[Elecraft] Really OT: Inside-the-vehicle HF antennas (possible bonus points)

Mike Flowers mike.flowers at gmail.com
Sat Jul 15 21:22:44 EDT 2017


You may want to have some minimum distance required for the QSO.   Two KC2s and a short length of coax would do the trick between two cars parked next to each other.  ;>)

-- Mike Flowers, K6MKF, NCDXC - "It's about DX!"

> On Jul 15, 2017, at 5:53 PM, Wayne Burdick <n6kr at elecraft.com> wrote:
> 
> I’m dealing with one of the last unsolved problems in amateur radio: how to operate HF mobile without an antenna. At least not one that, according to some vehicle co-owners/spouses, would defile your new sedan.
> 
> For 10 bonus points that have only philosophical value, your challenge is to create an invisible mobile antenna and actually make a QSO on it. For practical purposes (i.e., not frying the car or passengers) let’s say the maximum power level is 10 watts. The bands of interest are 40-10 meters.
> 
> Here are some ideas I’m considering:
> 
> - mag loop in the rear window
> - thin wire loop on a roof rack 
> - gamma match to the entire roof
> - surface acoustic waves
> - prayer
> 
> Other ideas?
> 
> Yes, I know this violates the laws of physics and bioethics. And I fully expect the car to generate debilitating levels of RFI. But isn’t this the least you’d expect from an unsolved problem? 
> 
> Thanks in advance,
> 
> Wayne
> N6KR
> 
> 
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