video players, Drones, Video Game Consoles, Video Games.

Contact Us

• We take joy in helping you get the gear you want at the price you need.
• Please don't hesitate to contact us with any questions or concerns.
• You can contact us via eBay message.

Please note that some of the product descriptions are provided by manufacturers and may not represent the exact color, size or style of the actual item.