Thanks Yaesu for another shiny hand held that we can spend our Covid savings on
FT5D VS FT3D
The FT3D has been discontinued and is no longer available, but what makes the new FT5D different from the FT 3D?
The design has a more colorful impression. The size is almost unchanged.
The main body has the following two strengthening points. ・ Improved waterproofness FT3D IPX5 equivalent → FT5D IPX7 equivalent ・ Speaker volume improvement. Built-in speaker FT3D 700mW → FT5D 1000mW (1W). External SP terminal FT3D 300mW → FT5D 500mW.
Other newly added functions
[Touch & Go operation] by activity monitor (new function) (convenient for simultaneous monitoring of air band )
◆ PMG (primary memory group activity monitor ) function Register frequently used frequencies and press the [PMG] key. only registered with the state (signal intensity) of the frequency display (bar graph up to five channels) moving instantly to that channel by simply touching the bar graph
◆ CAM (CH activity monitor) function
It is possible to register frequencies (memory channels ) frequently used by friends in the CAM group and operate while monitoring the status (signal strength) of each channel with a bar graph . Instantly move to that channel by simply touching the bar graph
◆ Dual LED indicator FT3D has one indicator ◆ The character color of the band to be operated can be switched between white / blue / red ◆ Full-scale robust and shock-resistant structure equipped with a rubber protector ★ New equipment (included) Quick release holster (SHB-26) standard equipment
The easiest way to identify most ferrite materials is to wind about four turns of wire through the core and then measure the lowest frequency at which the value of reactive impedance equal resistive impedance i.e. X=R. There will be some variation between different batches and sizes of materials. But if you can plot the results graphically you can easily identify the ‘signature’ of each material.
Here are my references for some common ferrite materials
Iron powder has a slightly different ‘signature’ it usually has a very low resistive component, which peaks to a higher value near self resonance. The more lossy the material the broader and lower value of resistive peak is apparent.
T200-52 40MHz Lime Green (& Blue or Red) colour common in PC switch mode power supplies – moderate loss T200-26 60MHz Yellow & White colour common in PC switch mode power supplies – high loss T200-2 60MHz Dark Red colour used for HF tuned circuits (& Ruthoff Ununs) – high Q low loss T200-1 70MHz Blue colour not common – moderate loss T200-6 100MHz Yellow colour used for VHF tuned circuits – high Q low loss
A recent read of the various newspapers are showing
A Datron PRC1077 radio supplied to the Afghan army, and another shows what appears to be a Harris tactical hand-held radio, though the blurred image could also be a cheap push-to-talk radio like a Baofeng.
The U.S has provided nearly 2,667 Harris RF-7850M-HH radios to the Afghan military, according to CDR. Patrick L. Evans, a spokesperson for the Defense Security Cooperation Agency.
The Afghan National Security Forces specifically use the PRC-1077, a tactical radio man pack transceiver designed for short range two-way communication, and the OE-254 antenna. The radio and antenna training provides the ANA with the ability to communicate more proficiently across the battlefield.
Many of these radios have found themselves being used by the Taliban Army
The Taliban has made very good use of tactical radios and cell phones to co-ordinate their missions ending in Kabul on the weekend.
Key U.S.-Funded Communications Equipment for the Afghan National Defense and Security Forces (ANDSF) According to Department of Defense (DOD) data, the United States funded about 163,000 key communications equipment items for the ANDSF in fiscal years 2003 through 2016 (see table2).
• The majority of the key communications equipment was tactical radios, which include the high frequency, very high frequency, ultra high frequency, super high frequency, and multiband radios. • About 88 percent of all the key communications equipment items were authorized for procurement by DOD in fiscal years 2003 through 2011. • About 97 percent of the radios included in DOD’s data were manufactured by Harris, Datron, Motorola, or Codan.
Table 2: Quantities and Examples of Key U.S.-Funded Communications Equipment for the Afghan National Defense and Security Forces, Fiscal Years 2003–2016
Category Quantity Examples
Very high frequency radios 75,256 Datron PRC-1070 handheld, Datron PRC-1077 vehicle-mounted, Datron HH7700 handheld
Nontactical radios 66,439 Motorola GM360, Codan NGT SRx, Universal Radio AR-8200 Mark III
High frequency radios 13,464 Codan 2110 manpack, Datron RT-7000 base station
Multiband radios 5,377 Harris RF-5800M base station, Harris RF-7850M vehicle-mounted
Ultra and super high frequency radios 2,107 Harris RF-7800W vehicle-mounted, EF Johnson APCO-25 handheld
Source: GAO analysis of Department of Defense (DOD) data. | GAO-17-667R Notes: The time frame covered by this table refers to the fiscal years in which DOD authorized the equipment for procurement.
