Features:

  • 144/440 MHz. Dual-Band High Gain Handheld Antenna
  • T/X: 144/440MHz, R/X: 120~900 MHz
  • Gain: up to 6 dB Max Power: 10 Watts
  • Length: 15", Connection: SMA
  • ** Does not work with Baofeng radios ***
Can be modified to fit SDS100

As is from the factory this antenna will not fit a Uniden SDS100 but if you have a lathe, (doesn't everybody?) you can turn down the base collar about 1/2 mm, add a rubber 'O' ring from the assortment you bought from The Chinese Are Taking Over Freight store and it will fit, maintaining the water resistant qualities of the original.

Improved reception on my BCD436HP

Way better reception compared to the stock antenna that comes with the BCD436HP. I normally tune into 40-45/150/450MHz for California Highway Patrol, and Tulare/Fresno County Fire and Police. In the pictures I provided you can see the difference in length vs the rubber duck antenna. Very good quality antenna at a very good price. I highly recommend this.

Good antenna - doesn't fit on SDS100

I bought this antenna to use on a Uniden SDS100. The Amazon website shows it as an option in the "frequently bought together" area. While both the SDS100 and this antenna use a SMA connection the design of the SDS100 is such that this antenna won't screw all the way down and it doesn't make connection. I exchanged this antenna for the identical antenna with a BNC connection, used the SMA to BNC adapter supplied with the SDS100 and everything works fine. All that said, I still gave a five star review. The antenna does what it is supposed to do. I live in an isolated area where towers and repeaters are few and far between. It brings in the fringe areas and improves the reception which is why I bought it. The seller handled the return and refund process quickly and without any problems. If you are looking for an antenna to brighten up reception from the fringe areas of your scanner this antenna is worth considering - either the Diamond (Original) SRH77CA which is the SMA version or the RH77CA which connects to BNC.

Great for EmOps!

My Yaesu FT1D is a key tool within my Community Emergency Response Team (CERT). We outfitted our entire HAM group of 10 with this radio. A number of us ran into problems with the 'Rubber Duckie' antenna and have switched to others. My decision was the Diamond SRH77CA. For deployments including Search & Rescue, Fires and EmOps exercises, so far it has performed quite well. We just had a tornado exercise where we opted to go to the FRS channel for the event and the antenna worked well both inside and outside. The length takes a bit of familiarization since it is about 3 times as long as the original...but that is simply operator training. It's a good antenna that does what it is supposed to do.

Excellent match for the Uniden BCD436HP scanner

I also have the BNC version of this 77CA antenna from Diamond that works very well with a variety of Ham HT's and other scanners but was looking for an SMA version for the 436HP. I'm not sure why it does a better job receiving 800 MHz Motorola Trunk Simulcast signals compared to the 5 other portable antennas I have - but it does. I also have a PRO-106 scanner and this antenna does very well but in my opinion it is noticeably better on the BCD436HP. If your searching for a excellent portable antenna for the BCD436HP scanner that matches up well I would definitely give this one a try. 73, W8VI

Good antenna

I run these antennas on all of my 2 meter handhelds, and they work significantly better than the stock rubber duckies in the mountains especially. Not nearly as convenient to put on your belt, for sure, but if you are in low signal areas, it seems to add two or three bars to the signal strength. Durably made -- not that I have never bent one, but I'm pretty rough on my radios, and they hold up better than many cheaper long HT antennas to being carried through the woods and put in backpacks and such.

Works perfectly on my Yaesu FT-3DR

The antenna that came with the FT-3DR connect with a repeater about 12 miles away. With the diamond antenna, I can get into the repeater and carry out a conversation with other hams. They say the signal is noisy but perfectly readable.

Great antenna.

Bought this to replace the stock duck on a Yaesu FT-70D. Difference is night-and-day. Great antenna.

Great Dual band HT antenna

The stock antennas coming with most HT ham radios work for close use only. Adding a slightly longer antenna makes a big difference on how far you will transmit and receive. There are a lot of good antennas out there, I've come to like diamond and have had no issues with them. This antenna is solid on the lower end, and flexible on the upper end which I believe reduces the chances of snagging and breaking my antenna. Note it is a dual band 2 meter and 440 and does not cover the 220 range. I have purchased this antenna for all my dual band radios.

Great increase over stock

Great increase over stock. I get about a solid 2 or 3 S unit increase vs stock on our local (25 mile away) repeater. Just what I needed to get in when portable. I use mine with C4FM on a FT1DX and works great! Tough to use when driving lol I use it sometimes on my HT with my sharkrf openspot when driving to get into America link. I think I'll stick to a small stubby for that purpose. But at home and outside it's great.

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