Unusual antique Chaparral feeds

S

s-band

Member
My Satellite Setup
1.5m IRTE PF, Invacom SNF-031, TBS6983,
Various L, S, C, X & Ka bits. 1.2m S/X/Ku/Ka Prodelin on Az-El (being refurbished), 1.8m Precision PF with Bullseye Ku LNB or various C & X bits
My Location
Essex
Pictures uploaded for posterity
“THIS HORN WAS A PART OF CHAPARRAL COMMUNICATIONS ENGINEERING DEPT. AND WAS BEING USED AS A TEST STANDARD HORN.”
chap4.pngchap3.jpg
The dipole looks too small to be C band but the F type is not good for Ku. Is there an LNB in the back section?

www.ebay.co.uk

CHAPARRAL COMMUNICATIONS PART - DUAL C BAND FEEDHORN - SATELLITE BASE ONLY | eBay

<p dir="ltr" style="margin-top:0; margin-bottom:0;">CHAPARRAL COMMUNICATIONS PART - DUAL C BAND FEEDHORN - SATELLITE BASE ONLY. Sold as is.</p>
www.ebay.co.uk
chap2.jpgchap1.jpg
 
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Not really an antique, there are some nice examples around though nobody has an idea what dish they used for testing.
 
s-band said:
Pictures uploaded for posterity
“THIS HORN WAS A PART OF CHAPARRAL COMMUNICATIONS ENGINEERING DEPT. AND WAS BEING USED AS A TEST STANDARD HORN.”
View attachment 155035View attachment 155036
The dipole looks too small to be C band but the F type is not good for Ku. Is there an LNB in the back section?

www.ebay.co.uk

CHAPARRAL COMMUNICATIONS PART - DUAL C BAND FEEDHORN - SATELLITE BASE ONLY | eBay

<p dir="ltr" style="margin-top:0; margin-bottom:0;">CHAPARRAL COMMUNICATIONS PART - DUAL C BAND FEEDHORN - SATELLITE BASE ONLY. Sold as is.</p>
www.ebay.co.uk
View attachment 155037View attachment 155038
Click to expand...

Yes, iv'e seen these advertised before about six or so months ago and was tempted to have a dabble with the top feed unit to satisfy the operational performance curiosity of the thing but had to 'resist' pushing the button.
 
Feedhorn or Horn antenna ?
 
Trust said:
Feedhorn or Horn antenna ?
Click to expand...

Both really, see how it illuminates on my 2.2 as shown in the pics out of curiosity and then just experiment after that. Iv'e got a multi lnb changer 90% built to have a dabble with on my 2.2 PF reflector when the warmer weather gets here hopefully and that Chaparral unit could come in handy on the changer.
 
The aperture of the horn is unlikely to suit a PF reflector, I tried a while ago on the 3.4m as it is quite a shallow. No better than a mis-shaped scalar.
 
Channel Hopper said:
The aperture of the horn is unlikely to suit a PF reflector, I tried a while ago on the 3.4m as it is quite a shallow. No better than a mis-shaped scala
Click to expand...

I like the fact that the horn is easily detachable lending itself to easier feed experimentation and the design of the intergrated servo polarity into the lnb itself is something iv'e never had any dealings with before so curiousity is setting in - i'm only at the stage of looking and pondering at the moment though
 
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