Products include:   Antennas, RF Linear Power Amplifiers, Band-Pass Filters & Low Noise Pre-Amplifiers (LNAs) for the 70 & 23cm bands, 23cm Down-Converter, DVB-T repeaters, DATV receiver  & Bias Tees    —  For detailed spec. sheets for each product, click on the link highlighted in blue next to the description for a .pdf file that can be down-loaded.   Copies of instruction manuals available upon request.  A detailed test report is furnished with each product.

NEW ! — Digital TV Repeaters —  DVB-T, 70cm in-band, or 23/70cm cross-band (call for quote)

70cm Repeater    8 Watts, Ch 60 in / Ch 57 out  —  Model 70-70R specs

NEW ! — Antennas — first offering is a 23cm, 12dBi Patch Antenna  —  Model 23-14PA specs

70cm  & 23cm RF LINEAR POWER AMPLIFIERS

note:  power ratings are:  P(saturated) for CW & FM  / P(pep) for VUSB-TV & SSB  /  P(average) for DTV

70cm Amplifier, 70W/25W/10W, 53 dB  —  Model 70-9B Specs 11-23

70cm Amplifier, 20/10/3 Watt, 53 dB  —  Model 70-7B specs rev 5-21

23cm  Amplifier, 30/15/4.5 Watt, 49 dB —  Model 23-11A Specs 2-24

NEW ! – 23cm Amplifier, 15/10/2 Watt, 50 dB —  Model 23-12B Specs_revFeb2025

LOW NOISE PRE-AMPLIFIERs   – LNAs, Ultra Broadband Amp, Down-Converter, BPF  & Bias Tee

70cm Pre-Amp, $90, 0.8dB NF, 18dB gain, LNA  —  Model 70-LNA-Dec24

23cm Pre-Amp, $90  0.8dB NF, 14dB gain, LNA — Model 23-LNA Specs

Wide-Band Amp,  $70  250 kHz – 3 GHz (-3dB BW), useful to 8 GHz, 20 dB gain, +22 dBm   —    Model UWBA-103 Specs

23cm Down-Converter, programmable LO, 20dB conv. gain, 1.1dB NF —  Model 23-7 Specs Rev 4-23

70cm Band-Pass Filter   $60 — 420-450 MHz  —  Model 70-BPF Specs_rev2025

23cm Band-Pass Filter   $60 — 1.24 – 1.3 GHz  —    Model 23-BPF Specs

23cm Narrow Band-Pass Filter   $60  —  15 MHz BW   —  Model 23-NB BPF Specs

Bias Tee –  144-1300 MHz, 50 V, 2 Amps,  $30  —  BT-UHFa BiasTeeSpecs

DVB-T  Receiver  $60 — combo DVB-T & S receiver, pre-programmed for 70 & 33cm DATV  —  Combo Rcvr Specs-GT

Rev:  15 Dec. 2025, kh6htv