This is an old revision of the document!


Handheld 2m Transceiver Model 2591

Description

2 meter handheld transceiver covering 143.500 to 148.995 MHz in steps of 5, 10, 15, 25, or 30 kHz. Includes 10 memories which store operating frequency and transmitter offset. The tenth memory can store oddball splits. Capacity storage allows 30-second battery swap without losing memories. Band scanning and memory scanning included.

Reviews

Processor Care

From Ten Tec Reflector June 19, 1997

After a exchange of e-mail with Dale, KG5U, I decided to post this short note as he'd queried me direct about what causes processor death in the 2591, TT920, and AT920 handheld Ten-Tec VHF transceivers. As noted before, the main processor chip for these rigs is no longer available and cannot be replaced should one quit operating.

According to our service department, the main cause of processor death is application of 12 or 13.8 VDC to the transceiver. The battery pack and DC input for these rigs are 9 VDC, and higher voltages will eventually take the processor chip out. These older rigs show up at hamfests without a manual, new owner sees DC input, puts 12V on it, voila - dead radio.

A lesser warning is to leave the power turned off when clipping the NiCd battery pack on (as noted in an addendum to the original manual).

Thank you !

Scott Robbins, W4PA Amateur Radio Sales, Ten-Tec, Inc.

Specifications

General

  • Frequency Range: 143.5 - 148.995 MHz
  • Channel Steps: 5, 10, 15, 25, or 30 kHz
  • Memories: 10
  • Non-standard Split: One
  • Emission Type: F3
  • Voltage Requirement: 8.4 vdc, 450 maH (NiCad battery pack)
  • Case Size: 6.67"H x 2.6"W x 1.6"D
  • Weight: 17.5 ounces with battery pack

Transmitter

  • R.F. Output Power: Hi - 2.5 watts, Lo - 300 mw
  • Modulation: Variable reactance direct modulation
  • Frequency Deviation: +/- 5 kHz
  • Spurious Radiation: More than 60 dB below carrier
  • Microphone: Built-in condenser type
  • Current Drain: Hi power - less than 700 ma, Lo power - less than 375 ma
  • Memory Drain: Less than 15 ua

Receiver

  • Circuit Type: Double conversion superheterodyne
  • Intermediate Frequencies: 10.7 MHz, 455 kHz
  • Sensitivity: Better than 0.5 uV for 20 dB quieting; squelch less than 0.4 uV
  • Selectivity: More than +/- 7.5 kHz @ -6 dB, less than +/-15 kHz @ -60 dB
  • Spurious Response: Better than 50 dB
  • Audio Output: 325 mw @ 8 ohms
  • Current Drain: Squelched - 25 ma, maximum audio - 175 ma

QR Code
QR Code 2591 (generated for current page)