[Test-Equipment] JERROLD FIELD STRENGTH METER

[Ron Youvan]

k0ewu9 at juno.com wrote:

> I bought a Jerrold FS meter at a HAMfest (with my eyes wide open) and was
> told "works OK, battery needs a charge".

> This I knew better as the original nicads were long gone.  Operating the
> thing on an external battery showed no life

> except a bit on the fm bcst  range. After a good cleaning of the
> attenuator switches the fm area came to life.

> Then the TV low area was tuned--nuttin.  Some one had been in the band
> switch box as several screws were missing!

> So now- shall I attempt to repair this or just put it back as was.?  I
> want to use it for the vhf and uhf ham bands

> so I need some data such as circuit etc...   the unit is  JERROLD 727 FS
> METER--------------

> Can anyone help?

   I don't know the instrument, but `TV field strength meters' measure 
the length of the sync pulses on the visual modulation.  DIGITAL TV HAS 
NO SYNC PULSES!
-- 
    Ron  KA4INM -   Every HAM should have at least one desk MIC,
                    it's the perfect place to hang the cans when
                    CW is "arm chair copy."