3354Re: [wsjtgroup] JT65B Small Stations
- Nov 18, 2006At 12:33 PM 11/18/2006 -0800, you wrote:
>I have recently become aware of the importance of stability (wobble) andSteve,
>transmitter audio pass band issues with regard to JT65B modes with smaller
>borderline eme systems.
>I'm wondering how many of you with small systems (1,2 or even 4 small yagis)
>are having good results with UNmodified tx or rx commercial units? If not,
>what have you done to minimize drift and short-term tx frequency wobbling?
>Have you taken any steps to equalize the audio pass band into your tx? Have
>you been able to work other small stations as well, without modifying your
>equipment or is it essential in order to work anything other than the big
>Steve // VE7SL
I did have to modify my IC-746 as it had a 50hz drift while transmitting
and a 50Hz drift during cooldown.
I ended up ovenizing the crystal in my rig and that solved a big problem
Lee Scott - AA1YN http://www.aa1yn.com
Home of the VHF & Up Register http://www.aa1yn.com/vhf
Home of the VHF Talk chatroom http://vhftalk.aa1yn.com
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