Re: [Elecraft] Mobile from 117 VAC

On 10/9/2017 2:01 PM, Dauer, Edward wrote: Jim – Good ideas from you, as always. The impact of RF on the car’s systems interests me the most, as I hadn’t thought of it before. Yours was a Sequoia.  Mine will be – if I buy it – a Lexus GX which is effectively the Sequoia’s cousin, if not

Re: [Elecraft] Mobile from 117 VAC

Most likely, the AC inverter built into the car does not produce a sine wave, and your radio probably won't like it. You could just connect some heavy wire, with a fuse, directly to the battery terminals, and run the radio on that.  However, car batteries don't deep cycle well at all, and

Re: [Elecraft] Mobile from 117 VAC

e.w...@gmail.com><mailto:dave.w...@gmail.com> To: Fred Jensen <k6...@foothill.net><mailto:k6...@foothill.net>; elecraft@mailman.qth.net<mailto:elecraft@mailman.qth.net> Sent: Monday, October 9, 2017 4:30 PM Subject: Re: [Elecraft] Mobile from 117 VAC My friend had a

Re: [Elecraft] Mobile from 117 VAC

There's nothing like doing the job correct, and Kent's installations seem to indicate such. I've used my Tentec 599 Eagle in my 2005 GMC Somona with a Hustler array on the rear, power cables direct to the battery.  No issues any band 80 - 6 meters.   Same basic configuration and installation

Re: [Elecraft] Mobile from 117 VAC

: Dave Fugleberg <dave.w...@gmail.com> To: Fred Jensen <k6...@foothill.net>; elecraft@mailman.qth.net Sent: Monday, October 9, 2017 4:30 PM Subject: Re: [Elecraft] Mobile from 117 VAC My friend had a jeep wrangler (2012 model IIRC ) that we used for VHF roving with no issues. W

Re: [Elecraft] Mobile from 117 VAC

My friend had a jeep wrangler (2012 model IIRC ) that we used for VHF roving with no issues. When we tried the same vehicle on HF, some bands were ok and some caused havoc with the vehicle electronics. Transmit on 15m at 100 watts triggered the wipers... 40m lit up every indicator on the dash. We

Re: [Elecraft] Mobile from 117 VAC

In my previous 2003 Chevy Silverado, I had my TS-850 on a picnic table, running off the truck battery with jumper cables to the PowerPole distribution block and the engine idling.  As soon as I sent the first CW, both front seats moved totally forward and then refused to move back, steering

Re: [Elecraft] Mobile from 117 VAC

I can offer only my personal mobile experiences over 46 years, for what it's worth: 1971 Plymouth Sport Fury FT-101E mounted over transmission hump Power cable direct from car's battery to rig Hustler rear-deck-lid-mounted antenna Many 140-watt HF CW QSOs No problems with any function of the

[Elecraft] Mobile from 117 VAC

Jim - Good ideas from you, as always. The impact of RF on the car's systems interests me the most, as I hadn't thought of it before. Yours was a Sequoia. Mine will be - if I buy it - a Lexus GX which is effectively the Sequoia's cousin, if not half-brother. So even if I conquer all the

Re: [Elecraft] Mobile from 117 VAC

Ted, KN1CBR It seems to me simpler to set up a source of 13.6 vdc to power your SUV "portable" station. Running dc leads from the vehicle battery is simplest but you need to guard against discharging it so much that the vehicle will not start. With engine running you will get about 14.2vdc

Re: [Elecraft] Mobile from 117 VAC

On 10/9/2017 1:02 PM, kg9hfr...@gmail.com wrote: I have a Toyota Prius that has a beat signal “right on 0.780MHz, WBBM - Chicago”. Have not had any issues related to my transmitter getting into anything though. Any discussion of mobile operation ought to include the bands in use. VHF/UHF is

Re: [Elecraft] Mobile from 117 VAC

I have a Toyota Prius that has a beat signal “right on 0.780MHz, WBBM - Chicago”. Have not had any issues related to my transmitter getting into anything though. Frank KG9H > On Oct 9, 2017, at 2:57 PM, Gary Smith wrote: > > "This > mechanism is a likely cause (or >

Re: [Elecraft] Mobile from 117 VAC

"This mechanism is a likely cause (or contributing cause) to my 20M RF locking up the computer in my Toyota." I'm sort of amazed, I remember when the Camry came out in the 80's there was a lot said about how 20W from a 2M radio would kill the computer and Toyota wouldn't warranty that. It

Re: [Elecraft] Mobile from 117 VAC

Frank:   Are you referring to AC ground {green wire} or AC neutral {white wire}? In my installation the battery negative is connected via a green wire to the trailer frame.  The battery negative is also connected to the DC distribution panel via a #4 black wire.    From the DC to AC inverter,

Re: [Elecraft] Mobile from 117 VAC

It IS critical that all conductive parts of the vehicle be bonded together. It is critical for two reasons. First, because those parts carry antenna current on both TX and RX, and to be effective as a counterpoise, they must have good electrical contact. You're absolutely right about paint.

