I had some spare time and some new toys that I have been wanting to test. I hooked up my FT 857D to my 'spare' 25 foot coax and a 3/8 x 24 Vice Grip antenna mount for some testing with reception reports from PSK REPORTER web site. All antennas were tested on 20 Meters at 20 Watts PSK and results had a couple of surprises.
First I tested a BUDDIPOLE long whip only as I got it to use with my SUPER ANTENNA MP1's tuning coil and not as a full Buddipole antenna. Link to BuddiWhip : http://www.buddipole.com/lotewh.html
This whip is 22 inches collapsed and 110 or so when extended , also quite strong ,though the KNURLED BASE SLEEVE is good for making it even tougher. The whip can be measured to 48 inches or so for 5/8 wave TWO METER use as it is a bit long when collapsed for 1/4 on TWO METERS and 50 to 53 inches or so make for good 6 meter antenna also. My AT100 PRO LDG antenna tuner tuned this whip on 40 meters and I checked in on the Navy Net as I was a tad early for 20 Meters to stabilize. Now for 20 meter PSK on the 110 inches of whip...Don't try this without a antenna tuner providing a good match or your radio will suffer.See the sun had not fully come up at start of test.
Next was the 40 meter MFJ Whip test ...while the LDG tuner did tune all bands from 6 meters to 40 meters ...20 meters proved to be dead as the 1/2 wave of antenna was not an effective radiator even though the 20 meter Ham stick from MFJ worked GREAT.
This is photo of the 20 Meter MFJ whip test as the 40 meter was not effective...even though it did 'tune' with the LDG tuner.
And next I tested the SUPER ANTENNAS MP1 as this is about the same size yet can be used without an antenna tuner as the sliding coil on the antenna can 'tune' from 6 to 40 meters and the whip alone will work ,when collapsed to proper length,on UHF and VHF frequencies...and optional 60 and 80 meter coils are available too.The noise floor really came up as the time of day and fewer people could hear me due to noise and the tiny size of the antenna.
I think all three successful antennas were acceptable and the average user may find the 'one antenna,one band' of the MFJ whips acceptable for one band at a time and acceptable performance without a antenna tuner...ONCE the owner has tuned then to length with an SWR METER or an ANTENNA ANALYZER.
Buddipole 9 1/2 foot whip : http://www.buddipole.com/lotewh.html
Super Antennas : http://newsuperantenna.com/MP1-SuperStick-Portable-Vertical-Antenna-Deluxe/
MFJ Ham Whips : https://www.dxengineering.com/search/product-line/mfj-monoband-mobile-hamtenna-whips
LDG Antenna Tuners : http://www.ldgelectronics.com/
PSK REPORTER : https://pskreporter.info/pskmap.html
Vice Grip antenna mount (HANDY) : https://www.amazon.com/Vise-Antenna-Mount-PL-259-Cable/dp/B001JT5S3U/ref=sr_1_1?ie=UTF8&qid=1492445991&sr=8-1&keywords=vice+grip+antenna