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THE AM BULLETIN BOARD => QSO => Topic started by: WU2D on April 05, 2009, 06:01:42 PM



Title: 40M MOBILE
Post by: WU2D on April 05, 2009, 06:01:42 PM
Ok I thought that would wake you up. One way to get some more activity is to get a few 40M mobile stations on the air.

I had my ARC-5 station in the car for a trip to and from northern NY on Thursday evening and again on Saturday morning. This is 6 hours each way meaning up to 10 hours of AM activity! I worked quite a few guys including Timmy on his new Mobile rig which has some loud modulation. I almost had to pull over. Conditions were not great but the NVIS was working with lots of close in stations. I run 15 Watts into a mini Hustler Mag mount.

Now imagine a more efficient 40M vertical. You actually do not need much power on 40M to be heard mobile. A crystal controlled 12BY7 into a single 12DQ6 modulated by a pair of 6L6's driven by a 12AU7 and an amplified mobile mic would be a simple approach.

Mike WU2D

 


Title: Re: 40M MOBILE
Post by: K3ZS on April 06, 2009, 09:19:46 AM
There is a lot of 40M mobile activity, just not much on AM.    The continuous notraffic CARS nets on 7251, 7255 and 7258 owe there existence to SSB mobiles.
AMfone - Dedicated to Amplitude Modulation on the Amateur Radio Bands