Hello Lyle, Jim and Ignacy and others,
Thanks for all your valuable advice.
Hong Kong is small and good for Electric Vehicles. The population of EV has
increased from 100 to now around 7000 in 5 years time. Regrettably,
installation of chargers at condominium car parks is still a uphill battle.
In fact, in terms of number of EV per km of roads, Hong Kong is the highest
among the Asia Pacific.
73
Johnny VR2XMC
寄件人︰ Lyle Johnson <[email protected]>
收件人︰ [email protected]
傳送日期︰ 2016年10月19日 (週三) 11:41 PM
主題︰ Re: [Elecraft] operating HF / KX3 in a Tesla Model S
Hello Johnny!
You may need some filtering on the 12V power connector in the center
console of the Model S. The 12V battery is also quite small in the
vehicle. I'd be inclined to package an LiFePO4 battery pack and a
charger for it and place it in the center console area, powering the
mobile rig from the LiFePO4 pack. That will give you surge capacity for
higher power should you desire it, probably make any necessary 12V noise
filtering easier and limit the stress on the 12V system in the Model S.
For antenna mounting, you might consider adding a trail hitch adapter,
and then mount the mobile antenna to that, using its bonding to prevent
possible damage or modification to your vehicle. In the U.S., such a
hitch is made by Torklift (www.torkliftcentral.com then click through
Ecohitch and Tesla Model S) and seels for under $400 plus shipping and
installation. It is invisible when not in use. I know a couple of Model
S owners here in Tucson that have these hitches and are satisfied with
their quality and durability.
73,
Lyle KK7P
On 10/19/16 7:45 AM, Johnny Siu via Elecraft wrote:
> Thanks Bill. The fuse in the cigarette lighter is 15A. I think only a 50 W
> amplifier is workable.
> 73
> Johnny VR2XMC
>
> 寄件人︰ Bill Frantz <[email protected]>
> 收件人︰ Johnny Siu <[email protected]>
> 副本(CC)︰ Elecraft Reflector <[email protected]>
> 傳送日期︰ 2016年10月19日 (週三) 10:15 PM
> 主題︰ Re: [Elecraft] operating HF / KX3 in a Tesla Model S
>
> On 10/19/16 at 9:02 PM, [email protected] (Johnny Siu via
> Elecraft) wrote:
>
>> I am thinking operating my KX3 in my Tesla and have some questions:
>> 1. Is it ok to direct drain DC supply from the cigarette
>> lighter socket since there is no ignition system in the Tesla?
> You will be drawing less than 4 amps, so the lighter socket
> should work fine. If you decide to add the 100W amp, then
> running dedicated wires will probably be the correct choice. I
> would want to know more about the 12V supply in the Tesla before
> running them. Perhaps the car manual has some advice.
>
>
>> 2. The body of Tesla is aluminium alloy (if I am correct.
>> How can I ground a mobile whip to the car body?
> Grounding techniques should be the same as for steel. Do be
> aware of the corrosion issues when different metals are in
> contact. Aluminium corrodes easily, so having a sacrificial
> piece of metal to protect the car body may be a good idea.
> Perhaps a piece of aluminum bonded to the car body with copper
> or brass bonded to it. (My electro-chemistry is a bit rusty.)
> Then that piece of aluminum will corrode and can be easily
> replaced. Also think about the materials for any screws/bolts
> used for the bonding.
>
> 73 Bill AE6JV
______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[email protected]
This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to [email protected]
______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[email protected]
This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to [email protected]
