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Author Topic: Older Kenwood HT on wall power -- how?  (Read 2370 times)
KC2ELS
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« on: December 01, 2001, 03:32:31 AM »

I have two Kenwood HT's -- a newer TH-D7 and an older TR-2600A.

The TH-D7 can run on wall power continuously.  A wall wart to 13.6VDC to a PG-3J to the unit and it's all good.

I don't know about the TR-2600A.  I bought it secondhand and the charger
connects to the battery, not to the HT itself.  Does anyone here know how
to connect this to wall power so it can run continously?  It's going to be attached to a TNC for APRS and other packet stuff until I can afford a 'real' radio for home.

Thanks!
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WB2WIK
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« Reply #1 on: December 04, 2001, 11:15:19 AM »

I'd just plug in the charger and leave it plugged in (to the battery) permanently, unless you intend to leave the HT unattended for several days, in which case I'd disconnect it, then reconnect it for use again.

The battery (assuming it's good), with a float charge on it from the wall wart charger, will power the 2600 forever for packet/APRS work, since the nature of those modes is very intermittant, low duty-cycle with brief transmit periods.  I ran a 2600 for years this way as my "main packet station," and although the battery did eventually die, it took about four years for that to occur, and I'm not sure they ever last longer than that!

73 de Steve WB2WIK/6
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KC2ELS
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« Reply #2 on: December 05, 2001, 03:40:33 PM »

A quote from the manual:

"During charge with the supplied charger, DC power to the TR-2600A is automatically OFF, so the TR-2600A can not be operated."

This matches my experience with the unit.  Do you remember how you made yours work?  Were you perhaps using another charger?

Thanks!
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KC2ELS
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« Reply #3 on: December 06, 2001, 03:16:03 AM »

Ah hah.

Further on in the manual, under "Optional Accessories", I found this:

"1.  ST-2 Base Stand
  * Built-in quick charger about 1.5 hours with full
    charge indicator.
  * Full operation while charging.
          Separate Battery Trickle charge and power feed
          for extended base operation.
  * Drop-in connections.

 2.  MS-1 Mobile Stand
  * Cigar Plug for instant connection.
  * Full operation while charging (trickle charge only)
          Separate power feed for extended operation.
          Built-in illumination for keyboard.
  * Drop-in connections."

Either of those plus the VB-2530 25 W RF Power Amplifier and the TU-35B Repeater tone unit would make this thing far more useful.

If you still have accessories or know someone who does and woh is willing to sel them, please let me know!
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WB2WIK
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« Reply #4 on: December 06, 2001, 01:03:08 PM »

I'm not sure of the model number, but I had the base stand, and it did not disconnect battery power during charging cycle on the 2600.

I no longer own the HT, or the stand, or the speaker mike, or anything else for the 2600!  However it worked quite well, better than my more modern HT's in some respects.  Sigh.

WB2WIK/6
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KC2ELS
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« Reply #5 on: December 06, 2001, 03:39:42 PM »

I've compared the TR-2600A with PK-232 to the TH-D7(G) and found the former to be a bit easier to tweak for added sensitivity.  If I can score that cradle, I suspect this packet station setup will work for me for quite some time.

Thanks for your input.  Your comment inspired me to look for the base station, and that's going to make all the difference.
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K1CJS
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« Reply #6 on: March 24, 2002, 11:23:43 AM »

Taking into account the risk of being verbally lashed, check on e-bay and u-bid for older items like this.  I
was on e-bay the other day and saw some charger items
listed.  The asking price wasn't bad either.

Just a suggestion.  You may run into the items at a
local hamfest also, but I wouldn't count on it!!
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