File list
From HFUnderground
This special page shows all uploaded files. By default the last uploaded files are shown at top of the list.
A click on a column header changes the sorting. Date |
Name | User | Size | Description | Versions |
|---|---|---|---|---|---|
| 13:10, 7 March 2019 | Cobra_29XLR_CB_Radio_DigiMax_Lite_V2_Channel_Kit_Frequency_Expansion.jpg (file) | R4002 | 13 KB | (Cobra 29XLR - Built in the late 1970s right after the FCC expanded the CB band from 23 channels to 40 channels (1977). This particular example has the DigiMax Lite V2 frequency expansion board installed (note how the display says -78 or channel negative ) | 1 |
| 19:35, 6 March 2019 | 27095_RC_Crystals_27_MHz_XTAL.jpg (file) | R4002 | 12 KB | (Transmit and receive crystals for 27 MHz R/C RC remote control system 27.095 MHz 27095 kHz ) | 1 |
| 18:56, 6 March 2019 | Cobra_29LTD_Chrome_AM_CB_Radio_Installation.jpg (file) | R4002 | 55 KB | (Cobra 29LTD Chrome 40 channel AM CB radio installation example. 40 AM CB channels 26.965 MHz to 27.405 MHz 4 watts AM carrier power out of the box. Can be modified for higher transmit power and additional channels or frequencies above and below the lega) | 1 |
| 18:53, 6 March 2019 | Cobra_29LX_AM_CB_Radio_Installation.jpg (file) | R4002 | 32 KB | (Cobra 29LX 40 channel AM CB radio installation example. The Cobra 29 is one of the most common CB radios on the market and has been sold since the 1970s at least. There are, and have been, dozens of different versions of the Cobra 29 on the market. ) | 1 |
| 18:48, 6 March 2019 | Cobra_200_GTL_AM_SSB_CB_Radio_Installation.jpg (file) | R4002 | 65 KB | (Cobra 200 GTL AM/SSB 10 meter export CB radio tuned to CB channel 38 - 27.385 MHz LSB - 27385 kHz LSB mode, showing an export radio installed in a vehicle. ) | 1 |
| 18:44, 6 March 2019 | Galaxy_DX_959_AM_SSB_CB_Radio_Lescomm_Frequency_Mod_Freeband.jpg (file) | R4002 | 74 KB | (Galaxy DX 959 AM SSB 11 meter CB radio with Lescomm 120 channel frequency modification channel kit installed by BellsCB.com tech Screwdriver - Galaxy DX-959 with low band (26.515 MHz to 26.955 MHz), mid band/CB band (26.965 MHz to 27.405 MHz) and high ban) | 1 |
| 16:16, 6 March 2019 | Superstar_3900_Pearce_Simpson_Super_Cheetah_11_Meter_CB_Radio.jpg (file) | R4002 | 98 KB | (Black face version of the Superstar 3900 series 10 meter export CB radio - frequency coverage 25.615 MHz to 28.305 MHz in 6 bands. Built by Ranger/RCI using the same EPT3600 main board as the regular Superstar 3900 series 11 meter rigs. ) | 1 |
| 16:15, 6 March 2019 | RCI_CRT_Superstar_SS3900_Export_Radio_EU_Version.jpg (file) | R4002 | 122 KB | (The famous Superstar 3900 (also known as the CRT SS3900, Superstar 3900EFT (with frequency counter), Superstar 3900F (with frequency counter), Super Jopix 2000 (with frequency counter), Voyage VR9000 (with frequency counter), Voyager VR94, Voyager VR-9000) | 1 |
| 15:19, 6 March 2019 | Galaxy_CB_Radio_In_Truck_Radio_Installation.jpg (file) | R4002 | 49 KB | (Galaxy DX-series CB radio model DX 929 40 channel AM CB radio 26.965-27.405 MHz installed in an 18-wheeler truck cab. Do truckers still use CB radio? Yes they certainly do. ) | 1 |
| 16:32, 1 March 2019 | Old_Time_Radio_6770_kHz_SDR_Waterfall_dewdude_21_Feb_2015.png (file) | R4002 | 247 KB | (SDR# SDR waterfall image of Old Time Radio on 6770 kHz February 21st, 2015 from HFUnderground poster dewdude. Receiver located in grid square FM18gr) | 1 |
