[Boatanchors] Need suggestions and question on antenna for DX-100

[Warren Elly]

Hey Bob...I'd recommend the loop as another gentleman suggested.
I have a full wave cut for 3885 and its been up ten years. Fed with  
32 and a half feet of 470 ohm pvc covered ballance feedline, with a  
centaur 5kv 4 to 1 balun feeding rg8 into the hamshack where I use a  
dentron mt-3000 tuner.
Its an extraordinary antenna, on a city lot, that forced a "tilt" on  
the north side to a vee. (not enough land to put the whole thing up  
four sided) The feedpoint is up fifty feet, and the north side vee is  
about 12 feet off the ground.
Point is, it doesn't have to be perfect, it just has to be the  
correct length.
It is tuneable 160-6 meters, though, as the gentleman pointed out,  
its better feed as a T for 160. This requires bypassing the balun,  
and shorting the ballanced feedline, fed off the "random wire or long  
wire" port of your tuner.
good luck and 73...the loop is the hot setup!!

Warren W1GUD
Tampa

On Feb 18, 2007, at 4:43 PM, James M. Walker wrote:

> Howdy Bob,
> I run several DX-100s, and use a E.F. Johnson 1 KW matchbox, also use
> from time to time the 250 watt Matchbox. My rigs are A) running off  
> of a
> 0-130 VAC variac, with the input to the DX-100 set at 115 VAC in  
> standby
> the variacs I use are the auto transformer type, so xmit leaves the  
> AC input
> at 115.
>
> As for power output, into the dummy load at 115 VAC and tuning per  
> the manual
> the output of my rigs is right at 150 watts. Antenna is a 153 foot  
> longwire, end fed
> from the KW matchbox. It works, straight-forward, I would suggest a  
> heavy
> duty tuner either Commercial or Homebrew. I keep a wattmeter in the  
> line at
> all times to monitor FWD/REV power and check for things like ice  
> build-up.
>
> Of course as always YMMV.
> Jim
> WB2FCN
> http://eshop1.chem.buffalo.edu
>
> "110 watts out on 10 AM, and still running!"
>
> ----- Original Message ----- From: "Bob Young" <youngbob53 at msn.com>
> To: <heathkit at mailman.qth.net>; <boatanchors at mailman.qth.net>
> Sent: Sunday, February 18, 2007 2:07 PM
> Subject: [Boatanchors] Need suggestions and question on antenna for  
> DX-100
>
>
>> I'm a new ham, will get my upgrade to general after the 23rd. My  
>> question is, can I use a 400' LW for a transmitting antenna with a  
>> DX-100? It's fed with RG-58. Should I get an antenna tuner and SWR  
>> meter for this if it is OK to use? If so any suggestions? This  
>> would be temporary until I get a dipole or something like that. I  
>> would like to be able to transmit AM on 160 and 80 meters among  
>> other bands. I have the room for a full length 1/2 wave 160 meter  
>> dipole in my back yard but it is not the easiest thing in the  
>> world to do. I wouldn't be able to get it up much over about 30'  
>> either.
>>
>> thanks,
>>
>> Bob Young
>> KB1OKL
>>
>>
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>
>
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> Assistance: dfischer at usol.com **         $$ For vintage radio info,  
> see the HCI web site $$      http://www.w9wze.org