Welcome to give some advice for the transmitter products!!

Welcome to give some advice for the transmitter products!!
We will try to make the product better!!

Thank you

Maybe make and offer RF amplifier add-on units to go with certain transmitters.

Also, maybe offer more types of antennas.

Look at this topic:
http://www.hllyelectronics.com/forums/index.php?action=vthread&forum=1&topic=3

OK, HLLY Electronics will product several kinds of RF Amplifier in the next few monthes!
Also HLLY Electronics will have cheap simple FM transmitter available in half year!

Thank you

A good addition to the product range would be vfo kits(low, medium and high power) in prebuilt or kit form in my estimation.

Yes, add-on outboard RF amplifier. :)

Any chance you would develop a 6-160 meter SSB HF ham radio transceiver? Your company seems to have the skill to break in to that market!

I would like the ability to vary the power. I am considering using the Villa 0.5w transmitter for a church application in the US. I want just enough power to transmit within the confines of a large, two-story, concrete building and minimize the possibility of interference with other audio equipment. There is also the FCC 25mW limit for unlicensed transmitters. So, yes, a variable RF amplifier would be ideal.

TX-99A suggestions:
1- A ground post on the rear for earth ground.
2- Access to adjust the audio input level. As simple as a hole drilled in the side or rear of the cabinet to reach the potentiometer with a small screwdriver.
3- Add 4 small rubber, stick-on feet to the underside.
4- Like Bob said, RF power control. Similar to #2 above but for RF output.
5- A complete printed user manual with schematics. Include a "cutting chart" for the telescopic antenna to show proper lengths of the elements at various frequencies for best SWR.

RDS encoder

It would affect the price but I think a LPF (priority) and RDS would be useful!