[aprssig] HT-220 HT's for APRS

Brian B. Riley brianbr at mac.com
Thu Jul 19 23:39:27 EDT 2007

I had a Midland 13-509 (220 MHz) that was the backbone link on a very  
busy packet node literally wear the arms off the relay the amazing  
thing was that was even working for the last week before it finally  

cheers ... 73 de brian  riley,  n1bq , underhill center, vermont
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On Jul 19, 2007, at 10:35 PM, Doug Younker wrote:

> Stephen H. Smith wrote:
>> Why would it matter if the unit uses mechanical relays or  
>> electronic switching for PTT?
> As long as the switching time is manageable, I don't think it makes  
> a difference.  Azdens must have been a good buy when the old boys  
> who pioneered packet radio in this part of Kansas built their  
> network, because several where put into packet service 19-20 or so  
> years ago. They use T/R relays and at least one in now in APRS  
> service, relay still clicking it's little ole' heart out. At a more  
> relaxed pace now, since it no longer passes PBBS traffic. :)
> Doug, N0LKK
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