| 19:15, 26 February 2019 | UV5R_Ukraine_War_Military_Baofeng.jpg (file) | R4002 | 81 KB | (Ukrainian military using Baofeng UV-5R VHF/UHF handheld radio army use of Baofeng militia UV-5R UV-82 portable radio Russia ) | 1 |
| 00:49, 24 January 2019 | Liberty.jpg (file) | R4002 | 43 KB | (Join, or die.) | 1 |
| 14:24, 15 January 2019 | ICOM_IC_M802_HF_MARINE.jpg (file) | R4002 | 14 KB | 1 | |
| 14:23, 15 January 2019 | SEA_235_HF_MARINE.jpg (file) | R4002 | 40 KB | 1 | |
| 14:22, 15 January 2019 | SEA_209_HF_MARINE.jpg (file) | R4002 | 131 KB | (SEA 209 2-8 MHz HF-SSB marine radio ) | 1 |
| 16:24, 10 January 2019 | Download.jpg (file) | R4002 | 16 KB | (CB savage modification ) | 1 |
| 16:14, 4 January 2019 | CB_overmodulation.jpg (file) | R4002 | 258 KB | (Overmodulated CB radio signal on the 11 meter band.) | 1 |
| 14:36, 20 December 2018 | SINCGARS_2.jpg (file) | R4002 | 163 KB | (Two Datron HH7700 VHF-FM handheld radios (30-88 MHz in 25 kHz steps) and one VHF-FM ECCM radio as part of a tactical military radio display. These radios are currently fielded by the Afghan National Army (ANA) in combination with COTS VHF/UHF gear. ) | 1 |
| 14:35, 20 December 2018 | SINCGARS_1.jpg (file) | R4002 | 124 KB | (Two VHF-FM SINCGARS radios in operation with the US military. Harris RT-1523 ASIP radio with ECCM capability voice and data. ) | 1 |
| 14:32, 26 October 2018 | Icom_IC-A210E.jpg (file) | R4002 | 82 KB | (Icom IC-A210E VHF airband aircraft transceiver, a typical modern VHF-AM airband radio designed for installation in aircraft. ) | 1 |
| 12:42, 28 September 2018 | UNIDENPRO520XL.jpg (file) | R4002 | 257 KB | (Three versions of the extremely popular Uniden PRO 520XL 40 channel AM CB radio. This radio has been sold for decades and remains one of the most popular bare bones CB radios on the market. Its small size and good performance make it a favorite of Jeep ) | 1 |
| 18:12, 21 September 2018 | XT-1_Inside.jpg (file) | R4002 | 89 KB | (Linear Systems XT-1 transmitter [inside view - note the DIP switches for settings, NC or NO control for input, etc] (see also XT-4 transmitter) 10 watt FSK transmitter operating on 27.255 MHz (US version) or 26.995 MHz (Canada version). When used with co) | 1 |
| 18:11, 21 September 2018 | XT-1_Outside.jpg (file) | R4002 | 18 KB | (Linear Systems XT-1 transmitter [outside view] (see also XT-4 transmitter) 10 watt FSK transmitter operating on 27.255 MHz (US version) or 26.995 MHz (Canada version). When used with companion receiver(s) and other transmitter(s) can form the backbone of) | 1 |
| 16:34, 19 September 2018 | FRS.jpeg (file) | R4002 | 46 KB | (Various handheld FRS radios) | 1 |
| 13:08, 19 September 2018 | UV5R_Ukraine_War.jpeg (file) | R4002 | 82 KB | (Baofeng UV-5R VHF/UHF portable handheld walkie talkie radio in Ukraine war. Apparently use of the VHF band 140-174 MHz is quite popular for tactical radio purposes and the Baofeng and similar radios are easily acquired, cheap and effective. ) | 1 |
| 21:10, 12 September 2018 | 4102_Morse_Beacon_Windy_Telemetry_Timing.jpg (file) | Exo | 183 KB | ("Windy" is a pirate beacon which has been logged on 4102.8 kHz CW. It transmits Morse code telemetry of Temperature "TMPfff" degrees Fahrenheit, Battery Voltage "Bvvv" in decivolts, and 5 intervals of "W" wind velocity dit pulses corresponding to revoluti) | 1 |
