Dave VanHorn wrote:
> Well, I have two of this TLD1694 with the SWA- lead, and the other one
> has a big sticker on it from months ago that says "UHF"
The 'D' in the number means VHF. 'E' in that position is UHF.
Also 'B' would be low band, and 'F' would be 800/900Mhz.
There is also a 'C' mid-ba
B 25-54 MHz
C 67-88 MHz
D 132-174 MHz
E 406-512 MHz
F 800/900 MHz
Neil - WA6KLA
Mike Morris wrote:
>
> At 03:39 PM 1/16/06, you wrote:
>
> > > Ahh... If it's the one with the SWA- lead, that is the VHF
> > > amplifier It won't work on UHF, even with the two watts
At 03:39 PM 1/16/06, you wrote:
> > Ahh... If it's the one with the SWA- lead, that is the VHF
> > amplifier It won't work on UHF, even with the two watts of
>drive.
> >
> >
> > Maybe mark the amplifiers with a marking pen so you don't get them
> > confused
>
>
>Well, I have two of
Dave VanHorn wrote:
>It's been one of THOSE days.
>
>One VHF at 30W, one at 18W, and the UHF at about 95W.
>Much improved picture.
>
Glad you have good results..
Kevin
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OOOK.
I have signs of life on one of the VHF amps now, 25W output from 0.4
input, so it's definitely an amplifier.
A: Feed proper band to proper amp.
B: Destroy not one, but TWO bad SMA/BNC adaptors. (somewhat less than
0.01W arriving if the cable flexed the wrong way.
C: Check state of ch
Dave VanHorn wrote:
Ahh... If it's the one with the SWA- lead, that is the VHF
amplifier It won't work on UHF, even with the two watts of
drive.
Maybe mark the amplifiers with a marking pen so you don't get them
confused
Well, I h
> Ahh... If it's the one with the SWA- lead, that is the VHF
> amplifier It won't work on UHF, even with the two watts of
drive.
>
>
> Maybe mark the amplifiers with a marking pen so you don't get them
> confused
Well, I have two of this TLD1694 with the SWA- lead, and the o
Dave VanHorn wrote:
Remember, the UHF amplifier requires 2 watts of drive.
Right. Here I'm using my HT to drive, it outputs 2W on the UHF band
by coincidence.
Maybe print out the reply I gave you so you aren't forgetting anything; since the amplifiers are v
> Remember, the UHF amplifier requires 2 watts of drive.
Right. Here I'm using my HT to drive, it outputs 2W on the UHF band
by coincidence.
> Maybe print out the reply I gave you so you aren't forgetting
anything;
> since the amplifiers are very different in their requirements.
Well, thi
Dave VanHorn wrote:
>Having opened the shield, I can see that the terminal marked feeds
>current to the first amplifier stage. The second and third stages have
>wires running to a seven pin plug, where I have nothing connected.
>
>The last stage is definitely powered from the +12 rail.
>
>I hav
Having opened the shield, I can see that the terminal marked feeds
current to the first amplifier stage. The second and third stages have
wires running to a seven pin plug, where I have nothing connected.
The last stage is definitely powered from the +12 rail.
I have the input fed in at 400mW
Dave VanHorn wrote:
CTRL
Any idea how much current is required at this point?
I believe 1 amp or less depending on output power level.
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Dave VanHorn wrote:
The UHF amplifier utilizes an Antenna Network in association with the amplifier for power control.
1 x 1 x 4 inch brick with N connectors and three terminals for
forward/reflected outputs and ground?
It's the thing on the back of the station t
> With all that said, the CTRL input is basically a variable voltage to
> the controlled stage. Voltage at this point ranges from about 7 to
14
> volts depending on what you have the Power level set to and what the
> Antenna Network will allow.
Any idea how much current is required at this
--- In Repeater-Builder@yahoogroups.com, <[EMAIL PROTECTED]> wrote:
>
> Here is an anecdotal solution to attenuation. A major tube
> manufacturer's tech support once advised me to use a length of RG-174
> balled up in a container between exciter and amplifier to calm things
> down to a closer mat
> I don't know what you
> will be driving the amplifiers with, but do try to come up with the
> right drive level.
That shouldn't be a problem, the daniels gear has a pot for variable
output.
> The UHF amplifier utilizes an Antenna Network in association with
the amplifier for power con
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