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Posted

Can anyone get hold of the specs for Ptarmigan Radio Antenna?

 

Frequency etc.

 

NSN 5820-99-647-9537

Also could do with some specs on 5820-99-652-8219

 

Thanks in advance.

 

Russ

Posted

Hi

 

The radio links for Ptarmigan were called Triffid - see:

 

http://www.armedforces.co.uk/army/listings/l0085.html#TRIFFID

 

Trifid UK/TRTC-471 itself was a Siemens product adapted for UK use by Marconis:

 

http://www.armyradio.co.uk/arsc/customer/product.php?productid=1517&cat=0&page=8

http://adsabs.harvard.edu/abs/1981mimi.proc..129D

http://www.ekmpowershop5.com/ekmps/shops/greenmachines/uktrc-471-triffid-radio-station-illustrated-parts-list-1133-p.asp

 

Band I was 225-400MHz, Band II was 610-690MHz and Band III was 1350 to 1850MHz. So the antennas dont seem like a good match to either the 70cm (430-440MHz), 23cm (1.3GHz) or 13cm (2.4GHz) amateur bands :(

 

Hope this helps

 

Iain

Posted

Band I still has good coverage of military airband though.

 

The RF cables on TRIFFID cabins (usually attached to their MJ at Withams) are pretty good quality for ham use - and the strange connectors can be adapted to N-types with the bulkhead sockets. I've still got all sorts of bits kicking around from ours...

 

Stone

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