OT: Mobile operation "bible"
Locked
12
12
 
|
K0BG's website is considered by many to be the ultimate source of of
vehicle-related information. 73 Ken - K0PP ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
Re: OT: Mobile operation "bible"
|
|
On Thu,3/31/2016 11:29 AM, Ken G Kopp wrote:
> K0BG's website is considered by many to be the ultimate source of of > vehicle-related information. Yes, but some of it is wrong. 73, Jim K9YC ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
|
|
I have a Little Tarheel screwdriver antenna on the 4Runner. It
works well on 21MHz and higher, and less well as you go down in frequency. When parked, I try to add an external counterpose clipped to the ground side of the antenna mount, which seems to help on 40M. I really think you want your counterpose to be on the order of 1/4 wave long, and the 4Runner isn't 10 meters long. I do remember doing search and pounce in the California QSO party on 80M. As I tuned up the band and found a new station, I had to re-turn the antenna, which I did while giving my call. Everyone who answered said something along the line of, "You're down in the noise, but we'll make it work." I thank them. 73 Bill AE6JV ----------------------------------------------------------------------- Bill Frantz | I don't have high-speed | Periwinkle (408)356-8506 | internet. I have DSL. | 16345 Englewood Ave www.pwpconsult.com | | Los Gatos, CA 95032 ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
Re: OT: Mobile operation "bible"
|
|
While I never tune while driving, I got rid of the autotuners for the HI-Q 5-160 antenna and installed a switch to allow me to transfer the antenna to a FG-01 analyzer. So when I need to move frequency, I pull over stop, switch to the analyzer and tune the antenna. Simple and fool proof. Legal too. Pictures on file.
Mel, K6KBE From: Bill Frantz <[hidden email]> To: [hidden email] Sent: Thursday, March 31, 2016 1:27 PM Subject: Re: [Elecraft] OT: Mobile operation "bible" I have a Little Tarheel screwdriver antenna on the 4Runner. It works well on 21MHz and higher, and less well as you go down in frequency. When parked, I try to add an external counterpose clipped to the ground side of the antenna mount, which seems to help on 40M. I really think you want your counterpose to be on the order of 1/4 wave long, and the 4Runner isn't 10 meters long. I do remember doing search and pounce in the California QSO party on 80M. As I tuned up the band and found a new station, I had to re-turn the antenna, which I did while giving my call. Everyone who answered said something along the line of, "You're down in the noise, but we'll make it work." I thank them. 73 Bill AE6JV ----------------------------------------------------------------------- Bill Frantz | I don't have high-speed | Periwinkle (408)356-8506 | internet. I have DSL. | 16345 Englewood Ave www.pwpconsult.com | | Los Gatos, CA 95032 ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
Re: OT: Mobile operation "bible"
|
|
Interesting comments Mel. I have purchased a Little Tarheel and installed it on my vehicle, but I have not got around to doing anything with it. I have a MFJ tuner that looks like it will work as well as the one you use. Are you using a Coax switch? I would be interested in your pictures if you have them on line. I also have a MFJ tuner that I have not installed as yet, but it looks like if you installed the tuner so that it is in line with the anslyzer or the rig when you have a coax switch installed you could use auto tune and then see what you have as well. Willis 'Cookie' Cooke,
From: Mel Farrer via Elecraft <[hidden email]> To: Bill Frantz <[hidden email]>; "[hidden email]" <[hidden email]> Sent: Thursday, March 31, 2016 4:13 PM Subject: Re: [Elecraft] OT: Mobile operation "bible" While I never tune while driving, I got rid of the autotuners for the HI-Q 5-160 antenna and installed a switch to allow me to transfer the antenna to a FG-01 analyzer. So when I need to move frequency, I pull over stop, switch to the analyzer and tune the antenna. Simple and fool proof. Legal too. Pictures on file. Mel, K6KBE From: Bill Frantz <[hidden email]> To: [hidden email] Sent: Thursday, March 31, 2016 1:27 PM Subject: Re: [Elecraft] OT: Mobile operation "bible" I have a Little Tarheel screwdriver antenna on the 4Runner. It works well on 21MHz and higher, and less well as you go down in frequency. When parked, I try to add an external counterpose clipped to the ground side of the antenna mount, which seems to help on 40M. I really think you want your counterpose to be on the order of 1/4 wave long, and the 4Runner isn't 10 meters long. I do remember doing search and pounce in the California QSO party on 80M. As I tuned up the band and found a new station, I had to re-turn the antenna, which I did while giving my call. Everyone who answered said something along the line of, "You're down in the noise, but we'll make it work." I thank them. 73 Bill AE6JV ----------------------------------------------------------------------- Bill Frantz | I don't have high-speed | Periwinkle (408)356-8506 | internet. I have DSL. | 16345 Englewood Ave www.pwpconsult.com | | Los Gatos, CA 95032 ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