Included in the table are 497 high frequency radios and 1,528 very high frequency radios that were authorized in fiscal years 2003 and 2004 using a combination of Foreign Military Financing and international donations, according to DOD data. Those data did not indicate how many of those radios were funded by international donations. The remaining equipment in this category and the other categories was reported as being funded using only U.S. funds. High frequency radios operate in the 3–30 megahertz frequency range, very high frequency radios operate in the 30– 300 megahertz range, ultra high frequency radios operate in the 300–3,000 megahertz range, and super high frequency radios operate in the 3,000–30,000 megahertz range. Multiband radios can operate across more than one of these frequency bands. The nontactical radios category includes commercially available handheld radios that are not designed for use in combat. According to DOD data, about 94,900 of the U.S.-funded communications equipment items were for the Afghan National Army (ANA), and the remaining approximately 67,700 items were for the Afghan National Police (ANP) in fiscal years 2003 through 2016 (see fig. 4). • DOD data show that the ANA received 96 percent of the tactical radios and that the ANP received 95 percent of the nontactical radios. Page 10 GAO-17-667R Afghanistan Security • According to a DOD communications equipment manual, the primary advantage of using high frequency radios is their capability to provide long-range, over-the-horizon communication. However, high frequency radios’ long-range capability makes their communications susceptible to enemy interception. • Very high frequency and ultra high frequency radios are normally limited to line-of-sight communication, so their range is restricted, according to a DOD equipment manual. Very high frequency radios are generally used in the military by combat and combat support units while on the move. Ultra high frequency radios are generally used in the military for ground-to-air communication. Super high frequency radios are used for radar surveillance and satellite communications.
The PAPA System is Southern California’s Most Advanced Analog and Digital Amateur Repeater System.Not displaying correctly? View it in your browser.PAPA Picnic 2021 Sunday August 29 @ 10am Same Great Picnic, and a New Venue!PAPA will be meeting in person on Sunday August 29, 2021 at 10am for the 2021 PAPA Picnic. We will be at the Deer Den Group Area inIrvine Regional Park. The park is located at:1 Irvine Park Road Orange, CA 92869 (at the end of Jamboree Road)
Please RSVP… As in the past, PAPA will be serving a BBQ lunch. In order to have enough food on hand, please follow this link to RSVP. Very Important Park Information!Please Note: There is a $5.00 parking fee.Did we mention there is a Parking fee: $5.Due to higher numbers of visitors and picnicking parties on weekends, Irvine Regional Park has been closing to vehicle traffic due to reaching capacity. Closures typically take place between 12 p.m. and 2 p.m. on Saturday and Sunday. Please plan your visit accordingly.As parking near the Deer Den Group Area is limited, car pooling is encouraged. Please keep an eye out as to the terrain… this site is popular with gophers too.For more park info, please see: https://www.ocparks.com/parks-trails/irvine-regional-parkFor More Info… Please visit our PAPA Picnic 2021 webpage for a video and more details.
The PAPA System is Southern California’s Most Advanced Analog and Digital Amateur Repeater System.Not displaying correctly? View it in your browser.PAPA Ham Camp On The AirWednesday August 18 – Sunday August 22 PAPA Repeaters and HF
Spending Time in the Great OutdoorsThe PAPA Ham Camp Crew will be on Santa Cruz Island Wednesday August 18 thru Sunday August 22. In addition to our PAPA repeaters, they will be working HF during their stay.For details, check in to the Outdoor Net this Sunday evening at 8pm. Remember, the PAPA System is YOUR club, its our members that make the system what it is – GREAT! Get on the AIR, get RADIO ACTIVE!
The PAPA System is Southern California’s Most Advanced Analog and Digital Amateur Repeater System.Not displaying correctly? View it in your browser.PAPA San Diego Luncheon Saturday August 21 @ 11am We have a New Venue!PAPA will be meeting in person on Saturday August 21, 2021 at 11am for the return of the San Diego Luncheon. We will be at the Cocina Del Charro1020 West San Marcos Blvd. San Marcos, CA 92078