GW,
The Grove Shortwave (SW) Pocket-Tenna Antenna was
http://www.grove-ent.com/pocket-tenna.html
mainly designed by Grove for Hand Held Scanners or
"All Band" {HF-VHF-UHF} Hand Held Radios which
simply had a small short Flexible Whip {Rubber Ducky}
Antenna often connected to them using a BNC Connector.
http://groups.yahoo.com/group/Shortw...a/message/9935
First the BNC Connector - Designed for Hand Held Scanners and
Radios that often use them as an Antenna Connector and Input.
Second the Length {Size} - Most of these Hand Held Scanners
and Radios will OverLoad when a Larger Long Wire Antenna :
Say a Dipole 'cut' for the 31 Meter Band is used with them
rendering them useless.
- - - 31 Meter Dipole Antenna 49 Feet Tip-to-Tip.
I would suspect that Grove did a few Trial-and-Error 'design'
{Prototype} Antennas and found that about Twenty Feet was all
that most of these Hand Held Scanners and Radios could handle
before 'Size' {Length} caused a problem with "OverLoading"
the Radio's RF Front-End.
Note - This is about the same length as the 23 Foot Portable
Reel {Roll-Up} Shortwave Antennas that come with, or can be
purchased for most 'portable' AM / FM Shortwave Radios.
Again many of these 'portable' AM / FM Shortwave Radios will
"OverLoad" when a Larger Long Size Antenna is used with them.
Third - What to call {Label} this Antenna :
# 1 - It is End-Fed. {End-Fed}
# 2 - It is made from a single piece of Coax Cable {Liner}
and designed to have Two Equal Sections made-up of the Coax
Shield and Exposed Inner Conductor. {Balanced Mono-Pole}
# 3 - Not Really designed to be Resonant at any Shortwave
(HF) Band and used Across the Shortwave Bands. {All-Band}
What's-In-A-Name : End-Fed Liner Mono-Pole All-Band Antenna ?
TESTING - Again in a Side-by-Side trail it was my observation
using the 20 Foot Grove Shortwave (SW) Pocket-Tenna -vice-
23 Foot Portable Reel {Roll-Up} Shortwave Antenna with a
Grundig Satellit 800 Millennium Radio that the Grove had
as good a signal with less noise then the Roll-Up.
* Roll-Up connected via the Red HI-Z Terminal No-Ground.
* Grove connected via the SO-239 LO-Z Jack No-Ground.
THE QUESTIONS :
? Is the Grove a Great Shortwave Antenna ? -NO-
? For It's Intended Use - Does the Grove Antenna Work ? -YES-
? Is the Grove Worth $20 ? -YES and NO-
-Yes- Price about Right for those who simply want to Buy It to Use.
-No- Easy to Do-It-Yourself : If you have the Skills and Knowledge
plus the Tools and Materials to build it.
AGAIN THE [MY] BOTTOM LINE :
The Grove Shortwave (SW) Pocket-Tenna
http://www.grove-ent.com/pocket-tenna.html
Simple enough to build-it-yourself to play around with
and low cost enough to simply buy-it-and-try-it.
- - - In
,
http://groups.yahoo.com/group/Shortw...a/message/9931
- - - "Greg W:-)" onegammyleg@... wrote:
iane ~ RHF