Re: OT: Mobile operation "bible"
|
|
In reply to this post by Elecraft mailing list
On Thu,3/31/2016 2:13 PM, Mel Farrer via Elecraft wrote:
> While I never tune while driving, I got rid of the autotuners for the HI-Q 5-160 antenna and installed a switch to allow me to transfer the antenna to a FG-01 analyzer. Short loaded antennas are, by their nature, pretty narrow band for tuning. When I still ran HF mobile, I found that a rig with an auto-tuner was a big help in extending the useful bandwidth of an antenna. If, for example, the antenna was resonant on 7075, a tuner might match it to the rig from 7000 to 7150 or even higher, whereas without the tuner I'd be limited to about half that. Bearing in mind that in a mobile installation, coax is too short to introduce enough loss to matter, so it's merely a matter of making the rig's output stage happy (and running at full output). 73, Jim K9YC ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
Re: OT: Mobile operation "bible"
|
|
>> When I still ran HF mobile, I found that a rig with an
auto-tuner was a big help in extending the useful bandwidth of an antenna.<<Jim, what type of antenna did you employed the auto-tuner?Was it a screwdriver type antenna as in the HI-Q 5-160?Or, was it an Hustler? ((((73)))) Milverton / W9MMS. From: Jim Brown <[hidden email]> To: [hidden email] Sent: Friday, April 1, 2016 12:09 AM Subject: Re: [Elecraft] OT: Mobile operation "bible" On Thu,3/31/2016 2:13 PM, Mel Farrer via Elecraft wrote: > While I never tune while driving, I got rid of the autotuners for the HI-Q 5-160 antenna and installed a switch to allow me to transfer the antenna to a FG-01 analyzer. Short loaded antennas are, by their nature, pretty narrow band for tuning. When I still ran HF mobile, I found that a rig with an auto-tuner was a big help in extending the useful bandwidth of an antenna. If, for example, the antenna was resonant on 7075, a tuner might match it to the rig from 7000 to 7150 or even higher, whereas without the tuner I'd be limited to about half that. Bearing in mind that in a mobile installation, coax is too short to introduce enough loss to matter, so it's merely a matter of making the rig's output stage happy (and running at full output). 73, Jim K9YC ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
|
|
In reply to this post by Jim Brown-10
All,
The coax length doesn't matter because of the following reasons. Assuming the tuner is at the rig, there is a run of any coax to the antenna feed point, and you have a fairly high Q low band antenna that can't QSY much. With short HF mobile antennas that are high Q the reactance at the feed point when you QSY beyond 3:1 or so makes the system very lossy regardless of how low a loss or how short of coax is in there. The power accepted by the antenna under these conditions goes down the further you QSY due to the large reactance leaving the dissipated power to be burned up in the coax (and some in the imperfect antenna tuner at the rig) no matter how low loss it is or how short it is. You cannot increase the power accepted by the antenna unless you bring the feed point back closer to 50-ohms somehow through external loading of the antenna. (Even then there are other loss factors to consider such as ground loss and radiation resistance). It's kind of like a "tug of war" between two Qs. The antenna Q and the tuner Q with the coax in the middle accepting all the power. 73/72, Myron WVØH Printed on Recycled Data > On Mar 31, 2016, at 11:09 PM, Jim Brown <[hidden email]> wrote: > > Bearing in mind that in a mobile installation, coax is too short to introduce enough loss to matter, so it's merely a matter of making the rig's output stage happy (and running at full output). ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
|
|
In reply to this post by Ken G Kopp
I use the HiQ 4-80 with a 2' mast extender mounted on the back bumper of a F150. At the base of the antenna I have a hb box of six relays to switch in the appropriate capacitors to match the feed point impeadance and I use the Ameritron SDC-102 memory controller that does a good job of going to the saved locations but I usually have to give it a "bump" or two on 60, 80, or 160 (with aux coil I can add if I have to get on that band).
