HYS dual band base antenna

Status
Not open for further replies.

n1chu

Member
Premium Subscriber
Joined
Oct 18, 2002
Messages
2,874
Location
Farmington, Connecticut
Thought this worthy of sharing;
I purchased a handheld scanner antenna from Amazon for about $23. It’s an HYS Dual Band Base Antenna. But why they call it a base antenna is anyones guess. They come with a BNC or SMA connector. But what really caught my eye is the antennas shape. It’s about as high as the stock rubber duckie but it has a loop on the top that’s about 3 inches round. (If you put a lens in the loop it would resemble a magnifying glass.) You can see a pic of it if you go to Amazon and look for an HYS antenna. Whatever comes up should start with a line that suggests you visit the HYS store. Click on that and start scrolling. You need to scroll for a bit before you come to this particular antenna but its shown as available in the BNC or SMA versions. I found it plays well on the advertised bands and is well constructed. My personal observation is that it hears ok on the 800MHz trunked systems also, but that may be just my close location to the transmitting sites. If nothing else, it’s sure a conversation starter! Below is the description… although it’s listed as a dual band antenna I believe the listing of scanners shown in the last point eludes more to scanners sporting BNC antenna connectors. I think they’d should have worded it this way… This antenna will fit BNC connector radios such as those listed.”

Impedance
50 Ohm
  • 2 Meter/70cm (144Mhz/430Mhz)-136-174Mhz&400-470Mhz Portable Antenna;
  • Gain:2.15/2.8dBi; Maximum Power Input-watts:20W (Handheld radio less than 20W); this is a HYS antenna able to offer a wide range of features to choose from for your handheld transceiver or scanner.
  • Radome Color: Black; Radome material: ABS; Circle Material: CU. Antenna easy to install, whether you need a replacement antennas or want to improve your HT's radiating efficiency and range, HYS dual-band antennas offer a quality solution for your needs.
  • Connector: BNC; Compatible with Icom, Vertex, some Motorola, and some Kenwood Handheld Radios; Working for V8 V80 V80E V82 V85 F3S and other suitable for BNC 2 way radio.
  • Working for 136-174Mhz&400-470Mhz Uniden Bearcat scanner BC125AT, Bearcat BC75XLT, BCD996P2 scanner, Uniden 365rs, SDS100, BCD 396XT, BCD325P2;GRECOM (now Whistler) PSR-800 scanner whistler TRX 1
 

ladn

Explorer of the Frequency Spectrum
Premium Subscriber
Joined
Oct 25, 2008
Messages
1,450
Location
Southern California and sometimes Owens Valley
I purchased a handheld scanner antenna from Amazon for about $23. It’s an HYS Dual Band Base Antenna

This: https://www.amazon.com/HYS-Antennas-136-174Mhz-400-470Mhz-BCD325P2/dp/B08PZ19PN7

1647957371664.png

It looks like a knock off of a foldable military tactical antenna. As has been said here on RR ad Infinitum, antenna specs are frequently more imaginative than factual--especially for an antenna at this price point from Amazon.

Another red flag for this antenna is the "Caulking groove". I've seen lots of BNC antennas, but never, ever, saw a "Caulking groove". This implies the user would put caulk or sealant there.

1647958128255.png
 

n1chu

Member
Premium Subscriber
Joined
Oct 18, 2002
Messages
2,874
Location
Farmington, Connecticut
I imagine the “calking groove” is if the antenna was installed outdoors on a permanent basis, where weatherproofing is a concern… it would give credence to them calling it a “Base” antenna. I have found it to play well even though it’s only supposed to be resonant on the ham bands. It does as well as other aftermarket antennas on the weather frequencies, at least for me.
 

n1chu

Member
Premium Subscriber
Joined
Oct 18, 2002
Messages
2,874
Location
Farmington, Connecticut
I bought one of these antennas to test out and the whip and coil cover came off within minutes tearing the matching coil apart. Complete junk.
What whip? It’s not the same antenna I was talking about-at least not by your description of it having a whip…
 

ladn

Explorer of the Frequency Spectrum
Premium Subscriber
Joined
Oct 25, 2008
Messages
1,450
Location
Southern California and sometimes Owens Valley
I imagine the “calking groove” is if the antenna was installed outdoors on a permanent basis, where weatherproofing is a concern… it would give credence to them calling it a “Base” antenna.
Possibly. But it's more likely a translation error into English. It should be "locking ring" which is an accurate description for that part of a BNC connector. It's anyone's guess how this can be called a "base" antenna, which it no way is.

