On Sat, 11 Feb 2012 05:27:28 -0800 (PST), Ron wrote: >Anyone running the TR7 on 60 meters? If so...
I never have, but.... >-how are you making sure you keep w/i the 50 watt PEP limit? You can keep the mic gain down and reference a PEP reading wattmeter. This works particularly well if you run an RF speech processor like the SP-75 or similar. Another method would be to apply a variable negative DC voltage to the ALC input and adjust so the ALC kicks in at 50 Watts. Very little current is required, you can do it with a 9V battery connected across a poteniometer. >-is the factory TR7 audio bandwidth w/i the 2.8 Khz channel limitation? The SSB filter in the TR-7 is 2.4 KHz, so, yes. >-do you just tune 1.5Khz below center channel? Most 60 Meter charts that I have seen will show a carrier frequency to use to set your signal on the center of the channel. Since the DR-7 is a true carrier frequency display, that makes it simple. If you really want to be spot on, you will need to figure the distance from the TR-7 carrier frequency to the middle of the 2.4 KHz passband, and use that value for your channel center offset. >-anything else? Report back on how it goes. 73 -Jim -- 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://incolor.inetnebr.com/jshorney http://www.nebraskaghosts.org _______________________________________________ Drakelist mailing list [email protected] http://mailman.zerobeat.net/mailman/listinfo/drakelist