As this system is "almost" seamless, and as someone else mentioned. I still stop to change bands to keep it safe. The old ARRL mobile manual is still pretty good read on this subject. 73 es GL Mike WA5POK On Thu, 3/31/16, WILLIS COOKE via Elecraft <[hidden email]> wrote: Subject: Re: [Elecraft] OT: Mobile operation "bible" To: "Mel Farrer" <[hidden email]>, "Bill Frantz" <[hidden email]>, "[hidden email]" <[hidden email]> Date: Thursday, March 31, 2016, 10:44 PM Interesting comments Mel. I have purchased a Little Tarheel and installed it on my vehicle, but I have not got around to doing anything with it. I have a MFJ tuner that looks like it will work as well as the one you use. Are you using a Coax switch? I would be interested in your pictures if you have them on line. I also have a MFJ tuner that I have not installed as yet, but it looks like if you installed the tuner so that it is in line with the anslyzer or the rig when you have a coax switch installed you could use auto tune and then see what you have as well. Willis 'Cookie' Cooke, From: Mel Farrer via Elecraft <[hidden email]> To: Bill Frantz <[hidden email]>; "[hidden email]" <[hidden email]> Sent: Thursday, March 31, 2016 4:13 PM Subject: Re: [Elecraft] OT: Mobile operation "bible" While I never tune while driving, I got rid of the autotuners for the HI-Q 5-160 antenna and installed a switch to allow me to transfer the antenna to a FG-01 analyzer. So when I need to move frequency, I pull over stop, switch to the analyzer and tune the antenna. Simple and fool proof. Legal too. Pictures on file. Mel, K6KBE From: Bill Frantz <[hidden email]> To: [hidden email] Sent: Thursday, March 31, 2016 1:27 PM Subject: Re: [Elecraft] OT: Mobile operation "bible" I have a Little Tarheel screwdriver antenna on the 4Runner. It works well on 21MHz and higher, and less well as you go down in frequency. When parked, I try to add an external counterpose clipped to the ground side of the antenna mount, which seems to help on 40M. I really think you want your counterpose to be on the order of 1/4 wave long, and the 4Runner isn't 10 meters long. I do remember doing search and pounce in the California QSO party on 80M. As I tuned up the band and found a new station, I had to re-turn the antenna, which I did while giving my call. Everyone who answered said something along the line of, "You're down in the noise, but we'll make it work." I thank them. 73 Bill AE6JV ----------------------------------------------------------------------- Bill Frantz | I don't have high-speed | Periwinkle (408)356-8506 | internet. I have DSL. | 16345 Englewood Ave www.pwpconsult.com | | Los Gatos, CA 95032 ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
Re: OT: Mobile operation "bible"
|
|
In reply to this post by Elecraft mailing list
I used HamSticks.
73, Jim On Fri,4/1/2016 4:57 AM, [hidden email] wrote: > >> When I still ran HF mobile, I found that a rig with an > auto-tuner was a big help in extending the useful bandwidth of an > antenna.<< > Jim, what type of antenna did you employed the auto-tuner? > Was it a screwdriver type antenna as in the HI-Q 5-160? > Or, was it an Hustler? > > ((((73)))) Milverton / W9MMS. > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
|
|
In reply to this post by Ken G Kopp
I have found Ham sticks work fine on 20 and up but I won't talk about what happen to a 75 meter ham stick we were tinkering with and forgot to turn off the mobile amp!