Re: [Elecraft] Mobile from 117 VAC

er 09, 2017 12:00 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] Mobile from 117 VAC Overall, not a great plan. Using an inverter, you will introduce RF noise, generate heat and poor regulation, unless you get a quality inverter (not cheap). It's inefficient too and space wasteful. If

Re: [Elecraft] Mobile from 117 VAC

I’m curious for the bonding guys.. Are you connecting the “ground” of the AC mains to the ground of the 12VDC as well as the ground on the inverter? Frank > On Oct 9, 2017, at 12:34 PM, Rick WA6NHC wrote: > > It's both. ;-) > > Rick nhc > > > On 10/9/2017 10:07 AM, Jim

Re: [Elecraft] Mobile from 117 VAC

If your intent is to operate portable (buddipole in a parking lot) as opposed to mobile, then none of the issues you described about bonding, ferrites, vehicle electrical systems, etc come into play anyhow. Just use the 12v from the vehicle battery (fused of course). You can operate quite awhile

Re: [Elecraft] Mobile from 117 VAC

It's both.  ;-) Rick nhc On 10/9/2017 10:07 AM, Jim Brown wrote: On 10/9/2017 9:56 AM, Rick WA6NHC wrote: Mobile HF is an art. No, it is SCIENCE. 73, Jim K9YC __ Elecraft mailing list Home:

Re: [Elecraft] Mobile from 117 VAC

My RV has a 3 KW inverter; I've not noted noises from it on any band but it was NOT cheap and it has it's own battery supply (not the house battery) and the radio has it's own battery supply.  There is no physical contact, only proximity. We're not in disagreement here but we're approaching

Re: [Elecraft] Mobile from 117 VAC

On 10/9/2017 9:56 AM, Rick WA6NHC wrote: Mobile HF is an art. No, it is SCIENCE. 73, Jim K9YC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post:

Re: [Elecraft] Mobile from 117 VAC

On 10/9/2017 9:00 AM, Rick WA6NHC wrote: Overall, not a great plan. Using an inverter, you will introduce RF noise, generate heat and poor regulation, I've used "good" ones (Samlex "pure sine wave" with FCC Part 15 Class B certification) and they ARE NOISY.  Using a lot of ferrite cores got

Re: [Elecraft] Mobile from 117 VAC

Only if you have another counterpoise prepared other than the vehicle; otherwise it all needs to be bonded to the vehicle to raise the (already meager) antenna efficiency.  Short HF vehicular antennas only run in the lower single digit efficiencies, Buddipole or not.  You have to do all you

Re: [Elecraft] Mobile from 117 VAC

For a 100 watt PEP HF radio or like VHF/UHF radio, the correct solution is a 3 wire system.  Positive - connected and fused at the battery and radio ends, Negative - connected and fused at the battery and radio ends, AND a 3rd wire connected to the firewall/frame {not battery negative} of the

Re: [Elecraft] Mobile from 117 VAC

It doesn't sound like you are operating mobile at all if your antenna is a Buddipole in a parking lot. Leave the vehicle turned off. No ignition noise or bonding to worry about. If that limits your operating time, carry another battery to power the rig (maybe a gel cell for safety) when you

Re: [Elecraft] Mobile from 117 VAC

Overall, not a great plan. Using an inverter, you will introduce RF noise, generate heat and poor regulation, unless you get a quality inverter (not cheap).  It's inefficient too and space wasteful. If you use a power port (no longer called cigarette plugs), you will again introduce noise

Re: [Elecraft] Mobile from 117 VAC

I used a Swan 14A converter way back when. Never noticed any bad hash. Just the whine when I keyed down. > > > > -- > Sent from: http://elecraft.365791.n2.nabble.com/ > __ > Elecraft mailing list > Home:

Re: [Elecraft] Mobile from 117 VAC

This is entirely unnecessary. Use the cigarette lighter and MFJ power conditioner. While you radio requires 20A peak, the power conditioner reduces it to about 8 A average, which the cigarette lighter will do easily. Ignacy, NO9E -- Sent from: http://elecraft.365791.n2.nabble.com/

Re: [Elecraft] Mobile from 117 VAC

would have to be careful hooking things up. 73, Erik K7TV -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Dauer, Edward Sent: Sunday, October 08, 2017 8:19 PM To: elecraft@mailman.qth.net Subject: [Elecraft] Mobile from 11

Re: [Elecraft] Mobile from 117 VAC

DC to AC inverters are notoriously noisy EMI/RFI-wise, even the so-called pure sine wave units. There's a good chance you'll have spurs right where you're trying to listen. There *are* good units out there, but they're not cheap, and you'll still have to go through the exercise of proper

Re: [Elecraft] Mobile from 117 VAC

to be careful hooking things up. 73, Erik K7TV -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Dauer, Edward Sent: Sunday, October 08, 2017 8:19 PM To: elecraft@mailman.qth.net Subject: [Elecraft] Mobile from 117 VAC

[Elecraft] Mobile from 117 VAC

Previous threads provided a great deal of info about arranging automobile electrical systems to power HF rigs. But as I recall, it all focused on using the battery / alternator supply for the 13 VDC. Though I wanted to go mobile and still do, for a number of reasons I could not configure my