AvMap Geosat 5 APRS Manual do Utilizador descarregar pdf

APRS UPDATE. The Kenwood D710 is the

follow on from the D700 that Kenwood

designed over eight years ago. Like the D700,

it’s a dual band radio with up to 50W on 2m

and now 50W on 70cm. The receiver covers

118 – 524 and 800 – 1300MHz. With a

built in TNC it is ‘out of the box’ APRS ready.

The radio itself was reviewed in the November

2007 issue of RadCom, although the APRS

side of the radio wasn’t dealt with in depth.

For those not familiar with APRS

(Automatic Packet Reporting System) it

was original developed by Bob Bruninga,

WB4APR, as a method of exchanging local

tactical information. This not only includes

positional information but the ability to send

messages, bulletins, announcements and

alerts. This information is relayed by a

number of ‘digipeaters’ (a station that relays

APRS packets) and ‘Igates’ that not only relay

the packet over RF but uploads it to the APRS

network on the internet. If you have a look on

http://aprs.fi/ you can see how active APRS is

in your area.

The radio comes in two parts, the main

unit and a remote head. With modern cars

this makes it a lot easier to find somewhere to

place the radio where you can see it. The

backlight of the display can be programmed

to orange or green. Another really nice feature

is the display changes colour when you

receive a message over APRS.

APRS. The programmable memories have

been increased from 200 on the D700 to

1000 on the D710, allowing for split

frequencies, tone, CTCSS & DCS and can be

individually name tagged and grouped if

needed. It also has six Programmable

Memories (PM) that store virtually all the

settings of the radio, which are recalled with

two button presses. If there is more than one

licensed operator in your family, you could

easily program your APRS callsign under one

and theirs under another. With a two button

press you can swap between them depending

on who is driving the car that day. The radio

comes with a DTMF microphone that can be

used for Echolink or APRS messaging and is

backlit for night time use.

For me, the main feature of this radio is the

APRS. Set the left had side to 144.800 (UK

APRS frequency) and use the right hand side

for QSOs. If you are mobile, connect a

compatible GPS unit into the side of the head

unit and you have the ability to send you

position, speed and altitude over APRS. You

can also program it to send out the frequency

you are on so others will know where to find

you. There is even a ‘tune’ button that takes

you to the frequency of other D710 users or

local repeaters. The radio can hold 100

messages and remember 100 stations,

recalling their direction and distance. If it’s

another mobile station, you can see course,

speed and altitude; if it is a weather

station you get a display showing, rainfall,

temperature, wind direction, wind speed, air

pressure and humidity. For home use you can

even plug in certain weather stations and

send weather data over APRS.

Because Kenwood designed the radio with

upgradeable software (latest firmware 2.0),

they have introduced smart beaconing.

Before, you would beacon at a fixed rate,

whether you were standing still or doing

60mph. With smart beaconing, it will now

send out your position based on your speed.

It can be programmed so that it will only

beacon every 15 minutes if you are stationary

and every minute if you are doing 60.

PROGRAMMING. The D700 was very

versatile but Kenwood have gone up a level

with the D710. The radio is a good dual band

radio, but if you want a two way APRS mobile

solution I don’t think you will be disappointed.

The radio is so versatile there can be a lot to

program but, with the aid of a PC, this can be

done in the comfort of your own home. If you

are not feeling brave you can always find

someone else at your local club who has

already done all this and I’m sure they will

either let you have their settings file or even

program it for you.

The only thing missing with the D710

was a map display that you can get on some

of the more expensive GPS units. This is

where the AvMap Ltd Geosat 5 Blu sat nav

unit comes into its own. It’s a car navigation

system that will display APRS stations on

the screen at the same time, coupled with

hands free Bluetooth.

IN USE. After opening the box, I was

presented with the main unit, a mounting

bracket that fitted on the window, two

manuals, a CD and four leads. This meant

a quick read of the manual and 5 minutes

to decide where the bracket should go. As

I’m left handed, the middle of the car is

always a good choice; for right handed

people the right would seem the best idea.

The bracket took a little fiddling about to get

it positioned just perfectly but, once done,

it was within easy view and reach, thanks

to the extending bracket.

Then it was back to the manual to find out

how to set it up with the Kenwood D710.

Nothing in the manual, maybe the other

EQUIPMENT REVIEW JAMES BANHAM, M0UKS ♦ E-MAIL: [email protected]

Kenwood D710 and

AvMap Geosat 5 Blu

Amateur radio, APRS and satnav converge!

FEBRUARY 2009 ♦ RADCOM

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Kenwood D710 and 1
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APRS UPDATE. The Kenwood D710 is thefollow on from the D700 that Kenwooddesigned over eight years ago. Like the D700,it’s a dual band radio with up to

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manual? No, that’s for the Bluetoothfunctions. I looked back in the box in case I had missed a piece of paper and the onlything I could see was the CD