-------------------------------------------- On Fri, 4/1/16, Jim Brown <[hidden email]> wrote: Subject: Re: [Elecraft] OT: Mobile operation "bible" To: "Reflector Elecraft" <[hidden email]> Date: Friday, April 1, 2016, 3:54 PM I used HamSticks. 73, Jim On Fri,4/1/2016 4:57 AM, [hidden email] wrote: > >> When I still ran HF mobile, I found that a rig with an > auto-tuner was a big help in extending the useful bandwidth of an > antenna.<< > Jim, what type of antenna did you employed the auto-tuner? > Was it a screwdriver type antenna as in the HI-Q 5-160? > Or, was it an Hustler? > > ((((73)))) Milverton / W9MMS. > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
Re: OT: Mobile operation "bible"
|
|
In reply to this post by Ken G Kopp
My only attempt at HF in a mobile was on my old 78 Scout Traveler
(diesel). Before heading to AK I had a welder install a big front bumper with space for a winch and brush guard for front grill and head lights. Alas, I never bought the winch so had a tool box installed in its place. OK I used the 1-inch steel tubing as a clamp support for a Hustler 4BTX which I had the 80m whip option. It stuck up there a ways so was only installed when I was parked. Worked K4USA (I think the call was) from Eagle, AK to the Antarctic via 20m and 100w. The scout was a heavy rig 4500-lbs. and had a nice steel frame which probably helped. Now if you want a challenge install a 4-MHz HF Marine SSB station on a fishing boat (typ. 25-35 foot). The one's with fiberglass hulls can be a challenge. Most Marine HF used either 21-foot or 35-foot whips and had a manual tuner (In the old days vs auto-tuner now days) attached to something metallic right at the base of the antenna. Usually had a 1-inch mesh ground strap to ground and RG-8 to the radio. The manual tuners had a motorized switch to select taps in the loading coil and jumpers for the bank of fixed tuning caps. Fortunately only about six to eight channels were programmed as one could spend a hour easily trying to find the best combo of tap position and capacity. 2182-KHz was the mandatory emergency watch frequency and getting a good match was awful. 4125-KHz (4A) was the standard in AK for all the fisherman and one could hear them some times out to 800 mi at night. 100-125w was standard. On my last job I installed a Harris 1kW linear to serve as Marine HF Base on 4125 and strung a dipole at 40-foot between two Rohn-25 towers (nice to be a rich oil company!). They sold them as Satellite telephone has largely replaced HF for commercial marine. Boats still have them but little used. Sorry about reminiscing - the topic reminded me of those days in early 1980's. 73, Ed - KL7UW http://www.kl7uw.com "Kits made by KL7UW" Dubus Mag business: [hidden email] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
Re: OT: Mobile operation "bible"
|
Administrator
|
We're hitting the OT posting limit on this one. Let's wind it down in the next
2-3 posts. 73, Eric Moderator from time to time.. /elecraft.com/ On 4/1/2016 10:23 AM, Edward R Cole wrote: > My only attempt at HF in a mobile was on my old 78 Scout Traveler (diesel). > Before heading to AK I had a welder install a big front bumper with space for > a winch and brush guard for front grill and head lights. Alas, I never bought > the winch so had a tool box installed in its place. ... ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
Re: OT: Mobile operation "bible"
|
|
In reply to this post by Mike Furrey
Actually Willis, there is no additional tuner. Just the motor in the antenna and a single base matching coil. I have put in a 15 turn airdux coil and use taps to set the best for 80 and up. Works for me.
