Call Search
     

New to Ham Radio?
My Profile

Community
Articles
Forums
News
Reviews
Friends Remembered
Strays
Survey Question

Operating
Contesting
DX Cluster Spots
Propagation

Resources
Calendar
Classifieds
Ham Exams
Ham Links
List Archives
News Articles
Product Reviews
QSL Managers

Site Info
eHam Help (FAQ)
Support the site
The eHam Team
Advertising Info
Vision Statement
About eHam.net



QSL Managers
     

Ham Links
     


  Home Help Search  
  Show Posts
Pages: Prev 1 2 3 [4] 5 6 7 8 9 ... 28 Next
46  eHam Forums / Antennas and Towers and more / RE: Multi-band (?) vertical antenna on: July 20, 2012, 08:11:31 AM
Maybe something like the MFJ-1976 telescoping vertical would be ideal - adjust length of element for 6,10,12,15,17,20m
A Full 1/4 wave for each band. This antenna stays where adjusted & works great ground mounted with has many ground radials has you can fit.
Also works very well elevated about 6ft with 2 1/4w radials also held up on ends 6ft - great for a single band - I prefer 17m or 20m this configuation. Catch you on the airwaves with mine. Grin

http://www.mfjenterprises.com/Product.php?productid=MFJ-1979

73 K1WJ David Cool
47  eHam Forums / Misc / RE: First HF Radio? on: July 18, 2012, 08:03:55 AM
$300 bucks is tough - save more $$ - you still need a power supply, coax & antenna.

You should look at:

The Alinco SR8T - new at HRO for $530 - shipped to your door. 100w HF rig. See reviews here on eham.

Power supply - Astron RS-35M or the SS-30m - both good to go - Price $189 or $149 at HRO.

Then get some good coax - 100ft is common ( use as little as needed to get job done) however I like to see my antenna at least 50ft away from my operating position. - 213, or 9913 or 8x if want to save some $, but still decent.

Many antenna options - a vertical in many cases is the simple solution - give the antenna type the greatest consideration - But I have operated with anything from a MFJ hamtenna to a 3 element beam, vertical or wire antenna.

73 K1WJ David Cool
48  eHam Forums / QRP / RE: TenTec All Mode QRP rig on: July 13, 2012, 07:50:20 AM
Not having 12m is bunk - Pics of radio - looks cheap, if price over $900? Too much $$$. 73 David
49  eHam Forums / Elmers / RE: Yaesu FT-60r Question on: July 12, 2012, 10:24:13 AM
I have a vx3r & the battery symbol on the display will blink when low or show one bar - alot of times I'll just wait until power fails - ht will not stay on - then charge it. 73 Dave
50  eHam Forums / Station Building / Icom 718 vs Alinco DX-SR8T on: July 11, 2012, 12:40:11 PM
Which is a better Rig?

Seems like the Alinco DX SR8T at $529 vs the Icom 718 at $739 would be the better deal.

What does the Icom give you for $200+ more?

73 K1WJ
51  eHam Forums / QRP / TenTec All Mode QRP rig on: July 11, 2012, 08:18:57 AM
When is the TenTec all mode QRP rig coming out? 10 watts?  73 David
52  eHam Forums / Antennas and Towers and more / RE: HF Vertical: Ground Mounted or Elevated. Will it matter with this antenna? on: June 29, 2012, 08:42:33 AM
Last summer I used a 20m MFJ Hamtenna ( Mobile Antenna ) Mounted 2 ft off the ground - then had single 1/4wave 20m counterpoise also 2ft off the ground held up on end by camera tripod - can see general set up on QRZ  pic on upper Right under call K1WJ.
Made hundreds of contacts - had set up in back yard of Arizona HOA for 8 months.
Now at new house going to set up a MFJ 2286 - 6m-40m vertical - has 17 foot whip - telescoping. Should be interesting, may try ground mounted - for multi band use - or elevated with single counterpoise maybe elevated 4-6 ft this time, for single band use, most likely 20m.

