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Replacement Ubiquiti 620mm dish feed horn? Or switch to Mikrotik LHG?

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KM6SLF
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Replacement Ubiquiti 620mm dish feed horn? Or switch to Mikrotik LHG?
The feed horn for my 620mm Ubiquiti dish broke and I'm having a hard time finding a replacement. It's intended to go on a municipal tower so I'm looking for something very robust. Should I keep looking for a replacement feed horn? Switch to a 500mm dish? Or switch to the large Mikrotik LHG?
nc8q
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PBE M5 [3456]?0 mm dish
I think you could gain 2 dBm over your failed radio if the PBE-M5-300
is a physical replacement for the PBE-M5-620 radio.
The 620 has -2 to -3 dBm compared to the 300 and 400 radios.
I don't know if the feed horn antennas are different among the 300, 400, 500, 620;
else the different radios may not 'fully' illuminate the 620 mm dish.
But, the PBE-M5-300 is about 40% of the cost of a PBE-M5-620.
On the other hand, I am totally enamoured with the Mikrotik RBLHG-HP5(n/ac)D-XL
due to its cost and performance.
Has anyone put a PBE-300/400/500 feed in a 620 dish?

73, Chuck


 
KM6SLF
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I have power beam 400 and 500
I have power beam 400 and 500 horns I could try in the 620 dish for fit, but how would you suggest I test for performance, preferably without moving the big dish around?
KM6SLF
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I can also confirm that the
I can also confirm that the different sized dishes have horns of different lengths.
nc8q
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different sized dishes have horns of different lengths.
Very good to know. Thanks.

 
nc8q
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That last 2 dB is kinda expensive

Model        dBi  dBm  ERP  $
PBE-5AC-300   22   25   47
PBE-5AC-400   25   25   50
PBE-5AC-500   27   24   51  159
PBE-5AC-620   29   24   53  219
PBE-M5-300    22   26   48   79
PBE-M5-400    25   26   51   95
PBE-M5-620    29   24   53  2??
PBE-5AC-GEN2  25   24   49  119
LBE-5AC-XR    29   24   53  129 not yet supported
LBE-5AC-GEN2  23   25   48   65
LBE-5AC-"-LR  26   25   51  109
LBE-5AC-"-XR  29   25   54  129 not yet supported

or a Mikrotik RBLHGG5acG-XL 27 25 52 ~$130 Alas, hard to find in single package.

73, Chuck
 

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