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Reviews Categories | Antennas: VHF/UHF+ Omnidirectional: verticals, mobile, etc | Diamond RH77CA Help

Reviews Summary for Diamond RH77CA
Diamond RH77CA Reviews: 41 Average rating: 4.8/5 MSRP: $24.99
Description: Dual-Band HT/Scanner Antenna (BNC)

Gain: 2.15dBi (430 MHz) Max Power: 50W (Watts) Impedance: 50 Ohm Length: 30 cm Weight: 40g Connector: BNC 1/4 wave length (144 MHz), 1/2 wave length (430 MHz) and finally Made in Japan.

Product is in production.
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FORMER_KC2FYA Rating: 5/5 Feb 20, 2018 10:52 Send this review to a friend
Excellent Antenna for FT-70D  Time owned: 0 to 3 months
I purchased for use with my Yaesu FT-70D and I am very pleased with it. I am able to access repeaters with lower power output than before with the supplied rubber duck. I especially note this on the 440 Band.
W4KVW Rating: 4/5 Jul 28, 2017 21:01 Send this review to a friend
It's good but has been Beat  Time owned: more than 12 months
This is a very good dual band antenna like most everyone here says but I do have one that will talk circles around it.It's a JETSTREAM JT776.The JETSTREAM is a 144/220/440 antenna that I am amazed at in transmit & receive.I have a lot of HT's so I have a lot of variety in antennas.The Diamond RH77CA will do the job most of the time but the JETSTREAM JT776 is my Go To Antenna when I need too reach out long distance like working AO-85 because everything else is in the noise.
AA7LX Rating: 5/5 Oct 24, 2016 20:51 Send this review to a friend
Solid built and 16" long  Time owned: 0 to 3 months
Perfect for the Yaesu FT-270R! Solid construction and solid support in the middle of the Whip. Not too long and not to stiff! Have it connected to a BNC to SMA connector on FT-270R. Did my Homework--this Diamond Antenna Whip is recommended for HT's. 1/4 wave on 2M and 1/2 wave on 440MHz. If you are portable and/or don't have access to a Yagi or a Vertical Antenna, this is a quality HT Antenna. Buy it!
KC3PO Rating: 5/5 Jun 17, 2016 03:04 Send this review to a friend
Great performer  Time owned: 6 to 12 months
I have a few different antennas for my VX-7r, and this one is the best performer by a good margin.

Earlier tonight, I happened to be down on street level in an urban concrete jungle during my club's weekly net hosted on a 2m repeater over 30 miles away. I fired up my HT with the intention of just HOPING to be able to listen in on the net. I was pleasantly surprised to hear the net loud and clear - not quite full quieting, but darn close.

Given that I was receiving so well, I decided to go ahead and try to check in - not really expecting to be able to. I got in with no trouble at all - and when I reported where I was, the club was amazed that I was just on an HT!
KE4LAO Rating: 5/5 Apr 24, 2016 19:28 Send this review to a friend
Outstanding performance!  Time owned: 0 to 3 months
I mainly operate on 2M and recently thought, "You know, I should look into another rubber ducky!" So, I hit YouTube and sure enough the first thing I came across is this guy doing a review of the Diamond RH77CA. I poked around a little further and headed to Amazon to purchase. The antennae arrived but regrettably I ordered one with a BNC male connector and had to wait a few days for an adapter to arrive to fit on to my SMA female on the Yaesu FT60 so I could attache the antennae. It worked like a charm and I've been given great feedback when requesting a signal report. I'm also picking up some local police scanner traffic I wasn't able to snag on the rubber ducky that came with my Yaesu FT60. So, all in all I give it an outstanding rating but do encourage you to look carefully at what you are buying so you can avoid needing to use an adapter to lock the antennae in to your handheld. I'm super pleased with it and highly recommend the antennae.
N6MED Rating: 3/5 Feb 25, 2014 09:26 Send this review to a friend
Suspicious gain figures  Time owned: 0 to 3 months
In the old days, owned an RH-77B bought at the old Foothill College Ham Flea Market (Cupertino, CA). Worked well, as I recall.

But, re the specs for the RH77CA: hasn't anyone noticed the gain figure quoted: "Gain: 2.15dBi (430 MHz)" --- that's 2.15 dB >> isotropic << ?!?!?
WB6TNB Rating: 5/5 Jun 8, 2013 21:38 Send this review to a friend
It's everything everyone here says it is   Time owned: 0 to 3 months
This is a major improvement on both 2 meters and 440. It is also an extraordinary scanner antenna. I first saw it on forums, where everyone raved about it. I bought two then after being totally impressed I bought two more. Only one is being used for amateur radio. The rest are on scanners.
KI4GTJ Rating: 5/5 Oct 28, 2012 22:06 Send this review to a friend
Works GREAT !!  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
RAINS Rating: 5/5 Apr 17, 2012 10:03 Send this review to a friend
Great antenna!  Time owned: more than 12 months
I've had this antenna for a few years now. It works great. Improved signal strength on RX and TX. It's not an every day antenna that's for sure. But for events and situations when a short duck won't cut it this is great antenna. Great for scanning too!
It is a little heavy and sure it's long. Still it just works so darn well. Really it's a pain the butt to use on my vx-7r. It's better on larger radios.
One side note this is a 1/4 wave antenna on 2m. Ie it has a high radiation angle. At high elevation when trying to get into a near by repeater at much lower elevation I had problems. So at very high elevations 5k+ when trying to get down into a valley this antenna is not be the best choice. Then again this makes it terrific at reaching out of valleys to hit mountain top repeaters.
I did get into a repeater 130+ miles away with this antenna using only 5w. If your looking for a better rubber duck give this one a try!
K9TSU Rating: 5/5 Feb 18, 2012 07:08 Send this review to a friend
Perfect  Time owned: 6 to 12 months
I have this and the SRH77ca, which has an SMA on it. SIMPLY AMAZING! It's solid, rugged, and gets into repeater amaingly!
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