[OZAPRS] APRS Pocket Tracker for sale

[Andrew Rich]

Unfortunately the freq is a bit hard to change.

I have enquired about this subject. 145.175 MHz and 144.725 MHz are the
two
freq


See post:

Hey Andy,

You should know that the Control Voltage range in a Pocket Tracker is a
little less than 5 volts.  It runs from about 100 mV to about 4.8 volts.
The slope is 450 kHz per volt.  The two frequencies in your Pocket Tracker
are 450 kHz apart.  So long as the tuning by L3 stays in the middle of the
range you shouldn’t need to do any retuning when you move the FS jumper.
Ideally you’d tune for 2.5 + / - 0.2 volts when set to 144.95 MHz, but
there
’s no way to set it to 144.95 MHz.  So if you are tuning while set to
operate on 144.725, then you will want to tune L3 for a Control Voltage of
about 2.0 + / - 0.2 volts.  If tuning while operating on 145.175 MHz (the
FS
jumper in the “9” position – or not installed), then you will want to tune
L3 for a Control Voltage of about 3.0 + / - 0.2 volts.  I hope that makes
sense to you.  Since it’s working fine the tuning must be OK.  I wouldn’t
mess with it unless there’s a good reason.

Pocket Trackers work great on any kind of aircraft.  It doesn’t take much
altitude to make nearly everything “line-of-sight”.

Please let me know if I can ever offer any assistance.

Questions, comments, and suggestions are always welcome.

Keep on trackin’! ™

Best regards,

Tony – N7MTZ

HiValue Radio Inc.




-----------------------------------------
Andrew Rich
Amateur radio callsign VK4TEC
email: vk4tec at tech-software.net <mailto:vk4tec at tech-software.net>
web: http://www.tech-software.net
Brisbane AUSTRALIA



-----Original Message-----
From: Damien Gardner Jnr [mailto:rendrag at rendrag.net]
Sent: Wednesday, 6 September 2006 9:57 PM
To: vk4tec at tech-software.net; VK / ZL APRS Users
Subject: Re: [OZAPRS] APRS Pocket Tracker for sale


Sounds like exactly what I need on the bike...  Don't suppose making it
switchable between vic and national frequencies would be an easy mod? :)

Cheers,

Damien

----- Original Message -----
From: "Andrew Rich" <vk4tec at tech-software.net>
To: "ozaprs" <ozaprs at aprs.net.au>
Sent: Wednesday, September 06, 2006 8:55 PM
Subject: [OZAPRS] APRS Pocket Tracker for sale


>
http://cgi.ebay.com.au/ws/eBayISAPI.dll?ViewItem&ih=008&item=180025716237&
rd
> =1&sspagename=STRK%3AMESE%3AIT&rd=1
> -----------------------------------------
> Andrew Rich
> Amateur radio callsign VK4TEC
> email: vk4tec at tech-software.net
> web: http://www.tech-software.net
> Brisbane AUSTRALIA
>
> _______________________________________________
> Ozaprs mailing list
> Ozaprs at aprs.net.au
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