I have had a 207 for a a long time as like most MFJ stuff the build quality is poor and i tend to treat them as a half made kit that needs to be re engineered. i have had a few tuners and other things and all had loose pots or switchers, screws poking though and shorting things and such. Buy they are cheep and when fixed are good value for money.
I read the review of the 207 and he must have a bad one. I have no problem tuning mobile whips on 160 and 80 and can even dip an crystal. The Osc is quite stable for what it is and has no fm mod and if tuned in on an ssb set sounds very clean. I often use it as a portable sig gen, no lab quality stuff and fiddly to get on frequency but with an dig readout rx you can set it to a within 100 hz on the lower bands, for a while anyhow. Great for taking on trips if you want to mess with antennas or may have to align sets. You have to keep in mind all it measures is if something is resonant at 50 ohms. Needs full batt power for proper readings and i run mine of aa cells in a holder taped to the case.
I have had a 207 for a a long time
ReplyDeleteas like most MFJ stuff the build quality
is poor and i tend to treat them as a half made
kit that needs to be re engineered. i have had a
few tuners and other things and all had loose
pots or switchers, screws poking though and
shorting things and such. Buy they are cheep and
when fixed are good value for money.
I read the review of the 207 and he must have a
bad one. I have no problem tuning mobile whips on
160 and 80 and can even dip an crystal. The Osc
is quite stable for what it is and has no fm mod
and if tuned in on an ssb set sounds very clean.
I often use it as a portable sig gen, no lab quality
stuff and fiddly to get on frequency but with an
dig readout rx you can set it to a within 100 hz
on the lower bands, for a while anyhow. Great for
taking on trips if you want to mess with antennas
or may have to align sets. You have to keep in mind
all it measures is if something is resonant at 50
ohms. Needs full batt power for proper readings and i
run mine of aa cells in a holder taped to the case.
vk3ase
The confirmation that the '207 wasn't meant to perform as mine did lead me to fix it properly:
ReplyDeletehttp://www.vk2zay.net/article/198
The buffering is still pretty darn bad and the SWR meter is only a very rough guide, but the unit it now much more usable and useful, thanks!