eHam.net - Amateur Radio (Ham Radio) Community

Call Search
     

New to Ham Radio?
My Profile

Community
Articles
Forums
News
Reviews
Friends Remembered
Strays
Survey Question

Operating
Contesting
DX Cluster Spots
Propagation

Resources
Calendar
Classifieds
Ham Exams
Ham Links
List Archives
News Articles
Product Reviews
QSL Managers

Site Info
eHam Help (FAQ)
Support the site
The eHam Team
Advertising Info
Vision Statement
About eHam.net


Reviews Categories | SWR & Wattmeters & Dummy Loads | Bird 8251 Termaline Coaxial Resistor 1000 Watt Dummy Load Help


Reviews Summary for Bird 8251 Termaline Coaxial Resistor 1000 Watt Dummy Load
Bird 8251 Termaline Coaxial Resistor 1000 Watt Dummy Load Reviews: 1 Average rating: 5.0/5 MSRP: $1,060
Description: Bird Termaline Coaxial Load Resistors are portable, general purpose
50 ohm coaxial transmission line terminations.

Model 8251 load can absorb up to 1000 watts continuously and
dissipate it harmlessly as heat over a frequency range of dc to 2400
MHz. They will show a maximum VSWR of 1.10 from dc to 1000 MHz, 1.25
from 1000 to 2000 MHz and , for Model 8251 only, 1.30 from 2000 to
2400 MHz.

These loads provide accurate, dependable, and practically
nonreflective line terminations. These models are rectangular in
shape with transverse fins encasing a dielectric coolant cylinder. A
retractable handle is recessed in the radiator fins. The front and
rear fins are made of heavier gauge material and are bent 90 to form
bottom mounting flanges. These flanges are supports for free standing
use, or brackets for fixed mounting. Holes are provided in the
flanges for fixed mounting.
Product is in production.
More info: http://www.birdrf.com/Products/Test%20and%20Measurement/Loads/Coaxial-Terminations/1kW/8251-Series_1-kW-Oil-Cooled-Terminations.aspx
Email Subscription
You are not subscribed to this review.

Subscribe!
My Subscriptions
Subscriptions Help

You can write your own review of the Bird 8251 Termaline Coaxial Resistor 1000 Watt Dummy Load.

NG7M Rating: 5/5 Jun 25, 2017 20:40 Send this review to a friend
Looking for a Cadillac of Amateur Dummy Loads? Get a Bird  Time owned: 0 to 3 months
I have reviewed several of the Bird QRO oil cooled dummy loads. The 8251 is a 1 KW continuous load and is perfect in the shack if you are running QRO. You can load this up with a continuous carrier at 1.5 KW for longer than you would ever need... it would even break a sweat at 1.5 KW or even 2 KW for minutes at a time. The rated temp for 1 KW continuous is around the 400f mark and I doubt any Amateur op would ever get the load this hot when testing.

If you can find one of these like I did for less than $200, don't hesitate. This one cleaned up nice and is in perfect working order with clean oil per Birds specifications.

You will never need another QRO dummy load (as I have mentioned in my other reviews for the various Bird models).

If you can find one, you won't be disappointed getting a commercial quality piece of gear for your shack at pennies on the dollar if you take your time on the usual auction site.

Here is a link to the pictures of mine after cleaning it up: http://www.nc7j.com/pa/main.php?cmd=album&var1=NG7M%2FBird8251DummyLoad/

Max NG7M
 


If you have any questions, problems, or suggestions about Reviews, please email your Reviews Manager.