[aprssig] RC-D710 APRS display head on an old IC-2AT HT

[Ronny Julian]

How much is a 710 head and can you buy them  separate with remote 
brackets?  Neat!
 
Ronny K4RJJ

Robert Bruninga wrote:
> Its done!
>
> The D710 Display Head works on an old $88 Alinco HT!  See
> photos:
> http://www.aprs.org/D710-HT.html
>
> With 1000 mAH nicads it will run about 3 hours.
> Ill bring it to DCC.
>
> Bob, WB4APR
>
>
>   
>> -----Original Message-----
>> From: aprssig-bounces at lists.tapr.org 
>> [mailto:aprssig-bounces at lists.tapr.org] On Behalf Of Robert
>>     
> Bruninga
>   
>> Sent: Wednesday, September 24, 2008 6:47 PM
>> To: 'Stephen H. Smith'; 'TAPR APRS Mailing List'
>> Subject: Re: [aprssig] RC-D710 APRS display head on an old
>>     
> IC-2AT HT
>   
>>> 1)   What is this diagram trying to say? 
>>>       
>> Sorry, I had the PG-5J mini-din on there just so I could see
>> what I was doing in tracing out the same signals as they
>>     
> appear
>   
>> on the RJ-45 that goes to the RC-D710 Display Head.  Now that
>> they are traced, I don't need the PG-5J and can just interface
>> the D710 Display Head to the HT via only the RJ-45 and a clean
>> source of 9-11 VDC.
>>
>>     
>>> Does the D710 head have a 6-pin Mini-DIN 
>>> connector on it?  Or is it the RJ-45 plug?  
>>>       
>> It's the RJ-45 is all you need.
>>
>>     
>>> (The Mini-DIN pinout looks like the standard 
>>> used on many Kenwood/Icom/Yaesu radios with 
>>> the mini-DIN "packet/data" connector on them.)     
>>>       
>> Yes, that is why you can plug the RC-D710 APRS display head
>>     
> into
>   
>> ANY such modern radio and get the full D710 APRS display
>> functionality on any radio.
>>
>>     
>>> Does this mean a standard mini-DIn-6-to
>>> mini-Din-6 KVM cable will connect the radio 
>>> TX/RX/DCD/PTT signals (but not DC power) to 
>>> the head ?
>>>       
>> Yes, and that is all the $80 PG-5J interface is, a connector
>>     
> box
>   
>> and a 10V regulator.
>>
>>     
>>>> Wow, a handheld D710.
>>>>
>>>> I just noticed that the RC-D710 APRS display head has a
>>>>         
> spec
>   
>>>> voltage of 9 to 11 volts.  Since 8 nicads would give 8.8
>>>>         
> to
>   
>> 11.2
>>     
>>>> volts, I think I will give it a try.
>>>>
>>>> 8 NiCd's taped to the back of the Display Head, will let
>>>>         
> me
>   
>> use
>>     
>>>> it with any HT (without having to purchase the $80 PG-5J
>>>> interface which contains the 10 volt regulator) Maybe.
>>>>
>>>> Anyone done this?  Here is my schematic I am working on:
>>>>
>>>> www.ew.usna.edu/~bruninga/aprs/RC-D710-connx-pwr.GIF
>>>>
>>>> Bob, WB4APR
>>>>         
>>>
>>>
>>> --
>>>
>>> Stephen H. Smith    wa8lmf (at) aol.com
>>> EchoLink Node:      14400    [Think bottom of the 2M band]
>>> Home Page:          http://wa8lmf.com  --OR--
>>>       
>> http://wa8lmf.net
>>     
>>> World Digipeater Map
>>>   http://wa8lmf.net/APRSmaps
>>>
>>> JavAPRS Filter Port 14580 Guide
>>>   http://wa8lmf.net/aprs/JAVaprsFilters.htm
>>>
>>> "APRS 101"  Explanation of APRS Path Selection & Digipeating
>>>   http://wa8lmf.net/DigiPaths
>>>
>>> Updated "Rev H" APRS            http://wa8lmf.net/aprs
>>> Symbols Set for UI-View,
>>> UIpoint and APRSplus:
>>>
>>>
>>>
>>>
>>>
>>>
>>>       
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>>     
>
>
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