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VK7AX > UIDIGI 09.04.05 05:10l 152 Lines 4480 Bytes #999 (0) @ VKNET
BID : VK7AX-0904XH
Read: GUEST
Subj: [Ui-Digi] Digest #466
Path: ON0AR<ON0AR<7M3TJZ<SP7MGD<VK7AX
Sent: 050409/0442z @:VK7AX.#ULV.TAS.AUS.OC [NWTNOS-NWTas] #:33515 $:VK7AX-0904X
Date: 8 Apr 2005 12:24:23 -0000
From: uidigi@yahoogroups.com
To: uidigi@yahoogroups.com
Subject: [uidigi] Digest Number 466
There are 2 messages in this issue.
Topics in this digest:
1. MFJ-1270B parameters
From: "James Fuller \(N7VR\)" <n7vr@fuller.net>
2. Re: MFJ-1270B parameters
From: Ted Maczulat <tmaczulat@shaw.ca>
________________________________________________________________________
________________________________________________________________________
Message: 1
Date: Thu, 7 Apr 2005 09:34:10 -0600
From: "James Fuller \(N7VR\)" <n7vr@fuller.net>
Subject: MFJ-1270B parameters
Hi Glenn,
The MFJ 1270 B has a small battery in it.
Make sure the battery is good and the jumper is in position to make it active.
The battery normally will last a few years:)
Saves lots of trips to the site.
Jim Fuller
AAR8NY - ARMY MARS
N7VR - http://www.fuller.net/n7vr.html
ARRL Montana Section Emergency Coordinator - http://www.mtares.org
International TCP/IP Gateways Robot Operator -- http://www.ampr-gateways.org
montana.aprs2.net Server Operator -- http://www.mtaprs.net
>
> Message: 1
> Date: Wed, 06 Apr 2005 14:21:59 -0500
> From: Glenn Wiebe <gswiebe@mb.sympatico.ca>
> Subject: MFJ-1270B parameters
>
> Thank you to all those who responded, I haven't decided which
> way to go yet.
>
> 73 de Glenn...VE4GN
>
> >After a power bump the parms revert to those burned into
> the eeprom which means >that they have to changed remotely
> in our groups case. It is not a really big >deal but still a
> bit of a PITA. If the outage occurred at the digi location
> but >not at a members shack it could go unnoticed. Outside
> of getting another eeprom >burned or a standby power supply,
> is there another way of getting around this >problem?
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Message: 2
Date: Thu, 07 Apr 2005 22:27:36 -0700
From: Ted Maczulat <tmaczulat@shaw.ca>
Subject: Re: MFJ-1270B parameters
below is the content of a post to this group back in December of 2004
The UIDIGI code is not real happy with the battery in place.
Take the time to put all of the correct parameters into the EPROM.
Ted, VE7TFM
IRLP Node 1120
----- Original Message -----
From: John Langtry, VE3NEC
To: uidigi@yahoogroups.com
Sent: Tuesday, December 28, 2004 7:01 PM
Subject: Re: [uidigi] Re: backup battery
Hi Chris & all,
Yes that was I who made that comment about the battery,
after speaking with Marco on how the code lays out its
buffers and pointers.
In the MFJ-1270x I believe it can be done by just opening
JMP 5. But why leave an unused battery in there, which could
potentially leak ? Pitch the battery, in accordance with
your state or local laws.
Why ? (Worst case), the hydro "bumps" and the battery is still
in there. Now the RAM will contain all kinds of backed up
garbage and bad pointers. Remember, that with the UIDIGI code
*all* of your parameters are stored (or should be) in the EPROM.
If there's no battery, the TNC comes back up and has clean RAM
to run in, and life carries on and all is well.
If the battery is in there, then the code will be struggling
with trying to allocate buffers, and reset useless pointers,
generally failing, and the darn thing does not come back on
line. (This is directly proportional to how far it is that
you have to drive to get to the digipeater, and how nasty
the weather is !)
Do yourself, and your digipeater a favour and "loose" the
battery !
vy 73 de John VE3NEC
905-877-7886
IRLP node 2200
----- Original Message -----
From: Glenn Wiebe
To: uidigi@yahoogroups.com
Sent: Monday, April 04, 2005 2:05 PM
Subject: [uidigi] MFJ-1270B parameters
After a power bump the parms revert to those burned into the eeprom which means
that they have to changed remotely in our groups case. It is not a really big
deal but still a bit of a PITA. If the outage occurred at the digi location but
not at a members shack it could go unnoticed. Outside of getting another eeprom
burned or a standby power supply, is there another way of getting around this
problem?
Thanks
73 de Glenn...VE4GN
________________________________________________________________________
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End Ui-Digi Digest #466
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