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Reviews Categories | Antenna Switching, Phasing, Controllers | Bird Model 7181 Coaxwitch Help


Reviews Summary for Bird Model 7181 Coaxwitch
Bird Model 7181 Coaxwitch Reviews: 1 Average rating: 5.0/5 MSRP: $500.00
Description: Bird 7181 Coaxwitch, 50-Ohm - 10 Position Coaxial Selector
Switch

Bird's RF Selector Switches employ a unique, rugged and
reliable design which permits positive contact, low
insertion VSWR and negligible cross talk between channels.
The switching mechanism is 4 1/2" of RG-87/U Teflon cable
which is pulled away from the mating Male N connectors and
rotated to the desired switch position.

Positions: 10
Coaxial Circuits: 1
Frequency Range: DC to 10 GHz
Maximum RF Voltage: 500 V
Attenuation For unused channel: - 75 dB (cross talk)
Temperature Range: -60 to +65 C (-76 to +149 F)
Weight: 2-1/2 lbs. (1.1 kg)
Product is in production.
More info: http://www.birdrf.com/Products/Components/Selector-Switches/7181_10-Position-Coaxial-Selector-Switch.aspx
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You can write your own review of the Bird Model 7181 Coaxwitch.

NG7M Rating: 5/5 Jan 16, 2017 15:17 Send this review to a friend
The one and only Bird Coaxwitch  Time owned: 0 to 3 months
I decided to add an entry for the model specific Bird 7181. This is the 10 position Coaxwitch. The other eham entry for the Bird Coaxwitch models has turned into an entry for all of the Coaxwitch models. The picture on this entry is of a new old stock purchase on eBay. I was very lucky to find on in its original box in unused condition. It needed a little cleanup from sitting for a long time, but not much as you will see in the picture links below.

Here is a link to more pictures of this model, including what it looks like on the inside:

http://www.nc7j.com/downloads/ng7m/Bird7181CoaxWitch/

These antenna / coax switches are in a league of their own. The quality is legendary Bird and the quality speaks for itself. I doubt someone would buy a new one, but if you can find one under $200 on eBay, it won't last long.

Here is the link to the manual, which is obviously pretty self explanatory:

http://www.birdrf.com/~/media/Bird/Files/PDF/Products/manuals/921-7181.ashx

 


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