On Mon, 16 Mar 2009 22:06:28 -0600, Jim Shorney wrote: >I'll add my "never to be humble" opinions to this
In giving this a little more thought, it seems to me that the PIN diode attenuator board is an example of treating the "symptoms" rather than the "disease". It adds another layer of complexity to the transmit strip (with it's own potential problems) to fix a "problem" that is inherent in the design of the PA deck. Wouldn't it be better to redesign the negative feedback networks on the PA and predriver boards to flatten the gain out over the HF spectrum? WDYT? 73 -Jim (not an engineer, I just play one on the internet) -- Ham Radio NU0C Lincoln, Nebraska, U.S.S.A. TR7/RV7/R7A/L7, TR6/RV6, T4XC/R4C/L4B, NCL2000, SB104A, R390A, GT550A/RV550A, HyGain 3750, IBM PS/2 - all vintage, all the time! "Give a man a URL, and he will learn for an hour; teach him to Google, and he will learn for a lifetime." HyGain 3750 User's Group - http://groups.yahoo.com/group/HyGain_3750/ http://radiojim.exofire.net http://incolor.inetnebr.com/jshorney http://www.nebraskaghosts.org _______________________________________________ Drakelist mailing list [email protected] http://mailman.zerobeat.net/mailman/listinfo/drakelist
