The TW-1 Talking Wattmeter provides an aural spoken indication
of power and SWR using a digitally recorded voice. It is ideal for
the vision-impaired, for those of us in the “bi-focal set”, or just
for those times when you need to be looking somewhere else. At the
press of a button, the TW-1 speaks the forward power, reverse power
or SWR. Three languages are available: English, Spanish and German.
It includes its own internal speaker; no external audio hookups are
needed.
The TW-1 also offers a continuous tone mode for tuning. Simply press
and hold the Forward button, and a tone indicates power. As you
adjust your amplifier or antenna tuner, a higher tone indicates
higher power. This is just the thing for peaking your amplifier
while keeping a close watch on the grid current.
You can select either long or short voice reports. Long reports
include descriptors like “thousand” or “hundred” and end with
“forward watts” or “reverse watts”. Short reports speak only the
numerical value of the measurement you’ve selected for a quick
reading.
The TW-1 needs just 1 watts to operate, but will handle up to 2000
watts PEP, making it suitable for everything from QRP to the largest
amplifiers in amateur service. The TW-1 is accurate to +/- 5% of
reading across the entire power range; this may very well be the
most accurate wattmeter you own. Resolution is 1 watt or 1% of
reading (whichever is higher).
The TW-1 is microprocessor controlled, and can easily be upgrade in
the field with a simple chip exchange. It requires 11 – 15 volts DC
at 200 mA maximum, but consumes almost no current when not speaking. |
| Specifications |
 | Speaks Forward and Reverse power in watts, as well as SWR
|
| Continuous tone for making amplifier or tuner adjustments
|
| Power range: 0 – 2000 watts PEP, autoranging |
| Accuracy: +/- 5% of reading (measured at 14MHz) (+/-10% on
6M)
|
| Resolution: 1 watt or 1% of reading
|
| Languages: English, Spanish, German
|
| Power requirements: 11 – 15 volts DC at 200 mA maximum |
| Idle current (not speaking): <100 uA |
| Frequency range: 1.8 – 54 MHz
|
| Size: 5” deep x 4.5” wide x 3” high
|
| Weight: 1 lb. |
|
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