From: Graf Ulrich Com MD PD ST 2 ULM 1 
Subject: WG: [drakelist] Another L-7 Question


Graf Ulrich Com MD PD ST 2 ULM 1  made an
utterence to the drakelist gang
----------------------------------------------------------------------

Hello Kevin,

whichever linear you are operating, using alc is a way to go but never the
best way. Alc is a control system that always causes a specific time delay
to react. Operation with high amounts of alc feedback may therefor cause a
lot of splatter until the system has settled. So alc in general is only a
good system to protect your setup from destruction but not to achieve a
clean signal.

Best way to go: Reduce output power of the driving transceiver, feed the pa
and increase power slowly to the wanted amount of pa output or maximum
allowable grid current. In ssb you perform that best talking into the mic
with a normal voice and measuring output power with a pep wattmeter. With
this adjustment alc is superfluous and your signal alway as clean as
possible. After getting used to the procedure it's rather simple to keep
those power levels or adjustment values in mind for standard operation on
all bands.

73 Uli, DK4SX

-----Ursprüngliche Nachricht-----
Von: owner-drakelist{at}www.zerobeat.net
[mailto:owner-drakelist{at}www.zerobeat.net] Im Auftrag von Kevin Nathan
Gesendet: Mittwoch, 2. März 2005 16:02
An: drakelist{at}zerobeat.net
Betreff: [drakelist] Another L-7 Question



"Kevin Nathan"  made an utterence to the
drakelist gang
----------------------------------------------------------------------
Hi All,

I will be driving my L-7, when I get it, with a Kenwood TS-480SAT, maximum
of 100 watts.  I have been advised by a couple of people that with this
level of drive, I really don't need to worry about connecting the ALC line.
I would like to know if there is agreement with this opinion or not among
owners on this list.  If ALC is recommended, the manual for my 480 says the
ALC input from the amp is -7V.  Would this be compatible with the ALC
output of the L-7?

Thanks for your thoughts on both of these questions and very 73.

Kevin :)
Amateur Radio:  K7RX
Navy Marine Corps MARS:  NNN0SHS

 



----------------------------------------------------------------------
On Behalf of "Kevin Nathan" 
Submissions:        drakelist{at}www.zerobeat.net
Unsubscribe:        majordomo{at}www.zerobeat.net - unsubscribe drakelist in body
Hopelessly Lost:    majordomo{at}www.zerobeat.net - help in body of message
Zerobeat Web Page:  http://www.zerobeat.net
Brought to you courtesy of TLCHost.net  http://www.tlchost.net/
----------------------------------------------------------------------
----------------------------------------------------------------------
On Behalf of Graf Ulrich Com MD PD ST 2 ULM 1 
Submissions:        drakelist{at}www.zerobeat.net
Unsubscribe:        majordomo{at}www.zerobeat.net - unsubscribe drakelist in body
Hopelessly Lost:    majordomo{at}www.zerobeat.net - help in body of message
Zerobeat Web Page:  http://www.zerobeat.net
Brought to you courtesy of TLCHost.net  http://www.tlchost.net/
----------------------------------------------------------------------

---