Elekitsorparts FUNtronics NPR-70 조립 설명서 - 페이지 2

{카테고리_이름} Elekitsorparts FUNtronics NPR-70에 대한 조립 설명서을 온라인으로 검색하거나 PDF를 다운로드하세요. Elekitsorparts FUNtronics NPR-70 18 페이지.

Elekitsorparts Store Item Name: NPR-70 Modem

 Description

Thank you for purchasing NPR-70 New Packet Radio modem. The NPR-70 modem was designed by the French Ham F4HDK

and posted on the hackaday website. This is a fully open source modem

New Packet Radio protocol. Through this protocol, the rate of bidirectional IP data transmission can go up to 500kps. This

baudrate is much better than the traditional old-fashioned Packet Radio protocol based on AX.25. Therefore, this Modem can be

a good choice for extending an existing 5.6GHz Hamnet, and can temporarily be used as an effective tool for accessing to DX

Summit and DX Spot information from outdoor. Authorized by the original author F4HDK, elekitsorparts.com is proud to

produce the NPR-70 modem kit. The following content is the assembly guide for this kit. For more information on the NPR-70

modem, please refer to the following website,

Our assembly guide will be divided into two major steps, each step is divided into a number of small sequences, each of which

has a detailed description on the parts needed and assembly guide. In order to ease the soldering difficulty, all of the SMD parts

except the RF4463F30 are factory assembled on the PCB. You just need to solder the Through Hole parts only. The first step is

to solder the through hole parts, while the second step is the guidance for installing the modem pcb into its enclosure.

NPR-70 v05 is an upgrade for NPR-70 v04, the v05 adds a spi-SRAM chip on board in order to improve the performance while

transmitting. In order to use the external SRAM, please keep the modem's firmware with the newest update.

 Before Assembling

Tools Required in Assembling Electronic Kits

You will need the following tools to build this kit:

Fine-tip temperature-controlled ESD-SAFE soldering station with 700 to 800°F tip (370-430°C). Recommend a spade tip

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no greater than 0.05" (1.3 mm) wide.

High wattage (approx.100 watt) soldering gun to solder the BNC connectors. Use this iron only where directed in the

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procedure. Use the temperature-controlled station for all other soldering.

IC-grade, small-diameter (.031") solder (Kester #44 or equivalent). Small diameter solder I is important to avoid filling

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adjacent solder pads and creating solder bridges.

• Small, #2 Phillips screwdriver.

• Needle-nose pliers.

• Small wrench or driver for 6-32 nut.

• Small-point diagonal cutters. Flush-cutting type required (Xcelite MS54-5J or equivalent).

Digital Multimeter (DMM) with voltage, resistance and diode-checking functions. A DMM with capacitance measurement

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capability is desirable, but not required.

• Magnifying visor or magnifying glass with a hands-free stand.

• Desoldering tools and supplies are invaluable. Narrow solder wick or a good vacuum desoldering tool such as the

Soldapullt® model DS017LS are recommended.

• Small, #2 (1.4 mm wide) blade screwdriver may be required.

We strongly recommend that you use a conductive wrist strap and anti-static mat while handling the MCU or the PC boards

with the MCU installed. Wrist straps and mats are available at very low cost from Jameco, Mouser, and other electronics

suppliers.

Item No.: H10015K

https://hackaday.io/project/164092

Document Type:Assembly Guide

both on hardware and software. NPR refers to the