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

[vk2vvv]

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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