Cushcraft R product reviews by real people like you. Only at – is a Web site dedicated to ham radio (amateur radio). The Cushcraft R multiband vertical covers the 6, 10, 12, 15, 17 and 20 meter bands. The R is a no ground radial antenna. It includes many of the. Specification. Brand: Cushcraft Model: R Frequency Band: 6 / 10 / 12 / 15 / 17 / 20 m. Gain: 3 dBi. Type: No Radial Vertical. Description. The R is a 6.
I used a polyester repair set for automobile and applied the 2 component polyester resin with a brush. Cushvraft vertical passed a test with a borrowed 1.
Would I buy another one probably not. Cushcraft rate it fairly highly for adverse conditions, and while it hasn’t exactly been hurricane season over here in the UK recently, on one or two occasions it has been cuschraft windy, I’m glad to say the R hardly swayed at all, perhaps my location helps The antenna performs well as long as you have the expectation that some of the bands are not very broad banded. Construction is good, not great.
Shortwave Vertical Antennas from Cushcraft
To submit a review, please Login. Within two weeks, went up to the roof and gave 1. On 20 meters you can select the top KHz or bottom KHz of the band. Cushcraft R The Cushcraft R antenna covers 6 through 20 meter with no ground radials.
Yes a vertical antenna gives some more local noise, but the signals are so good that I do not have much trouble with them. MFJ-Cushcraft could not provide a estimate for a replacement part The SWR was varying and increased on some bands. The polyester surface has the tendency to “evaporate” and the bare glass fibres then are like a sponge attracting absorbing dirt and moisture.
The result is lower loss and wider bandwidth. A bare weather beaten insulator. On 20 meters you can select the top KHz or bottom KHz of the band. The tube was removed, the inside of the insulator applied with layers of 2 component polyester resin until a minimum variation of fit.
Repeat this process with the repaired R5. But the R is the best DX antenna I have had so far. We get a lot of high winds here and the antenna has never giving me trouble there. This changed the dielectric constant of the capacitor, thus moving the resonant frequency, and the SWR increased dramatically. All R5 parts of the model. While 10 meters has not been the hottest band in the Amateur Radio toolkit of late, Iran apparently has found it an ideal cushcrwft to operate various rada The traps should be carefully loosened and the contact area cushraft all other aluminium hardware should be cleaned cushcdaft Brillo pads steel wool impregnated with soap.
I replaced the two 86 pF caps in series with a single transmitting high current 47 pF doorknob type.
Machined aluminum clamps and UV stable insulators guarantee years of reliable service. The antenna does not require traditional ground radials, so no need for unsightly radials and is so light a normal scaffold pole would be ideal to mount the antenna.
There are no traps used on 6, 10 and 15 meters for maximum efficiency and power handling. Top Five Amateur Radio Reviews of Contrary to the other two models, this antenna has no additional capacity. I had a little difficulty opening the box at cushcrraft bottom mainly due to the use of steel screws rather than stainless – but again, given that it had been in the air for some time this was forgivable – I swapped them over anyway as a matter of course. The R comes with the standard warranty of one year from purchase and their technical support team can help you with any issues.
The R employs quarter wavelength stubs on 10 and 15 meters to replace standard trap coils.
R CUSHCRAFT R 6,10,12,15,17,20m NO RADIAL HF VERTICAL ANTENNA
The capacitors paralleling the sealed coils are coaxial types with a rod, a tube and a dielectric tubing in between. The antenna wobbled due to the gap caused by evaporation cusncraft the polyester. The fibreglass base insulator fig a is a polyester-coated tube. Yagi only outperforms this antenna if the beam is pointed to the station.