TW-2 Talking Wattmeter for 50 MHz, 144MHz, 220 MHz and 440 MHz
The TW-2 Talking Wattmeter is the companion unit to our popular
TW-1. It provides an aural spoken indication of power and SWR using
a synthesized voice in the VHF and UHF ham bands. 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. It's
also perfect for mobile operation; you can check your power and SWR
and still keep you eyes on the road.
Simply set the band you want to use, and at the press of a button,
the TW-2 speaks the forward power or SWR: "The Forward Power Is One
Hundred Watts". Three languages are available: English, Spanish and
German. It includes its own internal speaker; no external audio
hookups are needed.
The TW-2 also offers a continuous tone mode for tuning. Simply press
and hold the Forward or SWR button, and a tone indicates power or
SWR reading. As you adjust your transmitter or antenna tuner, a
higher tone indicates higher power or SWR. This is just the thing
for peaking your satellite uplink amplifier while keeping a close
watch on the collector current. It’s also great for making those
adjustments to your mobile antenna.
You can select either long or short voice reports. Long reports
include descriptors like “thousand” or “hundred” and end with
“watts”. Short reports speak only the numerical value of the
measurement you’ve selected for a quick reading.
The TW-2 will handle up to 250 watts with a resolution of 0.1 watt.
The TW-2 is accurate to +/- 5% of the reading across the entire
power range; this may very well be the most accurate wattmeter you
own.
The TW-2 is microprocessor controlled, and can easily be upgrade in
the field with a simple chip exchange. It requires 7 – 15 volts DC
at 200 mA maximum, but consumes almost no current when not speaking
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| Specifications |
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Speaks Forward and Reverse power in watts, as
well as SWR |
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Continuous tone for making amplifier or tuner
adjustments |
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Power range: 0 – 250 watts PEP |
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Accuracy: +/- 5% of reading across entire range
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Resolution: 0.1 watt |
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Languages: English, Spanish and German |
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Power requirements: 7 – 15 volts DC at 200 mA
maximum |
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Idle current (not speaking): effectively zero;
less than one microamp |
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Frequency range: 50 MHz 144 MHz, 220 MHz and 440
MHz ham bands |
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Size: 5” deep x 4.5” wide x 3” high |
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Weight: 1 lb. |
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