| 15:41, 30 August 2018 | Motorola_RMM2050_MURS_Radio.jpg (file) | R4002 | 126 KB | (Motorola VHF-FM license free MURS radio ) | 1 |
| 14:41, 17 July 2018 | CaP_4_Twende-15.07.2018.jpg (file) | Zazzle | 138 KB | 1 | |
| 14:38, 17 July 2018 | CaP_4_RF-Board-Details.jpg (file) | Zazzle | 198 KB | 1 | |
| 14:36, 17 July 2018 | CaP_4_LC-Impedancematch.jpg (file) | Zazzle | 220 KB | (Common and Precious 4, Impedance Matching) | 1 |
| 14:35, 17 July 2018 | CaP_4_Headcapacity.jpg (file) | Zazzle | 69 KB | (Common and Precious 4, Top Capacity) | 1 |
| 14:35, 17 July 2018 | CaP_4_Solar-Charger.jpg (file) | Zazzle | 270 KB | (Common and Precious 4, Solar Charger) | 1 |
| 14:34, 17 July 2018 | CaP_4_Electronics_Closeup.jpg (file) | Zazzle | 230 KB | (Common and Precious 4, Transmitter Unit details) | 1 |
| 14:33, 17 July 2018 | CaP_4_Panel-01.jpg (file) | Zazzle | 416 KB | (Common and Precious 4, PV Module and Transmitter Unit) | 1 |
| 14:32, 17 July 2018 | CaP_4_Setup-02.jpg (file) | Zazzle | 163 KB | (Common and Precious 4, complete Setup) | 1 |
| 12:53, 6 July 2018 | Superstar_121.jpg (file) | R4002 | 69 KB | (Superstar 121 AM/FM export radio 26.515-27.855 MHz (see similarities with Connex Deer Hunter and Connex Coyote Hunter - these are all the same radio with different frequency coverage...)) | 1 |
| 12:48, 6 July 2018 | Connex_Deer_Hunter.jpg (file) | R4002 | 60 KB | (Connex Deer Hunter AM/FM export CB radio 26.065-27.405 MHz - marketed towards hunters as a "hunting radio" - see also Connex Coyote Hunter, which covers 25.615-27.405 MHz ) | 1 |
| 12:47, 6 July 2018 | Connex_Coyote_Hunter.jpg (file) | R4002 | 58 KB | (Connex Coyote Hunter AM/FM export CB radio 25.615-27.405 MHz made by RCI/Ranger ) | 1 |
| 17:57, 25 February 2018 | MapasconFrecuenciasAereas.jpg (file) | Nomadiq | 1.14 MB | 1 | |
| 19:20, 4 February 2018 | Amphetamine_Radio_SSTV_6950_kHz_USB_2.jpg (file) | R4002 | 31 KB | (Amphetamine Radio SSTV 6950 kHz - 3 February 2018) | 1 |
| 19:18, 4 February 2018 | Amphetamine_Radio_SSTV_6950_kHz_USB_1.jpg (file) | R4002 | 33 KB | (Amphetamine Radio SSTV image received on 6950 kHz USB mode - 3 Feb 2018) | 1 |
| 17:25, 3 October 2017 | Untitled_27.png (file) | ChrisSmolinski | 370 KB | 1 | |
| 16:04, 30 September 2017 | Wrno.png (file) | ChrisSmolinski | 2.04 MB | 1 | |
| 15:45, 29 September 2017 | Screen_Shot_2017-09-29_at_11.44.08_AM.png (file) | Nomadiq | 332 KB | (An example of Pedro's Modulation Skills) | 1 |
| 11:33, 19 June 2017 | 11M-CaP-Antenna-Matching.jpg (file) | Zazzle | 167 KB | (Common and Precious 3 Antenna Matching) | 1 |
| 10:58, 19 June 2017 | CaP-Chester-Cheshire-UK-WebSDR-19.06.2017.jpg (file) | Zazzle | 129 KB | (Common and Precious 3 Beacon, WebSDR Chester, Cheshire UK On Monday, 19.06.2017) | 1 |
| 10:44, 19 June 2017 | 11M-CaP-Pole-Antenna-Sidelook.jpg (file) | Zazzle | 100 KB | (Common adn Precious 3 Antenna) | 1 |
| 10:44, 19 June 2017 | 11M-CaP-Pole-Antenna-Lookup.jpg (file) | Zazzle | 70 KB | (Common and Precious 3 Antenna) | 1 |
| 10:43, 19 June 2017 | 11M-CaP-Pole-SWR.jpg (file) | Zazzle | 169 KB | (Common and Precious 3 SWR Reading) | 1 |
| 10:43, 19 June 2017 | 11M-CaP-Pole-Mount.jpg (file) | Zazzle | 146 KB | (Common and Precious 3 Antenna pole mount) | 1 |
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