Maldol HMC-6 S and HMC-14 C Add On

-



I’ve been using the Multi band Maldol HMC-6 S antenna, for the last 3 years at my QTH as a stand by antenna and have been pleasantly surprised with its overall performance.

The Vertical Mobile/Portable antenna covers 6 bands, 40M, 15M, 10M, 6M (HF) and (VHF) 2M & 70CMS.

I’ve used it a lot for listening across the HF bands as well as some short wave frequencies, I’ve also put out some good signals and made some good DX contacts on 40M, 15M and 10M as well as 6M using a good ground plane system (20 foot Metal Container). It even Works well on 2M, I have not tried 70cms but the SWR appeared to be good across the band.

I have also got a range of Maldol Mono band mobile HF antenna’s and have been planning to try the HMC-6 fitted to the Toyota’s rear fixing instead of the mono bander’s. This has proven to be difficult to stop running the mono band Maldols, down to the good results that I can honestly say I have had. The Mono band Maldol,s especially 40M, 20M and 15M will be a hard act to follow for any mobile antenna.

This plan is now beginning to take shape mainly due to Phil M1PAC’s generous influence as Phil managed to obtain the HMC-14 C add on part, which replaces the 40M coil/whip. It turns the HFC-6 S into a 20M, 15M, 10M, 6M & 2/70CM banded antenna. Phil told me that since Maldol no longer make antennas it is virtually impossible to obtain a new HMC-6 S, but there are a few Ham Shops with a few accessories/add on bands if you look hard enough. I was definitely feeling lucky that day. If you want one, you will have to keep an eye on EBay etc.

M1PAC Phil gave me the Maldol 20M attachment as a gift, I was extremely surprised, very pleased as well as grateful as you know what! Thanks Phil, I owe you one!.

So the next stage will probably have to wait until the weekend when I can try it out on the Toyota’s, Yaesu FT-857. I am fairly confident it will work well, but I will know soon enough. If it performs as well on 20M as it does with the 40M section attached, I will be more than happy.

Any results will be posted here at HamRadioOperator.Blogspot.Com and PlanetHam.Org. Thanks for reading and have a great weekend!
73

Comments

Post a Comment

Popular posts from this blog

New DX Contact 0n 12 Meters

-
Image
Today I managed a nice QSO with Tom ZD7X who is located at St. Helena which is quite a distance away from my location. I managed to work Tom ZD7X with a 5/9 report operating my FT-767GX with my home brew 20m delta loop assisted with the MFJ-969 to tune the antenna with 50 watts on 12 meters. 12M is rarely open and I have only had a few QSOs on this band so I guess the new Cycle has begun at last! Good DX de 2E0HTS 73
Read more

Full Size Delta Loop for 20M

-
Image
I came across a simple delta loop design courtesy of dxzone found on the net some time ago and have been planning to give it a go for a while. This weekend I had a couple of hours spare, so I decided to give it a go using some 2mm multi strand wire cable, a dipole centre and a mixture of 75 ohm and 50 ohm coaxial cable. The delta loop is supposed to be resonant on 20 meters but I found it to be a little high so at present I am tuning the Loop with my mfj-969 which copes extremely well. The resonant frequency is 13.2 MHz at the moment so the next chance I get, I shall shorten the overall length making sure that each of the three sides are still equal in length, and hopefully adjusting the antenna for maximum performance ATU free for 14.2 MHz. I believe the miscalculation in the resonant length is probably down to the fact that my wire is covered in the plastic sleeving from the manufacturer which always effects the swr as I have noticed in past experiments with dipoles you always get sl
Read more

Homebrew 40/80 Trap Dipole Design

-
Image
This Antenna design was one that I used about 4 years ago, it worked exceptionally well on 80m and 40m. The size of the antenna makes a Half wave length on 80 meters, and with the traps a half wave on 40m with a SWR (standing wave ratio) of 1:1-1.5 across both bands. It worked well also on 20m with the use of an A.T.U (antenna tuning unit). I made my version of this antenna using 3mm multi strand copper cable which I left covered by the PVC insulation. The traps can either be home brewed using some 40mm diameter plastic drain pipe and winding wire around the pipe approximately 10 turns, then connected in line after the 10 metre lengths. Or the alternative is to purchase some commercially made 7.1 MHz traps, and fit them in line the same way. The antenna can be fed with 50 ohm coax with a home brew balan or again a commercially purchased balan. The wire lengths of the dipole are 2x 10 metres and 2x 6.7 metres as shown on the diagram above. This antenna can be mounted quite low to the gr
Read more