[amsat-bb] Re: AMSAT-BB Digest, Vol 3, Issue 59

Clint Bradford clintbrad4d at earthlink.net
Fri Feb 1 11:13:56 PST 2008

...Interesting.  If you turn off the TNC when not in use, and set
power save, it is no different from any other radio I think.
And nothing has changed in FM "technology" in 30 years...  I
don't understand your bias...

My "bias" comes from knowing from first hand experience that the  
radio is NOT anywhere near as efficient with its energy consumption  
than more current (no pun intended) HTs. That fac has already been  
acknowledged ny another participant here, too. They used to ship with  
a SIX VOLT battery pack - PB-38 - which only allowed 2.5W VHF and  
2.2W UHF ops out of the box. (Ebay buyers beware!!!!) But they now  
ship with a PB-39, offering 12VDC at 600 0r 650mAH and a full five  
Watts power output.

More modern radios are offering full power output with 7.2V and much  
longer-lasting NiMH and Li-Ion battery packs.

Owners (including myself) have "compensated" the TH-D7's poor  
original battery life with aftermarket NiMH packs and the like...But  
in responding to the original poster's inquiry (limited funds), I  
still believe I gave him some good information.

But if one asks, "I need a TNC in an HT...APRS intrigues me..." -  
then the TH-D7a fits the bill.

Clint Bradford, K6LCS / KAF3359

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