31 lines
1.3 KiB
Plaintext
31 lines
1.3 KiB
Plaintext
HR2600.2
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Date: Sat, 24 Nov 90 22:55:50 EDT
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From: kd2bd@nn2z.nj.usa.na
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Message-Id: <13461@nn2z.nj.usa.na>
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To: all@allbbs
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Subject: Uniden HR2600 on VHF/UHF
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Hello Folks!
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I recently purchased a Uniden HR2600 and a Microwave Modules MMT 144/28
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2-meter linear transverter and got both interfaced and working well.
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The HR2600 has an output power of 25 watts PEP on SSB, CW and 10 watts on
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AM and FM. The transverter requires only 0.25 to 25 mW of 28 MHz drive for
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proper operation. In an effort to reduce the HR2600 output level to the
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level required by the transverter, I removed PB-100, a small double-sided
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copper coated circuit board located under the top cover that supplies +Vcc
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to the driver and final amplifier stages. I then soldered a jumper between
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TP2 and TP4, the outermost prongs that hold PB-100 in place.
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This action provides the HR2600 driver with full +Vcc, but removes +Vcc
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from the MRF 477 final power amplifier. There is more than enough driver
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energy fed through the final to excite the transverter in this configuration.
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I've received good signal and audio reports from all the locals when using
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the transverter and the HR2600 with this simple modification. I believe this
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modification could make the HR2600 useable with other transverters as well.
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73 and Good DX! de John, KD2BD
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