"Stewart Pinkerton" wrote in message
...
On Thu, 27 Apr 2006 17:49:12 +0100, Chris Isbell
wrote:

On Thu, 27 Apr 2006 13:44:00 +0100, "Serge Auckland"
wrote:

If the signal strength is -52dBm into 75 ohms, then that's a voltage
level
of 687uV which is a bit low.

My Sony ST-S311 tuner gives the signal strength in dBf, which I
believe is relative to one femtowatt (10E-15W). If my calculations are
correct, then 52dBf would equate to 109uV, which is not very good at
all.

The OP's manual should hopefully define the measurement units used.

The trouble here of course is that Keith is obsessed with
measurements. What really matters is how the signal *sounds*! Is it
clean, with no multipath distortion and no noticeable hiss? Then you
have enough signal strength. :-)



You couldn't be more wrong - I almost *never* measure anything and only go
'by ear' in the final analysis. The only reason I asked is that I discovered
if you hold the Mode switch (Stereo/Mono) down for a few seconds it displays
the 'signal strength' and, no, before anybody points it out - I don't
trust/believe it is necessarily anything like accurate or meaningful.

The tuner sounds fine, the numbers are academic (it only reads 50 dB this
morning)....