Hi all, During the NAQP I used my narrow RTTY filters on my FT-950 to great effect. Whenever signals were close, if I dialed down my filter to 300 Hz bandwidth, it (of course) blocked out the adjacen
ORIGINAL MESSAGE: (may be snipped) REPLY: Perfectly normal. The default tones for RTTY in most transceivers and software are 2125 and 2295 Hz. When you narrow down the receiver's filters, the white n
Using lower tone freqs like Bill suggests is one answer, but I usually just turn down the volume to just the threshold where I can hear to tune. That may sound flip but I used to keep the volume a lo
One caveat is that the reason 2125/2295 became a "standard" is that any mixing artifacts are outside the passband of a typical SSB transmitter. When you go lower those artifacts start to come into th
Right. First cup of coffee. 73 jeff wk6i -- Jeff Stai ~ wk6i.jeff@gmail.com Twisted Oak Winery ~ http://www.twistedoak.com/ Facebook ~ http://www.facebook.com/twistedoak _____________________________
You've had the best advice going from Bill and Jeff. One thing to add; don't waste a minute trying to use a simple external amplifier and tone control. You are only hearing a very narrow portion of t
Thanks all....glad to know this is normal. I ended up doing what several suggested during the latter part of the NAQP, just keeping the volume up just high enough to be able to aid in tuning, And tha
I think you are dealing with a psycho-acoustic phenomenon related to having a very narrow bandpass filter, where the narrowness is less than 10% of the center frequency.. If a narrow 200Hz filter is
Interesting, Tim. That is one thing I will play with. I also need to work on getting a better grasp of how adjusting the RF gain affects decoding. -- /*/-=[Michael]-=/*/ _____________________________