Pictures on on file at several elecraft/antenna/mobile/HI-Q/ etc blogs. Anything in particular and I will send it direct. Mel, K6KBE From: Mike Furrey <[hidden email]> To: "[hidden email]" <[hidden email]> Sent: Friday, April 1, 2016 7:47 AM Subject: Re: [Elecraft] OT: Mobile operation "bible" I use the HiQ 4-80 with a 2' mast extender mounted on the back bumper of a F150. At the base of the antenna I have a hb box of six relays to switch in the appropriate capacitors to match the feed point impeadance and I use the Ameritron SDC-102 memory controller that does a good job of going to the saved locations but I usually have to give it a "bump" or two on 60, 80, or 160 (with aux coil I can add if I have to get on that band). As this system is "almost" seamless, and as someone else mentioned. I still stop to change bands to keep it safe. The old ARRL mobile manual is still pretty good read on this subject. 73 es GL Mike WA5POK On Thu, 3/31/16, WILLIS COOKE via Elecraft <[hidden email]> wrote: Subject: Re: [Elecraft] OT: Mobile operation "bible" To: "Mel Farrer" <[hidden email]>, "Bill Frantz" <[hidden email]>, "[hidden email]" <[hidden email]> Date: Thursday, March 31, 2016, 10:44 PM Interesting comments Mel. I have purchased a Little Tarheel and installed it on my vehicle, but I have not got around to doing anything with it. I have a MFJ tuner that looks like it will work as well as the one you use. Are you using a Coax switch? I would be interested in your pictures if you have them on line. I also have a MFJ tuner that I have not installed as yet, but it looks like if you installed the tuner so that it is in line with the anslyzer or the rig when you have a coax switch installed you could use auto tune and then see what you have as well. Willis 'Cookie' Cooke, From: Mel Farrer via Elecraft <[hidden email]> To: Bill Frantz <[hidden email]>; "[hidden email]" <[hidden email]> Sent: Thursday, March 31, 2016 4:13 PM Subject: Re: [Elecraft] OT: Mobile operation "bible" While I never tune while driving, I got rid of the autotuners for the HI-Q 5-160 antenna and installed a switch to allow me to transfer the antenna to a FG-01 analyzer. So when I need to move frequency, I pull over stop, switch to the analyzer and tune the antenna. Simple and fool proof. Legal too. Pictures on file. Mel, K6KBE From: Bill Frantz <[hidden email]> To: [hidden email] Sent: Thursday, March 31, 2016 1:27 PM Subject: Re: [Elecraft] OT: Mobile operation "bible" I have a Little Tarheel screwdriver antenna on the 4Runner. It works well on 21MHz and higher, and less well as you go down in frequency. When parked, I try to add an external counterpose clipped to the ground side of the antenna mount, which seems to help on 40M. I really think you want your counterpose to be on the order of 1/4 wave long, and the 4Runner isn't 10 meters long. I do remember doing search and pounce in the California QSO party on 80M. As I tuned up the band and found a new station, I had to re-turn the antenna, which I did while giving my call. Everyone who answered said something along the line of, "You're down in the noise, but we'll make it work." I thank them. 73 Bill AE6JV ----------------------------------------------------------------------- Bill Frantz | I don't have high-speed | Periwinkle (408)356-8506 | internet. I have DSL. | 16345 Englewood Ave www.pwpconsult.com | | Los Gatos, CA 95032 ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
|
|
I'm eagerly awaiting delivery of a K3s/100 kit on Tuesday. I didn't
order the P3 panadapter, but plan to in a few months. Is it allowed to place the P3 on top of the K3? I see ventilation slots in the top panel, but I think the P3 has feet that elevate it. Is there enough clearance for satisfactory K3 ventilation? Thanks for any info. -- 73, Mike N4CF Louisa County, VA USA Elecraft KX3 + KXPA100 @ 100W Elecraft PX3 panadapter Carolina Windom up 45' http://n4cf.mdodd.com ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
|
|
Yes, that works fine, and it's how mine are mounted. I use velcro tabs
