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Armstrong STL's
- Thread starter Sgeirk
- Start date
M
menotti1
Guest
got one now with a transmitter problem.on composite input anything over 20 per cent causes the sig to get totally trashed, but you can feed the left and right input, it seems to work fine.anyone had the problem or know the solution??
I have a freq agile one here in Savannah which I used for a back up. You do have to be careful with the input. You can overload it very easily, but having the left and right input is a nice alternative. I have even used the headphone output on the receiver to feed a mono AM in an emergency.
That's precisely one of the problems we're having, running 100% modulation, the audio sounds trashed, like you describe (particularly HFs).
We switched to a 'backup' Moseley...problem fixed.
So, running discrete l/r audio over one of these works better?!? I've just inherited two. Thanks.
We switched to a 'backup' Moseley...problem fixed.
So, running discrete l/r audio over one of these works better?!? I've just inherited two. Thanks.
try backing down on the comp input level and see if that does anything.that's my next step, reduce the comp output level on the processor, then try to dial up 100 percent on the stl xmtr....thing is more finicky than Morris the Cat...
I have a 5 year old pair that are used for backup.
On this older version the receiver has a habit of putting out a nasty DC spike everytime it's PLL un-lock or locks (when it powers up or you change frequency). Exciters tend to un-lock and that cycles the transmitter. Had it on a UPS because of that. Seem to remember that the outputs have level adjustment.
The transmitter only had a power switch on the front and a BNC on the back for remote radiate. Weird. So I re-wired the front switch as radiate.
Not familliar with the latest version.
On this older version the receiver has a habit of putting out a nasty DC spike everytime it's PLL un-lock or locks (when it powers up or you change frequency). Exciters tend to un-lock and that cycles the transmitter. Had it on a UPS because of that. Seem to remember that the outputs have level adjustment.
The transmitter only had a power switch on the front and a BNC on the back for remote radiate. Weird. So I re-wired the front switch as radiate.
Not familliar with the latest version.
M
menotti1
Guest
the transmitter is the armstrong FML10T.processor comp out into the comp in on the stl xmtr, never had a problem with levels.On this unit , once you increase modulation past 20 per cent ,on the stl,the sig just goes to trash.not sure why,is it a load or impedence issue??
I would only consider a Moseley STL. They have been the leader in STL's for 30 years. More money, but in the long run it will be worth it.
actually Armstrong, whose father invented FM radio,makes some very good products, xmtr,exciter, stl.nearly all will require repair at some point and time.and mosely is a great product as well...alot of rf engs like the Armstrong products.
oldiesstation said:
Most Armstrong equipment is rebranded products built by RVR Eletronica in Italy. RVR products are sold under a variety of names, including their own. See: http://www.rvr.it
still doesn't change the fact that ed armstrong is credited with being the father of fm radio and his dad the father of radar.pretty impressive..IMHO
waituhminnit...was that a serious comment about armstrong being connected to the REAL Armstrong?
j boyd, i was strokin' about that connection..have a good day.you are a hoot...
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