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Reviews Categories | Antennas: VHF/UHF+ Omnidirectional: verticals, mobile, etc | Diamond SRH77CA Dual Band (2 m /70 CM) HT Antenna Help

Reviews Summary for Diamond SRH77CA Dual Band (2 m /70 CM) HT Antenna
Diamond SRH77CA Dual Band (2 m /70 CM) HT Antenna Reviews: 56 Average rating: 4.0/5 MSRP: $29.95
Description: 15" long, male SMA connector, flexible dual-band antenna for handheld transceivers. 1/4 wave on 2 meters, 2.15 dbi gain on 70 cm (Mfgr claim).
Product is in production.
More info: http://
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You can write your own review of the Diamond SRH77CA Dual Band (2 m /70 CM) HT Antenna.

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SWMAN Rating: 2/5 Nov 1, 2012 04:34 Send this review to a friend
No Good on 2m  Time owned: 0 to 3 months
I had this antenna for about a week then I finally returned it for something else. It works ok for 440 but on 2 meters it is no better than my stock rubber duck on my Yaesu FT-60. At times the stock ant was better on 2 meters.Maybe I will try a similar ant made by Commet.
73 Jim. W5JJG
KB9TMP Rating: 2/5 Oct 31, 2012 17:46 Send this review to a friend
Learned My Lesson  Time owned: more than 12 months
I've had four of these in different versions. I've had two of the SMA, 1 BNC and one Jetstream branded SMA version. They all work great and they all break in the same spot. Right above the load where the metal case has a plastic piece screwed into it that becomes the antenna whip. The only "repair" that I found that works is to epoxy it back together and then use heat shrink tubing over the top of the joint to give it some extra strength. "IF" I ever get another one of these I will put the heat shrink tubing on FIRST before it breaks, which of course it WILL break. It's only a matter of time.
F4GFT Rating: 2/5 Oct 31, 2012 12:15 Send this review to a friend
Broke after about a year of use  Time owned: more than 12 months
I bought the SRH77CA a few months after I got my FT-60. Most of the traffic here is on 70cm, and I surely noticed that I was able to open my usual repeaters with less power. This is the good part.
I give the antenna only 2 points because it broke right above the coil after about 18 months or so of admittedly heavy use. I often used the antenna on a bike, maybe that's too heavy a use. The upper part of the antenna is screwed to the bottom part over a small t
hreaded section, too small in my opinion to make a mechanically realiable connection. I replaced the Diamond with a telescope antenna and have the same results on 70cm, and better results on 2m. I need a robust antenna, and the SRH77CA did not stand the test.
W4JPS Rating: 5/5 Oct 30, 2012 19:48 Send this review to a friend
It is a Nagoya NA-771  Time owned: 0 to 3 months
Waiting on the rigs for these, and will re-review after I get some empirical data points.

However, it appears to be a typical 1/4 wave unity gain antenna for 2m and 1/2 wave for 70cm.