to keep the P3 from sliding back -- I use the tilt-bale on the bottom of the K3 to place it at a good viewing and operating angle. 73, Jim K9YC On Fri,4/1/2016 5:46 PM, Mike Dodd wrote: > it allowed to place the P3 on top of the K3? I see ventilation slots > in the top panel, but I think the P3 has feet that elevate it. Is > there enough clearance for satisfactory K3 ventilation? ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
|
|
In reply to this post by Mike Dodd
Hi Mike,
I had the P3 on top for several years. I also had the front bale raised on the K3. I used a piece of non-adhesive shelf liner to keep the P3 from sliding around. I cut out the shelf liner around the K3 speaker openings. Absolutely no problem with sliding or K3 ventilation. 73, Mike K2MK
|
|
|
In reply to this post by Jim Brown-10
On 4/1/2016 10:22 PM, Jim Brown wrote:
> Yes, that works fine, and it's how mine are mounted. I use Velcro tabs > to keep the P3 from sliding back -- I use the tilt-bale on the bottom of > the K3 to place it at a good viewing and operating angle. Thanks to all who replied here and off-list as well. Here is a photo of what I'm working with: <http://n4cf.mdodd.com/rig.html#NewRig> I made a mockup of the K3, so I think I'll also make one of the P3. The green foam block probably is taller than the k3's folding wire foot, so I might build a sloping wooden stand that places the front panel an inch lower. Hopefully that will leave space on top for the P3 to fit into the hutch cavity. If not, there is space to the right of the hutch -- less convenient, but workable. Thanks again, everyone. -- 73, Mike N4CF Louisa County, VA USA Elecraft KX3 + KXPA100 @ 100W Elecraft PX3 panadapter Carolina Windom up 45' http://n4cf.mdodd.com ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
Re: OT: Mobile operation "bible"
|
|
In reply to this post by Ken G Kopp
Yep, and I remember HWL running the ART13 and blew the poorly mounted SS tip off the whip at a convention. That makes me older than dirt.....
Mel, K6KBE From: Ron D'Eau Claire <[hidden email]> To: [hidden email] Sent: Saturday, April 2, 2016 10:50 AM Subject: Re: [Elecraft] OT: Mobile operation "bible" Back in the 50's QRO mobiles used large diameter loading coils wound with heavy wire and often added a copper toilet tank float to the end of the antenna to minimize corona discharge. 73, Ron AC7AC -----Original Message----- From: Elecraft [mailto:[hidden email]] On Behalf Of Mike Furrey Sent: Friday, April 1, 2016 9:28 AM To: [hidden email] Cc: [hidden email] Subject: Re: [Elecraft] OT: Mobile operation "bible" I have found Ham sticks work fine on 20 and up but I won't talk about what happen to a 75 meter ham stick we were tinkering with and forgot to turn off the mobile amp! ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
Re: OT: Mobile operation "bible"
|
|
Jeeze, that's QRP.
My Elmer was a neighbor, Lee, W7UVR. Before SSB he ran a 4-1000A high-level modulated in his mobile. I can assure you that there weren't any toilet tank balls on his antennas. The need for those is IMHO, an old wives tale. After SSB, the 4-1000 ran as a linear. There was 5KW of generator and while stationary, the mini-beam was blown up to 30' above the roof. The mobile in motion antennas were a pair of whips, with remotely (driver's seat) motor tuned vacuum variables and silver-plated edge-wound inductors in the matching networks The car was a '55 Mercury station wagon with a bored and stroked '56 Lincoln engine and a truck rear axle and springs. There was one extra leaf in the spring under the side with the pole pig HV and modulation transformers. There is some more about him (which is a repeat of what I wrote) under "High Power Mobile" at http://www.k0bg.com/yesteryear.html and photos here: http://www.k0bg.com/gallery2/main.php?g2_itemId=1039 As to the question about where the wife sat, there was no wife. On 4/2/2016 12:22 PM, Mel Farrer via Elecraft wrote: > Yep, and I remember HWL running the ART13 and blew the poorly mounted SS tip off the whip at a convention. That makes me older than dirt..... > > Mel, K6KBE > > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
«
Return to Elecraft
|
1 view|%1 views
| Free forum by Nabble | Edit this page |