Put the antenna on a reliable antenna analyzer and compare it with a stock dual band rubber duckie and let's see if those claimed gain figures are reliable.
 

ko6jw_2

Member
Premium Subscriber
Joined
May 18, 2008
Messages
1,462
Location
Santa Ynez, CA
For about the same price you can buy a Diamond RH77CA in your choice of bases. Why do people spend money on these bizarre designs? There is no magic in antenna design especially with handheld antennas. All handheld antennas are a compromise and there is no new radical design that will outperform everything else. There is a bunch of cheap junk that is a waste of money.

Gain figures are impossible to verify. 2.15dBi gain is no gain. A quarter wave ground plane has 2.15dBi gain. Gain over an isotropic antenna is meaningless. Isotropic antennas really don't exist.
 

Ubbe

Member
Joined
Sep 8, 2006
Messages
9,642
Location
Stockholm, Sweden
It's a zero gain antenna at it's tuned frequencies, 144Mhz and 3 times that frequency at 433MHz, that most 144MHz antennas do and are matched properly with the matching coil. It is not supposed to be used folded, that's for transportation to take up less space and not some sort of loop antenna. Being a metal blade antenna it can have a wider frequency range than a rubber duck than contains a thin straight wire.

/Ubbe

61rAkFqvOnS._AC_SX466_.jpg

61YDsiincHL._AC_SY879_.jpg
 

n1chu

Member
Premium Subscriber
Joined
Oct 18, 2002
Messages
2,874
Location
Farmington, Connecticut
Its the same antenna with the flat blade whip.
No, it is NOT. I started this thread so I ought to know which HYS antenna I refer to. it is NOT the measuring tape blade foldable antenna shown. It appears this thread was hyjacked. The antenna I refer to has no foldable whip. What it does have is a loop (aprox 3”) at the end of a short stubby antenna. The overall height is about the same as the stock antenna. There are no moving parts (unless you want to count the BNC connector).
 

n1chu

Member
Premium Subscriber
Joined
Oct 18, 2002
Messages
2,874
Location
Farmington, Connecticut
This: https://www.amazon.com/HYS-Antennas-136-174Mhz-400-470Mhz-BCD325P2/dp/B08PZ19PN7

View attachment 118437

It looks like a knock off of a foldable military tactical antenna. As has been said here on RR ad Infinitum, antenna specs are frequently more imaginative than factual--especially for an antenna at this price point from Amazon.

Another red flag for this antenna is the "Caulking groove". I've seen lots of BNC antennas, but never, ever, saw a "Caulking groove". This implies the user would put caulk or sealant there.

View attachment 118438
The URL is NOT the correct description of the antenna I refer to. Mine has no foldable blade, stands about as tall as the stock antenna with a loop (aprox 3”) at the top… nothing telescopic or foldable.
 

prcguy

Member
Premium Subscriber
Joined
Jun 30, 2006
Messages
16,345
Location
So Cal - Richardson, TX - Tewksbury, MA
I was responding to all the pictures above, that is the antenna I have and it fell apart. If the pictures above are not your antenna why didn't you bring it up earlier?

No, it is NOT. I started this thread so I ought to know which HYS antenna I refer to. it is NOT the measuring tape blade foldable antenna shown. It appears this thread was hyjacked. The antenna I refer to has no foldable whip. What it does have is a loop (aprox 3”) at the end of a short stubby antenna. The overall height is about the same as the stock antenna. There are no moving parts (unless you want to count the BNC connector).
 

n1chu

Member
Premium Subscriber
Joined
Oct 18, 2002
Messages
2,874
Location
Farmington, Connecticut
Then P L E A S E post the URL to the correct product so that we all get on the same page.
Yea, about that… I didn’t post the URL. But I did give ditrections on how to find pics of the product on Amazon. Apparently the directions were followed but the wrong antenna was chosen, there’s a bunch!
 

prcguy

Member
Premium Subscriber
Joined
Jun 30, 2006
Messages
16,345
Location
So Cal - Richardson, TX - Tewksbury, MA

ko6jw_2

Member
Premium Subscriber
Joined
May 18, 2008
Messages
1,462
Location
Santa Ynez, CA
I think term "base" refers to whether it is BMC or SMA. This is one of those antennas that seems like it was designed for the sole purpose of seeing whether anyone would actually buy it rather than based on some valid design theory. We used to see similar marketing for some CB antennas back in the day. If the loop actually works the antenna would presumably be bi-directional. For what purpose? Well, it looks cool. I might actually spend $24 just see what it does. After all, no experiment is ever a total loss. It can always be used as a bad example.

Update: I just ordered one. It's Amazon, I can always return it!
 
Last edited:

n1chu

Member
Premium Subscriber
Joined
Oct 18, 2002
Messages
2,874
Location
Farmington, Connecticut
Status
Not open for further replies.
Top