Hi Phil, just talked to a guy who wants to sell his hobby farm. It is close to Moscow I guess, here comes the MLS# : 09605479 Have a look and may be it is something for you. Talk to you soon,and enjoy your weekend Gus Date: Sun, 11 Oct 2009 17:27:10 -0700 From: pwsomers@xxxxxxxx Subject: [karc] So-called sub-audible tones To: karc@xxxxxxxxxxxxx Ever wonder why they are called "sub-audible" tones? Your ear has been hearing 60 cycle (60 Hz) hum for years. Why wouldn't it be able to hear 151.4 Hz? Well, of course it can. Apparently VHF receivers are designed with filters that block from about 67 Hz to 254.1 Hz, some better than others. My IC-746PRO is primarily an HF rig but also includes 6m and 2m. On 2m FM, it does not filter out these low frequencies. They are easily discernible as a low hum, for example when I am listening to the 94 repeater or the input on 34 where users are also using 151.4. VE3DZE, VA3AKY and I just did some tests on 52 with and without tones, and tones from the low end 67 Hz to the top end 254.1 Hz. Big range of responses from various rigs. On some rigs, the 254.1 tone was very loud and annoying. So if you are hearing some "hum" on the repeater, but not on direct on 52, etc., it may well be the so-called sub-audible 151.4 tone. ... Phil VE3HST Looking for the perfect gift? Give the gift of Flickr! _________________________________________________________________ Save up to 84% on Windows 7 until Jan 3—eligible CDN College & University students only. Hurry—buy it now for $39.99! http://go.microsoft.com/?linkid=9691635