has anyone done a permanent install of a usrp1 or usrp2 with heavy duty
feed line? pictures?? how to secure everything? my coax is just lmmr400
with a N Male, i need either a jumper cable or adapter. which has method
works best? suggested vendors? thanks
On Aug 19, 2010, at 5:15 AM, dave k wrote:
has anyone done a permanent install of a usrp1 or usrp2 with heavy duty feed line? pictures?? how to secure everything? my coax is just lmmr400 with a N Male, i need either a jumper cable or adapter. which has method works best? suggested vendors? thanks
A short jumper cable between the thick LMR400 cable and the USRP might
be a good idea for strain relief. You can order all of the required
adapters and cables from a distributor like Digi-Key, or a cable/adapter
vendor like Pasternack. Pasternack will also make custom cables in
single quantity.
–
Mark J. Blair, NF6X [email protected]
Web page: http://www.nf6x.net/
GnuPG public key available from my web page.
On Aug 19, 2010, at 5:15 AM, dave k wrote:
has anyone done a permanent install of a usrp1 or usrp2 with heavy duty feed line? pictures?? how to secure everything? my coax is just lmmr400 with a N Male, i need either a jumper cable or adapter. which has method works best? suggested vendors? thanks
A short jumper cable between the thick LMR400 cable and the USRP might be a good idea for strain relief. You can order all of the required adapters and cables from a distributor like Digi-Key, or a cable/adapter vendor like Pasternack. Pasternack will also make custom cables in single quantity.
I’ll add Jameco and Mouser to the list of vendors who sell RF
adaptors/cables, etc.
When I’ve had to do this, I’ve put an ‘N’ to SMA on the fat cable, and
used a short piece of thin flexible cable with SMAs on it.
Jameco stocks cables with SMAs with both RG58 and RG-174. The RG174
is thin, but lossy, so you don’t want to use too much of
it, depending on your operating frequency.
–
Marcus L.
Principal Investigator
Shirleys Bay Radio Astronomy Consortium
On Aug 19, 2010, at 11:10 AM, Marcus D. Leech wrote:
When I’ve had to do this, I’ve put an ‘N’ to SMA on the fat cable, and
used a short piece of thin flexible cable with SMAs on it.
That’s exactly what I did in my semi-permanent GPS-disciplined
oscillator installation. I also do the same thing when I connect my
outdoor discone antenna to my USRP. Both of them have thick feedlines
(similar to RG8, LMR400, etc.) terminated with male N connectors, and
that’s a lot of mass and leverage to hang off a little SMA connector.
–
Mark J. Blair, NF6X [email protected]
Web page: http://www.nf6x.net/
GnuPG public key available from my web page.