[time-nuts] HP-58532A antenna
Arnold.Tibus at gmx.de
Fri Mar 16 12:19:45 EDT 2007
I have the antenna discussed and actually shown by accelium
on ebay as "GPS ANTENNA HP 58532A L1 LUCENT SYMM...",
in my hands, but mine is labelled underneath as:
P/N 2640NW-D/E Date: 38/00
The gain is (nominal) 26dB, according the label,
(unfortunately I have no Datasheet, and I can not measure
the real characteristics either). I don't see a similarity with the
The same Antenna (apparently) I have in my mind was labelled as
Lucent brand and with 26dB(i) gain as well on same sticker,
P/N KS-24019L112A, LUCENT-CC 407996859
The housing of the original HP-50532A I have on my
desk has a different housing, another mounting part and other
tech data, eg. the gain is specified to be >30dBi to 38dBi at 90°
I confirm that the VT100 looks to be the same as the
HP-50532A, at least from the outside view, but different from the
Datum/ Irvine antenna. --> these are clearly different antennas!
To complete the confusion
I have seen the antenna Lucent KS-24019L112 (on picture),
but this one is looking different again, my impression is
that the mounting tube could be the same as known from
the HP-antenna. The supply voltage is labelled to be 5-26 VDC,
perhaps having an internal down-regulator (higher pwr need?).
I have no further knowledge of this antenna either.
My additional questions:
I would like to know, what is the difference
of the hp-58504A (has a flat top) compared with these
others, how does this one behave? Is this a low cost version?
Can this antenna be mounted on a car roof?
What antenna would be best for time nut purposes with
about 15 to max 20 m length of RG213/ RG214? Or Is it
perhaps better to keep the signal strength at the rx-input
lower by using a coax cable with higher losses (for not
driving the input-amplifier of the GPS receiver into saturation)?
many thanks in advance,
On Thu, 15 Mar 2007 09:08:30 -0700, Randy Warner wrote:
>The HP58532A is also commonly known as the VIC-100:
>Lucent had a special modified version produced with a lower gain LNA for
>short cable lengths. The "KS" spec you supplied is Lucent's P/N for the low
>From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com] On
>Behalf Of Colin Bradley
>Sent: Thursday, March 15, 2007 4:29 AM
>To: time-nuts at febo.com
>Cc: colinbradley10 at yahoo.com
>Subject: [time-nuts] HP-58532A antenna
>I just purchased a GPS antenna on eBay that was listed as an HP-58532A. It
>does not have the look or dimensions of the 58532A. It is marked as a Lucent
>KS-24019L112A. The case is marked with 26dB gain and comes with a type N
>connector. The seller is accelium. Does anyone know if this is in fact a
>58532A or did someone other than HP/Symmetricom produced it?
More information about the time-nuts