Dummy load connection

guttapercha

Member
Joined
Feb 13, 2008
Messages
158
Hi all,
I've been gradually getting back into the hobby and need a dummy load.

Most of the lower price offerings have male (PL-259) connections. Why? I think that in most applications, an SO-239 is desirable, otherwise there is a need for a barrel connector. I had a cantenna many years ago but gave it away prior to a move because I couldn't send it with the movers filled with oil. That was an SO-239. Hoping to go with a dry load this time and spend less than $40. I don't need massive power handling.

Thanks,
JD
 

ladn

Explorer of the Frequency Spectrum
Premium Subscriber
Joined
Oct 25, 2008
Messages
1,560
Location
Southern California and sometimes Owens Valley
Good question.
Since I'm not a product designer, I can only speculate that it's because, unlike the cantenna, many of the smaller dummy loads are designed to be affixed directly to the antenna connector on the radio under test.

Not a big deal for me. I keep some barrel connectors, coax jumpers and adaptors with my SWR meter, antenna analyzer and dummy load.
 

K4EET

Chaplain
Joined
Feb 18, 2015
Messages
2,462
Location
Severn, Maryland, USA
Good question.
Since I'm not a product designer, I can only speculate that it's because, unlike the cantenna, many of the smaller dummy loads are designed to be affixed directly to the antenna connector on the radio under test.
<snip>
Yes, you are correct. The itty-bitty dummy loads, 100 Watts for short periods of time with a PL-259 connection, are meant to attach directly to the radio. Just be aware of the supplied chart that correlates transmit time allowed based on power used. Otherwise, that “magic smoke” may get released from the dummy load. 🤣🤣🤣
 

radiotweester

Member
Joined
Dec 21, 2006
Messages
495
Location
Oregon
I'm not a designer, but I would guess so you can connect it to a meter directly and without the potential issue a chuck of coax can introduce. Most of the professional versions I've seen over the years for VHF/UHF/SHF have a male N connector. Not knowing frequency or power you're wanting to use, but for the price range you listed you might look in to the used Celwave or Decibel units. With the extra cheap Chinese units that say VHF/UHF, watch out for high SWR off that unit.
 
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