Hafler IRIS Owner's Manual - Record Security
RECORD SECURITY
As explained in the “remote” section of the IRIS Preamplifier
Manual, if RECORD SECURITY is in effect (either RECORD
switch is in on the IRIS Preamplifier), the Tuner will refuse
all IRIS remote commands, including CLR. The
Preamplifier’s red MUTE legend will remind you of this by
its distinctive interrupted-flashing mode.
ADDITIONAL INFORMATION
As described in the section “Antenna Connections”, the
IRIS Tuner is supplied with a ribbon dipole antenna that will
provide adequate reception in most situations. To maxi-
mize the reception potential of this simple antenna, a few
guidelines should be followed:
- fully extend the “arms” of the dipole
- mount the antenna as high as possible
- mount the antenna away from large metal structures
- orient the antenna perpendicular to the direction of the
radio station’s transmitter.
Some experimentation will be necessary in less than op-
timum reception areas, or where reception of a distant
station is desired. Often, an adjustment of a foot or so in
antenna position can affect reception noticeably.
A number of alternate indoor antennas are available, from
the traditional “rabbit ears”, to antennas designed specifi-
cally for high quality FM reception. Although these units
offer little or no advantage over the ribbon dipole in terms
of gain or directivity, they are typically table-mounted,
offering greater flexibility in placement and mobility.
For the ultimate in FM reception, especially in difficult
reception conditions, an outdoor antenna is recom-
mended. There are two basic types of “poor” reception
conditions. Urban areas may be characterized by strong
signals, but those signals can be interfered with by reflec-
tions from tall structures. Rural areas may be characterized
by weak signals.
There are many types of outdoor antennas. Some may be
optimized for directionality, while others may be optimized
11