73 K1WJ David Cool
53  eHam Forums / Elmers / RE: How often should I call CQ? on: June 20, 2012, 08:16:06 AM
On ssb voice, call cq for about 10 seconds - wait 5 to 7 seconds on receive - call again.

I will do this continuous for about 3 to 5 minutes - if no response - look for activity on the band to see if it may be open.

Best band to call cq on is 20 meters or 40m - more likely band is open.

More stations need to call cq more often - bands could be open & no one is calling........ 73 K1WJ David Cool
54  eHam Forums / Elmers / RE: How should I ID? on: June 19, 2012, 04:05:58 PM
On HF: I just state " CQ CQ CQ K1WJ State of Arizona calling" - works for me - never a misunderstanding. 73 Cool
55  eHam Forums / Antennas and Towers and more / RE: Firestik-style mobile antennas paired as a dipole? on: June 18, 2012, 08:25:01 AM
They work good - Try the MFJ 347 Dipole mount - or the MFJ 2220 comes with 2 20m HF sticks & dipole mount.
Have used myself the 6m/17 & 20m versions - all work good for quick limited space set ups.
The 20m version at 27ft high would generally out perform a Hustler 4BTV with 32 ground radials.
6m through 20m versions works decent - cant speak about 40/80m - did not think it was worth tryng.

73 K1WJ Cool
56  eHam Forums / Antennas and Towers and more / RE: Why the Bladed Spiders on 5BTV Vertical? on: May 23, 2012, 02:43:39 PM
Capacity hats will reduce the amount of inductance necessary to resonate the antenna, and increase bandwidth. But contrary to popular belief they add nothing to the radiation resistance. For a component of an antenna to increase radiation resistance it must itself radiate.

It is true if you put a Capacity hat on top of a short mobile antenna it will change the antennas efficiency but what happens is the current on the radiating element moves further up to the top.

Because the current is now further away from ground this lowers ground loss. So the ratio of radiation resistance to ground loss and Omni Loss resistance, which is the reduction in the amount of inductance needed for the loading coil, goes down.

73 K1WJ
57  eHam Forums / Elmers / RE: TS-990 on: May 18, 2012, 08:37:05 AM
Bottom line: Kenwood is back & kicking some ass. The world has been waiting for this radio a long time........73 K1WJ David Cool
58  eHam Forums / Company Reviews / RE: Ebays new protection policy Danger Will Robbison on: May 17, 2012, 12:49:40 PM
I dumped e bay when they forced every one to use Pay-pal - E bay = SUCKS.

73 K1WJ Cool
59  eHam Forums / Antennas and Towers and more / RE: Mfj 2286 backpack antenna on: May 09, 2012, 10:12:16 AM
Joe,

I just ordered one - mine will be ground mounted with 16 ground radials of various lengths in back yard of AZ HOA.
Should work great on 6-20m - adjusted for 1/4 wave. Will submit review here in a month or so.

Best 73 K1WJ - David
60  eHam Forums / Antennas and Towers and more / RE: Fan Dipole on: April 27, 2012, 08:26:46 AM
Soldering them together is fine - the current will go to the correct wire based on frequency.

On 20m at the radio - once transmit - current will go to the 16.5ft wires.

On 10m - it will go to the 8.5ft wires.

Good to use a insulated separator - to keep wires away from each other - close to feedpoint - where soldered.

Wires will be inverted to some degree - top wires more flattop - than set below.

With inverted wire length for freq. should be about 5% shorter - than formula = 468/freg.

Try to get apex at 33ft minimum for 20m.

Made a few fan dipoles - always come out good.

73 K1WJ David
Pages: Prev 1 2 3 [4] 5 6 7 8 9 ... 28 Next
Powered by MySQL Powered by PHP Powered by SMF 1.1.11 | SMF © 2006-2009, Simple Machines LLC Valid XHTML 1.0! Valid CSS!