It is more than noteworthy to mention that this antenna appears identical to the DIAMOND SRH77CA in every way vice the logo. Even that has the same font and the packaging is the same... I am guessing NAGOYA is either the OEM or somehow affiliated with DIAMOND.
KI4GTJ Rating: 5/5 Oct 28, 2012 22:15 Send this review to a friend
Great antenna   Time owned: 3 to 6 months
I have own both RH77CA&SRH77CH and they both work great on D-STAR/Analog with the icom IC-80AD,ID-31A. Have placed the SRH77CH on the Back of a Kenwood TM-G707 and am able to get into some Analog repeaters from inside with 5w
AK4TO Rating: 5/5 Aug 10, 2012 14:37 Send this review to a friend
An Awesome SMA HT Antenna  Time owned: 0 to 3 months
This is one powerful little HT antenna!! I went from a MFJ 1715S HT antenna which provided me with no range what so ever inside my apartment to this Diamond SRH77CA, which provides me with a huge range of repeaters when I feel like operating my Yesau FT-60RE inside my apartment!! I definitely recommend this HT antenna!!
KK4EQE Rating: 4/5 Nov 9, 2011 11:14 Send this review to a friend
Nice Dual purpose duckie!  Time owned: 0 to 3 months
All i can say is that it works well, ive had this antenna for a few months now & it definately works better than the stock duckie. From my apartment parking lot i hit the local repeater with my FT-60r @ 5 watts 37.7 miles away full quieting with an s7 return. The stock duckie it was scratchy s3 I also use it on a portable scanner & works great for that as well.
N1KSN Rating: 3/5 Sep 12, 2010 06:53 Send this review to a friend
Nothing special on 2m  Time owned: more than 12 months
The previous review by KD8OPI confirms my own findings on this HT antenna. Recently I used an Agilent E8285A and a MiniCircuits combiner/splitter as a return loss bridge to study the impedance match (return loss) of several HT antennas. The match on 2m for this antenna was 3:1 or worse across the 2m band. It was 1.6:1 or better on 70cm. These results were quite similar to two BNC version RH77CA's I also tested. So I'd say this is a very good UHF monoband antenna, but not special on 2m.
KD8OPI Rating: 3/5 Sep 11, 2010 01:11 Send this review to a friend
The performance is half hype.  Time owned: 0 to 3 months
So for my brand-new Yaesu FT-60R I considered this antenna largely because everyone here raves about it. I've also seen a youtube video review of my HT where the presenter stated that he noticed no difference in performance between the rubber-duck and an unnamed aftermarket antenna that was likely the SRH77CA. Where is the truth people? Well, truth is tricky to find, but I tried my best and will help you all make a decision with my tests.

I have a base station Icom IC-7000 and with a name-brand VHF/UHF antenna up about 15'; I can hit a total of thirty-five 2m and 70 cm repeaters within a 50-mile radius. I took all of these repeater frequencies and loaded them in to the FT-60R. I then simply pressed the PTT and listened to see if I could tag each repeater with either the duck or the SRH77CA attached. The real-world results were interesting.

On 2 meters, the SRH77CA performs no better than the stock rubber duck of the FT-60R. Not an iota. Each antenna hit the identical repeaters at identical power with the identical strength of "quieting" receive on the back-end. FYI, I could hit about 40% of my data set (the repeaters) on the ground, 60% at an elevation 12' above ground with either antenna with identical results. HT's are not base stations, and their antennas are no substitute for a real base antenna.

Ready to declare the antenna a waste of money, I tuned to the WX channels. This is where it got interesting. The Diamond pulled the local station in and pegged it to the right of the meter, an easy s-10. The rubber duck manages a 3-4 on the s-meter, clear copy to be sure but also a clear win for the Diamond. The SRH77CA also barely got one or two of the outlying stations, the rubber duck did not. For comparison, the base antenna pulls in 4-5 cleanly with a few more intelligible through an open squelch. Intrigued, I went to 70 cm.

This is where the Diamond shined most brightly (pun intended). It hit 4 of the 5 70 cm repeaters I use on the base station, compared to 3 of 5 for the rubber duck. It hit one at 0.5W where the duck required 2w. The receive was stronger as well, with stronger S-levels throughout.

Well so where does this leave us? While better on WX and 70 cm, there is NO DIFFERENCE AT ALL between this $20-25 antenna (10% of the cost of my radio)and the supplied duck on 2 m, where most of the vhf/uhf action is in the Dayton area and the rest of the country. Another way to look at it, for a $25 investment, I can hit one additional repeater on 70 cm, decrease power to a second, and listen to scratchy weather reports outside of my local area. Still a 3rd way to look at is is that the supplied duck with the FT-60r is pretty darn good on 2m, as good as a Diamond SRH77CA, and it screws all the way down to the case and seals cleanly where the SRH77CA does not.

It would appear that the reviews of this antenna on eham are a bit generous, a 3 for me.
K2CLH Rating: 4/5 Aug 31, 2010 08:59 Send this review to a friend
Pretty good!  Time owned: 6 to 12 months
I have a Yeasu VX-7R and the stock antenna can hit everything that is around but all with a scratchy signal. The SRH77CA could hit two thirds of the repeaters the stock antenna can but gets it into all of the cleanly.

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