Ron, et al,
A corollary of Kirchhoff's law says that all currents are equal in a
series circuit and all voltages are equal in a parallel circuit. Tapping a
load across the lower battery represents a parallel circuit of the bottom
battery and the load (radio) using 12 volts, and this
At 3/28/2008 12:07, you wrote:
If we were muting DTMF, we'd have had no idea why he was complaining.
If DTMF mute is on tones are being muted, they must not be too bad.
One system I maintain has ADMs set to a bit longer than the DTMF detect
time, the DTMF mute delay is set to the same time,
Actually, I wouldn't be too concerned about the condition of the rest
of the station. As stated earlier, the channel elements are often
removed to prevent operation on the previous user's channel. Not a
big deal. The cards are often kept as spares, particularly if the
station was disposed of
Tom,
Some good points. Hard to beat a Micor. If many repeater builders really knew
much they would be using the Micor or the like instead of the plug and easy way
out.
I like the Kensu. Thought would add something.
How about Kensucom, hi.
73, ron, n9ee/r
From: tallinson2 [EMAIL
Al,
Your point is well taken and I understood this. However, for the most part a
rig is not going to be drawing much current, in receive most of the time.
Little affect on the charge/discharge of the lower battery. This is why in a
previous post I said depends on the load if wanting to
Nate,
I've been designing 8870s and 8880s in things for over 15 years. Good chip and
it has lasted.
Pin 3 is simply the output of the internal op-amp and using a feed back
resistor to 2 and driving with another one can set the AC gain over a wide
range. The gain is feedback/driving resistor
Vern,
Yep you got a Micor...a mobile repackaged as a base station.
Might look at the PA. The more transistors the higher the power. The PA came
in 45/60/110 W. However, in this configuration if using for repeater turn down
to maybe 50% rated power out. This is adjusted with a pot in the
Actually, I wouldn't be too concerned about the condition of the rest
of the station.
You might not be, and I would not be concerned if I had the station or was
considering it. I do not know what the original poster's level of
experience is, thus my comment. If I was looking at this
Milt,
Very good advice.
I would not even try to move the unit down with the existing boards if they are
the higher split. If going to 222 then would be something to start with.
If putting on 2 meters would be nice to pick up a mobile for 136-150 range and
simple unplug the boards...well
Ron and All,
EZGO Golf Carts do this all the time with there electric golf carts, they
tie the tail lights and head light if any to the lower two 6 volt set of
batteries. I admit it is not the best way to go about it but it seems to
work, as Ron said, it depends on the load and in the case of
The reason the power supply leads are missing is that I
got it from the local used supply store. They had taken
every thing out of the cabinet and were going to sell the
cabinet and power supply seperate and probably throw the
rest out.
Vern
On Sat, 29 Mar 2008 06:43:36 -
tallinson2
I wouldn't mind having it on 220 if nothing else then for
the learning experiance of doing it.
Vern
On Sat, 29 Mar 2008 07:25:10 -0500 (CDT)
Ron Wright [EMAIL PROTECTED] wrote:
Milt,
Very good advice.
I would not even try to move the unit down with the
existing boards if they are the
Vern,
There are basically 2 power leads from the power supply. 1 is a multi-wire
cable that plugs into the card cage usually and the other is a large, #12, two
wire that goes from the heavy terminal on the rear of the supply to the main
chassis set of terminals, usually in the upper right.
Classification: UNCLASSIFIED
Caveats: NONE
Anyone have this datasheet? It is a UHF mixer SOT-6
My military internet here really freaking sucks and doesn't like to load
pages...
Thanks,
~Benjamin, KB9LFZ
Classification: UNCLASSIFIED
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