I want to use two hamsticks.

[W1KPM]

in my truck I was wondering if i could use a 20 meter hamstick and a 40 meter hamstick at the same time to one radio connected with a SO-239 tee. right before they hook up to the two antennas. I would think it would work but dont know. i am going by my past experence with building a multiband fan dipole.. so if im on 20 it would resonate the 20 meter hamstick as for the 40 meter hamstick on the 40 meter band. or should i just put in a coax switch???

[KG0UFO]

Hustler does a similar thing with their mobile antennas, connecting multiple bands on one connection mount, using one coax. I have done what you plan to do. I connected a 20m and a 40m Hamstick to one connector and coax. It worked like the fan dipole method, and worked fine.

73, Mike
KG7UFO

[W1KPM]

thats great. I thought it would. I wanted to see if someone else has done this. So i will give it a go.

[KG0UFO]

BTW: I've even connected a 40m Hamstick to my Mosley three element tri-bander (20-15-10) beam and had okay results, with a low SWR on 40m. I use a mobile Hamstick mount to connect the coax to the beam (clamp mount ground side to ground dipole element, and connect a wire attached to bottom of screw-in stub to other half of dipole active element). I can then screw-in any band Hamstick, adding a band to the beam, with the beams ground elements acting as the ground radials. Not a conventional method, but it works just fine, despite what those complicated antenna books might say.

73, Mike
KG7UFO

[W5DXP]

If you have an antenna analyzer, check to see where the next resonant higher frequency is for the 40m hamstick. It is possible for it to be self-resonant on/near 20m which is a very lossy situation.

[W9CAC]

I have several hamsticks that I have used with a rather different set of results. I have a MFJ-259 and have tuned pairs of hamsticks as dipoles, but when combining a 20 meter hamstick with a 20, well, I have seen a rather large change in the bandwidth of both frequencies. You need to be meticulous in your tuning, most of my results show an above 2.0 for an SWR except for the narrow range that you tune for. Best results has been 2 hamsticks of the same frequency on the tee, offers the best SWR and bandwidth.
I just built an 18' vertical multiband with 12 radials from 8' to 32', better than all my ham sticks put together.

73' and good luck.

[W9GB]

G4ILO Stealth Antennas
http://www.g4ilo.com/stealth.html

Other small HF antennas often suggested for attic installation or temporary outdoor deployment which I consider to be a waste of time and money include:

Hamstick dipoles
These are dipoles made from two helically wound mobile whips mounted back to back. The problem with these is that they are simply too inefficient. Helical whips have been tested to be more than 10dB down on a full sized dipole.

[W5DXP]

Hamstick dipoles These are dipoles made from two helically wound mobile whips mounted back to back. The problem with these is that they are simply too inefficient.

True for hamsticks below 14 MHz but at 14 MHz and above, a hamstick dipole is reasonably efficient. On the air, it's hard to tell a 10m hamstick dipole from a 1/2WL dipole.

[W1KPM]

OK here is what i tryed it yesterday and the results. I have my radio coax goes from radio to the back and splits with a Tee. then a coax going to the 10 meter hamstick and a coax going to the 40 meter hamstick. i put my analizer on and 40 seemed to tune ok but on ten meters i could not get better then 3.0 swr no matter how much i adjusted the whip, so it looks like i will be putting in a 2 way antenna switch.