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299 [2007/03/13 15:06]
n5na
299 [2007/05/21 00:41]
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-====== Talking Counter Model 299 ====== 
-{{299.jpg?​150|}}{{299rear.jpg?​150|}} 
  
-===== Description ===== 
-Model 299 Talking Counter is a self-contained frequency counter, speech synthesizer and audio amplifer/​speaker system which enhances operating convenience and pleasure for the blind ham operating in the HF spectrum. ​ It can be used with any HF transceiver,​ analogue or digital, or with any VHF transceiver with an appropriate prescaler. ​ Also, it can be used with any signal generator below 22 MHz as a test instrument. ​ When used with TEN-TEC transceivers employing 9 MHz I-F, special built-in presets allow proper megahertz readout of the operating frequency, even though the counter is reading VFO output. 
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-===== Features ===== 
-  *Synthesized speech readout of any rf voltage applied to the input between 1 MHz and 22 MHz.  This includes the 10 meter band on TEN-TEC transceivers since the VFO operates below 22 MHz. 
-  *Choice of MHz and kHz format or only kHz portion for quick repeat cycle. 
-  *Choice of one-time or repeat cycling. 
-  *Count to four places after decimal (100 Hz).  When used with analogue transceivers,​ Model 299 increases readout accuracy. 
-  *Self-contained audio amplifier and speaker. ​ No need to tap into transceiver audio system. 
-  *MHz present switch to adapt to TEN-TEC Models [[545]]/​[[546]],​ [[540]]/​[[544]],​ and [[509]] transceivers. 
-  *Straight counter position disables all presets. 
-  *Only connection to transceiver is VFO output signal. (250 mV minimum) 
-  *Runs on 12 VDC. 
-  *Add-on accessory LED readout provides visual as well as audible output, converting unit to ordinary counter. 
-  *Speech tonal quality adjustable. 

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