[Dstar] IC-91AD not transmitting while on the charger???!!!

[Dennis Rogers]

This is good to know that the protection circuit is in the IC-91AD. This is
good.

My T90A Icom will not work with the rapid charger or wall wart charger for
high power transmit.
The manual WARNS of this type of operation.

I believe this is true with the IC-91AD. I do not have the manual close by
to check, but I believe I read
this to be true. Look in the area about charging/dc operations.

Dennis

On Fri, Aug 29, 2008 at 6:12 AM, vk2vvv <VK2VVV at digidata.com.au> wrote:

> Hi Susan,
>
> My assumption was  that the charging circuit is disabling the battery from
> the radio during the charging cycle.  Hence low current available from the
> plug pack during the TX operation.  But on checking the specifications
> stated by Icom
> Quote
> "An external DC power jack allows for the operation with an external DC
> power supply."  ---  "When used with the CP-19R or OPC-254L, simultaneous
> operation during charging is possible."
> So my assumption is probabily incorrect.   I can't put my hands on a
> schematic right now, and I run an 2820H and ID-1, so I am not an expert on
> 91AD's.
>
> I suppose these type of unfounded reply aren't really constructive, but
> .......
>
> If you don't have an answer by tomorrow, I'll drop by a friend with an 91AD
> and see if the same thing happens with them.
>
>
>
>
> Cheers
> Ross
> VK2VVV
>
>
>
> ----- Original Message ----- From: "Susan Mackay" <
> susanmackay at optusnet.com.au>
> To: <dstar at lists.wia.org.au>
> Sent: Friday, August 29, 2008 8:23 PM
> Subject: [Dstar] IC-91AD not transmitting while on the charger???!!!
>
>
>  I have a 91AD (and very happy with it) but I'm not sure if what I am
>> experiencing is normal or a fault in my unit.
>>
>> I can trigger the local repeater on both high and low power from my  home.
>> However, when I plug in the battery charger (the standard one  supplied with
>> the unit by Icom) the transmitted power seems to drop to  almost nothing.
>>
>> Using a (admittedly somewhat unproven) field strength meter, without  the
>> battery charger I get a significant (about half scale) deflection  on high
>> power and a slight but noticeable deflection on low power.  With the battery
>> charger in I get a minor deflection on high power and  nothing on low power.
>>
>> This is not scientific I know, but is this a 'known' situation with  the
>> 91ADs, or a known failure mode or am I just unlucky?
>>
>> Thanks for any information
>>
>> Susan VK3ANZ
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-- 
Regards,

Dennis, N5VRP
n5vrp.satx at gmail.com

Dstar User / Gateway Admin / D-PRS Provider
ARRL Member
Cactus-Intertie Member
AMSAT Member, President's Club

73's from SATX, EL09rk
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